WO2016136974A1 - 基板処理装置、デバイス製造システム及びデバイス製造方法 - Google Patents
基板処理装置、デバイス製造システム及びデバイス製造方法 Download PDFInfo
- Publication number
- WO2016136974A1 WO2016136974A1 PCT/JP2016/055905 JP2016055905W WO2016136974A1 WO 2016136974 A1 WO2016136974 A1 WO 2016136974A1 JP 2016055905 W JP2016055905 W JP 2016055905W WO 2016136974 A1 WO2016136974 A1 WO 2016136974A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- substrate
- line
- modules
- speed
- width direction
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/7085—Detection arrangement, e.g. detectors of apparatus alignment possibly mounted on wafers, exposure dose, photo-cleaning flux, stray light, thermal load
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70733—Handling masks and workpieces, e.g. exchange of workpiece or mask, transport of workpiece or mask
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70358—Scanning exposure, i.e. relative movement of patterned beam and workpiece during imaging
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70358—Scanning exposure, i.e. relative movement of patterned beam and workpiece during imaging
- G03F7/70366—Rotary scanning
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
- G03F7/70758—Drive means, e.g. actuators, motors for long- or short-stroke modules or fine or coarse driving
Definitions
- the present invention relates to a substrate processing apparatus, a device manufacturing system, and a device manufacturing method.
- a scanning drawing apparatus that performs drawing at a predetermined position on a sheet-like medium (substrate) is known (for example, see Patent Document 1).
- the scanning drawing apparatus includes a drawing table, a laser light source, an optical modulator, and a scanning optical system.
- the drawing table is transported in the transport direction (sub-scanning direction) with the medium placed thereon.
- the laser light source emits laser light toward the optical modulator.
- an acousto-optic modulator (AOM: Acousto Optic Modulator) is used as the optical modulator, and modulates the laser light emitted from the laser light source.
- AOM Acousto Optic Modulator
- the optical modulator When switched on, the optical modulator deflects the laser light by diffraction and projects the laser light onto the medium. On the other hand, when the optical modulator is switched OFF, the laser light is not deflected and is not projected onto the medium.
- the scanning optical system scans the laser beam emitted from the optical modulator in a scanning direction along a predetermined scanning line from a scanning start end to a scanning end end on the medium.
- the scanning drawing apparatus modulates the laser beam by the optical modulator while the medium is conveyed in the sub-scanning direction by the drawing table, and scans the spot light of the laser beam modulated by the scanning optical system in the scanning direction. Then, drawing on the medium.
- the substrate to be drawn becomes larger as the device becomes larger.
- the pattern drawn on the substrate becomes larger.
- the scanning drawing apparatus of Patent Document 1 since drawing is performed with one scanning line, when the pattern drawn on the substrate becomes large, the scanning line by the spot light of the laser light becomes long.
- the length of the scanning line since the length of the scanning line is limited, the size of the pattern drawn on the substrate is limited by the length of the scanning line.
- a so-called multi-beam type drawing method in which a pattern is drawn on a substrate by a plurality of scanning lines (drawing lines) can be considered.
- a multi-beam type drawing system a plurality of drawing lines are arranged in the direction of the scanning line, and each pattern formed by each scanning line is spliced in the width direction orthogonal to the substrate transport direction.
- a large pattern can be drawn on the substrate.
- a substrate transport mechanism that transports at a predetermined speed in a transport direction intersecting the width direction of the substrate while supporting a substrate of a predetermined width, and a drawing beam projected on the substrate
- a plurality of drawing modules for drawing a predetermined pattern on the substrate along a drawing line obtained by scanning in the width direction within a range narrower than the width of the substrate, and each of the plurality of drawing modules
- a drawing apparatus in which the drawing lines adjacent to each other in the width direction are arranged at a predetermined interval in the transport direction so that the patterns drawn on the substrate are joined together in the width direction of the substrate;
- An inclination adjustment mechanism for adjusting a relative inclination of the drawing line with respect to the width direction of the substrate; and a substrate speed detection device for detecting a conveyance speed of the substrate, the substrate speed detection device. Therefore, based on the transport speed of the substrate to be detected, a substrate processing apparatus for adjusting the relative inclination of the drawing line by the inclination adjustment mechanism is provided.
- a device manufacturing system including the substrate processing apparatus according to the first embodiment of the present invention is provided.
- the drawing from each of the plurality of drawing modules is performed on the photosensitive layer formed on the substrate using the substrate processing apparatus according to the first aspect of the present invention. Scanning a beam to draw a spliced pattern and processing the substrate to form a device layer structure on the spliced pattern according to the spliced pattern. A method is provided.
- FIG. 1 is a view showing the overall configuration of an exposure apparatus (substrate processing apparatus) according to the first embodiment.
- FIG. 2 is a perspective view showing the arrangement of the main parts of the exposure apparatus of FIG.
- FIG. 3 is a diagram illustrating an arrangement relationship between the alignment microscope and the drawing line on the substrate.
- FIG. 4 is a view showing the arrangement of the rotating drum and drawing apparatus of the exposure apparatus of FIG.
- FIG. 5 is a plan view showing the arrangement of the main parts of the exposure apparatus of FIG.
- FIG. 6 is a perspective view showing the configuration of the branching optical system of the exposure apparatus shown in FIG.
- FIG. 7 is a view showing the arrangement relationship of the scanners in a plurality of drawing modules provided in the exposure apparatus of FIG. FIG.
- FIG. 8 is a perspective view showing an arrangement relationship among the alignment microscope, the drawing line, and the encoder head on the substrate.
- FIG. 9 is a perspective view showing the surface structure of the rotating drum of the exposure apparatus of FIG.
- FIG. 10 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the first embodiment.
- FIG. 11 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the first embodiment.
- FIG. 12 is a view showing an image of CAD information used in the exposure apparatus of the first embodiment.
- FIG. 13 is a view showing the configuration of a part of the f- ⁇ lens system of the exposure apparatus of the second embodiment.
- FIG. 14 is a diagram showing the configuration of the cylindrical lens of the f- ⁇ lens system of FIG.
- FIG. 15 is a diagram illustrating an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the second embodiment.
- FIG. 16 is a diagram showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the second embodiment.
- FIG. 17 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the third embodiment.
- FIG. 18 is a diagram showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line when the exposure apparatus of the fourth embodiment does not correct the inclination of the drawing line.
- FIG. 15 is a diagram illustrating an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the second embodiment.
- FIG. 16 is a diagram showing an example of an arrangement relationship between a pattern drawn
- FIG. 19 is a diagram illustrating an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line after the inclination of the drawing line is corrected by the exposure apparatus of the fourth embodiment.
- FIG. 20 shows an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line when the inclination of the drawing line is corrected in accordance with unevenness in the conveyance speed of the substrate by the exposure apparatus of the fourth embodiment.
- FIG. FIG. 21 is a flowchart showing a device manufacturing method using the exposure apparatus of the first to fourth embodiments.
- FIG. 1 is a view showing the overall configuration of an exposure apparatus (substrate processing apparatus) according to the first embodiment.
- the substrate processing apparatus of the first embodiment is an exposure apparatus EX that performs an exposure process on a substrate P, and the exposure apparatus EX is incorporated in a device manufacturing system 1 that performs various processes on the exposed substrate P to manufacture devices. ing. First, the device manufacturing system 1 will be described.
- the device manufacturing system 1 is a line (flexible / electronic device manufacturing line) for manufacturing electronic devices such as flexible displays, multilayer flexible wiring, and flexible sensors as devices.
- a flexible display will be described as an example of an electronic device.
- Examples of the flexible display include an organic EL display.
- the device manufacturing system 1 is configured such that a substrate P is fed from a supply roll (not shown) in which a flexible (flexible) long substrate P is wound in a roll shape, and various processes are performed on the fed substrate P. After the substrate is continuously applied, a so-called roll-to-roll system is adopted in which the processed substrate P is wound as a flexible device on a collection roll (not shown).
- a substrate P that is a film-like sheet is sent out from a supply roll, and the substrate P sent out from the supply roll is sequentially processed into a process apparatus U1, an exposure apparatus EX, and a process apparatus.
- a process apparatus U1 an exposure apparatus EX, and a process apparatus.
- U2 The example until it winds up by the collection
- substrate P used as the process target of the device manufacturing system 1 is demonstrated.
- a foil (foil) made of a resin or a metal such as stainless steel or an alloy is used for the substrate P.
- the material of the resin film include polyethylene resin, polypropylene resin, polyester resin, ethylene vinyl copolymer resin, polyvinyl chloride resin, cellulose resin, polyamide resin, polyimide resin, polycarbonate resin, polystyrene resin, and vinyl acetate resin. Includes one or more.
- the thermal expansion coefficient may be set smaller than a threshold corresponding to the process temperature or the like, for example, by mixing an inorganic filler with a resin film.
- the inorganic filler may be, for example, titanium oxide, zinc oxide, alumina, silicon oxide or the like.
- the substrate P may be a single layer of ultrathin glass having a thickness of about 100 ⁇ m manufactured by a float process or the like, or a laminate in which the above resin film, foil, or the like is bonded to the ultrathin glass. It may be.
- the substrate P thus configured becomes a supply roll by being wound in a roll shape, and this supply roll is mounted on the device manufacturing system 1.
- the device manufacturing system 1 equipped with the supply roll repeatedly executes various processes for manufacturing the device on the substrate P sent out from the supply roll. For this reason, a plurality of devices (for example, display panels for televisions and personal computers) are formed on the processed substrate P in a state where they are connected at a predetermined interval in the longitudinal direction. That is, the substrate P sent out from the supply roll is a multi-sided substrate.
- the substrate P may be activated by modifying the surface in advance by a predetermined pretreatment, or may be formed with a fine partition structure (uneven structure) for precise patterning on the surface.
- the treated substrate P is recovered as a recovery roll by being wound into a roll.
- the collection roll is attached to a dicing device (not shown).
- the dicing apparatus equipped with the collection roll divides the processed substrate P for each device (dicing) to form a plurality of devices.
- the dimension of the substrate P is, for example, about 10 cm to 2 m in the width direction (short direction), and the length direction (long direction) is a supply roll that can be mounted on the processing apparatus. Depending on the maximum diameter of the collection roll, it may be several hundred to several thousand meters.
- substrate P is not limited to an above-described dimension. Further, it is not necessarily required to be in the form of transporting the substrate that is supplied from the supply roll and recovered by the recovery roll.
- the device manufacturing system 1 includes a process apparatus U1, an exposure apparatus EX, and a process apparatus U2.
- FIG. 1 an orthogonal coordinate system in which the X direction, the Y direction, and the Z direction are orthogonal to each other is shown.
- the X direction is a direction from the process apparatus U1 to the process apparatus U2 through the exposure apparatus EX in the horizontal plane.
- the Y direction is a direction orthogonal to the X direction in the horizontal plane, and is the width direction of the substrate P.
- the Z direction is a direction (vertical direction) orthogonal to the X direction and the Y direction.
- the process apparatus U1 performs a pre-process (pre-process) on the substrate P to be exposed by the exposure apparatus EX.
- the process apparatus U1 sends the preprocessed substrate P toward the exposure apparatus EX.
- the substrate P sent to the exposure apparatus EX is a substrate (photosensitive substrate) P having a photosensitive functional layer (photosensitive layer) formed on the surface thereof.
- the photosensitive functional layer is uniformly or selectively applied as a solution on the substrate P and dried to form a layer (film).
- a typical photosensitive functional layer is a photoresist, but as a material that does not require development processing, a photosensitive silane coupling material (SAM) in which the lyophobic property of a portion irradiated with ultraviolet rays is modified, Alternatively, there is a photosensitive reducing material in which a plating reducing group is exposed in a portion that has been irradiated with ultraviolet rays.
- the pattern portion exposed to ultraviolet rays on the substrate P is modified from lyophobic to lyophilic, so that the lyophilic portion A conductive ink (ink containing conductive nanoparticles such as silver and copper) is selectively applied thereon to form a pattern layer.
- a photosensitive reducing material is used as the photosensitive functional layer, the plating reducing group is exposed to the pattern portion exposed to the ultraviolet rays on the substrate P. Therefore, after the exposure, the substrate P is immediately subjected to electroless plating containing palladium ions or the like. A pattern layer made of palladium is formed (deposited) by immersing in the liquid for a certain time.
- the exposure apparatus EX draws a pattern such as a display panel circuit or wiring on the substrate P supplied from the process apparatus U1. Although details will be described later, the exposure apparatus EX exposes a predetermined pattern on the substrate P by a plurality of drawing lines LL1 to LL5 obtained by scanning each of the plurality of drawing beams LB in a predetermined scanning direction. .
- the substrate P that has been subjected to the exposure process by the exposure apparatus EX is sent to the process apparatus U2, and the process apparatus U2 performs a post-process (post-process) on the substrate P. As a result, a specific pattern layer of the electronic device is formed on the surface of the substrate P.
- FIG. 2 is a perspective view showing the arrangement of the main parts of the exposure apparatus of FIG.
- FIG. 3 is a diagram illustrating an arrangement relationship between the alignment microscope and the drawing lines on the substrate.
- FIG. 4 is a view showing the arrangement of the rotating drum and drawing apparatus of the exposure apparatus of FIG.
- FIG. 5 is a plan view showing the arrangement of the main parts of the exposure apparatus of FIG.
- FIG. 6 is a perspective view showing the configuration of the branching optical system of the exposure apparatus shown in FIG.
- FIG. 7 is a view showing the arrangement relationship of the scanners in a plurality of drawing modules provided in the exposure apparatus of FIG.
- FIG. 8 is a perspective view showing an arrangement relationship among the alignment microscope, the drawing line, and the encoder head on the substrate.
- FIG. 9 is a perspective view showing the surface structure of the rotating drum of the exposure apparatus of FIG.
- the exposure apparatus EX is an exposure apparatus that does not use a mask, that is, a so-called raster scan type drawing exposure apparatus (direct drawing exposure machine). By scanning spot light in a predetermined scanning direction, drawing is performed on the surface of the substrate P to form a predetermined pattern.
- the exposure apparatus EX includes a drawing device 11, a substrate transport mechanism 12, alignment microscopes AM1 and AM2, and a control device 16.
- the drawing apparatus 11 draws a predetermined pattern on a part of the substrate P transported by the substrate transport mechanism 12 by using a plurality of drawing modules UW1 to UW5.
- the substrate transport mechanism 12 transports the substrate P transported from the process device U1 in the previous process to the process device U2 in the subsequent process at a predetermined speed.
- the alignment microscopes AM1 and AM2 detect an alignment mark or the like formed in advance on the substrate P in order to relatively align (align) the drawing pattern drawn on the substrate P and the substrate P.
- the control device 16 controls each part of the exposure apparatus EX and causes each part to execute processing.
- the control device 16 may be a part or all of a host control device that controls the device manufacturing system 1.
- the control device 16 may be a device that is controlled by a higher-level control device and is different from the higher-level control device.
- the control device 16 includes, for example, a computer.
- the exposure apparatus EX includes an apparatus frame 13 that supports the drawing apparatus 11 and the substrate transport mechanism 12, and a rotary drum DR that is supported by the apparatus frame 13 and is also a part of the substrate transport mechanism 12.
- a rotation position detection mechanism (see FIGS. 4 and 8 for details) 14 that measures the rotation position (angular position) is provided.
- a light source device CNT that emits laser light (pulse light) as a drawing beam LB is provided in the exposure apparatus EX.
- the drawing beam LB in the ultraviolet wavelength region emitted from the light source device CNT is adjusted to a predetermined optical state in the drawing device 11 and is scanned one-dimensionally by the optical scanning mechanism, and the rotating drum of the substrate transport mechanism 12. It is projected as spot light of a predetermined diameter on the substrate P held and transported by the outer peripheral surface of the DR.
- the exposure apparatus EX shown in FIG. 1 is stored in a temperature control chamber EVC.
- the temperature control chamber EVC is installed on the installation surface E of the manufacturing factory via passive or active vibration isolation units SU1, SU2.
- the anti-vibration units SU1, SU2 are provided on the installation surface E, and reduce vibration from the installation surface E.
- the temperature control chamber EVC suppresses a shape change due to the temperature of the substrate P transported inside by keeping the inside at a predetermined temperature.
- the substrate transport mechanism 12 includes an edge position controller EPC, a drive roller DR4, a tension adjustment roller RT1, a rotary drum DR, a tension adjustment roller RT2, a drive roller DR6, and a drive roller DR7 in order from the upstream side in the transport direction of the substrate P. is doing.
- the edge position controller EPC adjusts the position in the width direction of the substrate P transported from the process apparatus U1.
- the edge position controller EPC is arranged so that the position at the end (edge) in the width direction of the substrate P sent from the process apparatus U1 falls within a range of about ⁇ 10 ⁇ m to several tens ⁇ m with respect to the target position. Is moved in the width direction to correct the position of the substrate P in the width direction.
- the positioning accuracy in the width direction (Y direction) of the substrate P by the edge position controller EPC is within the adjustable range of the exposure position (drawing position), that is, the range in which the drawing device 11 can adjust the scanning position by the spot light. Is desirable.
