WO2005036623A1 - 基板搬送装置及び基板搬送方法、露光装置及び露光方法、デバイス製造方法 - Google Patents
基板搬送装置及び基板搬送方法、露光装置及び露光方法、デバイス製造方法 Download PDFInfo
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- WO2005036623A1 WO2005036623A1 PCT/JP2004/014945 JP2004014945W WO2005036623A1 WO 2005036623 A1 WO2005036623 A1 WO 2005036623A1 JP 2004014945 W JP2004014945 W JP 2004014945W WO 2005036623 A1 WO2005036623 A1 WO 2005036623A1
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- Prior art keywords
- substrate
- liquid
- back surface
- arm member
- transport
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Classifications
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- 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
- G03F7/70341—Details of immersion lithography aspects, e.g. exposure media or control of immersion liquid supply
-
- 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
- G03F7/2041—Exposure; Apparatus therefor in the presence of a fluid, e.g. immersion; using fluid cooling means
-
- 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
- G03F7/7075—Handling workpieces outside exposure position, e.g. SMIF box
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- 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
- G03F7/70908—Hygiene, e.g. preventing apparatus pollution, mitigating effect of pollution or removing pollutants from apparatus
- G03F7/70925—Cleaning, i.e. actively freeing apparatus from pollutants, e.g. using plasma cleaning
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67051—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing using mainly spraying means, e.g. nozzles
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/687—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68707—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a robot blade, or gripped by a gripper for conveyance
Definitions
- Substrate transfer device and substrate transfer method exposure apparatus and exposure method, device manufacturing method
- the present invention relates to a substrate transfer apparatus and a substrate transfer method for transferring a substrate exposed by a liquid immersion method, an exposure apparatus and an exposure method, and a device manufacturing method.
- Semiconductor devices and liquid crystal display devices are manufactured by a so-called photolithography technique in which a pattern formed on a mask is transferred onto a photosensitive substrate.
- An exposure apparatus used in the photolithography process has a mask stage for supporting a mask and a substrate stage for supporting a substrate, and sequentially moves the mask stage and the substrate stage to project a pattern of the mask through a projection optical system. Transfer to the substrate.
- further improvement in the resolution of the projection optical system has been desired in order to cope with higher integration of device patterns.
- the resolution of the projection optical system increases as the exposure wavelength used decreases and as the numerical aperture of the projection optical system increases.
- the exposure wavelength used in the exposure apparatus is becoming shorter year by year, and the numerical aperture of the projection optical system is also increasing.
- the mainstream exposure wavelength is 248 nm of KrF excimer laser, but 193 nm of shorter wavelength ArF excimer laser is also being put to practical use.
- the depth of focus (DOF) is as important as the resolution.
- the resolution and the depth of focus ⁇ are respectively represented by the following equations.
- ⁇ is the exposure wavelength
- ⁇ is the numerical aperture of the projection optical system
- k and k are process coefficients.
- the space between the lower surface of the projection optical system and the substrate surface is filled with a liquid such as water or an organic solvent, and the wavelength of the exposure light in the liquid lZn in the air (n is the refractive index of the liquid)
- n is the refractive index of the liquid
- Patent Document 1 International Publication No. 99-49504 pamphlet
- the substrate exposed by the liquid immersion method is carried out of the substrate stage by the substrate transport member.
- the liquid between the substrate transport member and the substrate becomes a lubricating film, and the substrate becomes slippery with respect to the substrate transport member (the position becomes slippery).
- the substrate transport member may not be able to transport the substrate in a desired state.
- the liquid may form a film and the substrate may slip on the substrate transport member, and the substrate may not be transported satisfactorily.
- the substrate transport member is configured to hold the substrate by vacuum suction, if a liquid is attached to the substrate, there is a possibility that the liquid may enter the vacuum system and damage the vacuum system.
- the liquid is attached to the substrate or the substrate transfer member and transferred, the liquid drops from the substrate during the transfer, and the devices and members around the transfer path are stretched by the dropped liquid.
- inconveniences such as the inability to maintain the cleanliness of the environment in which the exposure apparatus is arranged occur.
- the dropped liquid may cause an environmental change (humidity change) around the exposure apparatus.
- the liquid adheres to the substrate carrying member! / ⁇ the liquid adheres to the substrate and contaminates the substrate, or if the liquid adhered to the substrate dries before the exposure processing, a mark is formed. Leaving it on the substrate surface could lead to a decrease in the quality of the manufactured device. Further, if, for example, a developing process is performed in a state where the liquid is attached to the substrate after the exposure process, the Liquids adhering to the substrate may collect impurities (dust and the like) in the atmosphere and contaminate the substrate, which may make it impossible to manufacture a device having desired performance.
- the present invention has been made in view of such circumstances, and a substrate transport apparatus, a substrate transport method, an exposure apparatus, and an exposure method capable of favorably transporting a substrate exposed by a liquid immersion method in a desired state. And a device manufacturing method.
- the substrate is supported in a substrate transport apparatus that transports a substrate exposed by an image of a pattern via a projection optical system and a liquid. It is provided with a substrate support member, the substrate support member, and a liquid removing mechanism that removes the liquid attached to at least one of at least a part of the back surface of the substrate.
- the substrate transport apparatus that transports a substrate exposed by an image of a pattern via a projection optical system and a liquid
- the substrate is transported and the liquid is transported.
- a substrate transfer member provided with a moisture absorbing material that absorbs the moisture.
- a partial area of a rear surface of the substrate is provided in a substrate transporting apparatus that transports a substrate having a pattern image exposed through a projection optical system and a liquid.
- a first liquid removing mechanism for removing the liquid adhered to the substrate, and a liquid adhering to a surface of the substrate after the liquid attached to a partial area of the back surface of the substrate is removed by the first liquid removing mechanism.
- a second liquid removing mechanism for removing the liquid for removing the liquid.
- a back surface of the substrate is supported by a substrate. Before being supported by the member, the liquid adhering to the support area supported by the substrate support member on the back surface of the substrate is removed.
- a partial area of a rear surface of the substrate is provided. After the liquid attached to the substrate is removed and the liquid attached to the partial area is removed, the liquid attached to the surface of the substrate is removed.
- the substrate after the immersion exposure processing when transported, the substrate is brought into a desired state.
- a device having a desired performance can be manufactured.
- FIG. 1 is a schematic configuration diagram showing one embodiment of a device manufacturing system as an exposure apparatus of the present invention.
- FIG. 2 is a view of FIG. 1 as viewed from above.
- FIG. 3 is a schematic configuration diagram illustrating an embodiment of an exposure apparatus main body that performs an exposure process.
- FIG. 4 is a diagram showing an example of the arrangement of supply nozzles and recovery nozzles.
- FIG. 5 is a schematic configuration diagram showing one embodiment of a transfer arm member according to the present invention.
- FIG. 6A is a view showing one embodiment of a liquid removing operation by the transfer arm member according to the present invention.
- FIG. 6B is a view showing one embodiment of a liquid removing operation by the transfer arm member according to the present invention.
- FIG. 7A is a schematic configuration diagram showing one embodiment of a holding table according to the present invention.
- FIG. 7B is a schematic configuration diagram showing one embodiment of a holding table according to the present invention.
- FIG. 8A is a view showing one embodiment of a liquid removing operation by the holding table according to the present invention.
- FIG. 8B is a view showing one embodiment of a liquid removing operation by the holding table according to the present invention.
- FIG. 9 is a diagram showing one embodiment of a liquid removing operation by the first liquid removing system.
- FIG. 10 is a schematic configuration diagram showing another embodiment of the transfer arm member according to the present invention.
- FIG. 11 is a schematic configuration diagram showing another embodiment of the transfer arm member according to the present invention.
- FIG. 12A is a view showing another embodiment of the liquid removing operation by the first liquid removing system.
- FIG. 12B is a view showing another embodiment of the liquid removing operation by the first liquid removing system.
- FIG. 13 is a diagram showing another embodiment of the liquid removing operation by the first liquid removing system.
- FIG. 14 is a diagram showing another embodiment of the liquid removing operation by the first liquid removing system.
- FIG. 15 is a diagram schematically showing a configuration example of a second liquid removal system.
- FIG. 16 is a diagram schematically showing another configuration example of the second liquid removal system.
- FIG. 17 is a diagram schematically showing another configuration example of the second liquid removal system.
- FIG. 18 is a view schematically showing another example of the transport system including the second liquid removal system.
- FIG. 19 is a flowchart illustrating an example of a semiconductor device manufacturing process.
- Vacuum system (adsorption mechanism), 35... Gas supply system (gas blowing mechanism),
- connection mechanism 38 ... 1st flow path (connection mechanism), 38 ⁇ ⁇ 'valve (connection mechanism),
- Substrate transfer system (substrate transfer device), H2-2nd arm member (substrate support member),
- HT Holding table (substrate support member), LQ: Liquid, substrate, PL: Projection optical system, P
- FIG. 1 is a diagram showing an embodiment of a device manufacturing system provided with an exposure apparatus of the present invention, and is a schematic configuration diagram viewed from a side
- FIG. 2 is a diagram viewed from above of FIG.
