WO2016159176A1 - 露光装置、フラットパネルディスプレイの製造方法、デバイス製造方法、及び露光方法 - Google Patents
露光装置、フラットパネルディスプレイの製造方法、デバイス製造方法、及び露光方法 Download PDFInfo
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- WO2016159176A1 WO2016159176A1 PCT/JP2016/060551 JP2016060551W WO2016159176A1 WO 2016159176 A1 WO2016159176 A1 WO 2016159176A1 JP 2016060551 W JP2016060551 W JP 2016060551W WO 2016159176 A1 WO2016159176 A1 WO 2016159176A1
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- substrate
- exposure
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- holding unit
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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
- G03F7/70058—Mask illumination systems
- G03F7/70141—Illumination system adjustment, e.g. adjustments during exposure or alignment during assembly of illumination system
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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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2037—Exposure with X-ray radiation or corpuscular radiation, through a mask with a pattern opaque to that radiation
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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
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2002—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image
- G03F7/201—Exposure; Apparatus therefor with visible light or UV light, through an original having an opaque pattern on a transparent support, e.g. film printing, projection printing; by reflection of visible or UV light from an original such as a printed image characterised by an oblique exposure; characterised by the use of plural sources; characterised by the rotation of the optical device; characterised by a relative movement of the optical device, the light source, the sensitive system or the mask
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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
- G03F7/70483—Information management; Active and passive control; Testing; Wafer monitoring, e.g. pattern monitoring
- G03F7/7055—Exposure light control in all parts of the microlithographic apparatus, e.g. pulse length control or light interruption
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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
- G03F7/707—Chucks, e.g. chucking or un-chucking operations or structural details
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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
- G03F7/70716—Stages
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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
- G03F7/70716—Stages
- G03F7/70725—Stages control
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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
- G03F7/70775—Position control, e.g. interferometers or encoders for determining the stage position
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70808—Construction details, e.g. housing, load-lock, seals or windows for passing light in or out of apparatus
- G03F7/70825—Mounting of individual elements, e.g. mounts, holders or supports
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6838—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping with gripping and holding devices using a vacuum; Bernoulli devices
Definitions
- the present invention relates to an exposure apparatus, a flat panel display manufacturing method, a device manufacturing method, and an exposure method, and more specifically, an exposure apparatus and method for scanning and exposing an object by relatively driving the object with respect to illumination light, and the present invention relates to a flat panel display manufacturing method and a device manufacturing method using the exposure apparatus or method.
- a mask or reticle such as liquid crystal display elements and semiconductor elements (such as integrated circuits)
- a glass plate or a wafer hereinafter referred to as “mask”.
- substrate Collectively referred to as a “substrate”)
- step-and-scan type exposure apparatus so-called “so-called” that transfers a pattern formed on a mask onto a substrate using an energy beam while moving in synchronization along a predetermined scanning direction. Scanning steppers (also called scanners)) are used.
- a substrate holder for holding the substrate in order to position the substrate in a horizontal plane at high speed and with high accuracy, a substrate holder for holding the substrate is moved in a direction of three degrees of freedom in the horizontal plane (scan direction, cross scan direction, and rotation in the horizontal plane). In the direction) is known.
- the substrate holder With the recent increase in size of substrates, the substrate holder becomes larger and heavier, and the substrate positioning tends to be difficult.
- the object is irradiated with illumination light through an optical system, and the object is relatively driven with respect to the illumination light.
- An exposure apparatus that scans and exposes a plurality of regions of an object, and a support unit that levitates and supports at least a first region of the plurality of regions, and a holding unit that holds the object levitated and supported by the support unit.
- the support unit and the holding unit are driven in the first driving system for driving the support unit, the second drive system for driving the holding unit, and the scanning exposure for the first region.
- a control system for controlling the first and second drive systems.
- an exposure apparatus that irradiates an object with illumination light, moves the object relative to the illumination light in a first direction, and scans and exposes a plurality of regions of the object.
- the support unit for levitating and supporting at least a first region of the plurality of regions, the holding unit for holding the object levitated and supported by the support unit, the support unit, the first direction and the A first drive system that drives in one direction of a second direction that intersects the first direction, and the holding portion with respect to the support portion so that the first region deviates from the support portion with respect to the other direction.
- a second drive system that is relatively driven.
- an exposure apparatus that irradiates an object with illumination light via an optical system, scans the object by relatively driving the object with respect to the illumination light
- a support unit for levitating and supporting the object a holding unit for holding the object levitated and supported by the support unit, a lattice member provided with a plurality of lattice regions, and a head for irradiating the lattice member with a measurement beam
- an acquisition unit that acquires information on the position of the holding unit, wherein one of the lattice member and the head is a third exposure apparatus provided in the holding unit.
- a flat including exposing the object using any one of the first to third exposure apparatuses of the present invention and developing the exposed object. It is a manufacturing method of a panel display.
