WO2010150741A1 - インプリントシステム、インプリント方法及びコンピュータ記憶媒体 - Google Patents
インプリントシステム、インプリント方法及びコンピュータ記憶媒体 Download PDFInfo
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- WO2010150741A1 WO2010150741A1 PCT/JP2010/060464 JP2010060464W WO2010150741A1 WO 2010150741 A1 WO2010150741 A1 WO 2010150741A1 JP 2010060464 W JP2010060464 W JP 2010060464W WO 2010150741 A1 WO2010150741 A1 WO 2010150741A1
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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
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67161—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers
- H01L21/67173—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the layout of the process chambers in-line arrangement
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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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C33/00—Moulds or cores; Details thereof or accessories therefor
- B29C33/56—Coatings, e.g. enameled or galvanised; Releasing, lubricating or separating agents
- B29C33/58—Applying the releasing agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y10/00—Nanotechnology for information processing, storage or transmission, e.g. quantum computing or single electron logic
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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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
- G03F7/0002—Lithographic processes using patterning methods other than those involving the exposure to radiation, e.g. by stamping
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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
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67207—Apparatus for manufacturing or treating in a plurality of work-stations comprising a chamber adapted to a particular process
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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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67739—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 conveying, e.g. between different workstations into and out of processing chamber
- H01L21/67745—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 conveying, e.g. between different workstations into and out of processing chamber characterized by movements or sequence of movements of transfer devices
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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
- H01L21/677—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 conveying, e.g. between different workstations
- H01L21/67739—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 conveying, e.g. between different workstations into and out of processing chamber
- H01L21/6776—Continuous loading and unloading into and out of a processing chamber, e.g. transporting belts within processing chambers
Definitions
- the present invention relates to an imprint system for forming a predetermined pattern on a coating film on a substrate, an imprint method using the imprint system, and a computer storage medium.
- a semiconductor wafer (hereinafter referred to as “wafer”) is subjected to a photolithography process to form a predetermined resist pattern on the wafer.
- the resist pattern When forming the above-described resist pattern, the resist pattern is required to be miniaturized in order to further increase the integration of the semiconductor device.
- the limit of miniaturization in the photolithography process is about the wavelength of light used for the exposure process. For this reason, it has been advancing to shorten the wavelength of exposure light.
- there are technical and cost limitations to shortening the wavelength of the exposure light source and it is difficult to form a fine resist pattern on the order of several nanometers, for example, only by the method of advancing the wavelength of light. is there.
- the imprint method described above is repeated, that is, if a resist pattern is formed on a plurality of wafers using a single template, the pattern cannot be transferred correctly from a certain point in time.
- a release agent having a liquid repellency with respect to the resist is usually formed on the surface of the template. This is because the release agent deteriorates. For this reason, it is necessary to exchange a template regularly.
- the present invention has been made in view of such points, and an object of the present invention is to efficiently exchange templates and continuously form a predetermined pattern on a plurality of substrates.
- the present invention provides an imprint system for forming a predetermined pattern on a coating film on a substrate, wherein the coating film on the substrate is formed using a template having a transfer pattern formed on the surface thereof.
- An imprint unit that transfers the transfer pattern to the coating film and forms a predetermined pattern on the coating film, a processing station that is connected to the imprint unit and performs a predetermined process on the template, and is connected to the processing station,
- a template loading / unloading station capable of holding the template and loading / unloading the template to / from the processing station; and a conveyance line that passes through the imprint unit and conveys the template between the imprint unit and the processing station.
- the imprint unit includes a substrate holding unit that holds the substrate, a template holding unit that holds a template conveyed by the conveyance line, and a moving mechanism that moves the template holding unit up and down.
- the part and the template holding part are arranged so that the substrate held by the board holding part and the template held by the template holding part face each other.
- the imprint system of the present invention includes the substrate carry-in / out station and the template carry-in / out station, and can continuously carry the template between the processing station and the imprint unit by the carrying line. After a predetermined pattern is formed on the substrate using the template, the template can be continuously replaced with another template. Thus, the template in the imprint unit can be exchanged continuously and efficiently even before the template deteriorates or when different patterns are formed on a plurality of substrates. Therefore, a predetermined pattern can be continuously formed on a plurality of substrates.
- an imprint unit that uses a template having a transfer pattern formed on a surface thereof to transfer the transfer pattern to a coating film formed on a substrate and to form a predetermined pattern on the coating film.
- a processing station that is connected to the imprint unit and performs predetermined processing on the template; and a template loading unit that is connected to the processing station and that can hold a plurality of templates and that carries the template in and out of the processing station.
- the present invention provides a readable computer storage medium storing a program that operates on a computer of a control unit that controls the imprint system so that the imprint method is executed by the imprint system. is there.
- the template can be exchanged efficiently, and a predetermined pattern can be continuously formed on a plurality of substrates.
- FIG. 13 shows a state in which the release agent is applied
- FIG. 13C shows a state in which the release agent on the template is baked
- FIG. 13C shows a state in which the release agent on the template is baked
- FIG. 13D shows a state in which the release agent is formed on the template.
- FIG. 13 (e) shows a state in which a resist solution is applied on the template
- FIG. 13 (f) shows a state in which the resist film on the template is photopolymerized
- FIG. 13 (g) shows the state on the wafer.
- FIG. 13 (h) shows a state in which the remaining film on the wafer has been removed. It is a top view which shows the outline of a structure of the imprint system concerning other embodiment. It is a top view which shows the outline of a structure of the imprint system concerning other embodiment. It is a top view which shows the outline of a structure of the imprint system concerning other embodiment.
- FIG.25 (a) shows a mode that the surface of the template was wash
- FIG. 1 is a plan view showing an outline of a configuration of an imprint system 1 according to the present embodiment.
- 2 and 3 are side views illustrating the outline of the configuration of the imprint system 1.
- a template T having a rectangular parallelepiped shape and having a predetermined transfer pattern C formed on the surface is used as shown in FIG.
- the transfer pattern C means the side of the template T which is formed with the surface T 1, the surface T 1 opposite to the surface of the backside T 2.
- a transparent material that can transmit visible light, near ultraviolet light, ultraviolet light, or the like, such as glass, is used.
- Imprint system 1 includes a plurality as shown in FIG. 1, for example, five of the template T or transferring, between the outside and the imprint system 1 in the cassette unit, carrying out a template T the template cassette C T
- a template loading / unloading station 2 a processing station 3 including a plurality of processing units for performing predetermined processing on the template T, and an imprint unit 4 for forming a resist pattern on a wafer W as a substrate using the template T.