- the driving roller DR4 rotates while pinching both front and back surfaces of the substrate P conveyed from the edge position controller EPC, and conveys the substrate P toward the rotating drum DR by sending the substrate P downstream in the conveyance direction.
- the rotating drum DR rotates around the rotation center line AX2 around the rotation center line AX2 extending in the Y direction while supporting the portion of the substrate P that is subjected to pattern exposure in a cylindrical shape, thereby rotating the substrate P around the rotation center line AX2.
- Transport In order to rotate such a rotating drum DR around the rotation center line AX2, shaft portions Sf2 coaxial with the rotation center line AX2 are provided on both sides of the rotation drum DR.
- Rotational torque from a drive source (not shown) (such as a motor or a reduction gear mechanism) is given to the shaft portion Sf2.
- a drive source such as a motor or a reduction gear mechanism
- the two sets of tension adjusting rollers RT1 and RT2 give a predetermined tension to the substrate P which is wound around and supported by the rotary drum DR.
- the two sets of drive rollers DR6 and DR7 are arranged at a predetermined interval in the transport direction of the substrate P, and give a predetermined slack (play) DL to the exposed substrate P.
- the drive roller DR6 rotates while sandwiching the upstream side of the substrate P to be transported, and the drive roller DR7 rotates while sandwiching the downstream side of the substrate P to be transported to direct the substrate P toward the process apparatus U2. Transport.
- the slack DL is given to the substrate P, it is possible to absorb fluctuations in the conveyance speed of the substrate P that occur on the downstream side in the conveyance direction with respect to the drive roller DR6, and exposure processing to the substrate P due to fluctuations in the conveyance speed. The influence of can be cut off.
- the substrate transport mechanism 12 adjusts the position of the substrate P transported from the process apparatus U1 in the width direction by the edge position controller EPC.
- the substrate transport mechanism 12 transports the substrate P, whose position in the width direction has been adjusted, to the tension adjustment roller RT1 by the driving roller DR4, and transports the substrate P that has passed through the tension adjustment roller RT1 to the rotary drum DR. Accordingly, the substrate P is supported in close contact with the outer peripheral surface of the rotary drum DR in a state where a predetermined tension is applied in the longitudinal direction.
- the substrate transport mechanism 12 transports the substrate P supported by the rotary drum DR toward the tension adjustment roller RT2 by rotating the rotary drum DR.
- the substrate transport mechanism 12 transports the substrate P transported to the tension adjustment roller RT2 to the drive roller DR6, and transports the substrate P transported to the drive roller DR6 to the drive roller DR7. Then, the substrate transport mechanism 12 transports the substrate P toward the process apparatus U2 while giving a slack DL to the substrate P by the drive roller DR6 and the drive roller DR7.
- FIG. 2 is a perspective view showing the arrangement of the main parts of the exposure apparatus of FIG. 2 is an orthogonal coordinate system in which the X direction, the Y direction, and the Z direction are orthogonal to each other, and is an orthogonal coordinate system similar to that in FIG.
- the exposure apparatus EX includes an apparatus frame 13 that supports the drawing apparatus 11 shown in FIG. 1 and the rotating drum DR of the substrate transport mechanism 12.
- the apparatus frame 13 shown in FIG. 2 includes, in order from the lower side in the Z direction, a main body frame 21, a three-point seat support portion 22, a first optical surface plate 23, a rotation mechanism 24, and a second optical surface plate 25. have.
- the main body frame 21 is installed on the installation surface E via the vibration isolation units SU1, SU2.
- the main body frame 21 rotatably supports the rotary drum DR and the tension adjusting rollers RT1 (not shown) and RT2.
- the first optical surface plate 23 is provided above the rotary drum DR in the vertical direction, and is installed on the main body frame 21 via the three-point seat support portion 22.
- the three-point seat support part 22 supports the first optical surface plate 23 kinematically at three support points (by steel balls and V grooves), and the Z direction at each support point can be adjusted. For this reason, the three-point seat support 22 can adjust the height of the surface of the first optical surface plate 23 in the Z direction and the inclination relative to the horizontal plane.
- the position between the main body frame 21 and the three-point seat support portion 22 in the XY plane can be adjusted in the X direction and the Y direction.
- the body frame 21 and the three-point seat support portion 22 are in a fixed state (rigid state).
- the three-point seat support portion 22 has a structure that can be finely moved in the XY directions on the main body frame 21 as necessary.
- the second optical surface plate 25 is provided on the upper side in the vertical direction (Z direction) of the first optical surface plate 23, and is installed on the first optical surface plate 23 via the rotation mechanism 24.
- the surface of the second optical surface plate 25 is parallel to the surface of the first optical surface plate 23.
- On the second optical surface plate 25, a plurality of (five in the present embodiment) drawing modules UW1 to UW5 of the drawing apparatus 11 are installed.
- the rotation mechanism 24 is centered on a predetermined rotation axis I (also referred to as a rotation center line) extending in the Z direction in a state where the surface surfaces of the first optical surface plate 23 and the second optical surface plate 25 are kept parallel.
- the second optical surface plate 25 is precisely rotated slightly with respect to the first optical surface plate 23.
- the rotation axis I extends in the Z direction within the center plane p3 in FIG. 1 and is a predetermined point within the surface of the substrate P (the drawing surface curved along the circumferential surface) wound around the rotary drum DR. (See FIG. 3). Then, the rotation mechanism 24 rotates the second optical surface plate 25 with respect to the first optical surface plate 23, whereby a plurality of drawing modules UW1 to UW5 for the rotation drum DR or the substrate P wound around the rotation drum DR is obtained. The angular position in the entire XY plane can be adjusted precisely.
- the rotating mechanism 24 has an inner diameter that surrounds the most rotating drum DR side portion of the drawing modules UW1 to UW5, and is disposed opposite to the upper surface side of the first optical surface plate 23 and the lower surface side of the second optical surface plate 25, respectively. And a bearing ball (roller) provided between the ring-shaped pedestal so as to be able to roll.
- the light source device CNT shown in FIGS. 1, 4 and 5 will be described.
- the light source device CNT is installed on the main body frame 21 of the device frame 13.
- the laser beam for the drawing beam LB emitted from the light source device CNT is light in a predetermined wavelength range suitable for exposure of the photosensitive functional layer on the substrate P, and is set in an ultraviolet region having a strong photoactive effect.
- a laser light source such as a laser beam that oscillates continuously at a frequency of about 50 to 100 MHz with a YAG third harmonic laser beam (wavelength 355 nm) can be used.
- An excimer laser using a gas such as KrF, ArF, or XeCL as a laser medium is typically known as a high-power laser light source in the ultraviolet region.
- a solid light source such as a laser diode or a light emitting diode (LED) having an oscillation peak in the ultraviolet region with a wavelength of 450 nm or less.
- a solid light source that emits long wavelength light using a fiber amplifier and a nonlinear optical element is used. It is assumed that a laser light source that converts (pulsed light in the infrared region) into ultraviolet pulsed light having a wavelength of 355 nm (emission time is about several picoseconds) is used.
- the drawing beam LB emitted from such a light source device CNT is supplied to five drawing modules UW1 to UW5 via a beam distribution system including a large number of polarizing beam splitters, mirrors, and the like. Led to each of.
- the drawing beam LB is preferably in a polarization state in which almost all of the drawing beam LB is reflected or almost completely transmitted by the polarizing beam splitter in order to suppress energy loss caused by transmission and reflection of the drawing beam LB in the polarizing beam splitter.
- the drawing apparatus 11 is a so-called multi-beam type (also called multi-head type) drawing apparatus 11 using a plurality of drawing modules (also called drawing heads) UW1 to UW5.
- the drawing apparatus 11 branches the drawing beam LB emitted from the light source device CNT into a plurality of pieces, and a plurality of spot lights (for example, five in the first embodiment) on the substrate P are split by the plurality of drawn drawing beams LB.
- a plurality of drawing lines LL1 to LL5 are respectively scanned along the drawing lines LL1 to LL5.
- the drawing apparatus 11 stitches the patterns drawn on the substrate P by each of the plurality of drawing lines LL1 to LL5 in the width direction of the substrate P.
- a plurality of drawing lines LL1 to LL5 formed on the substrate P by scanning a plurality of drawing beams LB by the drawing apparatus 11 will be described with reference to FIG.
- the plurality of drawing lines LL1 to LL5 are arranged in two rows in the circumferential direction of the rotary drum DR with the center plane p3 interposed therebetween.
- odd-numbered first drawing lines LL1, third drawing lines LL3, and fifth drawing lines LL5 are arranged on the upstream substrate P in the rotation direction of the rotary drum DR.
- Even-numbered second drawing lines LL2 and fourth drawing lines LL4 are arranged on the substrate P on the downstream side in the rotation direction of the rotary drum DR.
- Each drawing line LL1 to LL5 is formed along the width direction (Y direction) of the substrate P, that is, along the rotation center line AX2 of the rotating drum DR, and is shorter than the length of the substrate P in the width direction. More precisely, each of the drawing lines LL1 to LL5 is such that when the substrate P is transported at the reference speed by the substrate transport mechanism 12, the pattern splicing error obtained by the plurality of drawing lines LL1 to LL5 is minimized. It is inclined by a predetermined angle with respect to the rotation center line AX2 of the rotary drum DR.
- the odd-numbered first drawing line LL1, third drawing line LL3, and fifth drawing line LL5 are arranged at predetermined intervals in the axial direction of the rotary drum DR. Further, the even-numbered second drawing line LL2 and fourth drawing line LL4 are arranged at a predetermined interval in the axial direction of the rotary drum DR. At this time, the second drawing line LL2 is arranged between the first drawing line LL1 and the third drawing line LL3 in the axial direction. Similarly, the third drawing line LL3 is disposed between the second drawing line LL2 and the fourth drawing line LL4 in the axial direction. The fourth drawing line LL4 is arranged between the third drawing line LL3 and the fifth drawing line LL5 in the axial direction. The first to fifth drawing lines LL1 to LL5 are arranged so as to cover the entire width in the Y direction of the exposure region A7 drawn on the substrate P.
- the scanning direction (main scanning direction) of the drawing beam LB scanned along the odd-numbered first drawing line LL1, third drawing line LL3, and fifth drawing line LL5 is a one-dimensional direction and is the same direction. It has become.
- the scanning direction of the drawing beam LB scanned along the even-numbered second drawing line LL2 and fourth drawing line LL4 is a one-dimensional direction and is the same direction.
- the scanning direction of the drawing beam LB scanned along the odd-numbered drawing lines LL1, LL3, LL5 and the scanning direction of the drawing beam LB scanned along the even-numbered drawing lines LL2, LL4 are: It is the same direction.
- the scanning end point is adjacent (matches or partially overlaps in the Y direction), and similarly, the drawing end positions of the odd-numbered drawing lines LL1 and LL3 and the drawing start positions of the even-numbered drawing lines LL2 and LL4 Are adjacent (match or partially overlap in the Y direction).
- the drawing apparatus 11 includes a plurality of drawing modules UW1 to UW5, a branching optical system (or also referred to as a beam distribution system) SL that branches the drawing beam LB from the light source device CNT, and calibration detection for performing calibration.
- System 31 a branching optical system (or also referred to as a beam distribution system) SL that branches the drawing beam LB from the light source device CNT, and calibration detection for performing calibration.
- the branching optical system SL branches the drawing beam LB emitted from the light source device CNT into a plurality of parts, and guides the plurality of branched drawing beams LB toward the plurality of drawing modules UW1 to UW5.
- the branch optical system SL has a first optical system 41 that branches the drawing beam LB emitted from the light source device CNT into two, and a second optical that is irradiated with one drawing beam LB branched by the first optical system 41. And a third optical system 43 that is irradiated with the other drawing beam LB branched by the first optical system 41.
- the branching optical system SL includes an XY overall herbing adjustment mechanism 44 that two-dimensionally shifts the unbranched beam LB in the first optical system 41 in a plane perpendicular to the beam axis, and a third optical system 43. And an XY one-side herbing adjustment mechanism 45 that two-dimensionally shifts the beam LB in a plane perpendicular to the beam axis.
- a part on the light source device CNT side is installed on the main body frame 21, while the other part on the drawing modules UW1 to UW5 side is installed on the second optical surface plate 25.
- the first optical system 41 includes a half-wave plate 51, a polarizing beam splitter 52, a beam diffuser 53, a first reflection mirror 54, a first relay lens 55, a second relay lens 56, and a second reflection.
- a mirror 57, a third reflection mirror 58, a fourth reflection mirror 59, and a first beam splitter 60 are included.
- the drawing beam LB emitted from the light source device CNT in the + X direction is applied to the half-wave plate 51.
- the half-wave plate 51 is rotatable in the irradiation surface of the drawing beam LB.
- the polarization direction of the drawing beam LB irradiated on the half-wave plate 51 is a predetermined polarization direction corresponding to the rotation amount of the half-wave plate 51.
- the drawing beam LB that has passed through the half-wave plate 51 is applied to the polarization beam splitter 52.
- the polarization beam splitter 52 transmits the drawing beam LB having a predetermined polarization direction, and reflects the drawing beam LB other than the predetermined polarization direction in the + Y direction.
- the drawing beam LB reflected by the polarization beam splitter 52 passes through the half-wave plate 51, the cooperation of the half-wave plate 51 and the polarization beam splitter 52 causes the drawing beam LB to be reflected.
- the beam intensity is adjusted. That is, the beam intensity of the drawing beam LB reflected by the polarization beam splitter 52 can be adjusted by rotating the half-wave plate 51 and changing the polarization direction of the drawing beam LB.
- the drawing beam LB that has passed through the polarization beam splitter 52 is absorbed by the beam diffuser 53 and suppresses leakage of the drawing beam LB irradiated to the beam diffuser 53 to the outside.
- the drawing beam LB reflected in the + Y direction by the polarization beam splitter 52 is applied to the first reflection mirror 54.
- the drawing beam LB irradiated on the first reflecting mirror 54 is reflected in the + X direction by the first reflecting mirror 54, and is irradiated on the second reflecting mirror 57 via the first relay lens 55 and the second relay lens 56. .
- the drawing beam LB irradiated on the second reflecting mirror 57 is reflected in the ⁇ Y direction by the second reflecting mirror 57 and is irradiated on the third reflecting mirror 58.
- the drawing beam LB irradiated on the third reflecting mirror 58 is reflected in the ⁇ Z direction by the third reflecting mirror 58 and then irradiated on the fourth reflecting mirror 59.
- the drawing beam LB irradiated on the fourth reflecting mirror 59 is reflected in the + Y direction by the fourth reflecting mirror 59 and irradiated on the first beam splitter 60.
- a part of the drawing beam LB irradiated to the first beam splitter 60 is reflected in the ⁇ X direction and irradiated to the second optical system 42, while the other part is transmitted and transmitted to the third optical system 43. Is irradiated.
- the third reflection mirror 58 and the fourth reflection mirror 59 are provided on the rotation axis I of the rotation mechanism 24 at a predetermined interval.
- the configuration up to the light source device CNT including the third reflection mirror 58 (portion surrounded by a two-dot chain line on the upper side in the Z direction in FIG. 4) is installed on the main body frame 21 side and includes the fourth reflection mirror 59.
- the configuration of the plurality of drawing modules UW1 to UW5 (the portion surrounded by the two-dot chain line on the lower side in the Z direction in FIG. 4) is installed on the second optical surface plate 25 side.
- the drawing beam LB emitted from the light source device CNT installed on the main body frame 21 side is the second optical surface plate. It is preferably guided to each of a plurality of drawing modules UW1 to UW5 installed on the surface plate 25 side.
- the second optical system 42 branches and guides one drawing beam LB branched by the first optical system 41 toward odd-numbered drawing modules UW1, UW3, UW5 described later.
- the second optical system 42 includes a fifth reflection mirror 61, a second beam splitter 62, a third beam splitter 63, and a sixth reflection mirror 64.
- the drawing beam LB reflected in the ⁇ X direction by the first beam splitter 60 of the first optical system 41 is applied to the fifth reflecting mirror 61.
- the drawing beam LB irradiated on the fifth reflecting mirror 61 is reflected in the ⁇ Y direction by the fifth reflecting mirror 61 and is irradiated on the second beam splitter 62.
- a part of the drawing beam LB irradiated to the second beam splitter 62 is reflected and irradiated to one odd-numbered drawing module UW5 (see FIGS. 5 and 6).
- the other part of the drawing beam LB irradiated on the second beam splitter 62 is transmitted and irradiated on the third beam splitter 63.
- a part of the drawing beam LB irradiated to the third beam splitter 63 is reflected and irradiated to one odd-numbered drawing module UW3 (see FIGS. 5 and 6).
- the other part of the drawing beam LB irradiated to the third beam splitter 63 is transmitted and irradiated to the sixth reflecting mirror 64.
- the drawing beam LB irradiated to the sixth reflecting mirror 64 is reflected by the sixth reflecting mirror 64 and irradiated to an odd-numbered drawing module UW1 (see FIGS. 5 and 6).
- the drawing beam LB irradiated to the odd-numbered drawing modules UW1, UW3, UW5 is slightly inclined with respect to the ⁇ Z direction.
