WO2011129369A1 - 露光装置、基板処理装置及びデバイス製造方法 - Google Patents
露光装置、基板処理装置及びデバイス製造方法 Download PDFInfo
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- WO2011129369A1 WO2011129369A1 PCT/JP2011/059189 JP2011059189W WO2011129369A1 WO 2011129369 A1 WO2011129369 A1 WO 2011129369A1 JP 2011059189 W JP2011059189 W JP 2011059189W WO 2011129369 A1 WO2011129369 A1 WO 2011129369A1
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- substrate
- pattern
- optical system
- projection
- exposure apparatus
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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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- 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
- G03F7/70275—Multiple projection paths, e.g. array of projection systems, microlens projection systems or tandem projection systems
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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
- G03F7/703—Non-planar pattern areas or non-planar masks, e.g. curved masks or substrates
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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
- G03F7/70691—Handling of masks or workpieces
- G03F7/70791—Large workpieces, e.g. glass substrates for flat panel displays or solar panels
Definitions
- the present invention relates to an exposure apparatus, a substrate processing apparatus, and a device manufacturing method.
- a display element constituting a display device such as a display device
- a liquid crystal display element and an organic electroluminescence (organic EL) element are known.
- organic EL organic electroluminescence
- active elements active devices that form thin film transistors (TFTs) on the substrate surface corresponding to each pixel have become mainstream.
- a technique for forming a display element on a flexible substrate for example, a film member
- a technique called a roll-to-roll system (hereinafter simply referred to as “roll system”) is known (see, for example, Patent Document 1).
- roll system a technique called a roll-to-roll system
- the belt-shaped substrate wound around the substrate supply side supply roller is sent out, and the substrate is transported while being wound up by the substrate recovery side recovery roller.
- a display device is expected to have a large display screen, and there is a demand for a technology that enables a large display element to be efficiently manufactured on a strip-shaped substrate even in the roll method described above.
- an aspect of the present invention aims to provide an exposure apparatus, a substrate processing apparatus, and a device manufacturing method capable of efficiently manufacturing a display element on a strip-shaped substrate.
- a device manufacturing method is a device manufacturing method for manufacturing a device by processing a substrate, wherein the pattern is transferred to the substrate using the exposure apparatus, and the pattern is Processing the transferred substrate based on the pattern.
- an exposure apparatus a substrate processing apparatus, and a device manufacturing method that can efficiently manufacture a display element on a strip-shaped substrate.
- FIG. 1 is a schematic diagram showing a configuration of an exposure apparatus according to the present embodiment.
- FIG. 3 is a perspective view showing the configuration of part of the exposure apparatus according to the present embodiment.
- FIG. 3 is a perspective view showing the configuration of part of the exposure apparatus according to the present embodiment.
- FIG. 3 is a perspective view showing the configuration of part of the exposure apparatus according to the present embodiment.
- FIG. 3 is a perspective view showing the configuration of part of the exposure apparatus according to the present embodiment.
- FIG. 2 is a plan view showing a configuration of a part of the exposure apparatus according to the present embodiment.
- FIG. 2 is a schematic diagram showing a part of the configuration of an exposure apparatus according to the present embodiment.
- FIG. 10 is a view showing another configuration of the exposure apparatus according to the present embodiment.
- the flowchart which shows a part of manufacturing process at the time of manufacturing a semiconductor device.
- the flowchart which shows a part of manufacturing process at the time of manufacturing a liquid crystal display element.
- FIG. 1 is a diagram showing a configuration of a substrate processing apparatus FPA according to an embodiment of the present invention.
- the substrate processing apparatus FPA is a substrate supply unit SU that supplies a band-shaped substrate (for example, a band-shaped film member) FB, and a substrate process that performs processing on the surface (surface to be processed) of the substrate FB.
- the part PR, the substrate recovery part CL for recovering the substrate FB, and the control part CONT for controlling these parts are provided.
- the substrate processing apparatus FPA is an apparatus that executes various processes on the surface of the substrate FB after the substrate FB is sent out from the substrate supply unit SU until the substrate FB is recovered by the substrate recovery unit CL.
- the substrate processing apparatus FPA can be used when a display element (electronic device) such as an organic EL element or a liquid crystal display element is formed on the substrate FB.
- the substrate FB to be processed in the substrate processing apparatus FPA for example, a foil such as a resin film or stainless steel can be used.
- the resin film is made of polyethylene resin, polypropylene resin, polyester resin, ethylene vinyl copolymer resin, polyvinyl chloride resin, cellulose resin, polyamide resin, polyimide resin, polycarbonate resin, polystyrene resin, vinyl acetate resin, etc. Can be used.
- the substrate FB preferably has a smaller coefficient of thermal expansion so that the dimensions do not change even when subjected to heat of about 200 ° C., for example.
- an inorganic filler can be mixed with a resin film to reduce the thermal expansion coefficient.
- the inorganic filler include titanium oxide, zinc oxide, alumina, silicon oxide and the like.
- the substrate FB is formed to have flexibility.
- flexibility refers to the property that the substrate can be bent without being broken or broken even if a force of its own weight is applied to the substrate.
- flexibility includes a property of bending by a force of about its own weight. The flexibility varies depending on the material, size, thickness, environment such as temperature, etc. of the substrate.
- a single strip-shaped substrate may be used, but a plurality of unit substrates may be connected to be formed in a strip shape.
- the substrate supply unit SU sends, for example, the substrate FB wound in a roll shape to the substrate processing unit PR.
- the substrate supply unit SU is provided with a shaft around which the substrate FB is wound, a rotation drive device that rotates the shaft, and the like.
- a configuration in which a cover portion that covers the substrate FB wound in a roll shape or the like may be provided.
- the substrate supply unit SU is not limited to a mechanism that sends out the substrate FB wound in a roll shape, and may be any device that includes a mechanism that sequentially sends the belt-like substrate FB in the length direction thereof.
- the substrate processing unit PR transports the substrate FB supplied from the substrate supply unit SU to the substrate recovery unit CL, and processes the surface Fp to be processed of the substrate FB during the transport process.
- the substrate processing unit PR includes, for example, a processing apparatus 10, a transfer apparatus 30, and an alignment apparatus 50.
- the processing apparatus 10 has various apparatuses for forming, for example, organic EL elements on the processing surface Fp of the substrate FB.