- the device manufacturing system SYS includes an exposure apparatus EX-SYS and a coater / developing device CZD-SYS (see FIG. 2).
- the exposure system EX-SYS One developer unit CZD—The interface IF (see Fig. 2) that forms the connection with the SYS, the space between the projection optical system PL and the substrate P is filled with the liquid LQ, and the projection optical system PL and the liquid LQ are filled.
- the exposure apparatus main body EX for exposing the substrate P by projecting the pattern formed on the mask onto the substrate P through the interface, and the transport system H for transporting the substrate P between the interface section IF and the exposure apparatus main body EX.
- a second liquid removal system 220 for removing the liquid LQ adhered to the surface, and a controller CONT for controlling the overall operation of the entire exposure apparatus EX-SYS are provided.
- the coater's developer device CZD-SYS was exposed to light by the coating device C, which applies a photoresist (photosensitizer) to the substrate of the substrate P before the exposure process, and the exposure device body EX.
- a developing device (processing device) D for developing the subsequent substrate P. As shown in FIG.
- the exposure apparatus main body EX is disposed inside the first chamber apparatus CH1 in which cleanliness is controlled.
- the coating device C and the developing device D are arranged inside the second chamber device CH2 different from the first chamber device CH1.
- the first chamber device CH1 that houses the exposure apparatus body EX and the second chamber device CH2 that houses the coating device C and the developing device D are connected via an interface IF.
- the coating device C and the developing device D housed inside the second chamber device CH2 are collectively referred to as “coater / developing unit main body CZD” as appropriate.
- the exposure apparatus body EX has an illumination optical system IL that illuminates the mask M supported on the mask stage MST with the exposure light EL, and a pattern of the mask M illuminated with the exposure light EL.
- the projection optical system includes a projection optical system PL that projects an image on the substrate P, and a substrate stage PST that supports the substrate P.
- the exposure apparatus body EX of the present embodiment is a scanning type that exposes a pattern formed on the mask M to the substrate P while synchronously moving the mask M and the substrate P in different directions (opposite directions) in the scanning direction.
- An exposure apparatus (a so-called scanning stepper).
- the direction of synchronous movement (scanning direction) of the mask M and the substrate P in the horizontal plane is the X-axis direction
- the direction orthogonal to the X-axis direction in the horizontal plane is the Y-axis direction (non-scanning direction)
- the X-axis The direction perpendicular to the Y-axis direction and coincident with the optical axis AX of the projection optical system PL is defined as the Z-axis direction.
- the “substrate” includes a semiconductor wafer coated with a resist
- the “mask” includes a reticle on which a device pattern to be reduced and projected on the substrate is formed.
- the transport system ⁇ includes a first arm member HI for carrying (loading) the substrate ⁇ ⁇ ⁇ before exposure processing to the substrate stage PST, and unloading (unloading) the substrate P after exposure processing from the substrate stage PST. ) And a second arm member H2. As shown in FIG. 2, the substrate P before the exposure processing transported from the coating apparatus is transferred to the third arm member H3 via the interface IF. The third arm member H3 transfers the substrate P to the bri-alignment unit PAL. The preparatory section PAL roughly adjusts the position of the substrate P with respect to the substrate stage PST. The substrate P aligned by the bri-alignment unit PAL is loaded on the substrate stage PST by the first arm member HI.
- the substrate P after the exposure processing is unloaded from the substrate stage PST by the second arm member H2.
- the second arm member H2 transfers the substrate P after the exposure processing to a holding table HT provided in the middle of the transport path of the substrate P.
- the holding table HT constitutes a part of the first liquid removal system 100, and temporarily holds the transferred substrate P.
- the holding table HT is arranged inside the cover member 70, and the cover member 70 is provided with openings 71 and 72 for allowing the substrate P to be transported to pass therethrough.
- the openings 71 and 72 are provided with shirt portions 71A and 72A, respectively, which open and close the openings 71 and 72.
- the holding table HT is rotatable while holding the substrate P.
- the substrate P whose orientation has been changed by the rotation of the holding table HT is held by the fourth arm member H4 and transported to the interface section IF.
- the substrate P transported to the interface section IF is passed to the developing device D.
- the developing device D performs a developing process on the transferred substrate P.
- the first to fourth arm members (transfer arm members) HI-H4, the brialignment unit PAL, and the holding table HT are also arranged inside the first chamber device CHI.
- an opening and a shirt that opens and closes the opening are provided at portions facing the interface IF of each of the first and second chamber devices CH1 and CH2. The shutter is released during the transfer operation of the board P to the interface IF.
- the first arm member HI holds the substrate P to which the liquid LQ before the exposure processing is not attached and loads the substrate P on the substrate stage PST.
- the second arm member H2 was subjected to immersion exposure processing.
- the substrate P to which the later liquid LQ may adhere is held and unloaded from the substrate stage PST.
- the first arm member HI for transporting the substrate P to which the liquid LQ does not adhere and the second arm member H2 for transporting the substrate P to which the liquid LQ adheres and may be selectively used. Since the liquid LQ does not adhere to the first arm member HI, it is possible to prevent the liquid LQ from adhering to the back surface of the substrate P loaded on the substrate stage PST. Therefore, even if the substrate holder of the substrate stage PST holds the substrate P by vacuum suction, it is possible to prevent the inconvenience of the liquid LQ from entering the vacuum system such as a vacuum pump through the suction hole of the substrate holder. Can be.
- FIG. 3 is a schematic configuration diagram of the exposure apparatus main body EX.
- the illumination optical system IL illuminates the mask M supported on the mask stage MST with the exposure light EL, and is used to make the illuminance of the exposure light source and the luminous flux emitted from the exposure light source uniform. It has an integrator, a condenser lens that collects the exposure light EL from the optical integrator, a relay lens system, and a variable field stop that sets the illumination area on the mask M by the exposure light EL in a slit shape. A predetermined illumination area on the mask M is illuminated by the illumination optical system IL with exposure light EL having a uniform illuminance distribution.
- Illumination optical system IL power Exposure light EL emitted is, for example, a mercury lamp power emitted ultraviolet rays (g-line, h-line, i-line) and far ultraviolet light (wavelength 248 nm) such as KrF excimer laser light (wavelength 248 nm). Vacuum ultraviolet light such as DUV light, Ar F excimer laser light (wavelength 193 nm) and F laser light (wavelength 157 nm)
- VUV light VUV light
- ArF excimer laser light ArF excimer laser light
- the mask stage MST supports the mask M and is two-dimensionally movable in a plane perpendicular to the optical axis AX of the projection optical system PL, that is, in an XY plane, and is capable of minute rotation in the ⁇ Z direction. It is.
- the mask stage MST is driven by a mask stage driving device MSTD such as a linear motor.
- the mask stage drive MSTD is controlled by the controller CONT.
- a moving mirror 56 is provided on the mask stage MST, and a laser interferometer 57 is provided at a position facing the moving mirror 56.
- the two-dimensional position and rotation angle of the mask stage MST holding the mask M are measured in real time by a laser interferometer, and the measurement results are output to the controller CONT.
- Controller CONT measures laser interferometer By driving the mask stage driving device MSTD based on the result, the mask M supported by the mask stage MST is positioned.
- the projection optical system PL is for projecting and exposing the pattern of the mask M onto the substrate P at a predetermined projection magnification of 13, and is composed of a plurality of optical elements (lenses and mirrors).
- the lens barrel is housed in the PK.
- the projection optical system PL is a reduction system whose projection magnification j8 is, for example, 1Z4 or 1Z5. Note that the projection optical system PL may be either a unity magnification system or an enlargement system.
- an optical element (lens) 2 is exposed from the lens barrel PK on the distal end side (substrate P side) of the projection optical system PL of the present embodiment. This optical element 2 is provided detachably (exchangeable) with respect to the barrel PK.
- the optical element 2 is formed of fluorite. Since fluorite has a high affinity for pure water, the liquid LQ can be brought into close contact with almost the entire tip surface (liquid contact surface) 2a of the optical element 2. That is, in the present embodiment, since the affinity for the liquid contact surface 2a of the optical element 2 is high and the liquid (water) LQ is supplied, the liquid contact surface 2a of the optical element 2 is supplied. And liquid LQ.
- the optical element 2 may be quartz having a high affinity for water. Alternatively, the liquid contact surface 2a of the optical element 2 may be subjected to a hydrophilic (lyophilic) treatment to further enhance the affinity with the liquid LQ.
- the substrate stage PST supports the substrate P.
- the Z stage 51 holds the substrate P via a substrate holder
- the XY stage 52 supports the Z stage 51, and supports the XY stage 52.
- the substrate stage PST is driven by a substrate stage driving device PSTD such as a linear motor.