- the third optical system 43 branches the other drawing beam LB branched by the first optical system 41 toward even-numbered drawing modules UW2 and UW4 described later.
- the third optical system 43 includes a seventh reflection mirror 71, an eighth reflection mirror 72, a fourth beam splitter 73, and a ninth reflection mirror 74.
- the drawing beam LB transmitted in the Y direction by the first beam splitter 60 of the first optical system 41 is applied to the seventh reflection mirror 71.
- the drawing beam LB irradiated to the seventh reflection mirror 71 is reflected in the X direction by the seventh reflection mirror 71 and irradiated to the eighth reflection mirror 72.
- the drawing beam LB irradiated on the eighth reflecting mirror 72 is reflected in the ⁇ Y direction by the eighth reflecting mirror 72 and irradiated on the fourth beam splitter 73.
- a part of the drawing beam LB irradiated to the fourth beam splitter 73 is reflected and irradiated to one even-numbered drawing module UW4 (see FIGS. 5 and 6).
- the other part of the drawing beam LB irradiated to the fourth beam splitter 73 is transmitted and irradiated to the ninth reflecting mirror 74.
- the drawing beam LB irradiated to the ninth reflecting mirror 74 is reflected by the ninth reflecting mirror 74 and irradiated to one even-numbered drawing module UW2.
- the drawing beam LB irradiated to the even-numbered drawing modules UW2 and UW4 is slightly inclined with respect to the ⁇ Z direction.
- the drawing beam LB from the light source device CNT is branched into a plurality of parts toward the plurality of drawing modules UW1 to UW5.
- the first beam splitter 60, the second beam splitter 62, the third beam splitter 63, and the fourth beam splitter 73 have the same beam intensity of the drawing beam LB irradiated to the plurality of drawing modules UW1 to UW5.
- the reflectance is set to an appropriate reflectance according to the number of branches of the drawing beam LB.
- the XY overall herbing adjustment mechanism 44 is disposed between the second relay lens 56 and the second reflection mirror 57 as shown in FIG.
- the XY overall herbing adjustment mechanism 44 finely shifts the beam LB incident on the first beam splitter 60 two-dimensionally in a plane perpendicular to the beam axis, and particularly adjusts the position of the beam passing through the second optical system 42.
- the XY overall herbing adjusting mechanism 44 includes a transparent parallel flat glass that can be tilted in the XZ plane of FIG. 6 and a transparent parallel flat glass that can be tilted in the YZ plane of FIG. By adjusting the respective tilt amounts of the two parallel flat glass plates, the beam LB incident on the first beam splitter 60 can be slightly shifted in the X direction or the Z direction in FIG.
- the XY one-side herbing adjustment mechanism 45 is disposed between the seventh reflection mirror 71 and the eighth reflection mirror 72.
- the XY one-side herbing adjustment mechanism 45 finely shifts the beam LB transmitted through the first beam splitter 60 two-dimensionally in a plane perpendicular to the beam axis, and particularly adjusts the position of the beam passing through the third optical system 43.
- the XY one-side herbing adjustment mechanism 45 is a transparent parallel flat glass that can be inclined in the XZ plane of FIG. 6 and a transparent parallel flat glass that can be inclined in the YZ plane of FIG. It consists of.
- the position of the drawing beam LB incident on the even-numbered drawing modules UW2 and UW4 can be slightly shifted by adjusting the inclination amounts of the two parallel flat glass plates.
- the position shift of the beam LB by the XY overall herbing adjustment mechanism 44 also shifts the position of the beam that passes through the first beam splitter 60 and enters the third optical system 43.
- the position adjustment of the beams incident on the even-numbered drawing modules UW2 and UW4 is performed by both the XY overall herbing adjustment mechanism 44 and the XY one-side herbing adjustment mechanism 45.
- the plurality of drawing modules UW1 to UW5 are provided according to the plurality of drawing lines LL1 to LL5.
- a plurality of drawing beams LB branched by the branching optical system SL are respectively incident on the plurality of drawing modules UW1 to UW5.
- Each drawing module UW1 to UW5 condenses a plurality of drawing beams LB into spot lights on the respective drawing lines LL1 to LL5, and scans the spot lights. That is, the first drawing module UW1 guides the drawing beam LB to the first drawing line LL1, and similarly, the second to fifth drawing modules UW2 to UW5 send the drawing beam LB to the second to fifth drawing lines LL2 to LL5. Lead to.
- the plurality of drawing modules UW1 to UW5 are arranged in two rows in the circumferential direction of the rotary drum DR with the center plane p3 interposed therebetween.
- the plurality of drawing modules UW1 to UW5 have the first drawing on the side where the first, third, and fifth drawing lines LL1, LL3, and LL5 are arranged (the ⁇ X direction side in FIG. 5) across the center plane p3.
- a module UW1, a third drawing module UW3, and a fifth drawing module UW5 are arranged.
- the first drawing module UW1, the third drawing module UW3, and the fifth drawing module UW5 are arranged at a predetermined interval in the Y direction.
- the plurality of drawing modules UW1 to UW5 have the second drawing module UW2 and the second drawing module UW2 on the side where the second and fourth drawing lines LL2 and LL4 are arranged (the + X direction side in FIG. 5) across the center plane p3.
- Four drawing modules UW4 are arranged.
- the second drawing module UW2 and the fourth drawing module UW4 are arranged at a predetermined interval in the Y direction.
- the second drawing module UW2 is located between the first drawing module UW1 and the third drawing module UW3 in the Y direction.
- the third drawing module UW3 is located between the second drawing module UW2 and the fourth drawing module UW4 in the Y direction.
- the fourth drawing module UW4 is located between the third drawing module UW3 and the fifth drawing module UW5 in the Y direction. As shown in FIG. 4, the first drawing module UW1, the third drawing module UW3, and the fifth drawing module UW5, and the second drawing module UW2 and the fourth drawing module UW4 have a center plane p3 as viewed from the Y direction. It is arranged symmetrically in the center.
- drawing modules UW1 to UW5 will be described with reference to FIG. Since the drawing modules UW1 to UW5 have the same configuration, the first drawing module UW1 (hereinafter simply referred to as the drawing module UW1) will be described as an example.
- the drawing module UW1 illustrated in FIG. 4 includes an optical deflector 81, a polarization beam splitter PBS, a quarter-wave plate 82, and a scanning beam LB along the drawing line LL1 (first drawing line LL1).
- a scanner 83, a bending mirror 84, an f- ⁇ lens system 85, and a Y magnification correcting optical member 86 are provided.
- a calibration detection system 31 is provided adjacent to the deflection beam splitter PBS.
- the optical deflector 81 is composed of, for example, an acousto-optic modulation element (AOM), and projects / non-projects the drawing beam LB onto the substrate P by switching generation / non-generation of the diffracted light of the incident beam at high speed. Switch fast. Thereby, the intensity of the spot light irradiated on the substrate P is modulated based on the pattern drawing information (serial bit string signal) applied to the modulator (AOM) 81. Specifically, the drawing beam LB from the branch optical system SL is incident on the light deflector 81 through the relay lens 91 with a slight inclination with respect to the ⁇ Z direction.
- AOM acousto-optic modulation element
- the drawing beam LB travels straight in an inclined state and is shielded from light by a light shielding plate 92 provided at the end after passing through the optical deflector 81.
- the diffracted drawing beam LB is deflected in the ⁇ Z direction, passes through the optical deflector 81, and enters the polarization beam splitter PBS provided on the Z direction of the optical deflector 81. To do. Therefore, while the optical deflector 81 is ON, the spot light of the drawing beam LB continues to be projected onto the substrate P, and while the optical deflector 81 is OFF, the spot light of the drawing beam LB is projected onto the substrate P. Interrupted.
- the deflection beam splitter PBS reflects the drawing beam LB irradiated from the optical deflector 81 via the relay lens 93.
- the deflecting beam splitter PBS cooperates with the quarter-wave plate 82 provided between the deflecting beam splitter PBS and the scanner 83 to draw the drawing beam LB reflected on the surface of the substrate P or the rotating drum DR. Is transparent. That is, the drawing beam LB from the optical deflector 81 toward the polarization beam splitter PBS is a laser beam that is S-polarized linearly polarized light and is reflected by the polarization beam splitter PBS.
- the drawing beam LB reflected by the polarization beam splitter PBS passes through the quarter-wave plate 82 and reaches the substrate P as circularly polarized light.
- a part of the reflected light of the drawing beam LB that is reflected by the surface of the substrate P or the rotating drum DR and returns via the f- ⁇ lens system 85 or the scanner 83 passes through the quarter-wave plate 82 again.
- the quarter-wave plate 82 again.
- the reflected light of the drawing beam LB irradiated from the substrate P to the polarization beam splitter PBS passes through the polarization beam splitter PBS.
- the reflected light of the drawing beam LB that has passed through the polarization beam splitter PBS is irradiated to the calibration detection system 31 via the relay lens 94.
- the drawing beam LB reflected by the deflecting beam splitter PBS via the relay lens system 93 passes through the quarter wavelength plate 82 and enters the scanner 83.
- the scanner 83 includes a reflection mirror 96, a rotating polygon mirror (rotating polygonal mirror) 97, and an origin detector 98.
- the drawing beam LB that has passed through the quarter-wave plate 82 is applied to the reflection mirror 96 via the relay lens 95.
- the drawing beam LB reflected by the reflecting mirror 96 is applied to the rotating polygon mirror 97.
- the rotating polygon mirror 97 includes a rotating shaft 97a extending in the Z direction and a plurality of polygon surfaces (reflection planes) 97b formed around the rotating shaft 97a.
- the rotating polygon mirror 97 rotates in a predetermined rotation direction around the rotation axis 97a, thereby continuously changing the reflection angle of the drawing beam LB irradiated to the polygon surface 97b, and thereby the reflected drawing beam LB. Are scanned along the drawing line LL1 on the substrate P.
- the drawing beam LB reflected by the rotating polygon mirror 97 is applied to the bending mirror 84.
- the origin detector 98 detects the origin (predetermined scanning start point) of the drawing beam LB that scans along the drawing line LL1 of the substrate P.
- the origin detector 98 is disposed on the opposite side of the reflection mirror 96 with the drawing beam LB reflected by each polygonal surface 97b interposed therebetween.
- the origin detector 98 detects the drawing beam LB before being irradiated onto the f- ⁇ lens system 85. That is, the origin detector 98 detects the angular position of the polygonal surface 97b immediately before the spot light is applied to the drawing start position of the drawing line LL1 on the substrate P.
- the drawing beam LB irradiated to the bending mirror 84 from the scanner 83 is reflected by the bending mirror 84 and irradiated to the f- ⁇ lens system 85.
- the f- ⁇ lens system 85 includes a telecentric f- ⁇ lens, and projects the drawing beam LB reflected from the rotating polygon mirror 97 via the bending mirror 84 perpendicularly to the drawing surface of the substrate P.
- the plurality of scanners 83 in the plurality of drawing modules UW1 to UW5 have a symmetrical configuration with the center plane p3 interposed therebetween.
- three scanners 83 corresponding to the drawing modules UW1, UW3, and UW5 are arranged on the upstream side in the rotation direction of the rotary drum DR (the ⁇ X direction side in FIG. 7), and the drawing modules UW2,
- Two scanners 83 corresponding to UW4 are arranged on the downstream side in the rotation direction of the rotary drum DR (the + X direction side in FIG. 7).
- the three upstream scanners 83 and the two downstream scanners 83 are arranged to face each other across the center plane p3.
- each scanner 83 arranged on the upstream side and each scanner 83 arranged on the downstream side are symmetric with respect to the center plane p3.
- the three upstream rotating polygon mirrors 97 scan the drawing beam LB while rotating counterclockwise (counterclockwise) in the XY plane, and are thereby projected onto the odd numbered drawing lines LL1, LL3, and LL5.
- Each spot light is scanned in a predetermined scanning direction (for example, + Y direction in FIG. 7) from the drawing start position to the drawing end position.
- the two rotating polygon mirrors 97 on the downstream side scan the drawing beam LB while rotating clockwise (clockwise) in the XY plane, and thereby each spot projected onto the even-numbered drawing lines LL2 and LL4.
- Light is scanned from the drawing start position to the drawing end position in the same scanning direction (+ Y direction) as the three upstream drawing lines LL1, LL3, and LL5.
- the axis of the drawing beam LB reaching the substrate P from the odd-numbered drawing modules UW1, UW3, UW5 is in a direction that coincides with the installation direction line Le1. That is, the installation orientation line Le1 is a line connecting the odd-numbered drawing lines LL1, LL3, LL5 and the rotation center line AX2 in the XZ plane.
- the axis of the drawing beam LB reaching the substrate P from the even-numbered drawing modules UW2 and UW4 is in a direction that coincides with the installation orientation line Le2. That is, the installation orientation line Le2 is a line connecting the even-numbered drawing lines LL2 and LL4 and the rotation center line AX2 in the XZ plane.
- the Y magnification correcting optical member 86 is a combination of a cylindrical lens having a positive refractive power in the Y direction and a cylindrical lens having a negative refractive power in the Y direction, and includes an f- ⁇ lens system 85 and a substrate P. It is arranged between. Formed by each of the drawing modules UW1 to UW5 by finely moving at least one of the plurality of cylindrical lenses constituting the optical member 86 for correcting the Y magnification in the direction of the optical axis (axis of the drawing beam LB) of the f- ⁇ lens system 85.
- the drawn lines LL1 to LL5 can be enlarged or reduced by a small amount in an isotropic manner in the Y direction.
- the drawing device 11 configured as described above draws a predetermined pattern on the substrate P by controlling each part by the control device 16. That is, the control device 16 performs light emission based on CAD (Computer Aided Design) information that is information on a pattern to be drawn on the substrate P during the period in which the drawing beam LB projected on the substrate P is scanned in the scanning direction.
- CAD Computer Aided Design
- the drawing beam LB is deflected by performing On / Off modulation of the deflector 81, and a pattern is drawn on the photosensitive layer of the substrate P.
- control device 16 synchronizes the scanning direction (scanning start timing) of the spot light of the drawing beam LB that scans along the drawing line LL1 and the movement in the transport direction of the substrate P by the rotation of the rotating drum DR. Then, a predetermined pattern is drawn on a portion corresponding to the drawing line LL1 in the exposure area A7.
- the effective size (spot diameter) of the spot light on the substrate P of the drawing beam LB projected from each of the drawing modules UW1 to UW5 is D ( ⁇ m), and the spot light is scanned along the drawing lines LL1 to LL5.
- the light source device CNT has a light emission repetition period T (second) of the laser light source that emits pulsed light in a relationship of T ⁇ D / Vp.
- the effective size (diameter) of the spot light is a half value (full width at half maximum) with respect to the peak value on the intensity distribution in the main scanning direction of the spot light, or 1 / e 2 with respect to the peak value. The width becomes the strength of.
- the alignment microscopes AM1 and AM2 detect an alignment mark formed in advance on the substrate P or a reference mark or reference pattern formed on the rotating drum DR within a predetermined observation area.
- the alignment mark of the substrate P and the reference mark or reference pattern of the rotating drum DR may be simply referred to as a mark.
- the alignment microscopes AM1 and AM2 are used to align (align) the substrate P and a predetermined pattern drawn on the substrate P, and to calibrate the rotary drum DR and the drawing device 11.
- the alignment microscopes AM1 and AM2 are provided upstream of the drawing lines LL1 to LL5 formed by the drawing device 11 in the rotation direction of the rotary drum DR. Further, the alignment microscope AM1 is arranged on the upstream side in the rotation direction of the rotary drum DR as compared with the alignment microscope AM2.
- the alignment microscopes AM1 and AM2 project the illumination light onto the substrate P or the rotating drum DR, and the objective lens system GA as a detection probe that receives the light generated by the mark, and the image of the mark received through the objective lens system GA.
- An imaging system GD or the like that captures (bright-field image, dark-field image, fluorescent image, etc.) with a two-dimensional CCD, CMOS, or the like.
- the illumination light for alignment is light in a wavelength region that has little sensitivity to the photosensitive layer on the substrate P, for example, light having a wavelength of about 500 to 800 nm.
- Alignment microscopes AM1 are provided in a plurality (for example, three) in a line in the Y direction (width direction of the substrate P). Similarly, a plurality of (for example, three) alignment microscopes AM2 are provided in a line in the Y direction (the width direction of the substrate P). That is, a total of six alignment microscopes AM1 and AM2 are provided.
- FIG. 3 shows the arrangement of the objective lens systems GA1 to GA3 of the three alignment microscopes AM1 among the objective lens systems GA of the six alignment microscopes AM1 and AM2 for easy understanding.
- the observation regions (detection positions) Vw1 to Vw3 on the substrate P (or the outer peripheral surface of the rotating drum DR) by the objective lens systems GA1 to GA3 of the three alignment microscopes AM1 are the rotation center line AX2 and They are arranged at predetermined intervals in the parallel Y direction.
- the optical axes La1 to La3 of the objective lens systems GA1 to GA3 passing through the centers of the observation regions Vw1 to Vw3 are all parallel to the XZ plane.