- Examples of such an apparatus include a partition wall forming apparatus for forming a partition wall on the processing surface Fp, an electrode forming apparatus for forming an electrode, and a light emitting layer forming apparatus for forming a light emitting layer. More specifically, a droplet coating apparatus (for example, an ink jet type coating apparatus, a spin coating type coating apparatus), a film forming apparatus (for example, a vapor deposition apparatus, a sputtering apparatus), an exposure apparatus, a developing apparatus, a surface modification apparatus, a cleaning apparatus, etc. Is mentioned. Each of these apparatuses is appropriately provided along the transport path of the substrate FB. In the present embodiment, an exposure apparatus is provided as the processing apparatus 10.
- the transport device 30 has a roller device R that transports the substrate FB to the substrate recovery unit CL in the substrate processing unit PR.
- a plurality of roller devices R are provided along the transport path of the substrate FB.
- a drive mechanism (not shown) is attached to at least some of the plurality of roller devices R. By rotating such a roller device R, the substrate FB is transported in the X-axis direction.
- a configuration may be adopted in which some of the plurality of roller devices R are movable in a direction intersecting the surface of the substrate FB.
- the alignment apparatus 50 performs an alignment operation on the substrate FB.
- the alignment apparatus 50 includes an alignment camera 51 that detects the position of the substrate FB, and an adjustment device 52 that adjusts at least one of the position and orientation of the substrate FB based on the detection result of the alignment camera 51.
- the alignment camera 51 detects, for example, an alignment mark formed on the substrate FB, and transmits the detection result to the control unit CONT.
- the control unit CONT obtains the position information of the substrate FB based on the detection result, and controls the adjustment amount by the adjusting device 52 based on the position information.
- FIG. 2 is a view showing a configuration of an exposure apparatus EX used as the processing apparatus 10.
- the exposure apparatus EX is an apparatus that projects an image of the pattern Pm formed on the mask M onto the substrate FB.
- the exposure apparatus EX includes an illumination apparatus IU that illuminates the mask M, a mask movement apparatus MST that can move and rotate while holding the mask M, and an enlarged image of the pattern Pm with respect to the substrate FB.
- a projection apparatus PU for projecting and a substrate guide apparatus FST for guiding the substrate FB are provided.
- the illumination device IU illuminates the mask M with the exposure light ELI.
- the illumination device IU has a light source device 20 and an irradiation optical system 21.
- the exposure light ELI emitted from the light source device 20 is irradiated onto the mask M from a plurality of directions via the irradiation optical system 21.
- the irradiation optical system 21 is shown in a simplified manner in FIG. 2, but actually includes a plurality of optical elements that guide the exposure light ELI.
- the mask moving device MST includes a holding unit 40 and a driving device ACM.
- the holding part 40 is formed in a cylindrical shape as a general shape, and is formed so as to hold the mask M along a cylindrical surface 40a corresponding to the outer peripheral surface thereof.
- the holding part 40 is provided to be rotatable along the circumferential direction of the cylindrical surface 40a (that is, around the axis C as the central axis of the cylindrical surface 40a).
- the driving device ACM can rotate the holding unit 40 along the cylindrical surface 40a and can move the holding unit 40 in the X, Y, and Z directions in the drawing.
- the mask M is detachably held by the holding unit 40.
- the mask M for example, a transmissive mask formed in a sheet shape is used.
- the mask M is held by the holding unit 40 so that the pattern surface on which the pattern Pm is formed faces the inside of the cylindrical surface 40a so that the pattern Pm is arranged along the cylindrical surface 40a. For this reason, the pattern Pm is disposed on a surface substantially coinciding with the cylindrical surface 40a.
- Projection apparatus PU has a plurality of projection optical systems PL.
- a part of the plurality of projection optical systems PL is arranged on the upstream side ( ⁇ X side) of the substrate FB with respect to the mask M, and holds an enlarged image of the pattern Pm arranged on the + X side of the holding unit 40.
- Projection is performed on the substrate FB located on the ⁇ X side of the unit 40.
- the other part of the plurality of projection optical systems PL is arranged on the downstream side (+ X side) of the substrate FB with respect to the mask M, and enlarges the pattern Pm arranged on the ⁇ X side of the holding unit 40.
- the image is projected onto the substrate FB located on the + X side of the holding unit 40.
- Each projection optical system PL has a first imaging unit 60 and a second imaging unit 61.
- the first imaging unit 60 is provided in an inner region of the cylindrical holding unit 40 (hereinafter, this inner region is appropriately referred to as the inside of the holding unit 40).
- the first imaging unit 60 transmits the exposure light that has passed through the mask M and entered the holding unit 40 to an outer region of the cylindrical holding unit 40 (hereinafter, this outer region is appropriately referred to as a holding unit). 40).
- the second imaging unit 61 is provided outside the holding unit 40. The second imaging unit 61 receives the exposure light from the first imaging unit 60 and irradiates the substrate FB.
- the first image forming unit 60 has a projection magnification of the same magnification or substantially the same magnification
- the second image formation unit 61 has a projection magnification (enlargement magnification) of magnification, whereby the pattern Pm Is projected onto the substrate FB.
- the substrate guide device FST guides the substrate FB so as to pass through the projection area PA on which the image of the pattern Pm is projected by the projection device PU.
- the substrate guide device FST includes a guide unit 80, an upstream roller 81, a downstream roller 82, and a driving device ACF.
- the guide unit 80 is disposed at a position corresponding to the projection area PA of the projection optical system PL disposed on the + X side of the holding unit 40 and the projection area PA of the projection optical system PL disposed on the ⁇ X side. .
- Each guide part 80 has a support surface (support part) 80a for supporting the substrate FB.
- the guide portion 80 is provided with an air bearing mechanism (not shown), and the air bearing mechanism can support the substrate FB on the support surface 80a in a non-contact manner.
- the support surface 80a is disposed at a position optically conjugate with the cylindrical surface 40a with respect to the projection optical system PL.
- the support surface 80 a has a curved portion 83.
- the bending portion 83 is bent in a direction optically corresponding to the bending direction of the mask M by the projection optical system PL.
- the bending portion 83 is curved into a convex cylindrical surface toward the projection optical system PL. .
- the substrate FB guided by the guide portion 80 is guided while being curved following the surface shape of the bending portion 83.