- Wafer loading / unloading as a substrate loading / unloading station for loading / unloading a plurality of, for example, 25 wafers W between the outside and the imprint system 1 in cassette units, and loading / unloading wafers W into / from the wafer cassette CW .
- the station 5 is integrally connected.
- the template loading / unloading station 2 is provided with a cassette mounting table 10.
- the cassette mounting table 10 can mount a plurality of template cassettes CT in a line in the X direction (vertical direction in FIG. 1). That is, the template carry-in / out station 2 is configured to be capable of holding a plurality of templates T.
- the template carry-in / out station 2 is provided with a template carrier 12 that can move on a conveyance path 11 extending in the X direction.
- Template carrier 12 is also movable in the vertical direction and the vertical around (theta direction), the imprint unit 4 side, that can transfer the template T with the template cassette C T and the processing station 3.
- the processing station 3 and the imprint unit 4 are provided with a transport line A for transporting the template T between the processing station 3 and the imprint unit 4.
- the transport line A is, for example, a first transport line A1 that transports the template T transported from the template transport-in / out station 2 to the imprint unit, and a second transport-in that transports the template T transported from the imprint unit into the transport-in / out station 2. It has a transport line A2.
- a plurality of transport rollers 60 and 61 to be described later are arranged side by side on the first transport line A1 and the second transport line A2, and the template T can be transported by roller transport (roller conveyor system).
- the transfer line A1 is arranged on the front side of the processing station 3 (X direction negative direction side in FIG. 1), and the transfer line A2 is arranged on the back side of the processing station 3 (X direction positive direction side in FIG. 1). Yes.
- a release agent forming unit 26 that forms a release agent on the template T that is transferred toward the imprint unit 4 is provided in the transfer line A1 in the processing station 3.
- the release agent forming section 26 includes a transition unit 20 for transferring the template T in order from the template loading / unloading station 2 side to the imprint unit 4 side, and a release agent on the template T.
- the template T liquid release agent release agent coating unit for coating the 22, the heating unit 23 for heating the template T, the template T A temperature adjusting unit 24 for adjusting the temperature and a rinsing unit 25 for rinsing the release agent on the template T are arranged in a straight line.
- a template cleaning unit 27 that cleans the surface of the template T by removing the release agent on the template T transported from the imprint unit 4 is provided in the transport line A2 in the processing station 3.
- the template cleaning unit 27, in order for the station 2 side exits template carried from the imprint unit 4 side, the cleaning unit 31 after cleaning the surface T 1 of the template T after use, the surface T 1 of the template T after washing Inspection units 32 and transition units 33 to be inspected are linearly arranged in a line.
- post-cleaning unit 31 may be the rear surface T 2 also further washed template T, the inspection unit 32 may be further examined also the rear surface T 2 of the template T.
- the wafer loading / unloading station 5 is provided with a cassette mounting table 50.
- the cassette mounting table 50 can mount a plurality of wafer cassettes CW in a row in the X direction (vertical direction in FIG. 1). That is, the wafer carry-in / out station 5 is configured to be capable of holding a plurality of wafers W.
- the wafer carry-in / out station 5 is provided with a wafer carrier 52 that can move on a conveyance path 51 that extends in the X direction.
- the wafer transfer body 52 is also movable in the vertical direction and around the vertical direction ( ⁇ direction), and can transfer the wafer W between the wafer cassette CW and the imprint unit 4.
- the wafer carry-in / out station 5 is further provided with an alignment unit 53 for adjusting the orientation of the wafer W.
- the alignment unit 53 for example, the orientation of the wafer W is adjusted based on the position of the notch portion of the wafer W.
- the wafer carry-in / out station 5 is provided with a reversing unit 54 for reversing the front and back surfaces of the wafer W.
- the imprint unit 4 includes a casing 55 in which a loading / unloading port E1 for the template T and a loading / unloading port E2 for the wafer W are formed on the side surfaces.
- a plurality of transport rollers 60 and 61 are arranged in the casing 55.
- the conveyance roller 60 is arranged, for example, in a substantially L shape so that the template T conveyed from the loading / unloading port E1 through the conveyance line A1 is conveyed above a template holding unit 62 described later.
- the conveyance roller 61 is arranged, for example, in a substantially L shape so that the template conveyed into the casing 55 is unloaded from the loading / unloading port E1 and conveyed to the template loading / unloading station 2 through the conveyance line A2.
- the transport rollers 60 and 61 are arranged so as to form a substantially U-shape in the imprint unit, and transport the template T unloaded from the template loading / unloading station 2 between the processing station 3 and the imprint unit 4. It can be transferred again to the template loading / unloading station 2.
- Template T the surface T 1 is to face upwards, i.e. back surface T 2 is placed on the conveying rollers 60 and 61 so as to be supported on the upper surface of the conveying roller 60, 61.
- Each of the transport rollers 60 and 61 is configured to be rotatable about a central axis as a rotation axis.
- a drive mechanism (not shown) having a built-in motor, for example, at a predetermined pitch so that at least one of the transport rollers 60 and 61 in contact with the template T can transport the template T. ) Is provided.
- transport guides (not shown) that support the side surfaces of the template T are provided, and on the transport rollers 60 and 61 on which the template T is arranged in a substantially U shape. , The template T is prevented from falling from the U-shaped portion.
- a template holder 62 that holds the lower surface of the template T is provided on the bottom surface of the casing 55.
- Template holding unit 62 a predetermined position of the rear surface T 2 of the template T has a chuck 63 for holding suction.
- the chuck 63 is movable in the vertical direction by a moving mechanism 64 provided below the chuck.
- the template holding unit 62 has a light source 65 provided below the template T held by the chuck 63.
- the light source 65 emits light such as visible light, near ultraviolet light, and ultraviolet light.
- the conveyance roller 60 corresponding to the upper side of the light source 65 has a shape in which the position corresponding to the upper side of the light source 65 is cut so as not to block the light from the light source 65 as shown in FIG. Light from 65 passes through the template T and is irradiated upward.
- a rail 70 extending along the Y direction (left and right direction in FIG. 5) is provided on the positive side in the X direction (upward direction in FIG. 5) in the casing 55.
- An arm 71 is attached to the rail 70.
- the arm 71 supports a resist solution nozzle 72 as a coating solution supply unit that supplies a resist solution as a coating solution onto the template T.
- the resist solution nozzle 72 has, for example, an elongated shape along the X direction that is the same as or longer than the dimension of one side of the template T.