- the substrate stage driving device PSTD is controlled by the control device CONT.
- the Z stage 51 By driving the Z stage 51, the position of the substrate P held by the Z stage 51 in the Z axis direction (focus position) and the positions in the X and Y directions are controlled.
- the XY stage 52 By driving the XY stage 52, the position of the substrate P in the XY direction (the position in a direction substantially parallel to the image plane of the projection optical system PL) is controlled.
- the Z stage 51 controls the focus position and the tilt angle of the substrate P to adjust the surface of the substrate P to the image plane of the projection optical system PL by the autofocus method and the auto-leveling method
- the XY stage 52 Performs positioning of P in the X and Y axis directions. It goes without saying that the Z stage and the XY stage may be provided integrally.
- a movable mirror 54 is provided on the substrate stage PST (Z stage 51).
- a laser interferometer 55 is provided at a position facing the movable mirror 54.
- the two-dimensional position and rotation angle of the substrate P on the substrate stage PST are measured in real time by the laser interferometer 55, and the measurement result is output to the control device CONT.
- the controller CONT drives the substrate stage driving device PSTD based on the measurement result of the laser interferometer 55 to position the substrate P supported by the substrate stage PST.
- a liquid immersion method is applied to improve the resolution by substantially shortening the exposure wavelength and substantially widen the focal depth. Therefore, at least while the image of the pattern of the mask M is being transferred onto the substrate P, the predetermined liquid LQ is filled between the surface of the substrate P and the tip surface 2a of the optical element 2 of the projection optical system PL. It is. As described above, the optical element 2 is exposed at the distal end side of the projection optical system PL, and the liquid LQ is configured to contact only the optical element 2. This prevents corrosion of the lens barrel PK made of metal and the like. In the present embodiment, pure water is used for the liquid LQ.
- Pure water can be used not only for ArF excimer laser light, but also for exposure light EL such as ultraviolet emission lines (g-line, h-line, i-line) and KrF excimer laser light (wavelength 248 nm). Even when light (DUV light) is used, the exposure light EL can be transmitted.
- exposure light EL such as ultraviolet emission lines (g-line, h-line, i-line) and KrF excimer laser light (wavelength 248 nm). Even when light (DUV light) is used, the exposure light EL can be transmitted.
- the exposure apparatus main body EX includes a liquid supply mechanism 10 for supplying a liquid LQ between the tip surface 2a of the optical element 2 of the projection optical system PL and the substrate P, and a liquid for collecting the liquid LQ on the substrate P. And a recovery mechanism 20.
- the liquid supply mechanism 10 supplies a predetermined liquid LQ to form the liquid immersion area AR2 on the substrate P.
- the liquid supply mechanism 11 can supply the liquid LQ, and the liquid supply apparatus 11 has a supply pipe.
- a supply nozzle 13 having a supply port for supplying the liquid LQ sent from the liquid supply device 11 onto the substrate P.
- the supply nozzle 13 is arranged close to the surface of the substrate P.
- the liquid supply device 11 includes a tank for storing the liquid LQ, a pressure pump, and the like, and supplies the liquid LQ onto the substrate P via the supply pipe 12 and the supply nozzle 13.
- the liquid supply operation of the liquid supply device 11 is controlled by the control device CONT, and the control device CONT can control the amount of liquid supply to the substrate P by the liquid supply device 11 per unit time.
- the liquid supply device 11 has a temperature adjustment mechanism for the liquid LQ, and A liquid LQ having a temperature substantially equal to the temperature in the chamber (for example, 23 ° C.) is supplied onto the substrate P.
- the liquid recovery mechanism 20 recovers the liquid LQ on the substrate P.
- the recovery nozzle 23 is disposed in close proximity without contacting the surface of the substrate P.
- a liquid recovery device 21 connected through the.
- the liquid recovery device 21 includes, for example, a vacuum system (suction device) such as a vacuum pump and a tank for storing the recovered liquid LQ, and recovers the liquid LQ on the substrate P via a recovery nozzle 23 and a recovery pipe 22. .
- the liquid recovery operation of the liquid recovery device 21 is controlled by the control device CONT, and the control device CONT can control the amount of liquid recovered by the liquid recovery device 21 per unit time.
- the substrate P moves in the + X direction (or -X direction) at the speed ⁇ ⁇ ⁇ ( ⁇ is the projection magnification) through the XY stage 52 in synchronization with the movement in the direction (or + X direction) at the speed V. I do.
- the next shot area is moved to the scanning start position by the stepping of the substrate, and thereafter, the exposure processing for each shot area is sequentially performed by the step-and-scan method.
- the liquid LQ is set to flow along the moving direction of the substrate.
- FIG. 4 shows a projection area AR1 of the projection optical system PL, a supply nozzle 13 (13A-13C) for supplying the liquid LQ in the X-axis direction, and a collection nozzle 23 (23A, 23B) for collecting the liquid LQ.
- FIG. 6 is a diagram showing a positional relationship with the stakeholder.
- the shape of the projection area AR1 of the projection optical system PL is a rectangular shape elongated in the Y-axis direction, and three supply areas are provided on the + X direction side so that the projection area AR1 is sandwiched in the X-axis direction.
- Nozzles 13A to 13C are arranged, and two recovery nozzles 23A and 23B are arranged on the X direction side.
- the supply nozzles 13A to 13C are connected to the liquid supply device 11 via the supply pipe 12, and the recovery nozzles 23A and 23B are connected to the liquid recovery device 21 via the recovery pipe 22.
- the supply nozzles 15A to 15C and the recovery nozzles 25A and 25B are arranged in a positional relationship in which the supply nozzles 13A to 13C and the recovery nozzles 23A and 23B are rotated by approximately 180 °.
- the supply nozzles 13A-13C and the collection nozzles 25A, 25B are arranged alternately in the Y-axis direction, and the supply nozzles 15A-15C and the collection nozzles 23A, 23B intersect in the Y-axis direction.
- the supply nozzles 15A to 15C are connected to the liquid supply device 11 via the supply pipe 14, and the recovery nozzles 25A and 25B are connected to the liquid recovery apparatus 21 via the recovery pipe 24.
- the supply pipe 12, the supply nozzles 13A to 13C, the collection pipe 22, and the collection nozzle 23A The liquid LQ is supplied and recovered by the liquid supply device 11 and the liquid recovery device 21 using 23B. That is, when the substrate P moves in the ⁇ X direction, the liquid LQ is supplied onto the substrate P from the liquid supply device 11 via the supply pipe 12 and the supply nozzle 13 (13A-13C), and the collection nozzle 23 The liquid LQ is recovered by the liquid recovery device 21 via the liquid collecting device 21 (23A, 23B) and the recovery pipe 22, and the liquid LQ flows in the X direction so as to fill the space between the projection optical system PL and the substrate P.
- the supply pipe 14 when scanning exposure is performed by moving the substrate P in the scanning direction (+ X direction) indicated by the arrow Xb, the supply pipe 14, the supply nozzles 15A to 15C, the collection pipe 24, and the collection nozzles 25A and 25B are connected.
- the liquid LQ is supplied and collected by the liquid supply device 11 and the liquid recovery device 21.
- the control device CONT uses the liquid supply device 11 and the liquid recovery device 21 to flow the liquid LQ in the same direction as the movement direction of the substrate P along the movement direction of the substrate P.
- the liquid LQ supplied from the liquid supply device 11 via the supply nozzle 13 flows so as to be drawn between the projection optical system PL and the substrate P as the substrate P moves in the X direction. Even if the supply energy of the liquid supply device 11 is small, the liquid LQ can be easily supplied between the projection optical system PL and the substrate P. By switching the direction in which the liquid LQ flows according to the scanning direction, the liquid flows between the projection optical system PL and the substrate P regardless of whether the substrate P is scanned in the + X direction or the X direction. LQ can be satisfied, and high resolution, wide, and depth of focus can be obtained.
- FIG. 5 is a schematic perspective view showing a second arm member H2 for unloading from the substrate stage PST the substrate P to which the liquid LQ after the exposure processing may have adhered.
- the second arm member H2 is configured by a fork-shaped hand, supports the back surface of the substrate P, and transports the substrate P.
- the second arm member H2 has an upper surface (support surface) 30 facing the back surface of the substrate P, and supports the substrate P on the support surface 30.
- a plurality of suction holes 31 which are openings for holding the back surface of the substrate P by suction are provided at substantially regular intervals over a substantially entire area of the support surface 30.
- a vacuum system (suction mechanism) 34 is connected to the suction hole 31 via a flow path 31A formed inside the second arm member H2.
- the vacuum system 34 is constituted by a vacuum pump provided in the exposure apparatus body EX or a vacuum system in a factory where the device manufacturing system SYS is installed.
- the suction mechanism 37 including the vacuum system 34 and the suction holes 31 drives the vacuum system 34 to suction the rear surface of the substrate P through the suction holes 31 in order to support the rear surface of the substrate P.