- the position where the bending portion 83 is disposed is not limited to the position optically conjugate with the mask M (cylindrical surface 40a) as described above, and the focal point of the image of the pattern Pm by the projection optical system PL from that position, for example.
- the position may be shifted within the depth range.
- the depth of focus ⁇ is, for example, ⁇ k ⁇ ⁇ / NA 2 ⁇ ⁇ ⁇ + k ⁇ ⁇ / NA 2 It is represented by
- ⁇ is the wavelength (center wavelength) of the exposure light ELI
- NA is the numerical aperture on the image side of the projection optical system PL
- k is a process coefficient (a constant determined based on various conditions related to imaging).
- the curved portion 83 is curved with the same curvature (curvature radius) as the curvature of the mask M (curvature radius of the cylindrical surface 40a). Since the substrate FB is curved and guided so as to have the same curvature as the curvature of the mask M, an irradiation surface on which the exposure light ELI is irradiated on the mask M, and an irradiation surface on which the exposure light ELI is irradiated on the substrate FB Have the same curvature (curvature radius).
- the curvature (curvature radius) of the mask M located in the field of view of the projection optical system PL and the projection area of the projection optical system PL that is, the region in which the pattern Pm in the field of view is projected
- the curvature (curvature radius) of the substrate FB becomes equal.
- the mask M and the substrate FB satisfy the conjugate relationship with each other over the entire surface of the projection optical system PL and within the projection region, and an enlarged image of the pattern Pm is formed on the substrate FB over the entire surface of the projection region. It can project well.
- second curved portions 84 are formed on the upstream side and the downstream side of the curved portion 83, respectively.
- the second bending portion 84 is provided at a position corresponding to the carry-in portion and the carry-out portion of the substrate FB in the guide portion 80.
- the second bending portion 84 is curved so that the curvature is larger (that is, the radius of curvature is smaller) than that of the bending portion 83. For this reason, it is avoided that the board
- the substrate FB guided by the guide portion 80 is guided by being curved following the surface shape of the bending portion 83, and therefore, the substrate FB is guided in a planar shape.
- wrinkles and slack are less likely to occur on the substrate FB on the support surface 80a (projection region). Therefore, the accuracy of alignment and focusing of the substrate FB can be improved.
- the upstream roller 81, the downstream roller 82, and the driving device ACF are controlled to apply tension that does not cause elongation to the substrate FB so that the substrate FB follows the surface shape of the curved portion 83. Can be set to
- the upstream roller 81 carries the substrate FB into the guide unit 80.
- the downstream roller 82 carries the substrate FB out of the guide unit 80.
- the upstream roller 81 and the downstream roller 82 transport the substrate FB at a predetermined transport speed, for example.
- the driving device ACF adjusts the rotation speeds of the upstream roller 81 and the downstream roller 82.
- the driving device ACF adjusts the rotation speed of the upstream roller 81 and the downstream roller 82 based on the control signal from the control unit CONT, thereby adjusting the transport speed of the substrate FB.
- the controller CONT controls the driving of the driving device ACM and the driving of the driving device ACF so that the substrate FB is transported at a transport speed corresponding to the rotational speed of the mask M.
- the control unit CONT compares the moving speed (peripheral speed) of the mask M along the cylindrical surface 40a with the transport speed in the length direction of the substrate FB (that is, the moving speed of the surface of the substrate FB). Controls the driving of the driving device ACM and the driving device ACF so as to be equal to the projection magnification (enlargement magnification) of the projection optical system PL.
- FIG. 3 is a perspective view showing a configuration of the mask moving device MST.
- FIG. 3 shows a state in which a part of the projection apparatus PU is arranged inside the holding unit 40.
- FIG. 4A is a perspective view illustrating a configuration of the holding unit 40.
- FIG. 4B is a diagram showing a pattern Pm formed on the mask M.
- the holding portion 40 of the mask moving device MST is formed along the cylindrical surface 40a.
- the holding part 40 is provided to be rotatable along the circumferential direction of the cylindrical surface 40a around the axis C.
- the holding unit 40 is detachably attached to the exposure apparatus EX by a fixing device (not shown) or the like.
- the holding part 40 has a ring part 43 and a connecting part 44.
- Five ring portions 43 are arranged with the axis C as a common central axis.
- the connecting portion 44 is disposed at a position where these five ring portions 43 are connected.
- the connecting portion 44 is provided so as to connect two adjacent ring portions 43 at two positions along the circumferential direction.
- the two connecting portions 44 are arranged, for example, at symmetrical positions with respect to the axis C (positions opposed across the axis C).
- a total of eight connecting portions 44 are provided at four locations between the five ring portions 43, two in the circumferential direction.
- maintenance part 40 is not limited to said number.
- the number of ring portions 43 is provided corresponding to the number of projection optical systems.
- the holding part 40 has a plurality of openings OP formed by the ring part 43 and the connecting part 44.
- the opening OP is formed so as to communicate the inside and the outside of the holding unit 40.
- the plurality of openings OP include a first opening 41 and a second opening 42.
- the first opening 41 and the second opening 42 are formed so as to be able to pass the exposure light ELI.
- the mask suction part SC has, for example, a suction port (not shown) provided in the ring part 43 and the connecting part 44 and a suction pump (not shown) connected to the suction port.
- the mask suction unit SC can suck the mask M to the holding unit 40 by sucking the mask M through the suction port.
- the mask suction unit SC can release the holding of the mask M by stopping the suction of the mask M.
- One mask M (Ma to Md) is held for each of the first openings 41a to 41d.
- the masks Ma to Md have patterns Pa to Pd, respectively, so that a desired pattern Pm is formed as a whole when they are connected to each other in a predetermined direction (direction corresponding to the axis C). Is formed.
- the pattern Pm is configured by connecting the patterns Pa to Pd formed on the masks Ma to Md in a predetermined direction. Note that, in the masks Ma and Mb, the same pattern is formed in end regions adjacent to each other (portions connected to each other in FIG. 4B). Similarly, in the masks Mb and Mc and the masks Mc and Md, the same pattern is also formed in end regions adjacent to each other.
- second openings 42 are provided along the axis C.
- the second opening 42 is provided at a position symmetrical to the first opening 41 with respect to the axis C (a position facing the axis C across the axis C).
- the second openings 42a to 42d are formed, for example, in the same dimension as the first openings 41a to 41d in the circumferential direction and the dimension in the axis C direction.