- an ink jet type nozzle is used as the resist solution nozzle 72, and a plurality of supply ports (not shown) formed in a line along the longitudinal direction are formed below the resist solution nozzle 72.
- the resist solution nozzle 72 can strictly control the resist solution supply timing, the resist solution supply amount, and the like.
- the arm 71 is movable on the rail 70 by a nozzle driving unit 73.
- the resist solution nozzle 72 can move from the standby portion 74 installed on the outside in the Y direction positive direction inside the casing 55 to above the template T on the transport rollers 60 and 61, and the surface of the template T. Move up in the Y direction.
- the arm 71 can be moved up and down by a nozzle driving unit 73 and the height of the resist solution nozzle 72 can be adjusted.
- a wafer holder 80 is provided on the ceiling surface of the casing 55 and above the transfer rollers 60 and 61 as shown in FIG.
- the wafer holding unit 80 holds the back surface of the wafer W by suction so that the processing surface of the wafer W faces downward. That is, the wafer holding unit 80 and the conveyance roller 60 are arranged so that the wafer W held by the wafer holding unit 80 and the template T placed on the conveyance roller 60 face each other.
- the wafer holding unit 80 can be moved in the horizontal direction by a moving mechanism 81 provided above the wafer holding unit 80.
- the plurality of transport rollers 60 are also arranged along the transport line A ⁇ b> 1 in the transport line A ⁇ b> 1 as shown in FIGS. 7 and 8.
- a plurality of transport rollers 61 are also arranged along the transport line A ⁇ b> 2 along the transport line A ⁇ b> 2 in the transport line A ⁇ b> 2.
- Each of the transport rollers 60 and 61 is configured to be rotatable about a central axis extending in a direction perpendicular to the direction along the transport lines A1 and A2. Then, the template T is transported between the transition units 20 and 33 and the imprint unit 4 on the transport rollers 60 and 61.
- the transition unit 20 of the transport line A1 has lifting pins 110 for supporting the template T from below and lifting it.
- the elevating pin 110 can be moved up and down by an elevating drive unit 111 provided below the conveying roller 60.
- the raising / lowering pin 110 is arrange
- the template T is placed on the transport roller 60 from the template transport body 12 by the lift pins 110.
- the configuration of the transition unit 33 in the transport line A2 is the same as the configuration of the transition unit 20 described above, and thus the description thereof is omitted.
- each processing unit 21 to 25 of the above-described transport line A1 As shown in FIG. 8, a casing 120 is provided on the transport line A1.
- the casing 120 is partitioned by a plurality of partition walls 121, and the partitioned spaces constitute processing units 21 to 25, respectively.
- a loading / unloading port 122 for the template T is formed at a height corresponding to the conveyance roller 60.
- Each loading / unloading port 122 may be provided with an open / close shutter (not shown) so that the inside of each processing unit 21 to 25 can be sealed.
- the pre-cleaning unit 21 has an ultraviolet irradiation unit 130 that irradiates the template T with ultraviolet rays.
- the ultraviolet irradiation unit 130 is disposed above the transport roller 60 and extends in the width direction of the template T (longitudinal direction of the transport roller 60). Then, by irradiating the surface T 1 of the template T being conveyed on the conveying roller 60 with ultraviolet rays, the entire surface T 1 of the template T is irradiated with ultraviolet rays.
- “in transport of the template” includes a case where the template T is temporarily stopped on the transport roller 60.
- the release agent application unit 22 has a release agent nozzle 131 that supplies the release agent onto the template T.
- the release agent nozzle 131 is disposed above the transport roller 60.
- the release agent nozzle 131 extends in the width direction of the template T, and a slit-like supply port (not shown) is formed on the lower surface thereof. Then, by supplying the release agent from a release agent nozzle 131 to the surface T 1 of the template T in the movement of the conveyor roller 60 on the release agent is applied to the entire surface of the surface T 1.
- the release agent application unit 22 is connected to a discharge pipe (not shown) for collecting and discharging the release agent dropped from the template T and an exhaust pipe (not shown) for exhausting the internal atmosphere. Yes.
- a material having a liquid repellency with respect to a resist film on the wafer W which will be described later, such as a fluororesin, is used as the material of the release agent.
- the heating unit 23 has a hot plate 132 disposed above the transport roller 60.
- a heater that generates heat by power feeding is provided inside the hot plate 132, and the hot plate 132 can be adjusted to a predetermined set temperature.
- the heat plate 132 extends in the width direction of the template T, can be heated template T being conveyed to conveying roller 60 above the surface T 1 side.
- the heating unit 23 is connected to an exhaust pipe (not shown) that exhausts the internal atmosphere.
- the heating plate 132 is heated template T from the surface T 1 side, may be heated to template T from the back T 2 side. That is, the hot plate may be arranged at the same height as the conveyance roller 60 or may be arranged below the conveyance roller 60. Furthermore, by both placing these hot plate, the template T may be heated from the both surfaces T 1 and back T 2.
- a part of the conveyance roller 60 constitutes a temperature adjustment roller 60a. Cooling water for cooling the template T circulates inside the temperature adjustment roller 60a. Further, a gas supply unit 133 that blows an inert gas such as nitrogen or a gas gas such as dry air downward is disposed above the transport roller 60. Gas supply part 133 extends in the width direction of the template T, it is possible to blow air gas on the surface T 1 entire template T being conveyed. The template T is adjusted to a predetermined temperature by the temperature adjusting roller 60a and the gas supply unit 133. The temperature control unit 24 is connected to an exhaust pipe (not shown) that exhausts the internal atmosphere.
- the rinsing unit 25 includes a rinsing liquid nozzle 134 that supplies an organic solvent as a rinsing liquid for a release agent onto the template T, and a gas nozzle 135 that blows an inert gas such as nitrogen or a gas gas such as dry air onto the template T. And have.
- the rinsing liquid nozzle 134 and the gas nozzle 135 are disposed above the transport roller 60 and in this order from the temperature adjustment unit 24 side.
- the rinse liquid nozzle 134 and the gas nozzle 135 are each extended
- the rinse unit 25 is connected to a discharge pipe (not shown) for collecting and discharging the organic solvent dropped from the template T and an exhaust pipe (not shown) for exhausting the internal atmosphere.
- the post-cleaning unit 31 is provided with a casing 140.
- the inside of the casing 140 is divided into two processing spaces 140a and 140b by a partition wall 141.
- a loading / unloading port 142 for the template T is formed at a height corresponding to the conveyance roller 61.
- Each loading / unloading port 142 may be provided with an open / close shutter (not shown) so that the interior of the post-cleaning unit 31 can be sealed.