- a blowing hole 32 as an opening is provided at a position different from the suction hole 31.
- a plurality of spray holes 32 are provided, arranged between each of the plurality of suction holes 31 provided, and provided substantially uniformly over the entire area of the support surface 30 of the second arm member H2.
- a gas supply system 35 is connected to the blowing hole 32 via a flow path 32A formed inside the second arm member H2.
- a gas blowing mechanism (liquid removing mechanism) 36 includes the gas supply system 35 and the blowing holes 32.
- the flow path 32A is provided with a filter for removing foreign substances (dust and oil mist) in the gas blown against the substrate P.
- a predetermined gas is blown out from the blowing hole 32 through the flow path 32A.
- the operation of the gas supply system 35 is controlled by the control device CONT.
- the control device CONT controls the gas supply system 35 so that the amount of gas blown out from the spray hole 32 per unit time can be adjusted.
- Projections 33 as positioning members are provided at a plurality of predetermined positions on the support surface 30 of the second arm member H2.
- the protrusion 33 prevents the substrate P from being displaced or falling from the second arm member H2.
- the substrate P held on the substrate stage PST is subjected to a liquid immersion method. Exposure process. After the liquid immersion exposure processing for each of the plurality of shot areas set on the substrate P is completed, the control device CONT stops the liquid supply mechanism 10 from supplying the liquid onto the substrate P. On the other hand, the control device CONT continues to drive the liquid recovery mechanism 20 for a predetermined time even after the liquid supply operation by the liquid supply mechanism 10 is stopped. Thus, the liquid LQ on the substrate P is sufficiently collected. After the elapse of the predetermined time, the control device CONT stops driving the liquid recovery mechanism 20, and as shown in the schematic diagram of FIG. 6A, the downward force of the projection optical system PL also retreats the substrate stage PST in the horizontal direction.
- a pin member 57 that can move up and down is provided inside the Z stage 51 (substrate holder) of the substrate stage PST.
- the pin member 57 moves up and down with respect to the upper surface of the Z stage 51 by moving up and down.
- the controller CONT raises the pin member 57 to raise the substrate P on the Z stage 51.
- the controller CONT causes the second arm member H2 to enter the lower side (back side) of the board P raised by the pin member 57.
- the control device CONT drives the gas supply system 35 to The gas is blown through the blowing holes 32.
- the gas blowing mechanism (first liquid removing device) 36 including the gas supply system 35 and the blowing holes 32 blows gas on the back surface of the substrate P, so that the liquid LQ temporarily adheres to the back surface of the substrate P.
- the liquid LQ can be removed from the substrate P by flying.
- the cover member 58 is arranged so as to surround the second arm member H2 and the substrate P as shown in FIG. 6A. Is preferred. By doing so, it is possible to prevent the liquid LQ that has been splashed from the back surface of the substrate P from scattering (adhering) to peripheral devices.
- the cover member 58 is composed of a plurality of divided members, and each of the divided members is provided with a drive mechanism. Then, after the substrate stage PST also retreats the downward force of the projection optical system PL, each of the divided members (cover members) comes closer to the substrate stage PST by the drive mechanism.
- the gas blowing mechanism 36 positions the second arm member H2 at a predetermined distance from the back surface of the substrate P, and blows gas to a partial area of the back surface of the substrate P.
- the gas blowing mechanism 36 positions the second arm member H2 at a predetermined distance from the back surface of the substrate P, and blows gas to a partial area of the back surface of the substrate P.
- the gas may be blown over the entire or a part of the rear surface of the substrate P while changing the distance between the second arm member H2 and the rear surface of the substrate P. By doing so, the liquid LQ adhering to the back surface of the substrate P can be removed.
- the gas may be blown to the back surface of the substrate P while moving the substrate stage PST supporting the substrate P via the pin members 57 without moving the second arm member H2.
- the gas may be blown while moving the arm member H2 and the substrate P (substrate stage PST) relatively!
- the gas blowing mechanism 36 adheres to at least a part of the back surface of the substrate P where the support surface 30 of the second arm member H2 is in contact, that is, a support region supported by the second arm member H2. /! Pururu liquid LQ should be removed.
- the driving of the gas supply system 35 is stopped.
- the second arm member H2 approaches the back surface of the substrate P, and the back surface of the substrate P comes into contact with the support surface 30 of the second arm member H2.
- the control device CONT drives the vacuum system 34 constituting the suction mechanism 37. Accordingly, the back surface of the substrate P is suction-held through the suction holes 31 provided in the support surface 30 of the second arm member H2.
- the second arm member H2 Before the second arm member H2 supports the rear surface of the substrate P, the liquid LQ adhering to the rear surface of the substrate P has been removed, so the second arm member H2 may cause the substrate P to be displaced.
- the substrate P to be connected can be satisfactorily held. Since the liquid LQ does not adhere to the back surface of the substrate P, even when the back surface of the substrate P is suction-held by the suction mechanism 37, the liquid LQ may enter the vacuum system 34 through the suction holes 31. Absent. Therefore, inconvenience such as breakage of the vacuum system 34 can be prevented.
- the second arm member H2 holding the substrate P transfers the substrate P to the holding table HT.
- the second arm member H2 supports the front surface of the substrate P or the rear surface of the substrate P.
- Liquid LQ may have adhered to areas other than
- a collecting mechanism 60 for collecting the liquid dropped from the exposed substrate P is disposed. Therefore, even if the substrate P is transported with the liquid LQ adhered thereto, it is possible to prevent the liquid LQ from being adhered and scattered from the substrate P to peripheral devices and members on the transport path.
- FIG. 1 As shown in FIG.
- the collection mechanism 60 includes a gutter member 61 disposed below the transfer path of the second arm member H2, and a liquid LQ collected via the gutter member 61. And a liquid suction device 62 for discharging the liquid.
- the gutter member 61 is provided inside the first chamber device CH1, and the liquid suction device 62 is provided outside the first chamber device CH1.
- the gutter member 61 and the liquid suction I device 62 are connected via a pipe 63, and the pipe 63 is provided with a valve 63A for opening and closing the flow path of the pipe 63.
- the liquid LQ after the exposure is adhered, and the substrate P is transported by the second arm member H2. During the transportation, the liquid LQ may fall from the substrate P. Can be collected by the gutter member 61.
- the liquid suction device 62 sucks the liquid LQ on the gutter member 61 provided inside the chamber device CH1, discharges it to the outside of the chamber device CH1, and discharges the liquid LQ to the gutter member 61 inside the chamber device CH1. Can be prevented from remaining, and the inconvenience of humidity fluctuation (environment fluctuation) inside the chamber device CH1 can be prevented.
- the liquid suction device 62 can continuously perform the suction operation of the liquid LQ collected in the gutter member 61, and intermittently performs the bow suction I operation only at V for a predetermined period. It can also be done. By continuously performing the bow absorption I operation, the liquid LQ does not remain in the gutter member 61, so that the humidity fluctuation inside the chamber device CH1 can be further prevented.
- the suction operation (discharge operation) by the liquid suction device 62 is not performed, and the suction operation is performed only in a period other than the exposure, thereby generating the suction operation. Inconveniences such as vibration affecting exposure accuracy can be prevented.
- FIGS. 7A and 7B are diagrams showing a holding table HT for temporarily holding the substrate P transported by the second arm member H2.
- FIG. 7A is a side view
- FIG. 7B is a plan view.
- the holding table HT constituting the substrate support member has a substantially circular shape in a plan view, and a spray hole 42 as an opening is provided at a substantially central portion of an upper surface (support surface) 40 thereof.
- one spray hole 42 is provided, but it is also possible to provide the spray hole 42 at each of a plurality of arbitrary positions on the support surface 40.
- a plurality of suction holes 41 are provided on the support surface 40 at predetermined intervals so as to surround the spray holes 42.
- a vacuum system 34 is connected to the suction hole 41 via a flow path 41A formed inside the holding table HT.
- the suction mechanism 45 includes the vacuum system 34 and the suction holes 41.
- the gas supply system 35 is connected to the blowing hole 42 via a flow path 42A formed inside the holding table HT.
- a gas blowing mechanism 46 includes the gas supply system 35 and the blowing holes 42.
- the flow path 42A is provided with a filter for removing foreign substances (dust and oil mist) in the gas blown against the substrate P.
- FIG. 8A-B illustrate a first liquid removal system 100.
- the first liquid removal system 100 mainly removes the liquid LQ attached to at least one of the front surface and the back surface of the substrate P.
- FIG. 9 is a view showing an operation of transferring a substrate P to a holding table HT by a second arm member H2.
- the second arm member H2 holding the substrate P enters the inside of the cover member 70 housing the holding table HT through the opening 71.
- the control device CONT drives the shutter 71A to open the opening 71.
- the opening 72 is closed by the shutter 72A.