- a device comprising: exposing the object using any one of the first to third exposure apparatuses of the present invention; and developing the exposed object It is a manufacturing method.
- an exposure method for irradiating an object with illumination light moving the object relative to the illumination light in a first direction, and scanning and exposing a plurality of regions of the object, respectively. And at least a first region of the plurality of regions is supported by levitation using a support unit, the object supported by levitation by the support unit is held using a holding unit, and the support unit Using the first drive system in one direction of the first direction and the second direction intersecting the first direction, and the holding portion is moved with respect to the other direction.
- a second exposure method including: driving the support part relative to the support part using a second drive system so as to disengage the support part.
- the present invention is an exposure method in which an object is irradiated with illumination light via an optical system, the object is relatively driven with respect to the illumination light, and the object is scanned and exposed.
- the object is levitated and supported using a support part, the object levitated and supported by the support part is held using a holding part, a lattice member provided with a plurality of lattice regions, and the lattice member And acquiring information on the position of the holding unit using an acquisition unit having a head that irradiates a measurement beam, wherein one of the lattice member and the head is provided in the holding unit.
- 3 is an exposure method.
- the present invention is a flat including exposing the object using any one of the first to third exposure methods of the present invention and developing the exposed object. It is a manufacturing method of a panel display.
- a device comprising: exposing the object using any one of the first to third exposure methods of the present invention; and developing the exposed object. It is a manufacturing method.
- FIG. 3 is a partially enlarged view of a cross section taken along line AA in FIG. 2. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 1) of 1st Embodiment.
- FIG. 11A is a plan view of a substrate stage apparatus according to a modification (No. 7) of the first embodiment, and FIG.
- FIG. 11B is a cross-sectional view of the substrate stage apparatus shown in FIG. is there. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 8) of 1st Embodiment. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 9) of 1st Embodiment. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 10) of 1st Embodiment. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 11) of 1st Embodiment. It is a figure which shows the substrate stage apparatus which concerns on the modification (the 12) of 1st Embodiment.
- FIG. 17A is a plan view of the substrate stage apparatus according to the second embodiment, and FIG.
- FIG. 17B is a diagram showing a state after the substrate is Y-stepped from the state shown in FIG. It is.
- FIG. 18A is a plan view of a substrate stage device according to a modification of the second embodiment
- FIG. 18B is a state after the substrate is Y-stepped from the state shown in FIG. FIG.
- It is sectional drawing of the substrate holder which concerns on 3rd Embodiment.
- It is a top view of the substrate stage device concerning a 4th embodiment.
- FIG. 21A is a plan view of a substrate carrier according to the fourth embodiment
- FIG. 21B is a plan view of a substrate holder according to the fourth embodiment.
- FIG. 22A is a plan view of a substrate carrier according to a modification of the fourth embodiment
- FIG. 22B is a plan view of a substrate holder according to a modification of the fourth embodiment. It is a figure which shows the substrate stage apparatus which concerns on 5th Embodiment.
- FIG. 1 schematically shows a configuration of a liquid crystal exposure apparatus 10 according to the first embodiment.
- the liquid crystal exposure apparatus 10 employs a step-and-scan method in which a rectangular (square) glass substrate P (hereinafter simply referred to as a substrate P) used in, for example, a liquid crystal display device (flat panel display) is an exposure object.
- a projection exposure apparatus a so-called scanner.
- the liquid crystal exposure apparatus 10 includes an illumination system 12, a mask stage 14 that holds a mask M on which a pattern such as a circuit pattern is formed, a projection optical system 16, a pair of stage mounts 18, a surface (a surface facing the + Z side in FIG. 1). ) Has a substrate stage device 20 for holding a substrate P coated with a resist (sensitive agent), a control system for these, and the like.
- the direction in which the mask M and the substrate P are relatively scanned with respect to the projection optical system 16 at the time of exposure is defined as the X-axis direction
- the direction orthogonal to the X-axis in the horizontal plane is defined as the Y-axis direction, the X-axis, and the Y-axis.
- the orthogonal direction as the Z-axis direction and the rotation (tilt) directions around the X-axis, Y-axis, and Z-axis as the ⁇ x, ⁇ y, and ⁇ z directions, respectively. Further, description will be made assuming that the positions in the X-axis, Y-axis, and Z-axis directions are the X position, the Y position, and the Z position, respectively.
- the illumination system 12 is configured similarly to the illumination system disclosed in, for example, US Pat. No. 5,729,331.
- the illumination system 12 irradiates light emitted from a light source (not shown) (for example, a mercury lamp) through exposure mirrors (not shown), dichroic mirrors, shutters, wavelength selection filters, various lenses, and the like. ) Irradiate the mask M as IL.
- a light source for example, a mercury lamp
- the illumination light IL for example, light such as i-line (wavelength 365 nm), g-line (wavelength 436 nm), h-line (wavelength 405 nm), or the combined light of the i-line, g-line, and h-line is used.