- observation regions Vw4 to Vw6 on the substrate P (or the outer peripheral surface of the rotary drum DR) by the objective lens systems GA of the three alignment microscopes AM2 are Y parallel to the rotation center line AX2, as shown in FIG. Arranged at predetermined intervals in the direction.
- the optical axes La4 to La6 of each objective lens system GA passing through the centers of the observation regions Vw4 to Vw6 are all parallel to the XZ plane.
- the observation areas Vw1 to Vw3 and the observation areas Vw4 to Vw6 are arranged at a predetermined interval in the rotation direction of the rotary drum DR.
- This alignment microscope AM1 The observation area Vw1 to Vw6 of the mark by AM2 is On the substrate P or the rotating drum DR, For example, A range of about 200 ⁇ m square is set.
- Optical axis La1 to La3 of the alignment microscope AM1 That is, The optical axes La1 to La3 of the objective lens system GA are It is set in the same direction as the installation direction line Le3 extending from the rotation center line AX2 in the radial direction of the rotary drum DR. That means The installation direction line Le3 is When viewed in the XZ plane of FIG.
- Observation region Vw1 to Vw3 of alignment microscope AM1 This is a line connecting the rotation center line AX2.
- Optical axis La4 to La6 of the alignment microscope AM2 That is, The optical axes La4 to La6 of the objective lens system GA are It is set in the same direction as the installation direction line Le4 extending from the rotation center line AX2 in the radial direction of the rotary drum DR. That means The installation direction line Le4 is When viewed in the XZ plane of FIG. Observation region Vw4 to Vw6 of alignment microscope AM2, This is a line connecting the rotation center line AX2.
- the alignment microscope AM1 Since it is arranged upstream of the rotation direction of the rotary drum DR as compared with the alignment microscope AM2, The angle formed by the center plane p3 and the installation orientation line Le3 is It is larger than the angle formed by the center plane p3 and the installation orientation line Le4.
- an exposure area A7 drawn by each of the five drawing lines LL1 to LL5 is arranged at a predetermined interval in the X direction.
- a plurality of alignment marks Ks1 to Ks3 (hereinafter abbreviated as marks) for alignment are formed in a cross shape, for example.
- Each drawing module specifies the position on the substrate P where the pattern should be drawn based on the detection result of the alignment marks Ks1 to Ks2 by the alignment microscopes AM1 and AM2, and adjusts (corrects) the main scanning position by the spot light.
- the alignment is not limited to this. For example, alignment may be performed by detecting a partial shape of a circuit pattern or the like formed on the substrate P by the alignment microscopes AM1 and AM2.
- the mark Ks1 is provided in the peripheral area on the ⁇ Y side of the exposure area A7 at a constant interval in the X direction, and the mark Ks3 is fixed in the peripheral area on the + Y side of the exposure area A7 in the X direction. Provided at intervals. Further, the mark Ks2 is provided at the center in the Y direction in a blank area between two exposure areas A7 adjacent in the X direction.
- the marks Ks1 are sequentially captured while the substrate P is being sent in the observation region Vw1 of the objective lens system GA1 of the alignment microscope AM1 and in the observation region Vw4 of the objective lens system GA of the alignment microscope AM2. Formed. Further, the mark Ks3 is sequentially captured while the substrate P is being sent in the observation region Vw3 of the objective lens system GA3 of the alignment microscope AM1 and in the observation region Vw6 of the objective lens system GA of the alignment microscope AM2. Formed. Further, the marks Ks2 are sequentially captured while the substrate P is being sent in the observation region Vw2 of the objective lens system GA2 of the alignment microscope AM1 and in the observation region Vw5 of the objective lens system GA of the alignment microscope AM2. It is formed so that.
- the alignment microscopes AM1 and AM2 on both sides in the Y direction of the rotating drum DR constantly observe or detect the marks Ks1 and Ks3 formed on both sides in the width direction of the substrate P. be able to.
- the alignment microscope AM1 and AM2 at the center in the Y direction of the rotary drum DR has a margin in the longitudinal direction between the exposure areas A7 drawn on the substrate P. The formed mark Ks2 can always be observed or detected.
- the exposure apparatus EX uses a so-called multi-beam type drawing apparatus 11
- a plurality of patterns drawn on the substrate P are drawn by the drawing lines LL1 to LL5 of the plurality of drawing modules UW1 to UW5.
- Calibration in order to keep the joining accuracy by the plurality of drawing modules UW1 to UW5 within an allowable range is necessary.
- the relative positional relationship of the observation areas Vw1 to Vw6 of the alignment microscopes AM1 and AM2 with respect to the respective drawing lines LL1 to LL5 of the plurality of drawing modules UW1 to UW5 needs to be precisely determined by the baseline management. Calibration is also required for the baseline management.
- the exposure apparatus EX uses a rotary drum DR provided with a reference mark or a reference pattern on the outer peripheral surface.
- the rotary drum DR has scale portions GPa and GPb that constitute a part of a rotational position detection mechanism 14 described later on both ends of the outer peripheral surface thereof.
- the rotary drum DR is provided with engraved restriction bands CLa and CLb having a narrow width by concave grooves or convex rims on the inner sides of the scale parts GPa and GPb.
- the width in the Y direction of the substrate P is set to be smaller than the interval in the Y direction between the two regulation bands CLa and CLb, and the substrate P is sandwiched between the regulation bands CLa and CLb on the outer peripheral surface of the rotary drum DR. It is supported in close contact with the inner region.
- the rotating drum DR is inclined on the outer circumferential surface sandwiched between the regulation bands CLa and CLb by a plurality of line patterns RL1 inclined at +45 degrees with respect to the rotation center line AX2, and at ⁇ 45 degrees with respect to the rotation center line AX2.
- the line width LW of the line patterns RL1 and RL2 is set to about several ⁇ m to 20 ⁇ m
- the pitches (periods) Pf1 and Pf2 are set to about several tens of ⁇ m to several hundreds of ⁇ m.
- the reference pattern RMP is an oblique pattern (an oblique lattice pattern) that is uniform over the entire surface so that the frictional force, the tension of the substrate P, and the like do not change at the portion where the substrate P and the outer peripheral surface of the rotary drum DR come into contact.
- the line patterns RL1 and RL2 are not necessarily inclined at 45 degrees, and may be a vertical and horizontal mesh pattern in which the line pattern RL1 is parallel to the Y axis and the line pattern RL2 is parallel to the X axis.
- the line patterns RL1 and RL2 do not need to intersect at 90 degrees, and the rectangular area surrounded by the two adjacent line patterns RL1 and the two adjacent line patterns RL2 is other than a square (or a rectangle).
- the line patterns RL1 and RL2 may be crossed at such an angle as to form a rhombus.
- the rotational position detection mechanism 14 optically detects the rotational position of the rotary drum DR, and an encoder system using, for example, a rotary encoder is applied.
- the rotational position detection mechanism 14 includes scale portions GPa and GPb provided at both ends of the rotary drum DR, and a plurality of encoder heads EN1, EN2, EN3, and EN4 that face the scale portions GPa and GPb, respectively. 4 and 8, only four encoder heads EN1, EN2, EN3, and EN4 that face the scale part GPa are shown, but similar encoder heads EN1, EN2, EN3, and EN4 also face the scale part GPb. Arranged.
- the scale parts GPa and GPb are respectively formed in an annular shape over the entire circumferential direction of the outer peripheral surface of the rotary drum DR.
- the scale portions GPa and GPb are diffraction gratings in which concave or convex lattice lines are formed at a constant pitch (for example, 20 ⁇ m) in the circumferential direction of the outer peripheral surface of the rotary drum DR, and are configured as incremental scales.
- the grid lines (scales) of the scale parts GPa and GPb and the reference pattern RMP shown in FIG. 9 are simultaneously formed by an apparatus (pattern engraving machine or the like) that processes the surface of the rotary drum DR.
- an origin mark is provided at one place in the circumferential direction of the scale portions GPa and GPb, and each of the encoder heads EN1, EN2, EN3, and EN4 detects the origin mark and outputs an origin signal. Is provided. Therefore, the original mark has a unique positional relationship (known angular positional relationship) with respect to the reference pattern RMP and the circumferential direction.
- the substrate P is configured to be wound inside the scale portions GPa and GPb at both ends of the rotary drum DR, that is, inside the regulation bands CLa and CLb.
- the outer peripheral surfaces of the scale portions GPa and GPb and the outer peripheral surface of the portion of the substrate P wound around the rotary drum DR are on the same plane (same radius from the rotation center line AX2).
- the outer peripheral surfaces of the scale parts GPa and GPb may be made higher by the thickness of the substrate P in the radial direction than the outer peripheral surface for winding the substrate of the rotary drum DR.
- the outer peripheral surfaces of the scale portions GPa and GPb formed on the rotary drum DR can be set to have substantially the same radius as the outer peripheral surface of the substrate P. Therefore, the encoder heads EN1, EN2, EN3, and EN4 can detect the scale portions GPa and GPb at the same radial position as the drawing surface on the substrate P wound around the rotary drum DR, and the measurement position and the processing position can be detected. Abbe errors caused by different radial directions of the rotating system can be reduced.
- the scale disk in which the scale part GPa (GPb) is engraved on the outer peripheral surface of a disk-like member having a diameter substantially the same as the diameter of the rotary drum DR. May be coaxially attached to the shaft portion Sf2 of the rotary drum DR.
- Encoder heads EN1, EN2, EN3, and EN4 are respectively disposed around the scale portions GPa and GPb as viewed from the rotation center line AX2, and are located at different positions in the circumferential direction of the rotary drum DR.
- the encoder heads EN1, EN2, EN3, and EN4 are connected to the control device 16.
- the encoder heads EN1, EN2, EN3, and EN4 project measurement light beams toward the scale portions GPa and GPb, and photoelectrically detect the reflected light beams (diffracted light), thereby causing the scale portions GPa and GPb in the circumferential direction.
- a detection signal (for example, a two-phase signal having a phase difference of 90 degrees) corresponding to the position change is output to the control device 16.
- the control device 16 interpolates and digitally processes the detection signal with a counter circuit (not shown), thereby changing the angular change of the rotary drum DR, that is, the change in the circumferential position of the outer peripheral surface with submicron resolution. It can be measured. At this time, the control device 16 can also measure the conveyance speed of the substrate P in the rotary drum DR from the change in the angle of the rotary drum DR.
- the encoder head EN1 is disposed on the installation direction line Le1.
- the installation azimuth line Le1 is a line connecting the projection area (reading position) of the measurement light beam onto the scale part GPa (GPb) by the encoder head EN1 and the rotation center line AX2 in the XZ plane.
- the installation direction line Le1 is a line connecting the drawing lines LL1, LL3, LL5 and the rotation center line AX2 in the XZ plane.
- the line connecting the reading position of the encoder head EN1 and the rotation center line AX2 and the line connecting the drawing lines LL1, LL3, LL5 and the rotation center line AX2 are the same azimuth line (same as viewed from the center axis AX2). Direction).
- the encoder head EN2 is disposed on the installation orientation line Le2.
- the installation orientation line Le2 is a line connecting the projection area (reading position) of the measurement light beam on the scale part GPa (GPb) by the encoder head EN2 and the rotation center line AX2 in the XZ plane.
- the installation direction line Le2 is a line connecting the drawing lines LL2 and LL4 and the rotation center line AX2 in the XZ plane.
- the line connecting the reading position of the encoder head EN2 and the rotation center line AX2 and the line connecting the drawing lines LL2 and LL4 and the rotation center line AX2 are the same azimuth line (the same azimuth as viewed from the center axis AX2). It has become.
- the encoder head EN3 is arranged on the installation direction line Le3.
- the installation azimuth line Le3 is a line connecting the projection area (reading position) of the measurement light beam onto the scale part GPa (GPb) by the encoder head EN3 and the rotation center line AX2 in the XZ plane.
- the installation orientation line Le3 is a line connecting the observation areas Vw1 to Vw3 of the substrate P by the alignment microscope AM1 and the rotation center line AX2 in the XZ plane.
- the line connecting the reading position of the encoder head EN3 and the rotation center line AX2 and the line connecting the observation regions Vw1 to Vw3 of the alignment microscope AM1 and the rotation center line AX2 are the same azimuth line (viewed from the center axis AX2). In the same direction).
- the measurement area of the encoder head EN3 and the detection areas Vw1 to Vw3 of the alignment microscope AM1 on the scale portions GPa and GPb are in the circumferential direction of the rotary drum DR. Are in the same position.
- the encoder head EN4 is disposed on the installation direction line Le4.
- the installation azimuth line Le4 is a line connecting the projection area (reading position) of the measurement light beam onto the scale part GPa (GPb) by the encoder head EN4 and the rotation center line AX2 in the XZ plane.
- the installation direction line Le4 is a line connecting the observation areas Vw4 to Vw6 of the substrate P by the alignment microscope AM2 and the rotation center line AX2 in the XZ plane.
- the line connecting the reading position of the encoder head EN4 and the rotation center line AX2 and the line connecting the observation areas Vw4 to Vw6 of the alignment microscope AM2 and the rotation center line AX2 are the same azimuth line (viewed from the center axis AX2). In the same direction).
- the measurement area of the encoder head EN4 and the detection areas Vw4 to Vw6 of the alignment microscope AM2 on the scale portions GPa and GPb are in the circumferential direction of the rotary drum DR. Are in the same position.
- installation directions (angle directions in the XZ plane with the rotation center line AX2 as the center) of the encoder heads EN1, EN2, EN3, EN4 are represented by installation direction lines Le1, Le2, Le3, Le4, as shown in FIG.
- a plurality of drawing modules UW1 to UW5 and encoder heads EN1 and EN2 are arranged so that the installation orientation lines Le1 and Le2 are at an angle ⁇ ⁇ ° with respect to the center plane p3.
- the control device 16 detects the rotation angle position of the scale units (rotating drum DR) GPa and GPb detected by the encoder heads EN1 and EN2 and the counter circuit, that is, the movement position and movement of the outer circumferential surface of the rotating drum DR in the circumferential direction. Based on the quantity, the drawing start positions by the odd-numbered and even-numbered drawing modules UW1 to UW5 are controlled. That is, the control device 16 performs On / Off modulation on the optical deflector 81 based on the CAD information of the pattern to be drawn on the substrate P during the period in which the drawing beam LB projected on the substrate P is scanned in the scanning direction. However, by performing the on / off modulation start timing of the CAD information for one scan by the optical deflector 81 based on the detected rotation angle position, the pattern is accurately drawn on the photosensitive layer of the substrate P. be able to.
- control device 16 rotates the scale portions (rotating drums DR) GPa and GPb detected by the encoder heads EN3 and EN4 when the alignment marks Ks1 to Ks3 on the substrate P are detected by the alignment microscopes AM1 and AM2.
- the control device 16 rotates the scale portions (rotary drum DR) GPa and GPb detected by the encoder heads EN3 and EN4 when the reference pattern RMP on the rotary drum DR is detected by the alignment microscopes AM1 and AM2.
- the alignment microscopes AM1 and AM2 can precisely measure the rotational angle position (or circumferential position) of the rotating drum DR at the moment when the reference pattern or mark is sampled in the observation regions Vw1 to Vw6. Then, in the exposure apparatus EX, based on the measurement result, the substrate P and a predetermined pattern drawn on the substrate P are aligned (aligned), or each of the drawing modules UW1 to UW1 of the rotary drum DR and the drawing apparatus 11 is set. The positional relationship with the drawing lines LL1 to LL5 by the UW5 is calibrated.
- the spot light of the drawing beam LB is scanned along the plurality of drawing lines LL1 to LL5 on the substrate P while the substrate P is being carried in the carrying direction.
- the scanning directions of the drawing beams LB scanned along the drawing lines LL1 to LL5 are the same direction, and each of the drawing lines LL1 to LL5 is precisely parallel to the center plane p3 (center axis AX2). Is set to patterns PT1 to PT5 formed on the substrate P by the plurality of drawing lines LL1 to LL5, respectively, as shown in FIG.
- FIG. 10 is a diagram exaggeratingly showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the first embodiment.
- FIG. 10 since it is the figure developed in the conveyance direction (Xs direction) of the board
- the drawing lines LL1 to LL5 and the patterns PT1 to PT5 are thickened in the transport direction of the substrate P so that the relationship between the drawing lines LL1 to LL5 and the patterns PT1 to PT5 can be easily understood.
- the spot light of the drawing beam LB projected from each of the plurality of drawing modules UW1 to UW5 onto the substrate P is directed from the drawing start position PO1 to the drawing end position PO2 along the drawing lines LL1 to LL5.
- the spotlights of the drawing beam LB are all in the same scanning direction scanned along the drawing lines LL1 to LL5.
- it is formed at the end portion PTa of the patterns PT1 to PT5 formed at the drawing start position PO1 of the drawing lines LL1 to LL5 and at the drawing end position PO2 of the drawing lines LL1 to LL5.
- the ends PTb of the formed patterns PT1 to PT5 are adjacent to each other in the patterns PT1 to PT5 adjacent to each other in the width direction of the substrate P.