- the control device CONT drives the gas supply system 35 constituting the gas blowing mechanism 46, and the blowing hole is formed. Gas is blown to the back surface of the substrate P from 42.
- a part of the back surface of the substrate P, which is supported by the second arm member H2 (first support region) extends from the blowing hole 32 provided in the second arm member H2.
- the liquid LQ has already been removed by the blown gas.
- the liquid LQ may adhere to the region of the rear surface of the substrate P which is not supported by the second arm member H2.
- the control device CONT controls the region of the back surface of the substrate P that is supported by the holding table HT (the The liquid LQ adhering to the (2 support area) is blown off and removed by blowing gas from the spray hole 42 to the back surface of the substrate P. That is, the spray hole 42 and its The gas supply system 35 connected to the blowing hole 42 of the substrate P removes the liquid LQ adhering to the area (second support area) held by the holding table HT (second liquid removing device) on the back surface of the substrate P.
- the third liquid removing device is configured.
- the back surface of the substrate P held by the second arm member H2 and the support surface 40 of the holding table HT are separated by a predetermined distance.
- the gas is blown from the spray hole 42 to the back surface of the substrate P.
- the liquid LQ adhering to the back surface of the substrate P is blown off and removed.
- the removed liquid LQ is not scattered around by the cover member 70. Note that, here, when the gas is blown to the back surface of the substrate P, the second arm member H2 holding the substrate P and the holding tape HT having the blowing holes 42 do not move, and the gas blown out from the force blowing holes 42 is a configuration.
- the second arm member H2 holding the substrate P is moved in the X-axis direction (Y-axis direction), and the holding table HT having the spray holes 42 is moved in the Y-axis direction (X-axis direction).
- a gas may be blown to the back surface.
- the substrate P and the spray hole 42 may be relatively rotated and moved.
- a gas may be blown to the back surface of the substrate P while the second arm member H2 is driven to tilt the substrate P.
- the liquid LQ adhering to the back surface of the substrate P is collected at one place by its own weight (gravity action), and falls (removed) from the substrate P and becomes chewy. Further, when the liquid LQ has adhered to the second arm member H2, the liquid LQ can be removed together with the liquid LQ adhered to the substrate P.
- a liquid recovery unit 80 is connected to the cover member 70 via a recovery pipe 81.
- the recovery pipe 81 is provided with a valve 82 for opening and closing the flow path of the recovery pipe 81.
- the liquid LQ blown off from the substrate P is collected by a liquid collecting unit 80 connected to the cover member 70.
- the liquid recovery unit 80 recovers the liquid LQ blown from the substrate P by sucking the gas inside the cover member 70 together with the scattered liquid LQ.
- the liquid recovery unit 80 continuously performs the bowing I operation of the gas inside the cover member 70 and the scattered liquid LQ. This Since the liquid LQ does not remain inside the cover member 70 such as the inner wall and the bottom of the cover member 70, the humidity inside the force bar member 70 does not greatly change. Further, even when the shutter portions 71A and 72A are opened, the moist gas in the cover member 70 does not flow out of the cover member 70.
- the pin members After removing the liquid LQ on the back surface of the substrate P, the pin members (not shown) rise from the holding table HT to support the back surface of the substrate P.
- the pin member provided on the holding table HT has the same configuration as the pin member 57 described with reference to FIG. 6A.
- the second arm member H2 retreats to the outside of the cover member 70, and the opening 71 is closed by the shutter 71A.
- the control device CONT drives the vacuum system 34 to suck and hold the substrate P through the suction holes 41.
- a spray nozzle 103 that constitutes a part of the first liquid removal system 100 is disposed inside the cover member 70, and the spray nozzle 103 is connected to the gas supply system 1 through a flow path 105. 04 is connected.
- the flow path 105 is provided with a filter for removing foreign substances (dust and oil mist) in the gas blown against the substrate P.
- FIG. 9 is a view of the inside of the cover member 70 of FIG. 8B as viewed from above.
- the back surface of the substrate P is supported by the support surface 40 of the holding table HT.
- the spray nozzle 103 includes a nozzle body 103A whose longitudinal direction is the Y-axis direction, and a plurality of nozzle holes 103B arranged in the longitudinal direction of the nozzle body 103A.
- the gas supplied from the gas supply system 104 is blown out from each of the plurality of nozzle holes 103B.
- the substrate P held by the holding table HT and the spray nozzle 103 are provided so as to be relatively movable.
- the spray nozzle 103 scans and moves in the X-axis direction with respect to the substrate P held on the holding table HT.
- the holding table HT holding the substrate P may be moved with respect to the spray nozzle 103, and both the holding table HT and the spray nozzle 103 may be moved. You may let it. Then, the liquid LQ from which the surface force of the substrate P has been skipped is recovered by the liquid recovery unit 80.
- the substrate P from which the liquid LQ on each of the front surface and the back surface has been removed is transported to the developing device D by the fourth arm member H4.
- the control device CONT drives the shutter 72A to open the opening 72, and the fourth opening moves from the opening 72 to the inside of the cover member 70.
- the arm member H4 enters. In parallel with this, the pin member of the holding table HT raises the substrate P, and the fourth arm member H4 holds the rear surface of the raised substrate P. Note that the holding table HT rotates before transferring the substrate P to the fourth arm member H4, and changes the substrate P to a desired orientation. Then, the fourth arm member H4 holding the substrate P unloads the substrate P from the inside of the cover member 70 through the opening 72.
- the liquid removal provided on the second arm member H2 (the holding table HT) is performed before the second arm member H2 (or the holding table HT) supports the back surface of the substrate P.
- the gas By blowing the gas through the blowing holes 32 (42) constituting the mechanism to remove the liquid LQ on the back surface, which is the supported surface of the substrate P, the remaining liquid LQ becomes a lubricating film and the substrate P (2) It is possible to prevent the occurrence of inconveniences such as a positional shift with respect to the arm member H2 (holding table HT) and to support the substrate P in a desired state.
- the second arm member H2 (or the holding table HT) is configured to vacuum-suck and hold the substrate P through the suction holes 31 (41), the vacuum is achieved by removing the liquid LQ on the back surface of the substrate P.
- the inconvenience of liquid LQ entering system 34 can be prevented.
- the substrate P can be maintained in a good state. Can be transported. Then, the liquid LQ adhered to the back surface and the front surface of the substrate P is removed by the first liquid removal system 100, so that the liquid LQ falls from the substrate P on the subsequent transport path of the substrate P and scatters. It is possible to prevent inconveniences such as doing so. Furthermore, by sufficiently removing the liquid LQ on both the front surface and the back surface of the substrate P, it is possible to smoothly perform a predetermined process after the liquid immersion exposure process such as the development process without being affected by the remaining liquid LQ. Can be.
- the liquid LQ adhering to the substrate P is removed by blowing gas onto the substrate P.
- dry gas such as dry air
- the liquid LQ adhering to the substrate P is dried and its removal is promoted.
- a hot air higher than the temperature inside the chamber device CH1 may be blown.
- a gas such as dry air, nitrogen gas, or helium gas can be used as the gas to be blown.
- a part of the liquid removing mechanism provided on the second arm member H2 is configured before the back surface of the substrate P is supported by the second arm member H2.
- Force for removing liquid LQ using blowing hole 32 After removing liquid LQ by blowing gas to the back surface of substrate P from a blowing hole provided on a member separate from second arm member H2, the second The back surface of the substrate P may be supported by the arm member H2.
- the substrate P is provided on another member. The liquid LQ may be removed by blowing gas from the spray hole to the back surface of the substrate P.
- the suction surface 31 and the blowing hole 41 are provided on the support surface 30 of the second arm member H2 at positions different from each other.
- the difference is that the opening provided on the support surface 30 also serves as a suction hole and a spray hole.
- an opening 31 is provided in the support surface 30 of the second arm member H2.
- valves 38A and 39A are controlled by the controller CONT [0063] Before holding the back surface of the substrate P that has been subjected to the liquid immersion exposure processing with the second arm member H2 shown in Fig. 10, the control device CONT drives the valves 38A and 39A to switch the second flow path.
- the first flow path 38 Upon opening 39, the first flow path 38 is closed, and the gas supply system 35 is driven.
- the controller CONT drives the valves 38A and 39A to open the first flow path 38 and close the second flow path 39, The driving of the gas supply system 35 is stopped, and the vacuum system 34 is driven. By doing so, the second arm member H2 can suction-hold the substrate P through the opening (suction hole) 31.
- the liquid LQ attached to the substrate P can be removed, and the substrate P can be adsorbed and held.
- the liquid on the back surface of the substrate P may be sucked, or both may be used in combination.
- FIG. 11 is a diagram showing an example in which a hygroscopic material 90 is provided on the upper surface 30 of the second arm member H2.
- a hygroscopic material 90 for absorbing the liquid LQ is provided on the upper surface 30 of the second arm member H2.
- a sponge-like member ⁇ a porous ceramic or the like can be used as the hygroscopic material 90.