- the mask stage 14 holds a light transmission type mask M.
- the mask stage 14 drives the mask M with a predetermined long stroke in the X-axis direction (scan direction) with respect to the illumination system 12 (illumination light IL) via a drive system (not shown) including a linear motor, for example. Slightly drives in the Y-axis direction and ⁇ z direction.
- the position information of the mask M in the horizontal plane is obtained by a mask stage position measurement system (not shown) including a laser interferometer, for example.
- the projection optical system 16 is disposed below the mask stage 14.
- the projection optical system 16 is a so-called multi-lens type projection optical system having the same configuration as the projection optical system disclosed in, for example, US Pat. No. 6,552,775, and forms, for example, an erect image. It has multiple optical systems that are telecentric on both sides.
- the illumination area passes through the projection optical system 16 by the illumination light that has passed through the mask M.
- a projection image (partial pattern image) of the pattern of the mask M inside is formed in an exposure region on the substrate P.
- the mask M moves relative to the illumination area (illumination light IL) in the scanning direction
- the substrate P moves relative to the exposure area (illumination light IL) in the scanning direction.
- One shot area is scanned and exposed, and the pattern formed on the mask M (the entire pattern corresponding to the scanning range of the mask M) is transferred to the shot area.
- the illumination area on the mask M and the exposure area (illumination light irradiation area) on the substrate P are optically conjugate with each other by the projection optical system 16.
- the pair of stage bases 18 are each composed of a member extending in the Y-axis direction, and are spaced apart in the X-axis direction.
- the stage base 18 is installed on the floor 11 of the clean room via a plurality of vibration isolation devices 17. As shown in FIG. 4, for example, two Y linear guides 19a extending in the Y-axis direction are fixed to the upper surface of the stage base 18 at predetermined intervals in the X-axis direction.
- the substrate stage apparatus 20 includes a pair of base frames 22, an auxiliary guide frame 24, a Y coarse movement stage 30, an X coarse movement stage 40, a weight cancellation apparatus 50, a Y step guide 56, a substrate table 60, and a substrate holder. 68 (not shown in FIG. 1, refer to FIG. 4) and a substrate carrier 70.
- the base frame 22 and the auxiliary guide frame 24 are composed of members extending in the Y-axis direction.
- One base frame 22 is on the + X side of the + X side stage base 18, the other base frame 22 is on the -X side of the -X side stage base 18, and the auxiliary guide frame 24 is on the pair of stage bases 18. In between, they are arranged in a state of being vibrationally separated from each other by a pair of stage mounts 18.
- a pair of Y carriages 34 are placed above the pair of base frames 22 so as to be separated from each other in the Y-axis direction.
- the Y carriage 34 is made of a plate member having a rectangular shape in plan view.
- the pair of Y carriages 34 on the + X side base frame 22 and the pair of Y carriages 34 on the ⁇ X side base frame 22 are connected by a connecting plate 36.
- a Y linear guide device for linearly guiding the Y carriage 34 in the Y-axis direction between the Y carriage 34 and the corresponding base frame 22, and the Y carriage 34 with a predetermined stroke in the Y-axis direction.
- a Y driving system 33 (some elements are not shown) including a Y actuator (for example, a linear motor) for driving and a Y linear encoder used for obtaining Y position information of the Y carriage 34 is provided.
- An auxiliary carriage 35 is placed on the auxiliary guide frame 24.
- the auxiliary carriage 35 is made of a plate-like member that extends in the Y-axis direction.
- a Y linear guide device 33a is provided for guiding the auxiliary carriage 35 in a straight line in the Y-axis direction.
- the Y coarse movement stage 30 has a pair of X beams 32 as shown in FIG.
- the pair of X beams 32 are each composed of a member having a rectangular YZ section extending in the X-axis direction, and are arranged in parallel to each other at a predetermined interval in the Y-axis direction.
- the above-described Y carriage 34 is fixed to the lower surfaces of the X beam 32 in the vicinity of both ends in the longitudinal direction. Accordingly, the pair of X beams 32 are driven integrally with a predetermined stroke in the Y-axis direction on the pair of base frames 22.
- the pair of X beams 32 are connected at the center in the longitudinal direction by the auxiliary carriage 35 (not shown in FIG. 2, refer to FIG. 1).
- the X coarse movement stage 40 has a pair of X tables 42 as shown in FIG.
- the pair of X tables 42 are each formed of a plate-like member having a rectangular shape in plan view extending in the Y-axis direction, and are arranged in parallel to each other while being separated in the X-axis direction.
- Each of the pair of X tables 42 is stretched over the pair of X beams 32.
- an X linear guide device for linearly guiding the X table 42 in the X-axis direction and a predetermined stroke in the X-axis direction are provided between the X table 42 and the X beam 32.