- an ultraviolet irradiation unit 143 that irradiates the template T with ultraviolet rays is provided. Further, in the processing space 140b on the inspection unit 32 side, a cleaning liquid nozzle 144 that supplies a cleaning liquid onto the template and a gas nozzle 145 that blows an inert gas such as nitrogen or a gas gas such as dry air onto the template T are installed. They are provided in this order from the print unit 4 side.
- the ultraviolet irradiation unit 143, the cleaning liquid nozzle 144, and the gas nozzle 145 are disposed above the transport roller 61.
- the ultraviolet irradiation unit 143 extends in the width direction of the template T (longitudinal direction of the transport roller 61).
- the cleaning liquid nozzle 144 and the gas nozzle 145 also extend in the width direction of the template T, and a slit-like supply port (not shown) is formed on the lower surface thereof. Then, the surface T 1 of the template T can be cleaned by irradiating the template T being conveyed on the conveying roller 61 with ultraviolet rays from the ultraviolet irradiation unit 143 and then supplying the cleaning liquid onto the template T from the cleaning liquid nozzle 144. Further thereafter, the cleaned surface T 1 of the template T can be dried by the gas gas from the gas nozzle 145.
- the post-cleaning unit 31 is connected to a discharge pipe (not shown) for collecting and discharging the cleaning liquid dropped from the template T and an exhaust pipe (not shown) for exhausting the internal atmosphere.
- a discharge pipe for collecting and discharging the cleaning liquid dropped from the template T
- an exhaust pipe for exhausting the internal atmosphere.
- an organic solvent or pure water is used as the cleaning liquid
- IPA isopropyl alcohol
- dibutyl ether dibutyl ether
- cyclohexane or the like is used as the organic solvent.
- the reversing unit 54 has a casing 150 in which a loading / unloading port (not shown) for the wafer W is formed on the side surface.
- a reversing mechanism 160 for reversing the front and back surfaces of the wafer W.
- the reversing mechanism 160 has a pair of holding portions 161 and 161 that can approach and separate from each other.
- the holding portion 161 includes a substantially 3/4 annular frame portion 162 configured to match the outer diameter of the wafer W, and an arm portion 163 that supports the frame portion 162. These frame portion 162 and the arm The part 163 is integrally formed.
- the frame portion 162 is provided with a holding portion 164 for holding the wafer W, and the holding portion 164 is formed with a tapered groove (not shown). Then, when the pair of spaced holding parts 161 and 161 come close to each other, the outer peripheral part of the wafer W is inserted into the tapered groove of the holding part 164 and the template T is supported.
- the holding part 161 is supported by the rotation drive part 165 as shown in FIG.
- the rotation drive unit 165 By this rotation drive unit 165, the holding unit 161 can be rotated around the horizontal (around the Y axis), and the front and back surfaces of the wafer W held by the holding unit 161 can be reversed.
- the holding unit 161 can be expanded and contracted in the horizontal direction (Y direction) by the rotation driving unit 165, and can transfer the wafer W to the wafer transfer body 52.
- an elevation drive unit 167 is provided via a shaft 166. By this lifting drive unit 167, the rotation drive unit 165 and the holding unit 161 can be lifted and lowered.
- the imprint system 1 described above is provided with a control unit 200 as shown in FIG.
- the control unit 200 is a computer, for example, and has a program storage unit (not shown).
- the program storage unit the template T is transferred between the template loading / unloading station 2, the processing station 3, and the imprint unit 4, the wafer W is transferred between the wafer loading / unloading station 5 and the imprint unit 4, and the processing station 3 and the imprint unit 4.
- a program for controlling the operation of the drive system in the above and executing an imprint process to be described later in the imprint system 1 is stored.
- This program is recorded in a computer-readable storage medium such as a computer-readable hard disk (HD), flexible disk (FD), compact disk (CD), magnetic optical desk (MO), memory card, or the like. Or installed in the control unit 200 from the storage medium.
- HD computer-readable hard disk
- FD flexible disk
- CD compact disk
- MO magnetic optical desk
- the imprint system 1 according to the present embodiment is configured as described above. Next, an imprint process performed in the imprint system 1 will be described.
- FIG. 12 shows the main processing flow of this imprint processing
- FIG. 13 shows the state of the template T and the wafer W in each step.
- the template carrier 12, the template T is taken from the template cassette C T on the cassette mounting table 10, it is transported to the transition unit 20 of the processing station 3 (Step F1 in FIG. 12).
- the template cassette C T, the template T, the surface T 1 of the transfer pattern C is formed is accommodated so as to face upward, the template T in this state is conveyed to the transition unit 20.
- the template T transported into the transition unit 20 is placed on the transport roller 60 by the lift pins 110 and transported at a predetermined speed by roller transport along the transport line A1.
- the transfer line A1 the template T being transferred to the transition unit 20, the pre-cleaning unit 21, the release agent coating unit 22, the heating unit 23, the temperature adjustment unit 24, and the rinse unit 25 is sequentially transferred to each of the processing units 21 to 25. A predetermined process is performed.
- the transfer line A1 first, in the pre-cleaning unit 21, ultraviolet rays are irradiated from the ultraviolet irradiation unit 130 on the template T, the surface T 1 of the template T is cleaned as shown in FIG. 13 (a) (FIG. 12 steps F2). Subsequently, the release agent coating unit 22 supplies the release agent S on the template T from the release agent nozzle 131, a release agent to the surface T 1 the entire surface of the template T as shown in FIG. 13 (b) S Is applied (step F3 in FIG. 12). Thereafter, in the heating unit 23, the template T is heated to, for example, 200 ° C. by the hot plate 132, and the release agent S on the template T is baked as shown in FIG.
- step F4 in FIG. 12 Thereafter, in the temperature adjustment unit 24, the template T is adjusted to a predetermined temperature by the temperature adjustment roller 60 a and the gas supply unit 133. Thereafter, in the rinsing unit 25, an organic solvent is supplied to the template T from the rinsing liquid nozzle 134, and only the unreacted portion of the release agent S on the template T is peeled off. Thus, as shown in FIG. 13D, the release agent S along the transfer pattern C is formed on the template T (step F5 in FIG. 12).
- the template T is transported into the imprint unit 4 by the transport roller 61.
- the unreacted part of the release agent S means a part other than the part where the release agent S chemically reacts with the surface T 1 of the template T and adsorbs to the surface T 1 .
- the wafer cassette C W on the cassette mounting table 50 is transferred by the wafer transfer body 52.
- the wafer W is taken out from the wafer and transferred to the alignment unit 53.