- the first openings 41a to 41d and the second openings 42a to 42d are arranged so as to be shifted from each other in the circumferential direction of the cylindrical surface 40a.
- the rotation mechanism is a part of the drive device ACM.
- a rotation mechanism for example, it may be a part of a gear mechanism that rotates the holding unit 40, or may be a mover (magnet unit or coil unit) of a linear motor mechanism.
- FIG. 5 is a diagram illustrating a partial configuration of the illumination device IU and a partial configuration of the projection device PU.
- FIG. 6 is a diagram schematically showing the configuration of the illumination device IU and the projection device PU.
- the illumination device IU includes four illumination optical systems IL (illumination optical systems) provided for each of four masks M (Ma to Md) held by the holding unit 40. ILa to ILd).
- the illumination optical system ILa illuminates the mask Ma provided in the first opening 41a.
- the illumination optical system ILb illuminates the mask Mb provided in the first opening 41b.
- the illumination optical system ILc illuminates the mask Mc provided in the first opening 41c.
- the illumination optical system ILd illuminates the mask Md provided in the first opening 41d.
- the illumination optical systems ILa and ILc are arranged on the + X side of the holding unit 40, and illuminate the masks Ma and Mc from the outside to the inside of the holding unit 40, respectively.
- the illumination optical systems ILb and ILd are arranged on the ⁇ X side of the holding unit 40 and illuminate the masks Mb and Md from the outside to the inside of the holding unit 40, respectively.
- the illumination optical systems ILa to ILd are arranged in the Y direction at a pitch corresponding to the pitch of the masks Ma to Md (that is, the distance between adjacent centers), for example.
- FIG. 7 is a diagram schematically showing the configuration of the projection apparatus PU.
- the projection apparatus PU includes four projection optical systems PL (PLa to PLd) respectively corresponding to the four illumination optical systems ILa to ILd and the four masks Ma to Md. )have.
- the illumination optical system ILa and the mask Ma have the projection optical system PLa
- the illumination optical system ILb and the mask Mb have the projection optical system PLb
- the illumination optical system ILc and the mask Mc have the projection optical system PLc
- the illumination optical system ILd and Projection optical systems PLd are respectively arranged corresponding to the masks Md.
- the first image forming units 60 (60a to 60d) of the projection optical systems PLa to PLd are disposed inside the holding unit 40, respectively.
- the first imaging unit 60a is disposed in the optical path of the exposure light ELI from the illumination optical system ILa through the mask Ma.
- the first imaging unit 60b is disposed in the optical path of the exposure light ELI from the illumination optical system ILb through the mask Mb.
- the first imaging unit 60c is disposed in the optical path of the exposure light ELI from the illumination optical system ILc through the mask Mc.
- the first imaging unit 60d is disposed in the optical path of the exposure light ELI from the illumination optical system ILd through the mask Md.
- the first imaging portions 60a to 60d are held by the frame 62 (see FIG. 5).
- the frame 62 is disposed along the axis C inside the holding unit 40.
- the frame 62 and the first image forming units 60 a to 60 d arranged inside the holding unit 40 are held at positions that do not contact the holding unit 40.
- the first imaging units 60a to 60d receive the exposure light ELI from the illumination optical systems ILa to ILd through the masks Ma to Md and the first openings 41a to 41d, respectively, inside the holding unit 40. Then, the light is guided so as to straddle the axis C and is emitted to the outside of the holding portion 40 through the second openings 42a to 42d.
- the first imaging unit 60 forms a pupil plane 65 (65a to 65d) inside the holding unit 40.
- pupil planes 65a to 65d are formed in the vicinity of the axis C (for example, in the vicinity of the incident surface side of the axis C).
- aperture stops 63 are provided on the pupil surfaces 65a to 65d.
- the pupil plane includes a plane conjugate with the entrance pupil or exit pupil of the optical system.
- the first imaging unit 60 forms an intermediate image of the pattern Pm (Pa to Pd) in the vicinity of the second opening 42 (42a to 42d).
- intermediate images 66 (66a to 66d) of the pattern Pm (Pa to Pd) are formed inside the holding portion 40 with respect to the second opening 42 (42a to 42d).
- openable / closable blinds 64 (64a to 64d) are provided at positions where the intermediate images 66 (66a to 66d) are formed.
- the blinds 64a to 64d are controlled to be opened and closed by the control unit CONT.
- the second image forming units 61 (61a to 61d) of the projection optical systems PLa to PLd are arranged outside the holding unit 40, respectively.
- the second image forming units 61a to 61d receive the exposure light ELI emitted from the first image forming units 60a to 60d, respectively, and generate enlarged images of the intermediate images 66a to 66d, and in turn, enlarged images of the patterns Pa to Pd. Projection is performed on the projection areas PAa to PAd.
- the projection areas PAa and PAc are provided on the ⁇ X side with respect to the holding unit 40, and the projection areas PAb and PAd are provided on the + X side with respect to the holding unit 40.
- the guide section 80 on the ⁇ X side of the holding section 40 is disposed below the projection areas PAa and PAc, and the guide section 80 on the + X side of the holding section 40 is disposed below the projection areas PAb and PAd. ing.
- FIG. 8 is a plan view showing the positional relationship between the mask moving device MST and the substrate FB.
- the projection areas PAa to PAd by the projection optical systems PLa to PLd are formed in, for example, a shape in which two sides are parallel along the Y direction (in the present embodiment, a parallelogram shape).
- the projection areas PAa to PAd are formed such that the width of the end in the Y direction (dimension in the X direction) gradually decreases.
- the portion where the width is gradually reduced is referred to as a tapered portion.
- the shapes of the projection areas PAa to PAd are not limited to the parallelogram shape, and may be a trapezoidal shape or a hexagonal shape having a tapered portion at the end in the Y direction, for example.
- the shapes of the projection areas PAa to PAd are set by the blinds 64a to 64d, respectively.
- the projection optical system PLb and the projection optical system PLc have a position in the Y direction of the taper portion formed on the + Y side of the projection area PAb and a position in the Y direction of the taper portion formed on the ⁇ Y side of the projection area PAc.
- the projection optical system PLc and the projection optical system PLd are arranged such that the position of the taper portion formed on the + Y side of the projection area PAc in the Y direction and the position of the taper portion formed on the ⁇ Y side of the projection area PAd in the Y direction. Are arranged to overlap.