- An X drive system 43 (some elements are not shown) including an X actuator (for example, a linear motor) for driving with X and an X linear encoder used for obtaining X position information of the X table 42 is provided. .
- the pair of X tables 42 are connected by a pair of connecting plates 44.
- the pair of connecting plates 44 are each formed of a plate-like member having a rectangular shape in plan view and extending in the X-axis direction, and are disposed apart from each other in the Y-axis direction. Therefore, the pair of X tables 42 are driven integrally with a predetermined stroke in the X-axis direction on the pair of X beams 32. Further, the pair of X tables 42 move integrally with the pair of X beams 32 in the Y-axis direction by the action of the X linear guide device included in the X drive system 43 (see FIG. 1).
- the weight cancellation device 50 is disposed in an opening defined by the pair of X tables 42 and the pair of connecting plates 44.
- the structure of the weight cancellation apparatus 50 is the same as that of the weight cancellation apparatus disclosed in, for example, US Patent Application Publication No. 2010/0018950, and generates a force upward in the direction of gravity to generate the substrate table 60 and the substrate.
- the self-weight of the system including the holder 68 (not shown in FIG. 3A, see FIG. 4) is supported.
- the weight canceling device 50 is mechanically vibrated with respect to the direction crossing the XY plane with respect to the X coarse movement stage 40 at the center of gravity height position via the plurality of flexures 52. Are connected in a separated state.
- the weight cancellation device 50 is pulled by the X coarse movement stage 40 through at least one of the plurality of flexures 52, and moves integrally with the X coarse movement stage 40 in at least one of the X axis direction and the Y axis direction. .
- the Y step guide 56 is made of a member having a rectangular YZ section extending in the X-axis direction, and is disposed between the pair of X beams 32.
- the weight canceling device 50 described above is placed on the Y step guide 56 in a non-contact state via, for example, an air bearing.
- the Y step guide 56 includes a plurality of Y linear guides 19 a fixed to the upper surface of the stage base 18 and a plurality of Y slide members 19 b (overlapping in the depth direction of the paper) fixed to the lower surface of the Y step guide 56. It is guided straight in the Y-axis direction via a plurality of Y linear guide devices 19 configured.
- the Y step guide 56 is mechanically connected to the pair of X beams 32 via a plurality of flexures 58, and integrally with the X coarse movement stage 40 in the Y axis direction.
- the weight cancellation device 50 moves in the X axis direction on the stationary Y step guide 56, and the X coarse movement stage 40 moves in the Y axis direction. It moves in the Y-axis direction together with the Y-step guide 56 (including the case involving movement in the X-axis direction). Therefore, the weight cancellation device 50 does not fall off from the Y step guide 56 regardless of its position.
- the substrate table 60 is made of a rectangular member in plan view with the X-axis direction as the longitudinal direction. As shown in FIG. 4, the center of the substrate table 60 is supported by the weight canceling device 50 from below via a spherical bearing device 54.
- the spherical bearing device 54 supports the substrate table 60 from below so as to freely swing (tilt operation) in the ⁇ x and ⁇ y directions.
- the spherical bearing device 54 is supported in a non-contact manner from below on the weight cancellation device 50 via an air bearing (not shown), and can move relative to the weight cancellation device 50 along a horizontal plane (XY plane). .
- a pseudo spherical bearing device as disclosed in, for example, US Patent Application Publication No. 2010/0018950 may be used.
- the substrate table 60 is mechanically connected to the X coarse movement stage 40 via a plurality of flexures 62 (for example, four in this embodiment).
- One end of the flexure 62 is connected to the corner of the substrate table 60, and the other end is connected to a column 61 fixed to the corner of the X coarse movement stage 40.
- the flexure 62 includes a steel plate disposed substantially parallel to the XY plane, and a smoothing device (for example, a ball joint) disposed at both ends of the steel plate, and the substrate table 60 with respect to the X coarse movement stage 40 is XY.
- the substrate table 60 While restraining with respect to the direction parallel to the plane (X axis, Y axis, ⁇ z direction), the substrate table 60 is in a very small range with respect to the direction (Z axis, ⁇ x, ⁇ y direction) intersecting the XY plane with respect to the X coarse movement stage 40.
- the relative movement is possible.
- the substrate table 60 is pulled by the X coarse movement stage 40 through, for example, any one of the four flexures 62, thereby moving integrally with the X coarse movement stage 40 in at least one of the X axis and Y axis directions. .
- the substrate table 60 is directed to the X coarse movement stage 40 via a plurality of Z voice coil motors 64 in the Z-axis direction, ⁇ x direction, and ⁇ y direction (hereinafter referred to as Z / tilt direction). ) Is driven minutely.
- Z / tilt direction a plurality of Z voice coil motors 64 in the Z-axis direction, ⁇ x direction, and ⁇ y direction
- Z / tilt direction a plurality of Z voice coil motors 64 in the Z-axis direction, ⁇ x direction, and ⁇ y direction
- Z / tilt direction hereinafter referred to as Z / tilt direction.