- the alignment unit 53 the orientation of the wafer W is adjusted based on the position of the notch portion of the wafer W.
- the wafer W is reversed by the reversing unit 54 and transferred to the imprint unit 4 (step F6 in FIG. 12).
- the control unit 200 controls the supply timing and supply amount of the resist solution supplied from the resist solution nozzle 72. That is, in the transfer pattern C of the template T, the amount of the resist solution applied to the portion formed on the convex portion (the portion corresponding to the concave portion in the resist pattern formed on the wafer W) is small, and the portion corresponding to the concave portion The amount of the resist solution applied to (the portion corresponding to the convex portion in the resist pattern) is controlled so as to increase.
- a resist solution is applied on the template T according to the aperture ratio of the transfer pattern C, and a resist film R is formed.
- the resist solution is applied while moving the resist solution nozzle 72.
- the resist solution nozzle 72 is not necessarily moved. That is, for example, if the resist solution nozzle 72 is disposed above the transport roller 60 and in the vicinity of the loading / unloading port E1 along the Y direction, the template T is moved forward by the transport roller 60 in the X direction positive direction (FIG. 5).
- the resist solution nozzle 72 is in a fixed position, the template T can be moved relative to the resist solution nozzle 72 and is transferred to the surface T 1 of the template T. This is because the resist film R can be formed.
- the wafer W held by the wafer holder 80 is moved to a predetermined position in the horizontal direction for alignment, and the template T is fixed by the chuck 63 of the template holder 62. Hold the underside of the. Thereafter, the template T held by the template holding unit 62 is rotated in a predetermined direction. Then, the template T is raised to the wafer W side as shown by the arrow in FIG. The template T rises to a predetermined position, and the surface T 1 of the template T is pressed against the resist film R on the wafer W. The predetermined position is set based on the height of the resist pattern formed on the wafer W. Subsequently, light is emitted from the light source 83.
- the light from the light source 83 passes through the template T and is irradiated onto the resist film R on the wafer W as shown in FIG. 13F, whereby the resist film R is photopolymerized.
- the transfer pattern C of the template T is transferred to the resist film R on the wafer W to form the resist pattern P (step F8 in FIG. 12).
- the template T is lowered as shown in FIG. 13G to form a resist pattern P on the wafer W.
- the wafer W is transferred to the wafer transfer body 52, transferred from the imprint unit 4 to the wafer carry-in / out station 5, and returned to the wafer cassette CW (step F9 in FIG. 12).
- a thin resist residual film L may remain in the concave portion of the resist pattern P formed on the wafer W. For example, the residual film L outside the imprint system 1 as shown in FIG. The film L may be removed.
- steps F6 to F9 are repeatedly performed to form resist patterns P on the plurality of wafers W using one template T, respectively.
- steps F1 ⁇ F5 described above, forming the release agent S on the surface T 1 of the plurality of templates T.
- the template T on which the release agent S is formed is waiting on the transport roller 60 of the transport line A1.
- Steps F6 to F9 are performed on a predetermined number of wafers W
- the used template T is transported from the transport roller 60 to the transport roller 61, and is transported from the imprint unit 4 to the transport line A2 by the transport roller 61.
- Step F10 in FIG. 12 a new template T is transported to the imprint unit 4 by the transport roller 60 of the transport line A1.
- the template T in the imprint unit 4 is exchanged.
- the timing for exchanging the template T is set in consideration of deterioration of the template T and the like.
- the template T is also replaced when a different pattern P is formed on the wafer W.
- the template T may be exchanged every time the template T is used once. Further, for example, the template T may be exchanged for each wafer W, or the template T may be exchanged for each lot, for example.
- the used template T conveyed to the conveyance roller 61 of the conveyance line A2 is conveyed at a predetermined speed by roller conveyance along the conveyance line A2.
- the post-cleaning unit 31, the inspection unit 32, and the transition unit 33 are sequentially transported, and a predetermined process is performed on the template T being transported in each processing unit 31 and 32.
- the transport line A2 first, ultraviolet rays are irradiated onto the template T from the ultraviolet irradiation unit 143 in the post-cleaning unit 31. Then, the release agent S on the template T is vaporized and most of it is removed. Subsequently, the cleaning liquid supply with respect to the release agent S remaining from cleaning liquid nozzles 144 on the template T, then blowing a gas gas on the template T from the gas nozzle 145, the surface T 1 is is dried. Thus, the release agent S on the template T is removed, the surface T 1 is washed (step F11 in FIG. 12).
- the surface T 1 of the template T of the watermark is attached, preferably then further washed with IPA is an organic solvent. Then, in the inspection unit 32, for example, by observation or the like of the interference fringes, the surface T 1 of the template T is inspected (step F12 in FIG. 12). In the post-cleaning unit 31, the rear surface T 2 may also be washed well surface T 1 of the template T. Further, the inspection unit 32 may inspect not only the front surface T 1 of the template T but also the back surface T 2 .
- the template T carried to the transit unit 33 is delivered to the template carrier 12 by the lifting pin 110 is returned to the template cassette C T.
- the test result of the inspection unit 32 is good, for example, be surface T 1 it is properly cleaned of the template T, and if the surface T 1 is not deteriorated, the template T returned to the template cassette C T Are used again in the imprint system 1.
- the inspection result of the inspection unit 32 is poor, for example when the surface T 1 of the template T is degraded, the template T is carried to the outside of the imprint system 1.
- the predetermined resist pattern P is continuously formed on the plurality of wafers W while the template T is continuously replaced.
- the imprint system 1 includes the template carry-in / out station 2 and the wafer carry-in / out station 5, and the template T can be continuously conveyed by the conveyance rollers 60 and 61. After forming a predetermined pattern on the substrate using the template T, the template T can be continuously replaced with another template T.
- the template T in the imprint unit 4 can be exchanged continuously and efficiently even before the template T deteriorates or when different patterns are formed on the plurality of wafers W. Therefore, a predetermined pattern can be continuously formed on the plurality of wafers W. This also enables mass production of semiconductor devices.
- the predetermined process is performed on the template T being transferred by the plurality of transfer rollers 60 and 61, the predetermined process is continuously performed on the plurality of templates T. It can be carried out.
- the release agent forming section 26, that is, the processing units 20 to 25 are provided in the processing station 3, the template T is formed while forming the release agent S on the template T in the imprint system 1. Can be continuously supplied to the imprint unit 4. Therefore, the template T in the imprint unit 4 can be exchanged more efficiently.