- the hygroscopic material 90 provided on the second arm member H2 is Touch the back of P.
- the liquid LQ adhering to the back surface of the substrate P is absorbed by the hygroscopic material 90 and removed from the back surface of the substrate P.
- the hygroscopic material 90 is brought closer to the substrate P to a position where the hygroscopic material 90 and the substrate P are separated by a predetermined distance. Then, the liquid LQ may be attached to the back surface of the substrate P using capillary action to absorb (remove) the liquid LQ.
- the control device CONT After removing the liquid LQ adhering to the back surface of the substrate P using the hygroscopic material 90, the control device CONT causes the second arm member H2 (hygroscopic material 90) to contact the back surface of the substrate P.
- the vacuum system 34 is connected to the suction hole 31 via the flow path 31A to drive the vacuum system 34.
- Suction hole 31 is moisture absorbing material 9
- the back surface of the substrate P is sucked and held through 0. Even in this case, since the lubricating film of the liquid LQ is not formed between the substrate P and the second arm member H2 (the hygroscopic material 90), the substrate P is displaced with respect to the second arm member H2. It is possible to prevent inconveniences such as arising.
- a gas-liquid separator 80 between the suction hole 31 and the vacuum system 34 in the channel 31A. Since the hygroscopic material 90 contains the liquid LQ, there is a possibility that the liquid LQ contained in the hygroscopic material 90 may enter the vacuum system 34 by driving the vacuum system 34. By separating the sucked liquid component and allowing only the gas component to flow into the vacuum system 34, it is possible to prevent inconvenience such as breakage of the vacuum system 34.
- the force of providing the hygroscopic material 90 on the upper surface 30 of the second arm member H2 is such that the hygroscopic material 90 is supported on another supporting member without providing the hygroscopic material 90 on the second arm member H2.
- the liquid LQ which is supported by the support member and adheres to the back surface of the substrate P with the hygroscopic material 90, absorbs (removes) the liquid LQ,
- the back surface of the substrate P may be supported by the second arm member H2.
- the hygroscopic material 90 may be pressed against the back surface of the substrate P to absorb moisture, It is also possible to absorb the moisture while relatively moving the moisture absorbent 90. Also in this case, moisture can be absorbed using the capillary phenomenon in a slightly separated state without bringing the hygroscopic material 90 into contact with the back surface of the substrate P. By doing so, the rear surface of the substrate P is not damaged. Further, the hygroscopic material 90 can be provided on the upper surface 40 of the holding table HT.
- the first liquid removal system 100 for removing the liquid LQ attached to the surface of the substrate P removes the liquid LQ by blowing gas from the spray nozzle 103 to the surface of the substrate P. By rotating the substrate P, the liquid LQ adhering to the surface of the substrate P can be blown off and removed.
- FIGS. 12A and 12B are diagrams showing a first liquid removal system 100 having a rotation mechanism for rotating the substrate P to fly the liquid LQ attached to the surface of the substrate P.
- the holding table HT of the first liquid removal system 100 includes a holder 121 that holds the center of the back surface of the substrate P, a rotation mechanism 122 that rotates the holder 121 that holds the substrate P, and It has.
- a suction hole is provided on the upper surface of the holder portion 121, and the holder portion 121 suction-holds the central portion of the rear surface of the substrate P.
- the rotation mechanism 122 is constituted by a motor provided inside the holding table HT, and rotates the holder section 121 by rotating the shaft section 123 connected to the holder section 121.
- the shaft portion 123 is provided to be extendable and contractable, and the holder portion 121 is provided so as to be able to move up and down with respect to the upper surface 40 of the holding table HT together with the shaft portion 123.
- the holder portion 121 holding the substrate P rises with respect to the upper surface 40 of the holding table HT, the substrate P separates from the holding table HT and can be rotated by driving the rotation mechanism 122.
- the holder portion 121 is lowered, the substrate P is suction-held on the upper surface 40 of the holding table HT by the suction hole 41.
- the base plate P is formed through a blowing hole 42 formed in the center of the holder 122 as a substrate supporting member of the holding table HT. Is blown against the back surface of the. Thus, the liquid LQ adhering to the back surface of the substrate P is removed.
- the holder section 122 moves up while holding the substrate P by suction, and rotates the substrate P as shown in FIG. 12B. Thereby, the liquid LQ adhering to the surface of the substrate P is blown off and removed.
- the lower part of the cover member 70 shown in FIGS. 12A and 12B is inclined so as to gradually expand as it goes downward.
- the cover member 70 has a shape that gradually expands downward as the force is applied!
- a mechanism for preventing the liquid LQ from rebounding in addition to inclining the inner wall of the cover member 70, a hygroscopic material is attached to the inner wall of the cover member 70, the inner wall is made uneven (corrugated), or a liquid suction device is used.
- the liquid LQ adhering to the surface of the substrate P can be removed by suction and recovery using the liquid suction device 140.
- a recovery nozzle 142 is connected to a liquid suction device 140 via a recovery pipe 141.
- the collection nozzle 142 is arranged close to the surface of the substrate P held on the holding table HT.
- Liquid suction device 140 is configured to include, for example, a vacuum system, and a gas-liquid separator (not shown) for separating liquid and gas collected from the collection nozzle 142 is provided in the middle of the collection pipe 141.
- the collection nozzle 142 When removing the liquid LQ adhering to the surface of the substrate P, the collection nozzle 142 is brought close to the surface of the substrate P, and the liquid suction device 140 is driven, so that the liquid LQ on the surface of the substrate P is collected by the collection nozzle.
- the liquid is collected in a collection tank or the like provided in the liquid suction device 140 via the collection pipe 142 and the collection pipe 141. Also, when removing the liquid LQ on the surface of the substrate P via the collection nozzle 142, the liquid LQ can be removed while relatively moving the collection nozzle 142 and the substrate P.
- the collection nozzle 142 for example, the collection nozzle (1) described with reference to FIG.
- the shape and arrangement of 5) may be adopted.
- a collecting member having an annular collecting port may be employed as the collecting nozzle.
- the liquid LQ attached to the surface of the substrate P may be dried. Good.
- the gas is blown against the back surface of the substrate P by the gas blowing mechanism provided on the second arm member H2, and a part of the back surface of the substrate P supported by the second arm member H2.
- the liquid removing the liquid in the region described above may be removed by the following configuration on the other surface and the liquid on the surface of the substrate P. That is, as shown in FIG. 14, the wall member 160 is provided in the middle of the transport path of the second arm member H2, and the gas blowing nozzles 161 are attached to the upper and lower sides of the wall member 160, respectively.
- the liquid LQ adhered to the substrate P can be removed by blowing gas from the gas blowing nozzle 161 to each of the front surface and the rear surface of the substrate P. Then, the gas can be blown to the entire area of the substrate P by blowing the gas from the gas spray nozzle 161 to the substrate P while transporting and moving the substrate P. Also in this configuration, the liquid attached to the second arm member H2 can be removed together with the liquid LQ attached to the front surface or the back surface of the substrate P.
- the gas when gas is sprayed on the back surface of the substrate P, the gas is blown from the direction perpendicular to the back surface of the substrate P. Spraying may be performed from the direction in which it is inserted (an inclined direction, for example, a direction inclined at 45 degrees).
- the second liquid removal system 220 mainly removes the liquid LQ attached to the surface of the second arm member H2.
- the second liquid removal system 220 is configured to move the substrate P on the movement path of the second arm member H2, specifically, between the substrate stage PST and the holding table HT. It is provided on the transport path. That is, in the transfer system H of the present example, the substrate P after the exposure processing by the second arm member H2 is carried out from the substrate stage PST, the substrate P is transferred to the holding table, and then the second liquid removal system is used. By 220, the liquid adhering to the second arm member H2 is removed.
- FIG. 15 schematically shows a configuration example of the second liquid removal system 220.
- the second liquid removal system 220 includes a gas injection unit (first gas injection unit 221 and second gas injection unit 222) that injects gas to the second arm member H2, and a gas injection unit.
- the apparatus includes a gas supply device 223 that supplies gas to the units 221 and 222, a chamber 224 that accommodates the gas ejection units 221 and 222, and a liquid suction device 225 that suctions the liquid in the chamber 224.
- the first gas injection unit 221 injects gas toward the upper surface of the second arm member H2, and the second gas injection unit 222 injects gas toward the lower surface of the second arm member H2. It does.
- the first gas injection section 221 and the second gas injection section 222 are arranged at a predetermined interval from each other, and the second arm member H2 is inserted between them.
- the first gas injection unit 221 and the second gas injection unit 222 are connected to a gas supply device 223 via a supply pipe 226, respectively.
- the supply pipe 226 is provided with a filter (not shown) for removing impurities (such as particles or oil mist) in the gas.
- dry air is used as the injection gas.
- other gases such as nitrogen gas and helium gas may be used as the injection gas.