- the present invention is not limited to this, and at least three Z voice coil motors 64 may be provided that are not on the same straight line. It ’s fine.
- the position information in the Z / tilt direction of the substrate table 60 is not shown using a plurality of Z sensors 65 including a probe 65a fixed to the lower surface of the substrate table 60 and a target 65b fixed to the weight canceling device 50.
- a main controller For example, four (at least three) Z sensors 65 are arranged at predetermined intervals around an axis parallel to the Z axis.
- a main controller (not shown) performs Z / tilt position control of the substrate table 60 (that is, the substrate P) based on the outputs of the plurality of Z sensors 65.
- a plurality (for example, four in this embodiment) of guide plates 66 are fixed to the lower surface of the substrate table 60 in a cantilevered state (see FIG. 4).
- each of the four guide plates 66 is arranged so as to project radially (+ -shape) from the + X side, ⁇ X side, + Y side, and ⁇ Y side ends of the substrate table 60 toward the outside of the substrate table 60.
- the upper surface of the guide plate 66 is finished with very high flatness.
- the Y stator 80y is fixed to the center of the side surface of each of the + X side and the ⁇ X side of the substrate table 60.
- an X stator 80x is fixed at the center of each side surface of the substrate table 60 on the + Y side and the ⁇ Y side.
- the substrate holder 68 as a support member for supporting the substrate P is composed of a plate-like member having a rectangular shape in plan view with the X-axis direction as the longitudinal direction, as shown in FIG. Further, it is fixed on the upper surface of the substrate table 60.
- the dimensions of the substrate holder 68 in the longitudinal direction and the width direction are longer than the dimensions of the substrate table 60 in the longitudinal direction and the width direction, respectively, and are approximately the same as the dimensions in the longitudinal direction and the width direction of the substrate P ( Actually somewhat short).
- the substrate P is placed on the upper surface of the substrate holder 68.
- a plurality of minute holes are formed on the upper surface of the substrate holder 68.
- the substrate holder 68 is connected to a pressurized gas supply device that supplies pressurized gas (for example, air) and a vacuum suction device (each not shown).
- the substrate holder 68 ejects the pressurized gas (compressed air) supplied from the pressurized gas supply device to the lower surface of the substrate P through a part of the plurality of minute holes, whereby the substrate P A gas is interposed between the lower surface of the substrate and the upper surface of the substrate holder 68 (that is, a gas film is formed).
- the substrate holder 68 sucks the gas between the upper surface of the substrate holder 68 and the lower surface of the substrate P using the vacuum suction device through the other part of the plurality of minute holes and sucks the substrate P against the substrate P.
- a downward force (preload) in the gravitational direction, the gas film is given rigidity in the gravitational direction.
- the substrate holder 68 floats the substrate P in the direction of gravity (Z-axis direction) through a minute clearance and supports it in a non-contact manner by the balance between the pressure and flow rate of the pressurized gas and the vacuum suction force, A force for controlling the flatness (for example, a force for correcting or correcting the flatness) is applied to the substrate P. Accordingly, the substrate holder 68 restrains the substrate P in the Z / tilt direction, but does not restrain the substrate P in the three-degree-of-freedom direction in the horizontal plane.
- the distance between the substrate P and the substrate holder 68 can be controlled by adjusting the balance (hereinafter referred to as “air adjustment”) between the ejection (supply) of the pressurized gas and the vacuum suction (intake). It can be done.
- the air adjustment can be controlled in accordance with the position of the upper surface of the substrate holder 68.
- the substrate holder 68 is disposed so as to be able to support at least a portion of the lower surface of the substrate P corresponding to a shot region on the substrate P (that is, a region to which the pattern of the mask M is transferred).
- the upper surface of the substrate holder 68 for supporting the substrate P has a size capable of supporting at least one shot region formed on the substrate P.
- the substrate P is supported in a non-contact manner while applying a downward force in the direction of gravity to the substrate P by using a combination of jetting of pressurized gas and vacuum suction.
- the present invention is not limited to this. Gas may be passed between the substrate holder 68 at high speed, and the substrate P may be supported in a non-contact manner while applying a downward force in the direction of gravity to the substrate P using the Bernoulli effect.
- the substrate carrier 70 has a base 72 and a carrier main body 74 as shown in FIG.
- the base 72 is formed of a rectangular frame-like member in plan view (viewed from the + Z direction).
- a substrate table 60 is disposed in the rectangular opening formed in the base 72.
- each of the four air bearings 78 is disposed so that the bearing surface (gas ejection surface) faces the upper surface of the corresponding guide plate 66 (see FIG. 4), and pressurized gas (for example, compressed air) from the bearing surface.