- the template cleaning unit 27, that is, post-cleaning unit 31 is provided, it is possible to clean the surface T 1 of the used template T in the imprint system 1. As a result, the template T can be used again in the imprint system 1.
- the surface T of the template T is formed by both the ultraviolet ray irradiated from the ultraviolet irradiation unit 143 and the cleaning liquid supplied from the cleaning liquid nozzle 144. 1 can be washed. That is, since both of the so-called dry cleaning and wet cleaning is performed on the template T, it is possible to reliably clean the surface T 1 of the template T.
- the inspection unit 32 is provided, it is possible to inspect the surface T 1 of the template T after washing. Based on the inspection result, for example, the template T can be used again in the imprint system 1 or can be determined to be carried out of the imprint system 1. As a result, the template T can be used effectively, and a defective template T is not used in the imprint system 1, so that a predetermined resist pattern P can be appropriately formed on the plurality of wafers W. it can.
- the resist pattern P can be formed on the wafer W quickly and efficiently in the imprint unit 4. That is, when applying the resist solution on the wafer W, for example, after aligning the resist nozzle at a predetermined position in the horizontal direction of the wafer W and applying the resist solution, the resist solution is applied to a position corresponding to the applied resist solution. This is because it is necessary to align the template T in the horizontal direction, but it is not necessary to perform this alignment because the resist solution is applied onto the template T.
- the processing station 3 of the above embodiment is provided with both the transfer line A1 and the transfer line A2.
- a processing station 210 having only the transfer line A1 is provided.
- the processing units 31 and 32 of A2 may be omitted.
- a plurality of conveyance rollers 61 are arranged at the positions of the omitted processing units 31 and 32, and only the template T is conveyed. In this case, step of the embodiment F11, F12 is omitted, the cleaning of the surface T 1 of the used template T is performed outside the imprint system 1.
- a processing station 220 having only the transfer line A2 may be provided, and the processing units 21 to 25 of the transfer line A1 may be omitted.
- a plurality of conveyance rollers 60 are provided at the positions of the processing units 21 to 25 which are omitted, and only the template T is conveyed.
- the steps F2 to F5 of the embodiment are omitted, and the film formation of the release agent S on the template T is performed outside the imprint system 1. That is, the template T on which the release agent S is formed is carried into the imprint system 1.
- a processing station 230 having only the transport line A1 and the transport roller 60 and a processing station 240 having only the transport line A2 and the transport roller 61 are arranged in a straight line across the imprint unit 4 as shown in FIG. You may arrange in.
- a template unloading station 241 for unloading the template T to the processing station 230 is connected to the side of the processing station 230 opposite to the imprint unit 4 side, for example.
- a template loading station 242 for loading the template T from the processing station 240 is connected to the side surface of the processing station 240 opposite to the imprint unit 4 side.
- the template carry-out station 241 and the template carry-in station 242 may be arranged apart from each other as shown in FIG. 16, for example.
- the conveyance rollers 60 and 61 arranged in a substantially L shape in the imprint unit 4 are arranged in a straight line as shown in FIG.
- the processing stations 230 and 240 are arranged linearly with the imprint unit 4 interposed therebetween.
- the processing stations 230 and 240 are not necessarily arranged linearly.
- the processing stations 230 and 240 are arranged so as to be orthogonal to each other. May be.
- the template T in the imprint unit 4 can be continuously replaced, and a predetermined resist pattern P can be continuously formed on the plurality of wafers W.
- the resist liquid coating operation on the template T which has been performed in the imprint unit 4 in the above embodiment, may be performed in the processing station.
- a processing station 260 in which a resist coating unit 250 as a coating unit for coating a resist solution on the template T is arranged between the imprint unit 4 and the rinsing unit 25 of the transport line A1.
- the resist coating unit 250 has a configuration in which the release agent nozzle 131 in the release agent application unit 22 shown in FIG. 8 is replaced with a resist solution nozzle that supplies a resist solution. In this case, it is not necessary to apply a resist solution on the template T in the imprint unit 4, so that the resist solution nozzle 72 in the imprint unit 4 can be omitted.
- the template T on which the resist film R is formed is carried into the imprint unit 4, when the resist pattern P is formed on one wafer W, the used template T is replaced. As a result, the number of processing steps in the imprint unit 4 is reduced, so that the resist pattern P can be quickly formed on the wafer W.
- the processing station 260 When the processing station 260 is used, a plurality of, for example, three processing stations 260 may be provided radially with respect to the imprint unit 4 as shown in FIG. In such a case, in the imprint unit 4, the conveyance roller 61 is disposed so as to form three U-shapes for each processing station 260 in order to correspond to the three processing stations 260.
- a resist coating unit 250 may be provided in the processing station 230, and a plurality of processing stations 230 and 240 may be radially connected to the imprint unit 4 as shown in FIG.
- the conveyance rollers 60 and 61 arranged in the imprint unit 4 are arranged so that the conveyance rollers 60 and 61 do not interfere with each other by arranging the processing stations 230 and 240 that perform a series of processes on a straight line. For example, as shown in FIG. 21, it arrange
- a processing station 230 provided with a coating unit 250 and a processing station 270 in which the processing station 240 is connected in series are connected radially to the imprint unit 4 and arranged in series.
- the template T may be transported back and forth within the processing station 270.
- the transport roller 60 is disposed in the imprint unit 4.
- a mechanism capable of rotating forward and backward is used.
- the transport roller 60 is rotated forward and the transport roller 61 is rotated backward.
- the processing station 270 the arrangement of the processing stations 230 and 240 may be reversed.
- the arrangement of the plurality of processing stations provided for the imprint unit 4 is not limited to a radial shape. If the template T can be transported to and from the imprint unit 4, the imprint unit 4 can be transported. You may connect from any direction.
- the template T in the imprint unit 4 can be continuously replaced, and a predetermined resist pattern P can be more efficiently applied to a plurality of wafers W. Can be formed.
- the resist film R on the wafer W surface T 1 of the template T Is pressed after the positioning by moving the wafer W held by the wafer holding unit 80 at a predetermined position in the horizontal direction, the resist film R on the wafer W surface T 1 of the template T Is pressed.
- both the ultraviolet irradiation unit 143 and the cleaning liquid nozzle 144 are provided, but only one of them may be provided.
- the cleaning liquid nozzles 144 when cleaning the surface T 1 of the template T by only the supply of the cleaning liquid in the cleaning unit 31 after shown in FIG. 9, only the cleaning liquid nozzles 144 provided, it may be omitted ultraviolet irradiation unit 143.
- an organic solvent is used for the cleaning liquid.