- the patterns PT1 to PT5 formed on the substrate P are transported at a constant speed in the transport direction. Slightly diagonally formed.
- the scanning speed Vp is proportional to the rotational speed Rv (rps) of the rotating polygon mirror 97 as the scanner 83.
- the reflecting surface of the rotating polygon mirror 97 is eight, and the substantial scanning period for each reflecting surface is 40%.
- the scanning speed Vp is 100,000 mm / S.
- the conveyance speed Vxs of the substrate P is 50 mm / S
- the inclination amount Vxs / Vp of the drawing line on the substrate P is 1/2000. This inclination amount means that both ends of the drawing line in the Y direction (drawing start point PO1 and drawing end point PO2) are shifted on the substrate P by 25 ⁇ m in the Xs direction.
- the rotational speed Rv of the rotating polygon mirror 97 is increased and the transport speed Vxs of the substrate P is decreased, the inclination amount Vxs / Vp of the drawing line can be reduced, but both ends of the drawing line in the Y direction (drawing start points).
- the rotational speed Rv of the rotating polygon mirror 97 is increased several times or more while the substrate is The conveyance speed Vxs of P is greatly reduced.
- the end portion PTa of the patterns PT1 to PT5 formed at the drawing start position PO1 of the drawing lines LL1 to LL5 is compared with the end portion PTb of the patterns PT1 to PT5 formed at the drawing end position PO2 of the drawing lines LL1 to LL5. And formed downstream in the transport direction. Therefore, the end portion PTa and the end portion PTb of the patterns PT1 to PT5 are at different positions in the transport direction. In this case, the patterns PT1 to PT5 spliced in the width direction of the substrate P cause a splicing error in the transport direction between the adjacent patterns PT1 to PT5.
- the splicing errors of the patterns PT1 to PT5 are such that when the scanning speed Vp in the main scanning direction of the spot light of the drawing beam LB is constant, the inclination of the drawing lines LL1 to LL5 with respect to the width direction of the substrate P This occurs because the inclination is not in accordance with the transport speed.
- the inclination of the drawing lines LL1 to LL5 with respect to the width direction of the substrate P is adjusted before drawing by the exposure apparatus EX and at the time of drawing by the exposure apparatus EX, respectively.
- the exposure apparatus EX transports the substrate P at a reference speed (Vxs) that is set in advance before drawing of the exposure apparatus EX (for example, during alignment).
- Vxs a reference speed
- the reference speed may be appropriately changed according to the substrate P to be used.
- the drawing line LL1 is set according to the reference speed set for the substrate P so that the patterns PT1 to PT5 are suitably spliced in the width direction of the substrate P with respect to the substrate P conveyed at the reference speed.
- LL5 is adjusted so as to be appropriately inclined with respect to the center plane p3 (center axis AX2).
- the rotational drive of the rotary drum DR is controlled so that the transport speed of the substrate P becomes the reference speed.
- the structure (bearing characteristics) of the rotary bearing portion of the rotary drum DR is controlled.
- a rotational drive mechanism motor torque characteristics, speed reduction gear characteristics, etc.
- the transport speed of the transported substrate P may slightly vary from the reference speed depending on the rotation period of the rotary drum DR. That is, there may be periodic speed irregularities in the transport speed of the substrate P transported by the rotary drum DR.
- the drawing lines LL1 to LL5 follow the change in the conveyance speed of the substrate P so that the patterns PT1 to PT5 are suitably spliced in the width direction of the substrate P with respect to the substrate P slightly changing from the reference speed. It is preferable to incorporate a configuration (control system) that tilts each of them dynamically (actively).
- FIG. 11 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the first embodiment.
- the second optical surface plate 25 is rotated with respect to the first optical surface plate 23 by the rotation mechanism 24, so that the drawing lines LL1 to LL5 are entirely formed in the width direction of the substrate P. Tilt to. That is, the rotation mechanism 24 functions as an inclination adjustment mechanism that adjusts the inclinations of the drawing lines LL1 to LL5.
- the rotation mechanism 24 rotates the drawing device 11 with respect to the substrate P around the rotation axis I by rotating the second optical surface plate 25 with respect to the first optical surface plate 23.
- the drawing apparatus 11 rotates about the rotation axis I, the drawing lines LL1 to LL5 are not changed in mutual positional relationship, and the width direction of the substrate P (that is, the rotation center line AX2 of the rotation drum DR or the center plane). tilted with respect to p3).
- the control device 16 rotates the rotation mechanism 24 based on the reference speed of the substrate P detected by the rotation position detection mechanism 14.
- the reference speed of the substrate P is associated with the rotation amount of the rotation mechanism 24. This rotation amount is such that the end portions PTa and PTb of the patterns PT1 to PT5 are in the same position in the transport direction, that is, the patterns PT1 to PT5 are formed along the width direction of the substrate P.
- the rotation amount (tilt amount) is small. That is, the control device 16 rotates the rotation mechanism 24 based on the rotation amount associated with the detected reference speed of the substrate P. Specifically, when the patterns PT1 to PT5 shown in FIG. 10 are formed, the control device 16 rotates the rotation mechanism 24 based on the reference speed of the substrate P to thereby draw the drawing start positions of the drawing lines LL1 to LL5.
- the drawing apparatus 11 is rotated with respect to the substrate P so that PO1 is located on the upstream side in the carrying direction and the drawing end position PO2 of the drawing lines LL1 to LL5 is located on the downstream side in the carrying direction.
- the patterns PT1 to PT5 drawn on the substrate P by the drawing lines LL1 to LL5 after being rotated (after tilt correction) by the rotating mechanism 24 are arranged in the width direction of the substrate P as shown by the dotted lines in FIG. It is formed in almost the same direction without inclination.
- the patterns PT1 to PT5 exposed after rotation are formed at slightly different positions in the transport direction of the substrate P according to the inclinations of the drawing lines LL1 to LL5. That is, the pattern PT5 is formed on the downstream side in the transport direction with respect to the pattern PT4, the pattern PT4 is formed on the downstream side in the transport direction with respect to the pattern PT3, and the pattern PT3 is formed in the transport direction with respect to the pattern PT2.
- the pattern PT2 is formed on the downstream side in the transport direction with respect to the pattern PT1.
- the control device 16 controls the drawing timing of each drawing module UW1 to UW5 based on the reference speed of the substrate P detected by the rotational position detection mechanism 14, thereby conveying the rotated patterns PT1 to PT5.
- the position in the direction is corrected. That is, the reference speed of the substrate P is also associated with the correction amount of the drawing timing.
- the control device 16 corrects the CAD information used for drawing on the substrate P in the transport direction in order to correct the drawing timing.
- FIG. 12 is a view showing an image of CAD information used in the exposure apparatus of the first embodiment.
- CAD patterns CAD1 to CAD5 corresponding to the patterns PT1 to PT5 shown in FIG. 11 are shown as CAD information of patterns to be drawn on the substrate P.
- CAD patterns CAD1 to CAD5 indicated by dotted lines in FIG. 12 are CAD patterns (original data for design) CAD1 to CAD5 before correction of the drawing timing, and CAD patterns CAD1 to CAD5 indicated by solid lines in FIG.
- the CAD patterns CAD1 to CAD5 are corrected after the drawing timing is corrected.
- the CAD patterns CAD1 to CAD5 before correction are for drawing data (bit pattern) so that they are drawn in the same arrangement as the patterns PT1 to PT5 to be drawn on the substrate P. And is in the same position in the transport direction of the substrate P. Therefore, the CAD patterns CAD1 to CAD5 before correction are arranged in a line along the width direction of the substrate P.
- the control device 16 uses the CAD patterns CAD1 to CAD5 before correction so that the rotated patterns PT1 to PT5 shown in FIG. 11 are at the same position in the transport direction, that is, the ends PTa and PTb of the patterns PT1 to PT5.
- the CAD patterns CAD1 to CAD4 are corrected in the transport direction based on the CAD pattern CAD5 so that they are joined together. That is, as indicated by the solid line in FIG. 12, the control device 16 changes each of the CAD patterns CAD1 to CAD5 before correction according to the positional deviation amount in the transport direction of the rotated patterns PT1 to PT5 shown in FIG. Correct in the transport direction.
- the correction is performed, for example, by shifting the start timing of reading each drawing data (bit pattern) of the CAD patterns CAD1 to CAD5 before correction from the memory circuit.
- the amount of deviation in the transport direction of the patterns PT1 to PT5 indicated by the dotted lines in FIG.
- correction in the conveyance direction of the CAD patterns CAD1 to CAD5 is performed.
- the CAD pattern CAD5 is positioned upstream of the CAD pattern CAD4 in the transport direction
- the CAD pattern CAD4 is positioned upstream of the CAD pattern CAD3 in the transport direction
- the CAD pattern CAD3 is CAD.
- the CAD pattern CAD2 is positioned upstream of the pattern CAD2 in the transport direction
- the CAD pattern CAD2 is positioned upstream of the CAD pattern CAD1 in the transport direction.
- the control device 16 corrects the other CAD patterns CAD1 to CAD4 based on the CAD pattern CAD5, but may correct the other CAD patterns CAD1 to CAD4 as a reference.
- control device 16 adjusts the CAD patterns CAD1 to CAD5 in the transport direction indicated by the solid lines in FIG. 12 according to the transport speed of the substrate P detected by the rotation position detection mechanism 14 during alignment of the exposure apparatus EX. By correcting the position, patterns PT1 to PT5 indicated by solid lines in FIG. 11 can be drawn on the substrate P.
- the alignment of the drawing lines LL1 to LL5 during the alignment of the exposure apparatus EX may be adjusted manually by rotating the rotation mechanism 24 or by rotating the rotation mechanism 24 by controlling it by the control device 16. Good.
- the rotation mechanism 24 sets the patterns PT1 to PT5 to a predetermined inclination with respect to the substrate P transported at the reference speed by making the drawing lines LL1 to LL5 have a predetermined inclination with respect to the width direction of the substrate P. It is suitably spliced in the width direction of the substrate P.
- the patterns PT1 to PT5 formed on the substrate P are formed obliquely as shown in FIG. That is, the end portions PTa of the patterns PT1 to PT5 are formed on the downstream side in the transport direction as compared with the end portions PTb of the patterns PT1 to PT5.
- the patterns PT1 to PT5 formed on the substrate P are inclined in the opposite direction to the patterns PT1 to PT5 shown in FIG. 10 (in FIG. 10). At the right). That is, the end portions PTa of the patterns PT1 to PT5 are formed on the upstream side in the transport direction as compared with the end portions PTb of the patterns PT1 to PT5.
- the control device 16 draws the drawing lines LL1 to LL5 at the reference speed at the drawing start positions PO1 of the drawing lines LL1 to LL5.
- the drawing end position PO2 of the drawing lines LL1 to LL5 is positioned downstream of the drawing position LL1 to LL5 at the reference speed and downstream of the drawing direction PO2 from the starting position PO1. Then, the rotation mechanism 24 is rotated, and the entire drawing lines LL1 to LL5 are further rotated clockwise from the state of FIG.
- the control device 16 draws the CAD information for drawing on the substrate P in the carrying direction so that the CAD patterns CAD1 to CAD4 are on the downstream side of the carrying direction compared to the CAD patterns CAD2 to CAD5. (Reading start timing of drawing data from the memory circuit) is corrected.
- the control device 16 sets the drawing start positions PO1 of the drawing lines LL1 to LL5 to the drawing lines LL1 to LL at the reference speed.
- the drawing end position PO2 of the drawing lines LL1 to LL5 is located downstream of the drawing start position PO1 of LL5, and the drawing end position PO2 of the drawing lines LL1 to LL5 is upstream of the drawing end position PO2 of the drawing lines LL1 to LL5 at the reference speed.
- the rotation mechanism 24 is rotated so as to be positioned.
- the control device 16 draws CAD information for drawing on the substrate P in the carrying direction so that the CAD patterns CAD1 to CAD4 are upstream of the CAD patterns CAD2 to CAD5 in the carrying direction. (Reading start timing of drawing data from the memory circuit) is corrected.
- the control device 16 determines the transport speed detected by the rotation position detection mechanism 14 even when the substrate P is transported while slightly changing the speed from the reference speed due to speed unevenness during drawing by the exposure apparatus EX. Based on the difference from the reference speed, the overall inclination of the drawing lines LL1 to LL5 can be adjusted. Further, the control device 16 corrects the positions of the CAD patterns CAD1 to CAD5 in the transport direction (corrects the drawing start timing) using the amount of deviation in the transport direction of the rotated patterns PT1 to PT5 as a correction amount, thereby correcting the substrate.
- the patterns PT1 to PT5 can be drawn on the substrate P in a state where they are linearly connected in the width direction of P.
- the rotation amount by the rotation mechanism 24 is preferably obtained in advance according to the reference speed and the transport speed of the substrate P.
- the CAD information correction amount is preferably obtained in advance according to the reference speed and the transport speed of the substrate P.
- the reference speed of the substrate P, the displacement from the reference speed, the rotation amount of the rotation mechanism 24, and the correction amount of the CAD information may be obtained as a correlation map that correlates. Further, when correcting the positions of the CAD patterns CAD1 to CAD5 in the transport direction (correcting the drawing start timing), each of the high-resolution encoder heads EN1 and EN2 (rotational position detection mechanism 14) shown in FIG. 4 or FIG.
- drawing by the drawing lines LL1 to LL5 is started (access of drawing data from the memory circuit is started).
- the control device 16 calculates a deviation amount in the transport direction between the drawing start position PO1 and the drawing end position PO2 of each of the patterns PT1 to PT5 that may occur after the rotation correction by the rotation mechanism 24, the encoder head Correction position information is generated by adding a correction of ⁇ ⁇ Xs corresponding to the deviation amount to the angular position of the rotary drum DR detected by each of EN1 and EN2.
- drawing by the drawing lines LL1 to LL5 is started (access to drawing data from the memory circuit is started).
- the rotation of the second optical surface plate 25 by the rotation mechanism 24 based on the transport speed of the substrate P detected by the rotation position detection mechanism 14 makes the inclinations of the drawing lines LL1 to LL5. Can be adjusted. Therefore, the patterns PT1 to PT5 drawn on the substrate P can be linearly formed along the width direction of the substrate P by the drawing beam LB scanned along the drawing lines LL1 to LL5. Further, after the rotation of the second optical surface plate 25 by the rotation mechanism 24, the drawing timing of the CAD patterns CAD1 to CAD5 is corrected, and the patterns PT1 to PT5 drawn on the substrate P are placed at the same position in the transport direction of the substrate P. It can be.
- the patterns PT1 to PT5 drawn on the substrate P can be corrected so as to be suitably spliced in the width direction and the transport direction (long direction) of the substrate P, a splicing error due to speed unevenness is suppressed. be able to.
- the rotation mechanism 24 can be rotated in real time by the control device 16 according to the transport speed of the substrate P detected by the rotation position detection mechanism 14. For this reason, even during drawing by the exposure apparatus EX, the inclination of the drawing lines LL1 to LL5 with respect to the width direction of the substrate P can be adjusted, and splicing errors caused by periodic speed unevenness of the rotary drum DR can be suppressed. it can.
- the drawing lines LL1 to LL5 in the width direction of the substrate P are upstream of the drawing start positions PO1 of the drawing lines LL1 to LL5 at the reference speed.
- the patterns PT1 to PT5 can be suitably corrected by inclining so as to be downstream of the drawing end position PO2.
- the drawing end positions of the drawing lines LL1 to LL5 in the width direction of the substrate P are downstream of the drawing start positions PO1 of the drawing lines LL1 to LL5 at the reference speed.
- the patterns PT1 to PT5 can be suitably corrected by inclining so as to be upstream of PO2.
- each of the drawing modules UW1 to UW5 can be configured to include the optical deflector 81 and the scanner 83, so that the drawing beam is drawn in a one-dimensional direction along the drawing lines LL1 to LL5.
- LB can be scanned.
- the drawing device 11 installed on the second optical surface plate 25 is rotated by the rotation mechanism 24, whereby the drawing line LL1 is maintained while maintaining the positional relationship between the drawing lines LL1 to LL5. All the slopes of ⁇ LL5 can be adjusted. For this reason, since the control apparatus 16 should just control rotation of the rotation mechanism 24, the structure concerning control can be made into a simple structure.
- the drawing beam LB projected from the drawing modules UW1 to UW5 has a size (spot diameter) on the substrate P of D ( ⁇ m), and the drawing beam LB is scanned along the drawing lines LL1 to LL5.
- the speed is Vp ( ⁇ m / second)
- the light source device CNT can make the light emission repetition period T (second) of the laser light source emitting the pulsed light in a relationship of T ⁇ D / Vp.
- T (second) of the laser light source emitting the pulsed light in a relationship of T ⁇ D / Vp.
- the second optical surface plate 25 is rotated by the rotation mechanism 24 and the drawing apparatus 11 is rotated with respect to the substrate P, whereby the inclinations of the drawing lines LL1 to LL5 with respect to the width direction of the substrate P are increased. It was adjusted.