- pressurized gas for example, compressed air
- the base 72 has a small clearance on the four guide plates 66, for example, by the static pressure of pressurized gas ejected from the four air bearings 78 to the corresponding guide plates 66. Through the surface.
- a pair of X stators 80x and a pair of Y stators 80y fixed to the side surface of the substrate table 60 are provided on the wall surface defining the opening of the base 72 (FIG. 3A respectively). ))),
- the pair of X movers 82x and the pair of Y movers 82y are fixed.
- the Y stator 80y and the Y mover 82y corresponding to the Y stator 80y constitute an electromagnetic force driven Y voice coil motor 84y (see FIG. 2).
- the X stator 80x (see FIG. 3A) and the X mover 82x (see FIG. 3C) corresponding to the X stator 80x are composed of an electromagnetic force driven X voice coil motor 84x. (See FIG. 2).
- the carrier main body 74 is made of a frame-shaped member having a rectangular shape in plan view, and has an X bar mirror 75x, a Y bar mirror 75y, an X support portion 76x, and a Y support portion 76y.
- the X bar mirror 75x is made of a rod-like member having a rectangular XZ section extending in the Y-axis direction, and a reflecting surface is formed on the ⁇ X side surface.
- the Y bar mirror 75y is made of a rod-like member having a rectangular YZ section extending in the X-axis direction, and a reflecting surface is formed on the ⁇ Y side surface.
- the X bar mirror 75x and the Y bar mirror 75y may be configured by fixing a long mirror to a rod-shaped member.
- the X support portion 76x is made of a rod-shaped member having an XZ cross-section rectangle extending in the Y-axis direction
- the Y support portion 76y is made of a rod-shaped member having a YZ cross-section rectangle extending in the X-axis direction.
- the length and cross-sectional shape of the X support portion 76x are set to be substantially the same as those of the X bar mirror 75x
- the length and cross sectional shape of the Y support portion 76y are set to be substantially the same as those of the Y bar mirror 75y.
- the vicinity of the ⁇ Y side end of the X bar mirror 75x and the vicinity of the ⁇ X side end of the Y bar mirror 75y are connected, and the vicinity of the + Y side end of the X bar mirror 75x and the end of the Y support portion 76y ⁇ X side And are connected. Further, the vicinity of the + X side end of the Y bar mirror 75y and the vicinity of the ⁇ Y side end of the X support portion 76x are connected, and the vicinity of the + X side end of the Y support portion 76y and the + Y side end of the X support portion 76x are connected. The vicinity of the end is connected.
- the carrier body 74 is placed on the upper surface of the base 72 and fixed to the base 72.
- the wall surface that defines the opening in the base 72 and the wall surface that defines the opening in the carrier body 74 are substantially flush, as shown in FIG.
- a substrate holder 68 is disposed in the opening of the carrier body 74.
- the substrate P is placed on the carrier body 74 as shown in FIG.
- the vicinity of each of the + X side, ⁇ X side, + Y side, and ⁇ Y side ends of the substrate P is an area to which the mask pattern is not transferred (hereinafter referred to as a blank area).
- the X bar mirror 75x, the Y bar mirror 75y, the X support part 76x, and the Y support part 76y have respective lengths and openings so that the blank area is supported by the carrier body 74 from below.
- the distance between the wall surfaces that defines is set.
- a plurality of minute holes are formed on the upper surfaces of the X bar mirror 75x, the Y bar mirror 75y, the X support portion 76x, and the Y support portion 76y.
- the carrier main body 74 is connected to a vacuum suction device (not shown) so that the blank area of the substrate P can be sucked and held through the plurality of holes.
- the main controller (not shown) is arranged in the X-axis direction with respect to the substrate table 60 via the pair of X voice coil motors 84x described above, and in the Y axis with respect to the substrate table 60 via the pair of Y voice coil motors 84y.
- the substrate carrier 70 is finely driven in each direction.
- the main controller (not shown) minutely drives the substrate carrier 70 in the ⁇ z direction with respect to the substrate table 60 via the pair of X voice coil motors 84x (or the pair of Y voice coil motors 84y).
- the substrate carrier 70 is in a three-degree-of-freedom direction in the horizontal plane with respect to the substrate table 60 (X axis, Y axis, ⁇ z direction). Clearances are formed so that they do not contact each other even if they are finely driven.
- each of the pair of X voice coil motors 84x and the pair of Y voice coil motors 84y substantially coincides with the center of gravity height position of the substrate carrier 70, and the pair of X voice coil motors 84x,
- the substrate carrier 70 is prevented from rotating in the ⁇ x or ⁇ y direction.
- the main controller (not shown) has an X coarse movement stage 40 (not shown in FIG. 2; see FIG. 3 (A)) and the substrate table 60 in a predetermined length in at least one of the X-axis and Y-axis directions.