- the mold release agent S can be removed only by the IPA.
- the release agent S for example, when dibutyl ether or cyclohexane is used, it is preferable to remove the release agent S by further supplying IPA after supplying the organic solvent.
- the release agent coating unit 22 of the processing station 3 supplies the liquid release agent S from the release agent nozzle 131 onto the template T, thereby releasing the surface T 1 of the template T. had been coated with a mold material S, it may be formed a releasing agent S and a release agent which is vaporized on the surface T 1 of the template T is deposited.
- a release agent application unit 300 is arranged on the transport line A1 of the imprint system 1 instead of the release agent application unit 22 and the rinse unit 25 shown in FIG.
- the transfer line A1 includes, in order from the template loading / unloading station 2 side to the imprint unit 4 side, the transition unit 20, the pre-cleaning unit 21, the release agent coating unit 300, the heating unit 23, and the temperature adjustment unit. 24 are arranged in a line.
- the mold release agent application unit 300 has a casing 301 therein as shown in FIG.
- a carry-in / out port 302 for the template T is formed at a height corresponding to the transport roller 60.
- Each loading / unloading port 302 may be provided with an open / close shutter (not shown) so that the inside of the casing 301 can be sealed.
- a release agent nozzle 303 that supplies the release agent vaporized on the template T and an exhaust pipe 304 that exhausts the atmosphere in the casing 301 are connected to the casing 301.
- the release agent nozzle 303 and the exhaust pipe 304 are provided in this order from the pre-cleaning unit 21 side.
- the release agent vaporized is supplied from the releasing agent nozzle 303 flows in the conveying direction of the template T along the transport line A1, is deposited along the transfer pattern C on the surface T 1 of the template T.
- the conveyance roller 60 inside the casing 301 constitutes a temperature control roller 60b. Inside the temperature control roller 60b, temperature adjusting water having a predetermined temperature is circulated.
- the template T can be set to a predetermined temperature by the temperature control roller 60b.
- the template T is conveyed to the pre-cleaning unit 21, the surface T 1 of the template T is cleaned as shown in FIG. 25 (a). Thereafter, the template T can be transported to the release agent coating unit 300, FIG. 25 (b) is the release agent S 0 vaporized on the surface T 1 of the template T as shown in the supply, is the release agent S 0 Deposited along the transfer pattern C.
- the template T is set to a predetermined temperature by the temperature control roller 60b.
- the template T is conveyed to the heating unit 23, and the release agent S on the template T is baked as shown in FIG.
- the template T is conveyed to the temperature adjustment unit 24, and the template T is adjusted to a predetermined temperature. In this way, on the surface T 1 of the template T, the release agent S along the transfer pattern C is deposited.
- vaporized release agent S 0 is to deposit along the transfer pattern C of the template T, there is no need to rinse the release agent S. Therefore, in the processing station 3, the mold release agent S can be more smoothly formed on the template T, and thereby the imprint processing throughput in the imprint system 1 can be improved.
- a release agent S 0 vaporized after providing the upper surface T 1 of the template T the release agent S 0 may be dried under reduced pressure. In such a case, the conveyance of the template T in the release agent coating unit 300 may be temporarily stopped.
- the templates T are individually transported and processed in the template loading / unloading station 2 and the processing station 3, but as shown in FIG. 26, a plurality of, for example, nine templates T have one holder 350. May be held and processed.
- the holder 350 is formed with a receiving portion 351 that is recessed downward to receive each template T as shown in FIG.
- a plurality of suction ports are formed on the bottom surface of the storage portion 351 so that each template T is sucked and held in the storage portion 351.
- a plurality of templates T held by the holder 350 can be conveyed to the imprint unit 4 side at a time.
- a predetermined process can be performed on a plurality of templates T at a time. Therefore, the template T in the imprint unit 4 can be exchanged more efficiently.
- a plurality of transfer patterns C are simultaneously formed on the wafer W by a plurality of templates T in the imprint unit 4. Since transfer is also possible, transfer of the transfer pattern C to the wafer W can be performed more efficiently.
- the template holding unit 62 is provided below the wafer holding unit 80.
- the template T transferred by the transfer roller 60 is used.
- a reversing unit for reversing may be provided outside or inside the imprint unit 4, the template holding unit 62 may be disposed on the ceiling of the casing 55, and the wafer holding unit 80 may be disposed on the bottom surface of the casing 55.
- the template T is smaller than the wafer W, the front and back surfaces of the template T can be easily reversed.
- the present invention is not limited to such examples. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the idea described in the claims, and these naturally belong to the technical scope of the present invention. It is understood.
- the present invention is not limited to this example and can take various forms.
- the present invention can also be applied to a case where the substrate is another substrate such as an FPD (flat panel display) other than a wafer or a mask reticle for a photomask.
- FPD flat panel display
- the present invention is useful when a template having a transfer pattern formed on the surface thereof is used to transfer the transfer pattern to a coating film formed on a substrate and form a predetermined pattern on the coating film.