- FIG. 8 shows a schematic diagram when the holding unit 40 is viewed in the + Y direction.
- the two first openings adjacent to each other along the direction of the axis C are displaced in the circumferential direction (or two first adjacent to the direction of the axis C).
- the mutual shift amount in the circumferential direction of each pattern of the mask M provided in each opening is S
- the diameter of the holding unit 40 (cylindrical surface 40a) is D
- projection optical systems PLa and PLc first projection optical system
- the pitch in the X-axis direction (generally, the pitch along the moving path of the substrate FB) between the projection area by the projection optical system PLb and PLd (second projection optical system) is generally L, and the projection optical systems PLa to PLd Is set to ⁇ , the shift amount S is set so as to satisfy the following expression.
- S ⁇ ⁇ D / 2 ⁇ L / ⁇ (where L ⁇ ⁇ ⁇ ⁇ ⁇ D / 2)
- the irradiation optical system 21 corresponding to the first projection optical system and the irradiation optical system 21 corresponding to the second projection optical system irradiate the mask M with the exposure light ELI from the mutually facing directions
- the field area of the first projection optical system and the field area of the second projection optical system are located on the opposite side of the mask M with the axis C interposed therebetween, the present invention is not limited to this configuration.
- the shift amount S is a pitch (center) from the field area of the first projection optical system to the field area of the second projection optical system along the circumferential direction of the cylindrical surface 40a with respect to the rotation traveling direction of the mask M.
- the distance is set by the following equation using the distance N, the pitch L, and the projection magnification ⁇ .
- S N ⁇ L / ⁇ (L ⁇ ⁇ ⁇ N)
- the deviation amount S can be further set by the following equation.
- S ⁇ ⁇ D / 2 ⁇ L / ⁇
- the pitch N corresponds to the projection area on the upstream side of the substrate FB from the visual field area of the projection optical system that forms the projection area on the downstream side of the substrate FB along the circumferential direction of the cylindrical surface 40a with respect to the rotation traveling direction of the mask M.
- the pitch to the visual field region of the projection optical system to be formed can be said.
- the substrate processing apparatus FPA configured as described above manufactures display elements (electronic devices) such as organic EL elements and liquid crystal display elements by a roll method under the control of the control unit CONT.
- display elements electronic devices
- CONT control unit
- a belt-like substrate FB wound around a roller (not shown) is attached to the substrate supply unit SU.
- the controller CONT rotates a roller (not shown) so that the substrate FB is sent out from the substrate supply unit SU from this state.
- substrate process part PR is wound up with the roller not shown provided in the board
- the controller CONT causes the illumination device IU to irradiate the pattern Pm of the mask M with the exposure light ELI.
- Projection optical system PL projects enlarged images of pattern Pm onto projection areas PAa to PAd.
- the projection areas PAa to PAd are formed in areas of the substrate FB arranged on the curved portion 83 of the guide portion 80.
- the portion of the substrate FB is curved following the curved portion 83.
- the projection areas PAa to PAd are formed on the curved substrate FB.
- the control unit CONT first performs an exposure process on the upstream side ( ⁇ X side) of the holding unit 40.
- the controller CONT irradiates the masks Ma and Mc patterns Pa and Pc with the exposure light ELI from the illumination optical systems ILa and ILc, respectively.
- the exposure light ELI sequentially passes through the masks Ma and Mc and the first openings 41a and 41c, and enters the first imaging portions 60a and 60c of the projection optical systems PLa and PLc inside the holding portion 40, respectively.
- the exposure light ELI that has passed through the first imaging portions 60a and 60c passes through the second openings 42a and 42c and enters the second imaging portions 61a and 61c.
- the exposure light ELI that has passed through the second imaging units 61a and 61c is irradiated onto the projection areas PAa and PAc. With this operation, an enlarged image of the pattern Pa and an enlarged image of the pattern Pc are projected on the projection areas PAa and PAc, respectively.
- the control unit CONT moves the substrate FB in the + X direction while rotating the holding unit 40 by the driving device ACM.
- the control unit CONT makes the ratio of the moving speed in the length direction of the substrate FB to the moving speed of the mask M along the cylindrical surface 40a equal to the projection magnification (enlargement magnification) of the projection optical system PL.
- the driving device ACM and the driving device ACF are caused to perform the operation while adjusting the rotation speed of the holding unit 40 and the moving speed of the substrate FB.
- the control unit CONT next moves to the downstream side (+ X side) of the holding unit 40.
- the controller CONT irradiates the patterns Pb and Pd of the masks Mb and Md with the exposure light ELI from the illumination optical systems ILb and ILd, respectively.
- the exposure light ELI that has passed through the patterns Pb and Pd passes through the first openings 41b and 41d, the first imaging parts 60b and 60d, and the second openings 42b and 42d in this order, and enters the second imaging parts 61b and 61d. Incident.
- the exposure light ELI that has passed through the second imaging units 61b and 61d is irradiated onto the projection areas PAb and PAd.
- Magnified images of the patterns Pb and Pd are projected on the projection areas PAb and PAd, respectively.
- two regions of the substrate FB separated in the Y direction are sequentially exposed from the + X side to the ⁇ X side by the magnified images of the patterns Pb and Pd projected on the projection regions PAb and PAd, and in the X axis direction.
- strip-shaped exposure areas PBb and PBd are formed on the substrate FB.
- the ⁇ Y side end and the + Y side end of the exposure area PBb are exposed in a state where they overlap the + Y side end of the exposure area PBa and the ⁇ Y side end of the exposure area PBc, respectively.
- the exposure area PBd is exposed with its ⁇ Y side end overlapped with the + Y side end of the exposure area PBc. Further, the control unit CONT continues to rotate the holding unit 40 so that the moving speed in the length direction of the substrate FB with respect to the moving speed of the mask M along the cylindrical surface 40a becomes equal to the projection magnification of the projection optical system PL. And the moving speed of the substrate FB are adjusted by the driving device ACM and the driving device ACF, respectively.
- a portion exposed only by a single image projected onto the projection areas PAa to PAd, a part of the image projected onto the projection area PAa, and the projection area PAb are projected.
- a portion exposed by a portion of the image, a portion exposed by a portion of the image projected on the projection region PAb and a portion of the image projected on the projection region PAc, and the portion projected by the projection region PAc A part to be exposed is formed by a part of the image and a part of the image projected onto the projection area PAd.