- at least one thrust (acceleration) in the X-axis and Y-axis directions is appropriately applied to the substrate carrier 70 via the pair of X voice coil motors 84x and the pair of Y voice coil motors 84y.
- the substrate carrier 70 disposed in a non-contact manner on the plurality of (for example, four) guide plates 66 fixed to the substrate table 60 via the plurality of (for example, four) air bearings 78 is provided.
- the main controller (not shown) appropriately drives the substrate carrier 70 minutely in the X axis and ⁇ z directions using the pair of X voice coil motors 84x when the substrate table 60 moves with a long stroke in the Y axis direction.
- the substrate P is positioned by appropriately minutely driving the substrate carrier 70 in the Y-axis and ⁇ z directions using the pair of Y voice coil motors 84y.
- a main controller controls the Z / tilt position of the substrate P by appropriately driving the substrate table 60 in the Z / tilt direction, for example, when performing known autofocus control.
- the substrate table 60 and the substrate holder 68 and the substrate P move integrally in the Z / tilt direction.
- the substrate carrier 70 also moves in the Z / tilt direction integrally with the substrate table 60 (that is, the substrate P) based on the rigidity of the gas film interposed between the air bearing 78 and the corresponding guide plate 66.
- the substrate interferometer system includes an X laser interferometer (not shown) and a Y laser interferometer. Each of the X laser interferometer and the Y laser interferometer is fixed to an apparatus main body (in other words, a gantry) that supports the projection optical system 16 and the like.
- the X laser interferometer irradiates an X reference mirror (not shown) with a reference beam to receive the reflected beam, and irradiates a length measuring beam to the reflection surface of the X bar mirror 75x to receive the reflected beam.
- the X laser interferometer obtains displacement amount information of the X position of the reflection surface of the X bar mirror 75x based on the X reference mirror based on the interference of the reflected beams of the reference beam and the measurement beam.
- the Y laser interferometer also irradiates the length measurement beam on the reflecting surface of the Y bar mirror 75y and receives the reflected beam, thereby shifting the Y position of the reflecting surface of the Y bar mirror 75y with respect to the Y reference mirror. Ask for information.
- Outputs of the X laser interferometer and the Y laser interferometer are supplied to a main controller (not shown).
- At least one of the X laser interferometer and the Y laser interferometer is adapted to irradiate a corresponding bar mirror with a plurality of length measuring beams in a horizontal plane, and the main control unit is configured to perform the measurement based on the plurality of length measuring beams.
- the rotation amount information of the substrate carrier 70 in the ⁇ z direction is obtained.
- the mask M is loaded onto the mask stage 14 by a mask loader (not shown) under the control of the main controller (not shown), and
- the substrate P is loaded onto the substrate stage device 20 by a substrate loader (not shown).
- the main controller performs alignment measurement using an alignment detection system (not shown), and after the alignment measurement is completed, a step-and-scan exposure operation is performed. Since this exposure operation is the same as the conventional step-and-scan method, its detailed description is omitted.
- the air adjustment control in order to control the flatness of the substrate P, control of the amount and pressure of the pressurized gas ejected from the substrate holder 68 and the vacuum suction force (air adjustment) Control) is appropriately performed, but the air adjustment control does not have to be performed in parallel with the position control of the substrate P in the horizontal plane in the scan exposure operation. That is, the air adjustment control, for example, for each substrate P to be exposed in advance before the scan exposure operation, matches the surface property (waviness or thickness variation of the substrate P) of at least one of the substrate P and the substrate holder 68. A set value for the air adjustment control is obtained, and the scan exposure operation is performed based on the set value.
- surface position (height position) information of the substrate P is obtained using a surface position measurement system (for example, an autofocus sensor or a non-contact displacement meter), and based on the surface position information.
- the set value of the air adjustment control may be obtained in advance so that the flatness of the substrate P is controlled (for example, corrected or corrected).
- the set value of the air adjustment control may be obtained using, for example, a reference substrate without using the actual exposure target substrate P.
- the control of the flatness of the substrate P is not limited to the control of the tendency to correct to a flat surface, but includes control for correcting the flat surface or a state having a deviation with a desired property with respect to the upper surface of the substrate holder 68. Also good.
- the substrate holder 68 as the first support member and the substrate carrier 70 as the second support member are arranged in non-contact with each other, and the physical The substrate carrier 70 and thus the substrate P can be finely driven without driving the substrate holder 68, and the substrate P can be positioned with high accuracy.
- the substrate stage apparatus 20 does not need to drive the substrate holder 68 when the substrate P is finely driven, and the object to be driven at the time of the microdrive is lightweight.
- the positioning accuracy of the substrate P can be improved.
- the configuration of a drive system (a drive system including a voice coil motor in the present embodiment) for minutely driving the substrate carrier 70 (and consequently the substrate P) can be simplified (in other words, a necessary drive force can be reduced).
- the configuration of the substrate stage apparatus 20 according to the first embodiment described above can be changed as appropriate.