- the present invention is not limited to this configuration, and the inclination of the drawing lines LL1 to LL5 may be relatively adjusted with respect to the width direction of the substrate P. That is, the exposure apparatus EX may be configured to rotate the rotation center line AX2 of the rotary drum DR in the XY plane around the rotation axis I in the XY plane. In this case, in the transport path of the substrate P, at least the rollers RT1 and RT2 (FIG. 1) arranged before and after the rotary drum DR are integrated and rotated around the rotation axis I in the XY plane. Good to do.
- FIG. 13 is a view showing the configuration of a part of the f- ⁇ lens system of the exposure apparatus of the second embodiment.
- FIG. 14 is a diagram showing the configuration of the cylindrical lens of the f- ⁇ lens system of FIG.
- FIG. 15 is a diagram illustrating an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the second embodiment.
- FIG 16 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the second embodiment.
- the inclination of the drawing lines LL1 to LL5 is adjusted as a whole by rotating the second optical surface plate 25 by the rotation mechanism 24.
- the exposure apparatus EX of the second embodiment individually adjusts the inclinations of the drawing lines LL1 to LL5.
- the f- ⁇ lens system 85 includes a telecentric f- ⁇ lens 85a and a cylindrical lens 85b.
- illustration of lenses other than the telecentric f- ⁇ lens 85a and the cylindrical lens 85b is omitted.
- the telecentric f- ⁇ lens 85a makes the irradiated drawing beam LB parallel light in the XZ plane and converged light in the Y direction (scanning direction).
- the parallel drawing beam LB in the XZ plane irradiates the cylindrical lens 85b.
- the cylindrical lens 85b is provided between the telecentric f- ⁇ lens 85a and the substrate P.
- the cylindrical lens 85b has a generatrix substantially parallel to the scanning direction in which the drawing line LL1 (same for LL2 to LL5) extends, and has a predetermined power (refractive power) in a direction orthogonal to the generatrix and the drawing beam LB. Is condensed into spot light. Further, as shown in FIG.
- the cylindrical lens 85b is rotatable around the rotation axes I1 to I5 in order to finely adjust the inclinations of the drawing lines LL1 to LL5 with respect to the width direction of the substrate P.
- the rotation axes I1 to I5 are rotation axes around a predetermined point in the drawing surface including the drawing lines LL1 to LL5 formed on the substrate P.
- the rotation axes I1 to I5 are, for example, rotation axes centered in the direction in which the drawing lines LL1 to LL5 extend, and are in the same direction as the axis of the drawing beam LB.
- the rotation axes I1, I3, and I5 of the odd-numbered drawing lines LL1, LL3, and LL5 are in the same direction as the installation orientation line Le1, and the rotation axes I2 and I4 of the even-numbered drawing lines LL2 and LL4 are installed.
- the direction is the same as the azimuth line Le2.
- the cylindrical lens 85b is rotated about the rotation axes I1 to I5 by the drive unit 100, and the rotation of the cylindrical lens 85b is controlled by the control device 16 connected to the drive unit 100.
- the drawing lines LL1 to LL5 are inclined with respect to the width direction of the substrate P by rotating the cylindrical lens 85b by the driving unit 100. That is, the cylindrical lens 85b functions as a drawing line rotation mechanism that adjusts the inclination of each of the drawing lines LL1 to LL5.
- the driving unit 100 tilts the drawing lines LL1 to LL5 of the drawing modules UW1 to UW5 with respect to the width direction of the substrate P by rotating the cylindrical lenses 85b around the rotation axes I1 to I5.
- the adjustment of the inclination will be described.
- the adjustment of the inclination of the drawing lines LL1 to LL5 in the second embodiment in the above case is almost the same as the adjustment of the inclination of the drawing lines LL1 to LL5 in the first embodiment. Some explanations are omitted.
- the control device 16 controls the drive unit 100 based on the reference speed of the substrate P detected by the rotational position detection mechanism 14 to rotate the cylindrical lens 85b.
- the reference speed of the substrate P is associated with the amount of rotation of the cylindrical lens 85b.
- the control device 16 rotates the cylindrical lens 85b based on the reference speed of the substrate P, whereby the drawing start position PO1 of the drawing lines LL1 to LL5 is positioned on the upstream side in the transport direction, and the drawing line LL1.
- the cylindrical lens 85b is rotated with respect to the substrate P so that the drawing end position PO2 of LL5 is located on the downstream side in the transport direction.
- the patterns PT1 to PT5 drawn on the substrate P by the rotated drawing lines LL1 to LL5 are linearly formed in substantially the same direction as the width direction of the substrate P as shown by the solid line in FIG. Further, the same position is also obtained in the transport direction of the substrate P. In this way, the patterns PT1 to PT5 are formed by joining them in a line along the width direction of the substrate P.
- the adjustment of the inclination of the drawing lines LL1 to LL5 in the second embodiment in the above case is almost the same as the adjustment of the inclination of the drawing lines LL1 to LL5 in the first embodiment.
- the drive unit 100 sets the patterns PT1 to PT5 to the substrate P transported at the reference speed by making the drawing lines LL1 to LL5 have a predetermined inclination with respect to the width direction of the substrate P. It is suitably spliced in the width direction of the substrate P.
- the patterns PT1 to PT5 formed on the substrate P have an end portion PTa downstream of the end portion PTb in the transport direction. It is formed diagonally so as to be on the side.
- the patterns PT1 to PT5 formed on the substrate P are such that the end portion PTa is on the upstream side in the transport direction compared to the end portion PTb. In addition, it is formed obliquely.
- the control device 16 sets the drawing start positions PO1 of the drawing lines LL1 to LL5 to the reference speed, as in the first embodiment. Is positioned upstream of the drawing start position PO1 of the drawing lines LL1 to LL5 in the transport direction, and the drawing end position PO2 of the drawing lines LL1 to LL5 is transported from the drawing end position PO2 of the drawing lines LL1 to LL5 at the reference speed.
- the drawing lines LL1 to LL5 are tilted by controlling the driving unit 100 of each cylindrical lens 85b so as to be positioned downstream in the direction.
- the control device 16 sets the drawing start positions PO1 of the drawing lines LL1 to LL5 to the drawing lines LL1 to LL at the reference speed.
- the drawing end position PO2 of the drawing lines LL1 to LL5 is located downstream of the drawing start position PO1 of LL5, and the drawing end position PO2 of the drawing lines LL1 to LL5 is upstream of the drawing end position PO2 of the drawing lines LL1 to LL5 at the reference speed.
- the drive unit 100 of each cylindrical lens 85b is controlled so that the drawing line is tilted so as to be positioned.
- the exposure apparatus EX of the second embodiment individually adjusts the inclinations of the drawing lines LL1 to LL5. Therefore, the drawing lines LL1, LL3, LL5 of the upstream (odd number) drawing modules UW1, UW3, UW5 and the downstream (even number) drawing modules UW2, UW4 with the center plane p3 interposed therebetween.
- the inclination can be adjusted separately for the lines LL2 and LL4.
- the speed unevenness that occurs at the time of drawing by the exposure apparatus EX may differ at the rotational position in the circumferential direction of the rotary drum DR.
- the transport speed of the substrate P on the installation orientation line Le1 may be different from the transport speed of the substrate P on the installation orientation line Le2.
- the odd-numbered drawing lines LL1, LL3, LL5 and the even-numbered drawing lines LL2, LL4 have the same inclination with respect to the substrate P. Then, for example, as shown in FIG.
- the patterns PT1, PT3, and PT5 formed by the odd-numbered drawing lines LL1, LL3, and LL5 are formed along the width direction of the substrate P, while The patterns PT2 and PT4 formed by the drawing lines LL2 and LL4 may be formed obliquely with respect to the width direction of the substrate P as indicated by dotted lines in FIG. This is because the odd-numbered drawing lines LL1, LL3, and LL5 and the even-numbered drawing lines LL2 and LL4 are set apart from each other in the Xs direction, so that the pattern to be drawn in the same region in the Xs direction on the substrate P This is because there is a time difference corresponding to the transport speed of the substrate P in the drawing.
- the control device 16 detects the transport speed of the substrate P on the installation direction line Le1 detected by the encoder head EN1 of the rotational position detection mechanism 14, and also detects the installation direction line detected by the encoder head EN2 of the rotational position detection mechanism 14. The conveyance speed of the substrate P in Le2 is detected. And the control apparatus 16 detects the speed difference of the conveyance speed of the board
- the control device 16 controls the drive unit 100 of the cylindrical lens 85b provided in each of the even-numbered drawing modules UW2 and UW4 based on the detected speed difference. And adjust.
- the patterns PT2 and PT4 exposed on the substrate P after adjusting the rotation of the cylindrical lens 85b are linearly formed along the width direction of the substrate P, like the patterns PT1, PT3 and PT5.
- the inclination of the drawing lines LL1 to LL5 is adjusted by rotating the cylindrical lens 85b by the driving unit 100 based on the conveyance speed of the substrate P detected by the rotational position detection mechanism 14. be able to. Therefore, the patterns PT1 to PT5 drawn on the substrate P can be linearly formed along the width direction of the substrate P by the drawing beam LB scanned along the drawing lines LL1 to LL5. The same position can also be set in the transport direction of the substrate P. Therefore, the patterns PT1 to PT5 drawn on the substrate P can be corrected so as to be suitably joined in the width direction and the transport direction (long direction) of the substrate P, and also due to unevenness in the transport speed of the substrate P. The splicing error can be further suppressed.
- the mechanism for adjusting the inclination of the drawing lines LL1 to LL5 can be configured simply by the drive unit 100 and the cylindrical lens 85b.
- the conveyance speed of the drawing lines LL1, LL3, LL5 of the upstream (odd number) drawing modules UW1, UW3, UW5 and the downstream (even number) drawing modules UW2, UW4 The speed difference between the drawing lines LL2 and LL4 and the conveyance speed can be detected, and the inclinations of the drawing lines LL1 to LL5 can be adjusted according to the detected speed difference.
- the conveyance speed of the substrate P at the time of drawing by the drawing lines LL1, LL3, LL5 of the odd-numbered drawing modules UW1, UW3, UW5 and the time of drawing by the drawing lines LL2, LL4 of the even-numbered drawing modules UW2, UW4 Even when the transport speed of the substrate P is different, the patterns PT1 to PT5 drawn on the substrate P can be corrected and exposed so as to be suitably joined to the width direction and the transport direction of the substrate P. Therefore, it is possible to suppress splicing errors due to speed unevenness.
- the drawing lines LL1 to LL5 are rotated about the rotation axes I1 to I5, but the rotation center is not particularly limited.
- the rotation axes I1 to I5 may be set as the drawing start position PO1 or the drawing end position PO2 of the drawing lines LL1 to LL5.
- FIG. 17 is a view showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the third embodiment.
- the exposure apparatus EX of the first embodiment the inclination of the drawing lines LL1 to LL5 is adjusted as a whole by rotating the second optical surface plate 25 by the rotation mechanism 24.
- the exposure apparatus EX of the third embodiment adjusts the drawing timing without changing the inclination of the drawing lines LL1 to LL5.
- the control device 16 corrects the drawing timing according to the transport speed or transport position of the substrate P detected by the rotation position detection mechanism 14.
- the correction of the drawing timing is the same as in the first embodiment, and the CAD information used for drawing on the substrate P is corrected in the transport direction as shown in FIG. That is, the control device 16 connects the CAD patterns CAD1 to CAD5 corresponding to the patterns PT1 to PT5 formed on the substrate P with the CAD patterns CAD1 to CAD5 so that the end portions PTa and PTb of the patterns PT1 to PT5 are joined together.
- CAD5 is corrected in the transport direction.
- control device 16 determines the CAD pattern indicated by the solid line in FIG. 12 according to the transport speed or transport position of the substrate P detected by the rotation position detection mechanism 14 during alignment or drawing of the exposure apparatus EX. By correcting the positions of CAD1 to CAD5 in the transport direction, patterns PT1 to PT5 shown in FIG. 17 can be drawn on the substrate P.
- the drawing timings of the drawing modules UW1 to UW5 can be corrected based on the transport speed or transport position of the substrate P detected by the rotational position detection mechanism 14. Therefore, although the patterns PT1 to PT5 drawn on the substrate P are oblique to the width direction of the substrate P, it can be corrected so as to be spliced in the width direction of the substrate P. Errors can be suppressed.
- FIG. 18 is a diagram showing an example of an arrangement relationship between a pattern drawn on a substrate and a drawing line by the exposure apparatus of the fourth embodiment.
- the scanning directions of the drawing beam LB scanned along the drawing lines LL1 to LL5 are all the same direction.
- the exposure apparatus EX of the fourth embodiment uses the drawing beam LB scanned along the drawing lines LL1, LL3, and LL5 of the odd-numbered drawing modules UW1, UW3, and UW5 among the drawing lines LL1 to LL5.
- the scanning direction and the scanning direction of the drawing beam LB scanned along the drawing lines LL2 and LL4 of the even-numbered drawing modules UW2 and UW4 are opposite to each other.
- the spot light of the drawing beam LB projected from each of the drawing modules UW1 to UW5 onto the substrate P is applied to linear drawing lines LL1 to LL5.
- the scanning direction of the spot light of the drawing beam LB scanned along the drawing lines LL1, LL3, and LL5 is opposite to the scanning direction of the spot light of the drawing beam LB scanned along the drawing lines LL2 and LL4. It has become a direction. This is realized by rotating all the rotating polygon mirrors 97 of the respective drawing modules shown in FIG. 7 in the same direction (for example, all counterclockwise).
- the patterns PT1, PT3, and PT5 formed on the substrate P by the drawing beam LB scanned along the drawing lines LL1, LL3, and LL5 set on a straight line parallel to the center plane p3 are formed on the substrate P.
- the conveyance speed for example, it is formed to be inclined upward in the paper surface of FIG. That is, the right end PTa of the patterns PT1, PT3, and PT5 is formed on the downstream side in the transport direction as compared with the left end PTb of the patterns PT1, PT3, and PT5.
- the patterns PT2 and PT4 formed on the substrate P by the drawing beam LB scanned along the drawing lines LL2 and LL4 set on a straight line parallel to the center plane p3 are affected by the transport speed of the substrate P. Accordingly, the pattern PT1, PT3, PT5 is formed in a direction opposite to the pattern, that is, tilted leftward in the plane of FIG. That is, the right end PTb of the patterns PT2 and PT4 is formed on the upstream side in the transport direction as compared with the left end PTa of the patterns PT2 and PT4.
- the distance between the odd-numbered drawing lines LL1, LL3, LL5 and the even-numbered drawing lines LL2, LL4 in the Xs direction is constant, there is no unevenness in the conveyance speed of the substrate P, and the rotating polygon mirror 97 of each drawing module If the rotation speeds are the same, the left end PTb of the pattern PT1 drawn by the drawing line LL1 and the right end PTb of the pattern PT2 drawn by the drawing line LL2 are the width of the substrate P.
- the direction (Y direction) and the transport direction (Xs direction) are joined together.
- the left end PTa of the pattern PT2 drawn by the drawing line LL2 and the right end PTa of the pattern PT3 drawn by the drawing line LL3 are joined together in the Y direction and the Xs direction, and the drawing line LL3 draws the drawing.
- the left end PTb of the pattern PT3 and the right end PTb of the pattern PT4 drawn by the drawing line LL4 are also joined in the Y direction and the Xs direction, and the left end of the pattern PT4 drawn by the drawing line LL4.
- the part PTa and the right end part PTa of the pattern PT5 drawn by the drawing line LL5 are also joined in the Y direction and the Xs direction.
- the patterns PT1 to PT5 drawn on the substrate P are slightly inclined with respect to the width direction (Y-axis) of the substrate P if the transport speed of the substrate P is not uneven. However, it can be spliced in the width direction of the substrate P.
- FIG. 19 shows a state in which each of the patterns PT1 to PT5 drawn on the substrate P is slightly tilted as shown in FIG. 18, and here, as in the second embodiment (FIG. 14). Further, the inclination of the drawing lines LL1 to LL5 is individually adjusted by causing the driving unit 100 to slightly rotate the cylindrical lens 85b of the f- ⁇ lens system 85 about the rotation axes I1 to I5.
- the drawing start position PO1 of the drawing lines LL1, LL3, LL5 is located upstream ( ⁇ Xs direction) in the transport direction, and the drawing end position PO2 of the drawing lines LL1, LL3, LL5 is in the transport direction.
- the cylindrical lens 85b in each of the drawing modules UW1, UW3, and UW5 is rotated by the driving unit 100 with respect to the substrate P so as to be positioned on the downstream side (+ Xs direction).
- the drawing start position PO1 of the drawing lines LL2 and LL4 is located on the upstream side ( ⁇ Xs direction) in the transport direction
- the drawing end position PO2 of the drawing lines LL2 and LL4 is located on the downstream side (+ Xs direction) in the transport direction.
- the cylindrical lens 85 b is rotated by the driving unit 100 with respect to the substrate P.
- the substrate P is formed so as to be linearly arranged in substantially the same direction as the width direction of the substrate P, and at the same position in the transport direction (Xs direction) of the substrate P.
- the drawn patterns PT1 to PT5 are linearly joined in a line along the width direction of the substrate P.