- the mask moving device MST that holds the mask M having the pattern Pm and moves the mask M is formed in a cylindrical shape, and the pattern Pm is disposed on the cylindrical surface 40a.
- the holding unit 40 that detachably holds the mask M along the cylindrical surface 40a is provided, the image of the pattern Pm can be efficiently exposed on the belt-like substrate FB. Accordingly, it is possible to provide the moving device MST that can efficiently manufacture the display element on the belt-like substrate FB.
- the substrate guide device FST that guides the substrate FB is configured to use the guide unit 80 that supports the substrate FB, but is not limited thereto.
- a guide roller 140 having a cylindrical surface having the same diameter as the cylindrical surface 40 a of the holding unit 40 may be used.
- the control unit CONT controls the driving device ACM of the holding unit 40 and the driving device (roller driving unit) ACF of the guide roller 140 in synchronization. Specifically, the control unit CONT determines that the ratio of the moving speed of the substrate FB along the surface of the guide roller 140 to the moving speed of the mask M along the cylindrical surface 40a is the projection magnification (enlargement magnification) of the projection optical system PL. ) To control the driving of the driving device ACM and the driving device ACF.
- the illumination device IU is disposed outside the mask moving device MST (holding unit 40), the mask M is a transmission mask, and the mask M is transmitted from the outside of the holding unit 40, so that the exposure light ELI is transmitted.
- the mask M is a transmission mask
- the exposure light ELI is transmitted.
- a reflective mask is used as the mask M, and the exposure light ELI is routed from the illumination device IU to the inside of the holding unit 40 through the end of the holding unit 40 in the axis C direction.
- the exposure light ELI may be passed through the holding unit 40 by reflecting the exposure light ELI to the mask M inside the holding unit 40.
- the configuration of the substrate processing apparatus FPA using one exposure apparatus EX has been described as an example, but the present invention is not limited to this.
- a plurality of (for example, two) exposure apparatuses EX may be arranged.
- an exposure pattern Pf1 by the first exposure apparatus EX1 and an exposure pattern Pf2 by the second exposure apparatus EX2 are formed on the substrate FB.
- the holding unit 40 is configured to hold the four masks M.
- the present invention is not limited to this.
- four patterns Pa to Pd are formed.
- a configuration may be adopted in which one mask M is held by the holding unit 40.
- patterns Pa to Pd are formed at positions corresponding to the first openings 41a to 41d of the holding section 40, and an opening Po is formed at positions corresponding to the second openings 42a to 42d. To keep. With this configuration, it is possible to easily attach, remove and replace the mask M.
- the said embodiment although it was set as the structure which forms the 1st opening part 41 and the 2nd opening part 42 1 each in the circumferential direction of the holding
- three first openings 141 and three second openings 142 are formed in the circumferential direction of the holding part 40, and masks M1, M2, M3 corresponding to the first openings 141, respectively. It does not matter even if it is the composition which forms.
- the first opening portion and the second opening portion may be formed in the circumferential direction of the holding portion 40 by two or four or more.
- the mask M when the mask M is held by the holding unit 40, the mask M is curved so that the peripheral portion of the mask M follows the shape of the ring portion 43 of the holding unit 40.
- a gas supply pump 90 or the like may be used to supply gas into the holding unit 40 and adjust the curvature of the mask M using the pressure inside the holding unit 40. Absent.
- position information for example, X direction, Y direction, Z direction
- the sensor (detection unit) 91 for detecting the coordinates of the above may be provided.
- the eccentric rotation of the holding unit 40 can be detected by detecting a change in the position coordinate of the cylindrical surface 40a.
- the sensor 91 may be configured to detect position information of a predetermined position of the mask M instead of position information of the fixed position of the cylindrical surface 40a.
- an adjustment unit that adjusts the imaging position of the exposure light ELI according to the detection result of the sensor 91 may be provided.
- a parallel plate glass 67, a focus adjustment lens 68, and the like are provided as part of the first image forming unit 60 or separately from the first image forming unit 60.
- the parallel flat glass 67 can be tilted with respect to the optical axis 60x of the first imaging unit 60, and the focus adjustment lens 68 is movable (variable in position) along the optical axis 60x.
- the parallel flat glass 67 is preferably tiltable (rotatable) about an axis that intersects the optical axis 60x and is parallel to the axis C of the cylindrical surface 40a.
- the first imaging unit 60 forms the pupil plane 65 on the upstream side of the optical path from the axis C of the holding unit 40, and forms the intermediate image 66 of the pattern Pm inside the holding unit 40.
- the arrangement is not limited to this.
- the pupil plane 65 may be formed on the downstream side of the optical path from the axis C of the holding unit 40.
- the intermediate image 66 of the pattern Pm may be formed outside the holding unit 40.
- the pupil plane 65 may be formed outside the holding unit 40.
- a blind 48 may be provided in the first opening 41.
- a clamp mechanism 45 that holds the mask M in between may be arranged.
- the clamp mechanism 45 can be disposed, for example, in the connecting portion 44 of the holding portion 40.
- the clamp mechanism 45 may be provided in the ring portion 43 of the holding portion 40.
- the second imaging unit 61 can be omitted and the image of the pattern Pm can be projected onto the substrate.
- FIG. 18 is a flowchart showing a part of a manufacturing process when manufacturing a semiconductor device as a micro device.
- a metal film is deposited on a belt-like substrate.
- a photoresist is applied on the metal film of the substrate.
- the exposure apparatus EX is used to sequentially expose and transfer the pattern image on the mask M to each shot area of the substrate via the projection apparatus PU (projection optical systems PL1 to PL4). Process).
- step S16 the photoresist on the substrate is developed (development process), and then in step S18, the substrate is etched through the resist pattern, whereby a circuit pattern corresponding to the pattern on the mask is obtained. Are formed in each shot region of the substrate. Thereafter, a device pattern such as a semiconductor element is manufactured by forming a circuit pattern of an upper layer. According to the semiconductor device manufacturing method described above, a semiconductor device having an extremely fine circuit pattern can be efficiently manufactured with high throughput.
- a liquid crystal display element as a micro device can be manufactured by forming a predetermined pattern (circuit pattern, electrode pattern, etc.) on a belt-like substrate.
- a predetermined pattern circuit pattern, electrode pattern, etc.