- the liquid suction device 225 generates a vacuum pressure to suck the liquid in the chamber 224, and is connected to the chamber 224 via a pipe 225a.
- the pipe 225a is provided with a valve 225b that can be opened and closed.
- the chamber 224 is provided with an opening 227 for inserting and removing the second arm member H2.
- the opening 227 is provided with a shirt 228. Further, outside the chamber 224 and in the vicinity of the opening 227 of the chamber 224, a liquid detector 229 for detecting whether or not the liquid is applied to the second arm member H2 to detect a force is provided. .
- the second arm member H2 When the liquid detector 229 detects that liquid is attached to the second arm member H2, the second arm member H2 is inserted into the chamber 224 and attached to the second arm member H2. The liquid that has adhered is removed, and if the liquid has not adhered or the liquid within the allowable range has adhered, the second arm member H2 is not inserted into the chamber 224, and the substrate stage PST is moved from the substrate stage PST to the substrate P. Out.
- liquid detector 229 in this example, an image sensor such as a CCD camera is used.
- Image information captured by the image sensor is sent to the control device CONT (see FIG. 1).
- the control device CONT stores image information of the second arm member H2 to which the liquid has not adhered.
- the control device CONT determines, for example, whether or not the liquid is attached to the second arm member H2 by comparing the image information stored in advance with the current image information. Note that this determination is not limited to automatic determination, and the image information captured by the image sensor is displayed on a monitor, and based on the displayed state of the second arm member H2, the operator applies the liquid to the second arm member H2. It may be determined whether or not is adhered.
- the second arm member H2 can be inclined by a predetermined angle when determining whether or not the liquid is attached to the second arm member H2.
- the liquid detector 229 is not limited to one using an image sensor, but has a light projector and a light receiver, irradiates the second arm member H2 with light, and passes through the second arm member H2 via the liquid.
- the liquid adheres to the second arm member H2 based on the difference between the intensity of the reflected light or scattered light from the surface of the second arm member H2 and the intensity of the reflected light or scattered light from the surface of the second arm member H2. Difference between the dielectric constant when liquid is attached to the surface of the second arm member H2 and the dielectric constant when liquid is not attached to the surface of the second arm member H2.
- Other detectors may be used as long as they can detect the liquid attached to the second arm member H2, such as those that detect force.
- the liquid detector 129 is not limited to the non-contact type, and may be a contact type. When a contact-type liquid detector is used, it is preferable to take sufficient clean measures so that impurities do not adhere to the second arm member H2 via the detector.
- the controller CONT inserts the second arm member H2 into the chamber 224, and sends the gas from the gas supply device 223. The gas is injected toward the second arm member H2 via the injection units 221 and 222.
- the liquid adhering to the surface of the second arm member H2 is released by the injected gas. It is blown off, thereby removing the liquid from the second arm member H2. Further, the liquid removed from the second arm member H2 is collected by the liquid suction device 225 via the pipe 225a.
- the exposure apparatus body EX performs the exposure processing based on the liquid immersion method.
- the liquid attached to the substrate P during the exposure processing is removed from the substrate P by the first liquid removal system 100.
- the liquid is removed from the second arm member H2 by the second liquid removal system 220. Since the second liquid removal system 220 is disposed on the transport path of the second arm member H2, a decrease in throughput, which reduces the waste of the movement of the second arm member H2 during the liquid removal, is suppressed.
- the substrate P that has been subjected to the exposure processing based on the liquid immersion method can be satisfactorily transferred, and a stable processing operation can be performed.
- the removal of the liquid adhering to the second arm member H2 is performed at least before the substrate P is unloaded from the substrate stage PST.
- the liquid may be removed from the second arm member H2 immediately after the substrate unloading operation by the second arm member H2 is completed. That is, when the second arm member H2 to which the liquid adheres moves, the liquid may scatter, which may cause an operation failure or an environmental change. Therefore, the first liquid removal system on substrate P After the transfer to the stem 100 is completed, the liquid detector 229 checks whether or not liquid has adhered to the second arm member H2, and if liquid has adhered to the second arm member H2, the second By using the liquid removal system 220 to remove the liquid attached to the second arm member H2, the occurrence of such a problem can be suppressed.
- the first liquid removing system 100 described above can be omitted.
- the liquid is removed from the second arm member H2 only when necessary based on the detection result of the liquid detector 229, there is an advantage that a decrease in throughput due to liquid removal is suppressed. are doing. If there is a high possibility that the liquid is attached to the second arm member H2, the liquid detection operation by the liquid detector 129 may be omitted, and the liquid may always be removed from the second arm member H2! ,.
- FIG. 16 and FIG. 17 show other embodiments of the second liquid removal system 220.
- FIG. 16 and FIG. 17 show other embodiments of the second liquid removal system 220.
- the second liquid removal system 220 of Fig. 16 is connected to the liquid suction device 230 and the liquid suction device 230 via a pipe 231 and is attached to each of the front and back surfaces of the second arm member H2.
- the first and second suction units 232 and 233 for sucking the liquids contained therein, and a drying device 235 for drying the inside of the chamber 234 are provided.
- the first and second suction units 232 and 233 are provided to be relatively movable in the X-axis direction with respect to the second arm member H2. 15, an opening 236 through which the second arm member H2 is inserted and removed is provided in the chamber 234, and a shirt 237 is disposed in the opening 236.
- the chamber 234 is Dry gas (dry air) is supplied to the inside as appropriate.
- the supplied dry air may be room temperature or hot air controlled to a predetermined temperature.
- the liquid suction device 230 or the suction device is used.
- the components 232 and 233 may be omitted.
- the drying method is not limited to the gas supply method, and other drying methods such as a decompression method and an infrared irradiation method may be used!
- the second liquid removal system 220 in Fig. 17 includes a liquid suction device 240, moisture absorbents 242 and 243 connected to the liquid suction device 240 via a pipe 241 and moisture absorbents 242 and 243 in the Z direction. And a driving device 244 for moving.
- a hygroscopic materials 242 and 243 for example, a sponge-like member ⁇ porous ceramic or the like is used.
- the second liquid removing system 220 shown in FIG. 17 when removing the liquid from the second arm member H2, the hygroscopic materials 242 and 243 are brought into close contact with the second arm member H2 by the driving device 244. In this state, when the liquid suction device 240 is driven to collect the liquid absorbed by the hygroscopic materials 242 and 243, the liquid attached to the second arm member H2 is removed. In the liquid removal using the hygroscopic materials 242 and 243, scattering of the liquid is small. Therefore, it is possible to avoid arranging one chamber (housing) and to achieve compactness of the apparatus. In the case where the moisture removal by the moisture absorbents 242 and 243 cannot remove the liquid from the second arm member H2 promptly, the second arm member H2 may be combined with a drying device as shown in FIG.
- the hygroscopic material 90 shown in Fig. 11 may have a function of removing the liquid for the arm.
- the liquid LQ adheres to the second arm member H2 moisture can be absorbed by the hygroscopic material 90. Then, the liquid absorbed by the hygroscopic material 90 via the vacuum system 34 for holding the substrate may be collected. According to this configuration, since the hygroscopic material 90 forms a part of the second arm member H2, the size of the device can be reduced. Further, the liquid can be removed from the second arm member H2 at an arbitrary position and at an arbitrary timing. For example, it is possible to remove the liquid from the second arm member H2 while the second arm member H2 is moving. Therefore, the throughput is improved.
- FIG. 18 shows another embodiment of the transfer system H including the second liquid removal system 220.
- the transfer system H includes a cleaning device 260 for cleaning the second arm member H2, in addition to the second liquid removal system 220 for removing the liquid attached to the second arm member H2.
- the second liquid removal system 220 uses the gas injection type shown in FIG. 15 as the second liquid removal system 220.
- the configuration example of the misalignment described in the present embodiment may be applied.
- the cleaning device 260 includes a cleaning liquid supply device 261 that supplies a cleaning liquid, and liquid ejecting units 263 and 264 that are connected to the cleaning liquid supply device 261 via a pipe 262 and that eject the cleaning liquid toward the second arm member H2. And a chamber 265 for accommodating the liquid ejecting units 263 and 264.
- Various chemicals other than pure water are appropriately used as the cleaning liquid.
- the liquid ejecting units 263 and 264 are, for example, components having a plurality of ejecting nozzles arranged on a header connected to the cleaning liquid supply device 261.
- the second liquid removal system 220 and the cleaning device 260 are arranged side by side in the vertical direction! /, But may be arranged in the horizontal direction. Note that the cleaning liquid in the chamber 265 is appropriately collected through a collection pipe (not shown).
- the transfer system H shown in FIG. 18 the substrate P after the exposure processing by the second arm member H2 is carried out of the substrate stage PST, the substrate P is transferred to the holding table HT, and then the second arm member H2 is cleaned. After washing in the device 260, the liquid attached to the second arm member H2 is removed by the second liquid removal system 220. Therefore, in the transfer system H, the second arm member H2 is cleaned, so that the adhesion of impurities to the substrate before the exposure processing is suppressed.