- the points where the rotation axes I1, I3, and I5 of the cylindrical lens 85b of the odd-numbered f- ⁇ lens system 85 intersect with the Y-Xs plane are parallel to the Y axis. It shall be located on the line.
- the exposure apparatus EX When the exposure apparatus EX performs drawing, when the transport speed of the substrate P on the installation azimuth line Le1 and the transport speed of the substrate P on the installation azimuth line Le2 are different, for example, as indicated by the solid line in FIG. As described above, the patterns PT1, PT3, and PT5 formed by the odd-numbered drawing lines LL1, LL3, and LL5 are formed along the width direction of the substrate P. On the other hand, as shown by the dotted line in FIG. The patterns PT2 and PT4 formed by the drawing lines LL2 and LL4 are formed obliquely with respect to the width direction of the substrate P.
- the control device 16 detects the conveyance speed of the substrate P on the installation orientation line Le1 detected by the encoder head EN1 of the rotational position detection mechanism 14 and the installation orientation line Le2 detected by the encoder head EN2 of the rotational position detection mechanism 14. A difference in speed with respect to the transport speed of the substrate P is detected. And the control apparatus 16 adjusts the inclination of even-numbered drawing line LL2, LL4 based on the detected speed difference.
- the rotated patterns PT2, PT4 are formed along the width direction of the substrate P, similarly to the patterns PT1, PT3, PT5.
- the inclination of the drawing lines LL1 to LL5 is adjusted by rotating the cylindrical lens 85b by the driving unit 100 based on the conveyance speed of the substrate P detected by the rotational position detection mechanism 14. be able to.
- the patterns PT1 to PT5 drawn on the substrate P are precisely and continuously formed without being inclined along the width direction of the substrate P by the drawing beam LB scanned along the drawing lines LL1 to LL5. And can be continued at the same position in the transport direction of the substrate P.
- the patterns PT1 to PT5 drawn on the substrate P can be corrected so as to be suitably joined in the width direction of the substrate P, even if the drawing timing is not corrected as in the first embodiment, It is possible to suppress splicing errors due to speed unevenness.
- the drawing lines LL1 to LL5 are rotated about the rotation axes I1 to I5 as in the second embodiment, but the center of rotation is not particularly limited.
- the rotation axes I1 to I5 may be set as the drawing start position PO1 or the drawing end position PO2 of the drawing lines LL1 to LL5.
- the rotation position of the rotary drum DR (the movement position of the substrate P) and the conveyance speed are detected using the scale portions GPa and GPb formed on the outer peripheral surface of the rotary drum DR.
- the configuration is not limited to this.
- a scale disk with high roundness may be attached to the rotating drum DR.
- the scale disk is provided with scale portions GPa and GPb on the outer peripheral surface, and is fixed to the end of the rotary drum DR so as to be orthogonal to the rotation center line AX2. For this reason, the scale disk rotates together with the rotary drum DR around the rotation center line AX2.
- the scale disk is made to have a diameter as large as possible (for example, a diameter of 20 cm or more) in order to increase the measurement resolution, using a low thermal expansion metal, glass, ceramics or the like as a base material.
- the diameter of the outer peripheral surface of the substrate P wound around the rotary drum DR and the diameters of the scale portions GPa and GPb of the scale disk are aligned (substantially matched), thereby further reducing the so-called measurement Abbe error. Can do.
- the configurations of the first to fourth embodiments may be appropriately combined.
- the entire drawing modules UW1 to UW5 can be slightly rotated by the rotation mechanism 24, and each of the drawing modules UW1 to UW1 to UW1 to the second embodiment (or the fourth embodiment) can be rotated.
- the cylindrical lens 85b of the f- ⁇ lens system 85 of UW5 may be individually finely rotatable.
- the position of each of the plurality of alignment marks Ks1, Ks2, and Ks formed on the substrate P is detected by the corresponding alignment microscope AM1, so that the exposure region A7 on the substrate P is detected.
- Trends such as two-dimensional stretching deformation and nonlinear strain deformation can be continuously measured.
- each or all of the drawing lines LL1 to LL5 on the surface of the substrate P is real-time on the surface of the substrate P so as to match the two-dimensional expansion / contraction deformation or nonlinear distortion deformation of the exposure area A7 measured by the alignment microscope AM1.
- the overlay accuracy of the pattern layer already formed in the exposure area A7 on the substrate P and the drawing pattern to be superimposed and exposed on the pattern layer is adjusted in the exposure area A7. It becomes possible to keep within an allowable range at each place.
- the substrate P is supported by the outer peripheral surface of the rotating drum DR, and the rotating drum DR is rotated to rotate the substrate P while transporting the substrate P in the longitudinal direction.
- the pattern is drawn on the portion supported by the drum DR, the present invention is not limited to this.
- a pattern drawing configuration may be used.
- the rotational speed of the rotating polygon mirror 97 of each of the drawing units UW1 to UW5 may be dynamically changed. That is, the ratio between the scanning speed (main scanning speed) Vp of the spot light scanned along each of the drawing lines LL1 to LL5 and the transport speed (sub-scanning speed) Vxs in the longitudinal direction of the substrate P
- the rotational speed of the rotating polygon mirror 97 may be controlled so as to be substantially constant even when the transport speed changes.
- FIG. 21 is a flowchart illustrating a device manufacturing method according to each embodiment.
- a function / performance design of a display panel using a self-luminous element such as an organic EL is performed, and a necessary circuit pattern or wiring pattern is designed by CAD or the like (step S201).
- a supply roll on which a flexible substrate P (resin film, metal foil film, plastic, or the like) serving as a base material of the display panel is wound is prepared (step S202).
- the roll-shaped substrate P prepared in step S202 has a surface modified as necessary, a base layer (for example, fine irregularities formed by an imprint method) previously formed, and light sensitivity.
- the functional film or transparent film (insulating material) previously laminated may be used.
- step S203 a backplane layer composed of electrodes, wiring, insulating film, TFT (thin film semiconductor), etc. constituting the display panel device is formed on the substrate P, and an organic EL or the like is laminated on the backplane.
- a light emitting layer (display pixel portion) is formed by the self light emitting element (step S203).
- This step S203 includes a conventional photolithography process in which the photoresist layer is exposed using the exposure apparatus EX described in the previous embodiments, but a photosensitive silane coupling material is applied instead of the photoresist.
- Patterning the exposed substrate P to form a pattern based on hydrophilicity and water repellency on the surface, and wet processing for patterning the photosensitive catalyst layer and patterning the metal film (wiring, electrode, etc.) by electroless plating The process includes a process or a printing process in which a pattern is drawn with a conductive ink containing silver nanoparticles, or the like.
- the substrate P is diced for each display panel device continuously manufactured on the long substrate P by a roll method, and a protective film (environmental barrier layer) or a color filter is formed on the surface of each display panel device.
- a device is assembled by bonding sheets or the like (step S204).
- an inspection process is performed to determine whether the display panel device functions normally or satisfies desired performance and characteristics (step S205). As described above, a display panel (flexible display) can be manufactured.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Epidemiology (AREA)
- Public Health (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Description
図1は、第1実施形態の露光装置(基板処理装置)の全体構成を示す図である。第1実施形態の基板処理装置は、基板Pに露光処理を施す露光装置EXであり、露光装置EXは、露光後の基板Pに各種処理を施してデバイスを製造するデバイス製造システム1に組み込まれている。先ず、デバイス製造システム1について説明する。
デバイス製造システム1は、デバイスとしてのフレキシブル・ディスプレー、多層フレキシブル配線、フレキシブル・センサー等の電子デバイスを製造するライン(フレキシブル・電子デバイス製造ライン)である。以下の実施態様では、電子デバイスとしてフレキシブル・ディスプレーを例に説明する。フレキシブル・ディスプレーとしては、例えば有機ELディスプレー等がある。このデバイス製造システム1は、可撓性(フレキシブル)の長尺の基板Pをロール状に巻回した図示しない供給用ロールから、該基板Pが送り出され、送り出された基板Pに対して各種処理を連続的に施した後、処理後の基板Pを可撓性のデバイスとして図示しない回収用ロールに巻き取る、いわゆるロール・ツー・ロール(Roll to Roll)方式となっている。第1実施形態のデバイス製造システム1では、フィルム状のシートである基板Pが供給用ロールから送り出され、供給用ロールから送り出された基板Pが、順次、プロセス装置U1、露光装置EX、プロセス装置U2を経て、回収用ロールに巻き取られるまでの例を示している。ここで、デバイス製造システム1の処理対象となる基板Pについて説明する。
続いて、図1から図9を参照して、露光装置EXについて説明する。図2は、図1の露光装置の主要部の配置を示す斜視図である。図3は、基板上でのアライメント顕微鏡と描画ラインとの配置関係を示す図である。図4は、図1の露光装置の回転ドラム及び描画装置の構成を示す図である。図5は、図1の露光装置の主要部の配置を示す平面図である。図6は、図1の露光装置の分岐光学系の構成を示す斜視図である。図7は、図1の露光装置に設けられる複数の描画モジュール内の各走査器の配置関係を示す図である。図8は、基板上でのアライメント顕微鏡と描画ラインとエンコーダヘッドとの配置関係を示す斜視図である。図9は、図1の露光装置の回転ドラムの表面構造を示す斜視図である。
Vp=(8・Rv・YL)/0.4=20・Rv・YL〔mm/S〕
次に、図13から図16を参照して、第2実施形態の露光装置EXについて説明する。なお、第2実施形態では、第1実施形態と重複する記載を避けるべく、第1実施形態と異なる部分についてのみ説明し、第1実施形態と同様の構成要素については、第1実施形態と同じ符号を付して説明を省略することもある。図13は、第2実施形態の露光装置のf-θレンズ系の一部の構成を示す図である。図14は、図13のf-θレンズ系のシリンドリカルレンズの構成を示す図である。図15は、第2実施形態の露光装置により基板上に描画されたパターンと描画ラインとの配置関係の一例を示す図である。図16は、第2実施形態の露光装置により基板上に描画されたパターンと描画ラインとの配置関係の一例を示す図である。第1実施形態の露光装置EXは、回転機構24により第2光学定盤25を回転させることで、描画ラインLL1~LL5の傾きを全体で調整した。これに対し、第2実施形態の露光装置EXは、描画ラインLL1~LL5の各々の傾きを個別に調整している。
次に、図17を参照して、第3実施形態の露光装置EXについて説明する。なお、第3実施形態でも、第1及び第2実施形態と重複する記載を避けるべく、第1及び第2実施形態と異なる部分についてのみ説明し、第1及び第2実施形態と同様の構成要素については、第1及び第2実施形態と同じ符号を付して説明を省略することもある。図17は、第3実施形態の露光装置により基板上に描画されたパターンと描画ラインとの配置関係の一例を示す図である。第1実施形態の露光装置EXは、回転機構24により第2光学定盤25を回転させることで、描画ラインLL1~LL5の傾きを全体で調整した。これに対し、第3実施形態の露光装置EXは、描画ラインLL1~LL5の傾きを変えることなく、描画タイミングを調整している。
次に、図18を参照して、第4実施形態の露光装置EXについて説明する。なお、第4実施形態でも、第1~第3実施形態と重複する記載を避けるべく、第1~第3実施形態と異なる部分についてのみ説明し、第1~第3実施形態と同様の構成要素については、第1~第3実施形態と同じ符号を付して説明を省略する場合がある。図18は、第4実施形態の露光装置により基板上に描画されたパターンと描画ラインとの配置関係の一例を示す図である。第1~第3実施形態の露光装置EXは、描画ラインLL1~LL5に沿って走査される描画ビームLBの走査方向が全て同じ方向であった。これに対し、第4実施形態の露光装置EXは、描画ラインLL1~LL5のうち、奇数番の描画モジュールUW1,UW3,UW5の描画ラインLL1,LL3,LL5に沿って走査される描画ビームLBの走査方向と、偶数番の描画モジュールUW2,UW4の描画ラインLL2,LL4に沿って走査される描画ビームLBの走査方向とが逆方向となっている。
次に、図21を参照して、デバイス製造方法について説明する。図21は、各実施形態のデバイス製造方法を示すフローチャートである。
11 描画装置
12 基板搬送機構
13 装置フレーム
14 回転位置検出機構
16 制御装置
21 本体フレーム
22 三点座支持部
23 第1光学定盤
24 回転機構
25 第2光学定盤
31 キャリブレーション検出系
44 XY全体ハービング調整機構
45 XY片側ハービング調整機構
51 1/2波長板
52 偏光ミラー
53 ビームディフューザ
60 第1ビームスプリッタ
62 第2ビームスプリッタ
63 第3ビームスプリッタ
73 第4ビームスプリッタ
81 光偏向器
82 1/4波長板
83 走査器
84 折り曲げミラー
85 f-θレンズ系
86 Y倍率補正用光学部材
92 遮光板
96 反射ミラー
97 回転ポリゴンミラー
98 原点検出器
100 駆動部
P 基板
U1,U2 プロセス装置
EX 露光装置
AM1,AM2 アライメント顕微鏡
EVC 温調チャンバー
SU1,SU2 防振ユニット
E 設置面
EPC エッジポジションコントローラ
RT1,RT2 テンション調整ローラ
DR 回転ドラム
AX2 回転中心線
Sf2 シャフト部
p3 中心面
DL たるみ
UW1~UW5 描画モジュール
CNT 光源装置
LB 描画ビーム
I 回転軸
LL1~LL5 描画ライン
PBS 偏光ビームスプリッタ
A7 露光領域
SL 分岐光学系(ビーム分配系)