- FIG. 19 is a flowchart showing a part of a manufacturing process in manufacturing a liquid crystal display element as a micro device.
- the pattern of the mask M is transferred and exposed to a photosensitive substrate (for example, a glass or plastic substrate coated with a resist) using the exposure apparatus EX of the present embodiment.
- a photosensitive substrate for example, a glass or plastic substrate coated with a resist
- An optical lithography process is performed.
- a predetermined pattern including a large number of electrodes and the like is formed on the photosensitive substrate.
- the exposed substrate undergoes steps such as a development step, an etching step, and a reticle peeling step, whereby a predetermined pattern is formed on the substrate, and the process proceeds to the next color filter forming step S22.
- a large number of sets of three dots corresponding to R (Red), G (Green), and B (Blue) are arranged in a matrix or three of R, G, and B
- a color filter is formed by arranging a plurality of stripe filter sets in the horizontal scanning line direction.
- cell assembly process S24 is performed after color filter formation process S22.
- a liquid crystal panel liquid crystal cell is assembled using the substrate having the predetermined pattern obtained in the pattern formation step S20 and the color filter obtained in the color filter formation step S22.
- liquid crystal is injected between the substrate having the predetermined pattern obtained in the pattern forming step S20 and the color filter obtained in the color filter forming step S22. ). Thereafter, in a module assembly step S26, components such as an electric circuit and a backlight for performing a display operation of the assembled liquid crystal panel (liquid crystal cell) are attached to complete the liquid crystal display element. According to the above-described method for manufacturing a liquid crystal display element, a liquid crystal display element having an extremely fine circuit pattern can be efficiently manufactured with high throughput.
- EX ... exposure device M ... mask Pm ... pattern IU ... illumination device MST ... mask moving device PU ... projection device FST ... substrate guide device ELI ... exposure light ACM, ACF ... drive device PL ... projection optical system PA ... projection area FPA ... substrate Processing device FB ... Substrate SU ... Substrate supply unit PR ... Substrate processing unit CL ... Substrate recovery unit CONT ... Control unit
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Abstract
Description
本願は、2010年4月13日に出願された米国仮出願第61/323,514号に基づき優先権を主張し、その内容をここに援用する。
図1は、本発明の実施の形態に係る基板処理装置FPAの構成を示す図である。
図1に示すように、基板処理装置FPAは、帯状の基板(例えば、帯状のフィルム部材)FBを供給する基板供給部SU、基板FBの表面(被処理面)に対して処理を行う基板処理部PR、基板FBを回収する基板回収部CL、及び、これらの各部を制御する制御部CONTを有している。
-k・λ/NA2≦δ≦+k・λ/NA2
で表される。ここで、λは露光光ELIの波長(中心波長)、NAは投影光学系PLの像側の開口数、kはプロセス係数(結像に関与する諸条件に基づいて決定される定数)である。
本実施形態では、湾曲部83を設けることで、案内部80に案内される基板FBは、湾曲部83の表面形状に倣って湾曲して案内されるので、平面状のまま案内される場合と比較して、支持面80a(投影領域)における基板FBに、皺や弛みが生じ難くなる。そのため、基板FBのアライメントや焦点合わせの精度を向上させることができる。例えば、上流側ローラー81、下流側ローラー82及び駆動装置ACFを制御して、基板FBに、伸びが生じない程度の大きさの張力を加えて、基板FBを湾曲部83の表面形状に倣わせるように設定することができる。
図3、図5、図6に示すように、照明装置IUは、保持部40に保持される4枚のマスクM(Ma~Md)ごとに設けられた4つの照明光学系IL(照明光学系ILa~ILd)を有している。照明光学系ILaは、第一開口部41aに設けられるマスクMaを照明する。照明光学系ILbは、第一開口部41bに設けられるマスクMbを照明する。照明光学系ILcは、第一開口部41cに設けられるマスクMcを照明する。照明光学系ILdは、第一開口部41dに設けられるマスクMdを照明する。このうち、照明光学系ILa及びILcは、保持部40の+X側に配置されており、保持部40の外部から内部に向かってマスクMa,Mcをそれぞれ照明する。また、照明光学系ILb及びILdは、保持部40の-X側に配置されており、保持部40の外部から内部に向かってマスクMb,Mdをそれぞれ照明する。照明光学系ILa~ILdは、例えばマスクMa~Mdのピッチ(すなわち、隣り合う中心間距離)に対応するピッチでY方向に配置されている。