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Abstract
Description
2 テンプレート搬入出ステーション
3 処理ステーション
4 インプリントユニット
5 ウェハ搬入出ステーション
10 カセット載置台
11 搬送路
12 テンプレート搬送体
21 前洗浄ユニット
22 離型剤塗布ユニット
23 加熱ユニット
24 温度調節ユニット
25 リンスユニット
26 離型剤形成部
27 テンプレート洗浄部
31 後洗浄ユニット
32 検査ユニット
50 カセット載置台
51 搬送路
52 ウェハ搬送体
53 アライメントユニット
54 反転ユニット
55 ケーシング
60、61 搬送ローラ
60a 温度調節ローラ
60b 温度制御ローラ
62 テンプレート保持部
63 チャック
70 レール
71 アーム
72 レジスト液ノズル
73 ノズル駆動部
74 待機部
80 ウェハ保持部
81 移動機構
110 昇降ピン
111 昇降駆動部
120 ケーシング
121 仕切壁
122 搬入出口
130 紫外線照射部
131 離型剤ノズル
132 熱板
133 ガス供給部
134 リンス液ノズル
135 ガスノズル
140 ケーシング
141 仕切板
142 搬入出口
143 紫外線照射部
144 洗浄液ノズル
145 ガスノズル
150 ケーシング
160 反転機構
161 保持部
162 フレーム部
163 アーム部
164 狭持部
165 回転駆動部
166 シャフト
167 昇降駆動部
200 制御部
210 処理ステーション
220 処理ステーション
230 処理ステーション
240 処理ステーション
241 テンプレート搬出ステーション
242 テンプレート搬入ステーション
250 レジスト塗布ユニット
260 処理ステーション
270 処理ステーション
300 離型剤塗布ユニット
301 ケーシング
302 搬入出口
303 離型剤ノズル
304 排気管
350 ホルダー
351 収容部
A、A1、A2 搬送ライン
C 転写パターン
E1、E2 搬入出口
P レジストパターン
R レジスト膜
S 離型剤
T テンプレート
W ウェハ
Claims (14)
- 基板上の塗布膜に所定のパターンを形成するインプリントシステムであって、
表面に転写パターンが形成されたテンプレートを用いて、前記基板上の塗布膜に前記転写パターンを転写し、当該塗布膜に所定のパターンを形成するインプリントユニットと、
前記インプリントユニットに接続され、前記テンプレートに所定の処理を行う処理ステーションと、
前記処理ステーションに接続され、複数の前記テンプレートを保有可能で、且つ前記処理ステーションに前記テンプレートを搬入出するテンプレート搬入出ステーションと、
前記インプリントユニット内に通じて設けられ、前記テンプレートを前記インプリントユニットと前記処理ステーションとの間で搬送する搬送ラインと、
前記インプリントユニットに接続され、複数の前記基板を保有可能で、且つ前記インプリントユニットに前記基板を搬入出する基板搬入出ステーションと、を有し、
前記インプリントユニットは、前記基板を保持する基板保持部と、前記搬送ラインにより搬送されたテンプレートを保持するテンプレート保持部と、前記テンプレート保持部を昇降させる移動機構と、を備え、前記基板保持部と前記テンプレート保持部は、当該基板保持部に保持された前記基板と、当該テンプレート保持部に保持された前記テンプレートが対向するように配置されている。 - 請求項1に記載のインプリントシステムにおいて、
前記搬送ラインは、前記テンプレートを前記インプリントユニットへ搬送する第1の搬送ラインと、
前記インプリントユニットから搬送されるテンプレートを搬送する第2の搬送ラインと、
を有する。 - 請求項2に記載のインプリントシステムにおいて、
前記テンプレート搬入出ステーションは、テンプレートを前記処理ステーションへ搬出するテンプレート搬出ステーションと、テンプレートを前記処理ステーションから搬入するテンプレート搬入ステーションとを有し、
前記搬出ステーションと前記搬入ステーションとは離れて配置され、
前記第1の搬送ラインは前記テンプレート搬入ステーションに接続され、前記第2の搬送ラインは前記テンプレート搬出ステーションに接続されている。 - 請求項1に記載のインプリントシステムにおいて、
一の前記インプリントユニットに対して、前記搬送ラインが複数設けられている。 - 請求項4に記載のインプリントシステムにおいて、
前記複数の搬送ラインは、前記インプリントユニットに放射状に接続されている。 - 請求項1に記載のインプリントシステムにおいて、
前記処理ステーションは、前記テンプレート上に離型剤を成膜する離型剤形成部を有する。 - 請求項1に記載のインプリントシステムにおいて、
前記処理ステーションは、前記インプリントユニットから搬出されたテンプレート上の離型剤を除去して、当該テンプレートの表面を洗浄するテンプレート洗浄部を有する。 - 請求項1に記載のインプリントシステムにおいて、
前記処理ステーションは、前記搬送ラインで搬送中の前記テンプレートに所定の処理を行う。 - 請求項1に記載のインプリントシステムにおいて、
少なくとも前記処理ステーション及びインプリントユニットにおいて、複数の前記テンプレートは一のホルダーに保持されている。 - 表面に転写パターンが形成されたテンプレートを用いて、前記基板上の塗布膜に前記転写パターンを転写し、当該塗布膜に所定のパターンを形成するインプリントユニットと、
前記インプリントユニットに接続され、前記テンプレートに所定の処理を行う処理ステーションと、
前記処理ステーションに接続され、複数の前記テンプレートを保有可能で、且つ前記処理ステーションに前記テンプレートを搬入出するテンプレート搬入出ステーションと、
前記インプリントユニットと前記処理ステーションに亘って設けられ、前記テンプレートを前記インプリントユニットと前記処理ステーションとの間で搬送する搬送ラインと、
前記インプリントユニットに接続され、複数の前記基板を保有可能で、且つ前記インプリントユニットに前記基板を搬入出する基板搬入出ステーションと、を有するインプリントシステムを用いたインプリント方法であって、
前記インプリントユニットにおいて、一の前記テンプレートを用いて、基板に所定のパターンを形成した後、
前記一のテンプレートを前記インプリントユニットから搬出すると共に、他の前記テンプレートを前記インプリントユニットに搬入して、前記インプリントユニット内のテンプレートを交換する。 - 請求項10に記載のインプリント方法において、
前記処理ステーションにおいて、前記インプリントユニットに搬入するテンプレート上に離型剤を成膜する。 - 請求項10に記載のインプリント方法において、
前記処理ステーションにおいて、前記インプリントユニットから搬出されたテンプレート上の離型剤を除去して、当該テンプレートの表面を洗浄する。 - 請求項10に記載のインプリント方法において、
少なくとも前記処理ステーション及びインプリントユニットにおいて、複数の前記テンプレートは一のホルダーに保持されている。 - インプリント方法をインプリントシステムによって実行させるために、当該インプリントシステムを制御する制御部のコンピュータ上で動作するプログラムを格納した読み取り可能なコンピュータ記憶媒体であって、
前記インプリント方法は、
表面に転写パターンが形成されたテンプレートを用いて、前記基板上の塗布膜に前記転写パターンを転写し、当該塗布膜に所定のパターンを形成するインプリントユニットと、前記インプリントユニットに接続され、前記テンプレートに所定の処理を行う処理ステーションと、前記処理ステーションに接続され、複数の前記テンプレートを保有可能で、且つ前記処理ステーションに前記テンプレートを搬入出するテンプレート搬入出ステーションと、前記インプリントユニットと前記処理ステーションに亘って設けられ、前記テンプレートを前記インプリントユニットと前記処理ステーションとの間で搬送する搬送ラインと、前記インプリントユニットに接続され、複数の前記基板を保有可能で、且つ前記インプリントユニットに前記基板を搬入出する基板搬入出ステーションと、を有するインプリントシステムを用いたインプリント方法であって、
前記インプリントユニットにおいて、一の前記テンプレートを用いて、基板に所定のパターンを形成した後、
前記一のテンプレートを前記インプリントユニットから搬出すると共に、他の前記テンプレートを前記インプリントユニットに搬入して、前記インプリントユニット内のテンプレートを交換するものである。
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