Le1~Le4 設置方位線
Vw1~Vw6 観察領域
Ks1~Ks3 アライメントマーク
GPa,GPb スケール部
EN1~EN4 エンコーダヘッド
PT1~PT5 パターン
Claims (22)
- 所定幅の基板を支えながら、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が、前記基板の幅方向に継ぎ合わされるように、互いに前記幅方向に隣り合う前記描画ラインを、前記搬送方向に所定の間隔を空けて配置した描画装置と、
前記基板の幅方向に対する前記描画ラインの相対的な傾きを調整する傾き調整機構と、
前記基板の搬送速度を検出する基板速度検出装置と、
を備え、
前記基板速度検出装置によって検出される前記基板の搬送速度に基づいて、前記傾き調整機構によって前記描画ラインの相対的な傾きを調整する
基板処理装置。 - 前記基板速度検出装置によって検出される前記基板の搬送速度に応じて、前記描画ラインの相対的な傾きが調整されるように、前記傾き調整機構を制御する制御装置を備える
請求項1に記載の基板処理装置。 - 前記制御装置は、
前記基板速度検出装置によって検出される前記基板の搬送速度が、基準速度よりも速いときは、前記描画ラインの描画開始側が、前記基準速度における前記描画ラインの描画開始側よりも前記搬送方向の上流側に位置し、前記描画ラインの描画終了側が、前記基準速度における前記描画ラインの描画終了側よりも前記搬送方向の下流側に位置するように、前記傾き調整機構を制御し、
前記基板速度検出装置によって検出される前記基板の搬送速度が、前記基準速度よりも遅いときは、前記描画ラインの描画開始側が、前記基準速度における前記描画ラインの描画開始側よりも前記搬送方向の下流側に位置し、前記描画ラインの描画終了側が、前記基準速度における前記描画ラインの描画終了側よりも前記搬送方向の上流側に位置するように、前記傾き調整機構を制御する
請求項2に記載の基板処理装置。 - 前記複数の描画モジュールの各々は、前記描画ラインに沿った一方向に前記描画ビームが走査する期間中に前記パターンの描画動作を行う走査器と変調器とを有する
請求項1から3のいずれか1項に記載の基板処理装置。 - 前記描画装置は、前記複数の描画モジュールの各々が前記描画動作の間に前記描画ビームを走査する方向が前記基板上で同一方向となるように、前記複数の描画モジュールを保持する定盤を備え、
前記傾き調整機構は、前記複数の描画モジュールの各々によって形成される前記描画ラインを含む描画面内の所定点を中心として、前記描画面内で前記定盤を回転させる回転機構を含む
請求項4に記載の基板処理装置。 - 前記描画装置は、前記複数の描画モジュールの各々から投射される前記描画ビームの描画時の走査方向が、前記基板上で同一方向となるように、前記複数の描画モジュールを保持する定盤を含み、
前記傾き調整機構は、前記複数の描画モジュールによって形成される前記描画ラインの各々を含む描画面内の所定点を中心として、前記描画面内で前記定盤を回転させる回転機構を含み、
前記制御装置は、前記基板速度検出装置により検出される前記基板の搬送速度に応じて前記回転機構を駆動制御する
請求項2または3に記載の基板処理装置。 - 前記制御装置は、
前記基板の幅方向に互いに隣り合う、第1の描画ラインの端部で描画されるパターンと、第2の描画ラインの端部で描画されるパターンとが、前記回転機構による前記定盤の回転後も、前記搬送方向又は前記幅方向おいて前記基板上で同一位置となるように、前記描画モジュールの各々の描画タイミングを補正する
請求項6に記載の基板処理装置。 - 前記描画装置は、さらに前記描画ビームとしてパルス光を発生するパルス光源を備え、
前記描画モジュールから投射される前記描画ビームの前記基板上におけるサイズをD(μm)、前記描画ビームの前記描画ラインに沿った走査速度をVp(μm/秒)としたとき、前記パルス光源の発光繰り返し周期T(秒)を、T<D/Vpの関係にする
請求項4に記載の基板処理装置。 - 前記傾き調整機構は、前記複数の描画モジュールの各々に設けられ、前記基板上に形成される前記描画ラインを含む描画面内の所定点を中心として、前記描画面内で前記描画ラインを回転させる描画ライン回転機構を備え、
前記制御装置は、前記基板速度検出装置により検出された前記基板の搬送速度に応じて、前記複数の描画モジュールごとに設けられた前記描画ライン回転機構の各々を駆動制御する
請求項2または3に記載の基板処理装置。 - 前記描画装置は、前記複数の描画モジュールの各々から投射される前記描画ビームの描画時の走査方向が、前記基板の幅方向において互いに隣り合う前記描画ラインごとに逆方向となるように、前記複数の描画モジュールを保持する定盤を含み、
前記傾き調整機構は、前記複数の描画モジュールの各々に設けられ、前記基板上に形成される前記描画ラインを含む描画面内の所定点を中心として、前記描画面内で前記描画ラインを回転させる描画ライン回転機構を備える
請求項1に記載の基板処理装置。 - 前記基板速度検出装置により検出される前記基板の搬送速度に応じて、前記描画ラインの各々の相対的な傾きが調整されるように、前記複数の描画モジュールごとに設けられた前記描画ライン回転機構を制御する制御装置を備える
請求項10に記載の基板処理装置。 - 前記複数の描画モジュールの各々は、
前記基板に向かう前記描画ビームを一方向に偏向走査する回転多面鏡と、
前記回転多面鏡で偏向走査された前記描画ビームを前記基板上の前記描画ラインに導くf-θレンズと、
前記f-θレンズと前記基板との間に設けられ、前記描画ラインが延びる方向とほぼ平行な母線を有し、該母線と直交する方向に前記描画ビームを集光するシリンドリカルレンズと、を有し、
前記描画ライン回転機構は、前記シリンドリカルレンズを回転させることによって、前記描画ラインを相対的に傾ける
請求項9から11のいずれか1項に記載の基板処理装置。 - 前記複数の描画モジュールは、前記基板の搬送方向の上流側に設けられる上流側描画モジュールと、前記基板の搬送方向の下流側に設けられる下流側描画モジュールと、を有し、
前記制御装置は、前記上流側描画モジュールによる前記描画ラインにおける前記基板の上流側搬送速度と、前記下流側描画モジュールによる前記描画ラインにおける前記基板の下流側搬送速度との差を検出する速度差検出機構を含み、該検出された速度差に応じて、前記傾き調整機構により、前記下流側描画モジュールによる前記描画ラインの傾きを調整する
請求項2または11に記載の基板処理装置。 - 所定幅の基板を支えながら、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が、前記基板の幅方向に継ぎ合わされるように、互いに前記幅方向に隣り合う前記描画ラインを、前記搬送方向に所定の間隔を空けて配置した描画装置と、
前記基板の搬送速度を検出する基板速度検出装置と、
前記複数の描画モジュールのうち、前記基板の幅方向において互いに隣り合う一方の前記描画モジュールによる前記描画ラインの端部で描画されるパターンと、他方の前記描画モジュールによる前記描画ラインの端部で描画されるパターンとが、前記搬送方向又は前記幅方向おいて継ぎ合されるように、前記基板速度検出装置により検出される前記搬送速度に応じて、前記描画モジュールの各々の描画タイミングを制御する制御装置と、
を備える基板処理装置。 - 所定幅の基板を支えながら、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が、前記基板の幅方向に継ぎ合わされるように、互いに前記幅方向に隣り合う前記描画ラインを、前記搬送方向に所定の間隔を空けて配置した描画装置と、を備え、
前記基板の幅方向に継ぎ合わせるべき一方のパターンを描画する一方の前記描画モジュールが前記描画ラインに沿って前記描画ビームを走査する走査方向と、前記基板の幅方向に継ぎ合わせるべき他方のパターンを描画する他方の前記描画モジュールが前記描画ラインに沿って前記描画ビームを走査する走査方向とを逆向きにする
基板処理装置。 - 前記基板搬送機構は、
前記基板の幅方向に延びた中心線から一定半径の円筒状の外周面で前記基板を支持し、前記中心線の回りに回転することにより、前記基板を前記搬送方向に搬送させる回転ドラムを有し、
前記複数の描画モジュールの各々によって前記基板上に形成される前記描画ラインの方向を、前記回転ドラムの中心線の方向とほぼ揃える
請求項1から15のいずれか1項に記載の基板処理装置。 - 請求項1から16のいずれか1項に記載の基板処理装置を備える
デバイス製造システム。 - 請求項1から16のいずれか1項に記載の基板処理装置を用いて、前記基板上に形成された光感応層に前記複数の描画モジュールの各々からの前記描画ビームを走査して、継ぎ合わされたパターンを描画することと、
前記基板を処理することにより、前記基板上に前記継ぎ合わされたパターンに応じたデバイスの層構造を形成することと、を含む
デバイス製造方法。 - 所定幅の可撓性の基板を、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が前記基板の幅方向に継ぎ合わされるように、前記複数の描画モジュールを保持する描画装置と、
前記基板の搬送方向への搬送速度の変化に応じて、前記複数の描画モジュールの各々に対応した前記描画ラインを回転させる回転機構と、
を備える基板処理装置。 - 所定幅の可撓性の基板を、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が前記基板の幅方向に継ぎ合わされるように、前記複数の描画モジュールを保持する描画装置と、
前記基板の搬送方向への搬送速度の変化に応じて、前記複数の描画モジュールの各々に対応した前記描画ラインにおける前記パターンの描画タイミングを調整する描画制御部と、
を備える基板処理装置。 - 所定幅の可撓性の基板を、前記基板の幅方向と交差する搬送方向に所定速度で搬送する基板搬送機構と、
前記基板に投射される描画ビームを前記基板の幅よりも狭い範囲で前記幅方向に走査して得られる描画ラインに沿って、所定のパターンを前記基板上に描画する描画モジュールを複数有し、前記複数の描画モジュールの各々によって前記基板上に描画されるパターン同士が前記基板の幅方向に継ぎ合わされるように、前記複数の描画モジュールを保持する定盤を備えた描画装置と、
前記複数の描画モジュールの各々によって形成される前記描画ラインを含む描画面内で前記定盤と前記基板搬送機構とを相対回転させる第1の回転機構と、
前記複数の描画モジュールの各々に設けられ、前記描画面内の所定点を中心として、前記描画面内で前記描画ラインの各々を回転させる第2の回転機構と、
を備える基板処理装置。 - 請求項19または20に記載の基板処理装置であって、
前記基板は、前記搬送方向に長尺なシート基板であり、
前記基板搬送装置は、
前記シート基板の長尺の方向の一部を円筒面状に支持する外周面を有し、所定の中心軸の回りに回転して前記シート基板を長尺の方向に搬送する回転ドラムと、
前記回転ドラムの中心軸から前記外周面までの半径とほぼ同じ半径の外周面に、周方向に沿って連続してスケール部が形成され、前記回転ドラムと共に回転するスケール部材と、
前記スケール部材の外周面と対向して配置され、前記スケール部の周方向の位置変化を検出するエンコーダヘッドとを備え、
前記エンコーダヘッドで検出される前記スケール部の位置変化に基づいて、前記シート基板の搬送速度の変化を計測する、
基板処理装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201680006570.9A CN107209461B (zh) | 2015-02-27 | 2016-02-26 | 基板处理装置、元件制造系统及元件制造方法 |
KR1020177022055A KR102206992B1 (ko) | 2015-02-27 | 2016-02-26 | 기판 처리 장치, 디바이스 제조 방법 |
JP2017502524A JP6794980B2 (ja) | 2015-02-27 | 2016-02-26 | 基板処理装置、及びデバイス製造方法 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015-039243 | 2015-02-27 | ||
JP2015039243 | 2015-02-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016136974A1 true WO2016136974A1 (ja) | 2016-09-01 |
Family
ID=56788595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/055905 WO2016136974A1 (ja) | 2015-02-27 | 2016-02-26 | 基板処理装置、デバイス製造システム及びデバイス製造方法 |
Country Status (6)
Country | Link |
---|---|
JP (2) | JP6794980B2 (ja) |
KR (1) | KR102206992B1 (ja) |
CN (3) | CN107209461B (ja) |
HK (1) | HK1257065A1 (ja) |
TW (2) | TWI699624B (ja) |
WO (1) | WO2016136974A1 (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107209461B (zh) * | 2015-02-27 | 2019-10-18 | 株式会社尼康 | 基板处理装置、元件制造系统及元件制造方法 |
JP2023141515A (ja) * | 2022-03-24 | 2023-10-05 | 株式会社Screenホールディングス | 指示用プログラム、プログラムセットおよび描画システム |
CN115561736B (zh) * | 2022-10-25 | 2023-10-13 | 山东莱恩光电科技股份有限公司 | 一种激光雷达免维护护罩及雷达 |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6111720A (ja) * | 1984-06-26 | 1986-01-20 | Canon Inc | 画像形成装置 |
JPH03163477A (ja) * | 1989-11-21 | 1991-07-15 | Brother Ind Ltd | 分割露光装置 |
JPH07246729A (ja) * | 1994-03-11 | 1995-09-26 | Dainippon Screen Mfg Co Ltd | 画像記録装置 |
JPH10142538A (ja) * | 1996-11-12 | 1998-05-29 | Asahi Optical Co Ltd | マルチヘッド走査光学系を持つレーザ描画装置 |
JPH10246861A (ja) * | 1997-01-06 | 1998-09-14 | Asahi Optical Co Ltd | カスケード走査光学系を備えた記録装置 |
JP2000019438A (ja) * | 1998-06-30 | 2000-01-21 | Mitsubishi Chemicals Corp | 走査装置 |
JP2007298603A (ja) * | 2006-04-28 | 2007-11-15 | Shinko Electric Ind Co Ltd | 描画装置および描画方法 |
JP2013200463A (ja) * | 2012-03-26 | 2013-10-03 | Nikon Corp | 基板処理装置 |
JP2015145990A (ja) * | 2014-02-04 | 2015-08-13 | 株式会社ニコン | 露光装置 |
JP2015219244A (ja) * | 2014-05-13 | 2015-12-07 | 株式会社ニコン | 基板処理装置、デバイス製造方法及び基板処理方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5668588A (en) * | 1993-04-01 | 1997-09-16 | Dainippon Screen Mfg. Co., Ltd. | Spiral scanning image recording apparatus and image recording method |
JP3648516B2 (ja) | 1999-02-05 | 2005-05-18 | ペンタックスインダストリアルインスツルメンツ株式会社 | 走査式描画装置 |
JP2001305454A (ja) * | 2000-04-24 | 2001-10-31 | Asahi Optical Co Ltd | 走査式描画装置 |
JP2003115449A (ja) * | 2001-02-15 | 2003-04-18 | Nsk Ltd | 露光装置 |
JP2003140069A (ja) * | 2001-10-30 | 2003-05-14 | Panasonic Communications Co Ltd | 光走査装置及びその調整方法 |
KR101037057B1 (ko) * | 2002-12-10 | 2011-05-26 | 가부시키가이샤 니콘 | 노광 장치 및 디바이스 제조 방법 |
CN101840162B (zh) * | 2005-06-20 | 2011-09-28 | 株式会社V技术 | 曝光装置及图形形成方法 |
JP4683016B2 (ja) * | 2007-07-17 | 2011-05-11 | ブラザー工業株式会社 | 光走査装置及び印刷装置 |
JP5319175B2 (ja) * | 2008-06-17 | 2013-10-16 | 日立造船株式会社 | パターン描画方法及び装置 |
US8264666B2 (en) * | 2009-03-13 | 2012-09-11 | Nikon Corporation | Exposure apparatus, exposure method, and method of manufacturing device |
KR101623695B1 (ko) * | 2011-11-04 | 2016-05-23 | 가부시키가이샤 니콘 | 기판 처리 장치, 및 기판 처리 방법 |
KR101982460B1 (ko) * | 2012-03-26 | 2019-05-27 | 가부시키가이샤 니콘 | 기판 처리 장치, 처리 장치 및 디바이스 제조 방법 |
IN2015DN01909A (ja) * | 2012-08-28 | 2015-08-07 | Nikon Corp | |
CN102890429B (zh) * | 2012-09-18 | 2015-02-11 | 天津芯硕精密机械有限公司 | 光刻系统中倾斜扫描显示下提高数据传输速度的方法 |
CN107209461B (zh) * | 2015-02-27 | 2019-10-18 | 株式会社尼康 | 基板处理装置、元件制造系统及元件制造方法 |
-
2016
- 2016-02-26 CN CN201680006570.9A patent/CN107209461B/zh active Active
- 2016-02-26 JP JP2017502524A patent/JP6794980B2/ja active Active
- 2016-02-26 KR KR1020177022055A patent/KR102206992B1/ko active IP Right Grant
- 2016-02-26 TW TW105105850A patent/TWI699624B/zh active
- 2016-02-26 TW TW109120599A patent/TWI720911B/zh active
- 2016-02-26 CN CN201911069205.4A patent/CN110794651B/zh active Active
- 2016-02-26 CN CN201810732338.4A patent/CN108919610B/zh active Active
- 2016-02-26 WO PCT/JP2016/055905 patent/WO2016136974A1/ja active Application Filing
-
2017
- 2017-10-13 HK HK18116233.3A patent/HK1257065A1/zh unknown
-
2018
- 2018-10-11 JP JP2018192822A patent/JP6648798B2/ja active Active
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6111720A (ja) * | 1984-06-26 | 1986-01-20 | Canon Inc | 画像形成装置 |
JPH03163477A (ja) * | 1989-11-21 | 1991-07-15 | Brother Ind Ltd | 分割露光装置 |
JPH07246729A (ja) * | 1994-03-11 | 1995-09-26 | Dainippon Screen Mfg Co Ltd | 画像記録装置 |
JPH10142538A (ja) * | 1996-11-12 | 1998-05-29 | Asahi Optical Co Ltd | マルチヘッド走査光学系を持つレーザ描画装置 |
JPH10246861A (ja) * | 1997-01-06 | 1998-09-14 | Asahi Optical Co Ltd | カスケード走査光学系を備えた記録装置 |
JP2000019438A (ja) * | 1998-06-30 | 2000-01-21 | Mitsubishi Chemicals Corp | 走査装置 |
JP2007298603A (ja) * | 2006-04-28 | 2007-11-15 | Shinko Electric Ind Co Ltd | 描画装置および描画方法 |
JP2013200463A (ja) * | 2012-03-26 | 2013-10-03 | Nikon Corp | 基板処理装置 |
JP2015145990A (ja) * | 2014-02-04 | 2015-08-13 | 株式会社ニコン | 露光装置 |
JP2015219244A (ja) * | 2014-05-13 | 2015-12-07 | 株式会社ニコン | 基板処理装置、デバイス製造方法及び基板処理方法 |
Also Published As
Publication number | Publication date |
---|---|
JP6794980B2 (ja) | 2020-12-02 |
TWI720911B (zh) | 2021-03-01 |
KR20170121168A (ko) | 2017-11-01 |
JP6648798B2 (ja) | 2020-02-14 |
TW201702746A (zh) | 2017-01-16 |
CN107209461B (zh) | 2019-10-18 |
KR102206992B1 (ko) | 2021-01-25 |
JP2019049731A (ja) | 2019-03-28 |
CN110794651A (zh) | 2020-02-14 |
TWI699624B (zh) | 2020-07-21 |
JPWO2016136974A1 (ja) | 2017-12-07 |
CN110794651B (zh) | 2021-07-09 |
CN108919610A (zh) | 2018-11-30 |
HK1257065A1 (zh) | 2019-10-11 |
CN108919610B (zh) | 2021-02-02 |
CN107209461A (zh) | 2017-09-26 |
TW202036178A (zh) | 2020-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6849119B2 (ja) | 直描露光装置 | |
JP6597602B2 (ja) | 基板処理装置及びデバイス製造方法 | |
TWI691799B (zh) | 光束掃描裝置及描繪裝置 | |
JP6648798B2 (ja) | パターン描画装置 | |
JP6361273B2 (ja) | 基板処理装置及びデバイス製造方法 | |
JP6413784B2 (ja) | 基板処理装置及びデバイス製造方法 | |
JP6680330B2 (ja) | パターン形成装置 | |
JP6547879B2 (ja) | 露光装置、及びデバイス製造方法 | |
JP6950787B2 (ja) | パターン形成装置 | |
JP6750712B2 (ja) | 基板処理装置、及びデバイス製造方法 | |
JP6996580B2 (ja) | 基板処理方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16755718 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017502524 Country of ref document: JP Kind code of ref document: A |
|
ENP | Entry into the national phase |
Ref document number: 20177022055 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16755718 Country of ref document: EP Kind code of ref document: A1 |