図2、図3、図5~図7に示すように、投影装置PUは、4つの照明光学系ILa~ILd及び4つのマスクMa~Mdにそれぞれ対応した4つの投影光学系PL(PLa~PLd)を有している。照明光学系ILa及びマスクMaには投影光学系PLaが、照明光学系ILb及びマスクMbには投影光学系PLbが、照明光学系ILc及びマスクMcには投影光学系PLcが、照明光学系ILd及びマスクMdには投影光学系PLdが、それぞれ対応して配置されている。
図8に示すように、投影光学系PLa~PLdによる投影領域PAa~PAdは、例えばY方向に沿って2辺が平行な形状(本実施形態では、平行四辺形状)に形成されている。投影領域PAa~PAdは、Y方向の端部の幅(X方向の寸法)が徐々に小さくなるように形成されている。以下、この幅が徐々に小さくなっている部分をテーパー部分と表記する。なお、投影領域PAa~PAdの形状は、平行四辺形状に限定されるものではなく、例えばY方向の端部にテーパー部を有する台形状または六角形状とすることもできる。投影領域PAa~PAdの形状は、それぞれブラインド64a~64dによって設定される。
S=π×D/2-L/β(ただし、L≦β×π×D/2)
S=N-L/β(ただし、L≦β×N)
また、ピッチNに対応する円筒面40aの円弧の中心角φ(ラジアン)を用いると、ずれ量Sは、さらに次式によって設定できる。
S=φ×D/2-L/β
なお、ピッチNは、マスクMの回転進行方向に関して円筒面40aの円周方向に沿った基板FBの下流側に投影領域を形成する投影光学系の視野領域から基板FBの上流側に投影領域を形成する投影光学系の視野領域までのピッチと言い換えることができる。
例えば、上記実施形態では、基板FBを案内する基板案内装置FSTにおいて、基板FBを支持する案内部80を用いる構成としたが、これに限られることは無い。例えば図10に示すように、保持部40の円筒面40aと同一径の円筒面を備えた案内ローラー140を用いる構成としても構わない。
また、図17の構成において、第2結像部61を省いて、パターンPmの像を基板上に投影するようにすることもできる。
Claims (20)
- 所定の円筒面に沿って設けられたパターンを前記円筒面の円周方向に回転させつつ前記パターンを基板に転写する露光装置であって、
前記パターンのうち前記円筒面の第1領域に配置される第1部分パターンの像を第1投影領域に投影する第1投影光学系と、
前記パターンのうち前記第1領域と異なる第2領域に配置される第2部分パターンの像を、前記第1投影領域と異なる第2投影領域に投影する第2投影光学系と、
前記パターンの前記円周方向への回転に同期して、前記第1投影領域及び前記第2投影領域に前記基板を案内する案内装置と、
を備える露光装置。 - 前記第1部分パターンと前記第2部分パターンとは、前記円筒面の中心軸線に沿って相互に所定間隔を置いて設けられるとともに、前記円筒面の円周方向に相互に所定量ずれて設けられ、
前記パターンの回転進行方向に関して前記円筒面の円周方向に沿った前記第1領域から前記第2領域までのピッチNと、前記案内装置による前記基板の移動経路に沿った前記第1投影領域と前記第2投影領域とのピッチLと、前記第1投影光学系及び前記第2投影光学系の投影倍率βと、前記所定量Sとは、S=N-L/β及びL≦β×Nの関係を満たす
請求項1に記載の露光装置。 - 前記第1部分パターンと前記第2部分パターンとは、前記円筒面の中心軸線に沿って相互に所定間隔を置いて設けられるとともに、前記円筒面の円周方向に相互に所定量ずれて設けられ、
前記円筒面の直径Dと、前記案内装置による前記基板の移動経路に沿った前記第1投影領域と前記第2投影領域とのピッチLと、前記第1投影光学系及び前記第2投影光学系の投影倍率βと、前記所定量Sとは、S=π×D/2-L/β及びL≦β×π×D/2の関係を満たす
請求項1に記載の露光装置。 - 前記所定間隔は、前記第1投影領域の端部位置と前記第2投影領域の端部位置とが、前記第1投影光学系及び前記第2投影光学系によって前記基板の移動経路上において少なくとも一部重なるように設定されている
請求項2又は請求項3に記載の露光装置。 - 前記案内装置は、前記第1投影領域及び第2投影領域に位置する前記基板をそれぞれ支持する第1支持部及び第2支持部を有する
請求項1から請求項4のいずれか一項に記載の露光装置。 - 前記第1支持部及び前記第2支持部は、前記円筒面の湾曲方向に対して、それぞれ前記第1投影光学系及び前記第2投影光学系によって光学的に対応する方向に湾曲した第1湾曲部及び第2湾曲部を有し、該第1及び第2湾曲部に沿って前記基板を湾曲させて該基板を支持する
請求項5に記載の露光装置。 - 前記第1湾曲部及び前記第2湾曲部は、それぞれ前記第1投影光学系及び前記第2投影光学系に向けて凸状に湾曲されている
請求項6に記載の露光装置。 - 前記第1湾曲部及び前記第2湾曲部は、前記円筒面と同一の曲率で湾曲されている
請求項6又は請求項7に記載の露光装置。 - 前記第1支持部及び前記第2支持部は、それぞれ表面に沿って前記基板を案内する案内ローラーと、該案内ローラーを前記表面の円周方向に沿って回転させるローラー駆動部と、を有し、
前記第1湾曲部及び前記第2湾曲部は、それぞれ対応する前記案内ローラーの表面部に設けられている
請求項6から請求項8のいずれか一項に記載の露光装置。 - 前記ローラー駆動部は、前記パターンの回転と同期して前記案内ローラーを回転させる
請求項9に記載の露光装置。 - 前記第1投影光学系及び前記第2投影光学系は、
前記円筒面の内側に配置されて、前記パターンから発した光を前記円筒面の外側に射出させる第1光学系と、
前記第1光学系を介した前記光を前記第1投影領域又は前記第2投影領域に照射して前記パターンの像を投影する第2光学系と、
をそれぞれ含む請求項1から請求項10のいずれか一項に記載の露光装置。 - 前記第1光学系は、前記円筒面の近傍に前記パターンの中間像を結像する
請求項11に記載の露光装置。 - 前記第1光学系は、前記中間像の結像位置を調整する調整部を含む
請求項12に記載の露光装置。 - 前記パターンの位置情報を検出する検出部を備え、
前記調整部は、前記検出部の検出結果に基づいて前記中間像の結像位置を調整する
請求項13に記載の露光装置。 - 前記第1投影光学系及び前記第2投影光学系は、それぞれ前記円筒面の近傍に該第1投影光学系の瞳面及び該第2投影光学系の瞳面を形成する
請求項1から請求項11のいずれか一項に記載の露光装置。 - 所定の円筒面に沿って設けられたパターンを前記円筒面の円周方向に回転させつつ前記パターンを基板に転写する露光装置であって、
前記パターンの像を投影領域に投影する投影光学系と、
前記パターンの前記円周方向への回転に同期して、前記投影領域に前記基板を案内し、且つ前記投影領域に位置する前記基板を湾曲させて支持する湾曲部を有する案内装置と、を備える露光装置。 - 前記湾曲部は、投影光学系に向けて凸状に湾曲されている
請求項16に記載の露光装置。 - 前記湾曲部は、前記円筒面と同一の曲率半径で湾曲されている
請求項16又は請求項17に記載の露光装置。 - 帯状の基板を処理する基板処理装置であって、
前記基板を該基板の長手方向に搬送する基板搬送部と、
前記基板搬送部による前記基板の搬送経路に沿って設けられ、該搬送経路に沿って搬送される前記基板に対して処理を行う基板処理部と、を備え、
前記基板処理部は、前記基板にパターンを転写する請求項1から請求項18のいずれか一項に記載の露光装置を含む
基板処理装置。 - 基板を処理してデバイスを製造するデバイス製造方法であって、
請求項1から請求項19のいずれか一項に記載の露光装置を用いて、前記基板にパターンを転写することと、
前記パターンが転写された前記基板を該パターンに基づいて加工することと、
を含むデバイス製造方法。
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US20130027684A1 (en) | 2013-01-31 |
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CN102834778A (zh) | 2012-12-19 |
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