- the method of cleaning the second arm member H2 is not limited to the method of spraying the cleaning liquid, but the method of immersing the second arm member H2 in the cleaning liquid stored in the tank, or the ultrasonic cleaning. Other methods such as a method may be used. Further, the method is not limited to the method using a cleaning liquid, and for example, a so-called light cleaning method using light (eg, UV light) or ozone may be used.
- the cleaning of the second arm member H2 may not be performed each time the substrate P is unloaded, but may be performed each time a predetermined number of substrates P are unloaded.
- a foreign matter detector for detecting foreign matter (impurities) on the front surface (including the back surface and side surface) of the second arm member H2 is provided separately from the liquid detector 229.
- the presence or absence of foreign matter adhered to the arm member H2 may be confirmed, and if the foreign matter adheres, the second arm member H2 may be cleaned using the cleaning device 260.
- pure water is used as the liquid LQ used in the exposure processing.
- Pure water can be easily obtained in large quantities at semiconductor manufacturing plants and the like, and has the advantage that it does not adversely affect the photoresist on the substrate P, optical elements (lenses), and the like.
- pure water has no adverse effect on the environment and has a very low impurity content, and therefore has the effect of cleaning the surface of the substrate P and the surface of the optical element provided on the tip end surface of the projection optical system PL. Can be expected.
- the liquid LQ in the present embodiment is composed of pure water.
- Pure water has the advantage that it can be easily obtained in large quantities at a semiconductor manufacturing plant or the like, and that it has no adverse effect on the photoresist on the substrate P, optical elements (lenses), and the like.
- pure water has no adverse effect on the environment and has an extremely low impurity content, so it is expected to have the effect of cleaning the surface of the substrate P and the surface of the optical element provided on the front end surface of the projection optical system PL. it can.
- the refractive index n of pure water (water) with respect to the exposure light EL having a wavelength of about 193 nm is said to be approximately 1.44, and ArF excimer laser light (wavelength 193 nm) is used as the light source of the exposure light EL. If used, the wavelength is shortened to lZn, that is, about 134 nm on the substrate P, and high resolution is obtained. Furthermore, since the depth of focus is expanded to about n times, that is, about 1.44 times as compared to that in the air, if it is sufficient to secure the same depth of focus as that used in the air, the projection optical system PL Can further increase the numerical aperture, and in this regard, the resolution is also improved.
- the force projection in which the lens 2 is attached to the tip of the projection optical system PL may be an optical plate used for adjusting the optical characteristics of the projection optical system PL, for example, aberrations (spherical aberration, coma, etc.).
- a plane-parallel plate that can transmit the exposure light EL may be used.
- the space between the projection optical system PL and the surface of the substrate P is configured to be filled with the liquid LQ.
- a cover glass having a plane-parallel plate force is attached to the surface of the substrate P. It may be configured to fill the liquid LQ in the closed state.
- the liquid LQ of the present embodiment may be a liquid other than power water, which is water.
- water for example
- the light source of the exposure light EL is an F laser, this F laser light does not transmit water,
- liquid LQ for example, perfluoropolyether (PFPE) or
- liquid LQ there is also a liquid LQ which is transparent to the exposure light EL and has a refractive index as high as possible and which is stable to the photoresist applied to the surface of the substrate P or the substrate P (for example, Cedar). Oil) can also be used.
- the substrate P in each of the above embodiments is not limited to a semiconductor wafer for manufacturing a semiconductor device, but may be a glass substrate for a display device, a ceramic wafer for a thin-film magnetic head, or a mask or a mask used in an exposure apparatus.
- a reticle master synthetic quartz, silicon wafer, etc. is applied.
- a force that employs an exposure apparatus that locally fills the space between the projection optical system PL and the substrate P with a liquid is disclosed in Japanese Patent Application Laid-Open No. 6-124873.
- the exposure apparatus (exposure apparatus main body) EX includes a step-and-scan type scanning exposure apparatus (scanning and scanning) for scanning and exposing the pattern of the mask M by synchronously moving the mask M and the substrate P. Then, with the mask M and the substrate P still, The present invention can also be applied to a step-and-repeat type projection exposure apparatus (stepper) that performs batch exposure and sequentially moves the substrate P stepwise. In addition, the present invention can be applied to an exposure apparatus of a step 'and' stitch method in which at least two patterns are partially overlapped and transferred on the substrate P.
- the type of the exposure apparatus EX is not limited to an exposure apparatus for manufacturing a semiconductor element for exposing a semiconductor element pattern onto a substrate P, but may be an exposure apparatus for manufacturing a liquid crystal display element or a display, a thin film magnetic head, or the like. It can be widely applied to an image pickup device (CCD), an exposure apparatus for manufacturing a reticle or a mask, and the like.
- CCD image pickup device
- the exposure apparatus EX of the embodiment of the present application is capable of performing various mechanical subsystems including each component listed in the claims of the present application with predetermined mechanical accuracy, electrical accuracy, and optical accuracy. Manufactured by assembling to keep. Before and after this assembly, adjustments to achieve optical accuracy for various optical systems, adjustments to achieve mechanical accuracy for various mechanical systems, and various electrical For, adjustments are made to achieve electrical accuracy.
- Various subsystems The process of assembling into the exposure apparatus includes mechanical connection, electrical circuit wiring connection, and pneumatic circuit piping connection between the various subsystems. Needless to say, there is an assembling process for each subsystem before the assembling process into the exposure apparatus. When the process of assembling the various subsystems into the exposure apparatus is completed, comprehensive adjustment is performed, and various precisions of the entire exposure apparatus are secured. It is desirable to manufacture the exposure apparatus in a clean room in which the temperature, cleanliness, etc. are controlled.
- a micro device such as a semiconductor device includes a step 301 for designing the function and performance of the micro device, a step 302 for manufacturing a mask (reticle) based on the design step, Step 303 of manufacturing a substrate as a base material, exposure processing step 304 of exposing a mask pattern to the substrate by the exposure apparatus EX of the above-described embodiment, and device assembly step (including dicing step, bonding step, and package step) 305 It is manufactured through an inspection step 306 and the like.
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- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
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- Plasma & Fusion (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Cleaning By Liquid Or Steam (AREA)
- Cleaning Or Drying Semiconductors (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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JP2005514618A JP4335213B2 (ja) | 2003-10-08 | 2004-10-08 | 基板搬送装置、露光装置、デバイス製造方法 |
EP04792214A EP1672682A4 (en) | 2003-10-08 | 2004-10-08 | SUBSTRATE TRANSPORT DEVICE AND METHOD, EXPOSURE DEVICE AND METHOD AND COMPONENT MANUFACTURING METHOD |
US11/398,603 US7898645B2 (en) | 2003-10-08 | 2006-04-06 | Substrate transport apparatus and method, exposure apparatus and exposure method, and device fabricating method |
US11/592,222 US20070052942A1 (en) | 2003-10-08 | 2006-11-03 | Substrate transport apparatus and method, exposure apparatus and exposure method, and device fabricating method |
US12/929,591 US8755025B2 (en) | 2003-10-08 | 2011-02-02 | Substrate transport apparatus and method, exposure apparatus and exposure method, and device fabricating method |
Applications Claiming Priority (4)
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JP2003-349549 | 2003-10-08 | ||
JP2003-349552 | 2003-10-08 | ||
JP2003349552 | 2003-10-08 | ||
JP2003349549 | 2003-10-08 |
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US11/398,603 Continuation US7898645B2 (en) | 2003-10-08 | 2006-04-06 | Substrate transport apparatus and method, exposure apparatus and exposure method, and device fabricating method |
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WO2005036623A1 true WO2005036623A1 (ja) | 2005-04-21 |
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PCT/JP2004/014945 WO2005036623A1 (ja) | 2003-10-08 | 2004-10-08 | 基板搬送装置及び基板搬送方法、露光装置及び露光方法、デバイス製造方法 |
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US (3) | US7898645B2 (ja) |
EP (1) | EP1672682A4 (ja) |
JP (2) | JP4335213B2 (ja) |
KR (1) | KR20060126949A (ja) |
WO (1) | WO2005036623A1 (ja) |
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Also Published As
Publication number | Publication date |
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EP1672682A4 (en) | 2008-10-15 |
JP4335213B2 (ja) | 2009-09-30 |
US7898645B2 (en) | 2011-03-01 |
JP2009094541A (ja) | 2009-04-30 |
US20060256316A1 (en) | 2006-11-16 |
EP1672682A1 (en) | 2006-06-21 |
JPWO2005036623A1 (ja) | 2007-11-22 |
US20070052942A1 (en) | 2007-03-08 |
US20110122393A1 (en) | 2011-05-26 |
JP4727734B2 (ja) | 2011-07-20 |
KR20060126949A (ko) | 2006-12-11 |
US8755025B2 (en) | 2014-06-17 |
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