- modified examples of the substrate stage apparatus 20 according to the first embodiment will be described.
- elements having the same configuration or function as those of the substrate stage apparatus 20 of the first embodiment are denoted by the same reference numerals as those of the first embodiment. Therefore, the description is omitted.
- FIG. 5 shows a substrate stage apparatus 20A according to a first modification of the first embodiment. From the viewpoint of avoiding complications in the drawings, in FIG. 5 (and FIGS. 6 to 11A according to other modified examples described later), the substrate holder 68 (see FIG. 2), the X coarse movement stage 40, the Y coarse movement stage, and the like. The moving stage 30 (see FIG. 3A, respectively) and the like are not shown.
- the substrate carrier 70A of the substrate stage apparatus 20A has an X bar mirror 75x and an X support portion 76x.
- Each of the X bar mirror 75x and the X support part 76x is made of a member having a rectangular XZ section extending in the Y-axis direction, and the X bar mirror 75x is fixed to the ⁇ X side side surface of the X support part 76x.
- the X bar mirror 75x and the X support portion 76x are placed on a base 73 (not shown in FIG. 5, refer to FIG. 14) and are attached to the base 73 (not illustrated in FIG. 5, refer to FIG. 14). )
- the X support section 76x sucks and holds a blank area provided near the ⁇ X side end of the substrate P from below.
- the substrate carrier 70 (see FIG. 3C) of the first embodiment is formed in a rectangular frame shape and holds the entire outer peripheral edge of the substrate P by suction, whereas the first modification
- the substrate carrier 70A in the example is made of a single bar-like member, and holds and holds only the vicinity of one end of the substrate P.
- the substrate stage apparatus 20A includes a stator fixed to the ⁇ X side surface of the substrate table 60 and a base 73 (not shown in FIG. 5; see FIG. 14) + a movable element fixed to the X side surface.
- the pair of X voice coil motors 84x and one Y voice coil motor 84y perform high-precision positioning in the three-degree-of-freedom direction in the horizontal plane with respect to the exposure area IA of the substrate carrier 70A (that is, the substrate P).
- the position information in the X-axis direction and the rotation amount information in the ⁇ z direction of the substrate carrier 70A are obtained by a laser interferometer (not shown) using the X bar mirror 75x, as in the first embodiment.
- the position information in the Y-axis direction of the substrate carrier 70A may be obtained using a laser interferometer system or a linear encoder system (not shown). According to the substrate stage apparatus 20A, since the substrate carrier 70A has a simpler configuration than the first embodiment and is lighter, the position controllability of the substrate P is improved. Further, since it is sufficient to set a margin area only on the ⁇ X side of the substrate P, the efficiency is high.
- FIG. 6 shows a substrate stage apparatus 20B according to a second modification of the first embodiment.
- the first modification see FIG. 5
- the ⁇ X side end of the substrate P is held by the substrate carrier 70A
- the ⁇ P side of the substrate P is on the ⁇ Y side.
- the vicinity of the end is held by the substrate carrier 70B. Since the configuration and function of the substrate carrier 70B are substantially the same as those of the substrate carrier 70A (see FIG. 5) according to the first modified example except for the arrangement, the description is omitted.
- the substrate stage device 20B according to the second modification can also obtain the same effect as the first modification.
- FIG. 7 shows a substrate stage apparatus 20C according to a third modification of the first embodiment.
- a substrate carrier 70C according to the third modification has a first carrier 71a and a second carrier 71b.
- the first carrier 71a includes a drive system and a measurement system, and is a member having substantially the same configuration as that of the substrate carrier 70A (see FIG. 5) according to the first modified example. Adsorb and hold the vicinity.
- the second carrier 71b is a member having a configuration in which the first carrier 71a is arranged symmetrically on the paper surface, and adsorbs and holds the vicinity of the + X side end of the substrate P. Since the substrate carrier 70C can control the positions of the first carrier 71a and the second carrier 71b independently of each other, the substrate P can be tensioned to suppress bending.
- FIG. 8 shows a substrate stage apparatus 20D according to a fourth modification of the first embodiment.
- a substrate carrier 70D according to the fourth modified example includes one X support portion 76x and a pair of Y support portions 76y, and is formed in a U shape in plan view. The ⁇ X side, + Y side, and The blank area provided near the end on each of the ⁇ Y sides is sucked and held.
- An X bar mirror 75x is fixed to the X support portion 76x, and a Y bar mirror 75y is fixed to the -Y side Y support portion 76y.
- Position information of the substrate carrier 70D in the horizontal plane is obtained by using a laser interferometer (not shown) using the X bar mirror 75x and the Y bar mirror 75y.
- the substrate carrier 70D is positioned with high accuracy in the three-degree-of-freedom direction in the horizontal plane with respect to the exposure area IA by, for example, two X voice coil motors 84x and, for example, four Y voice coil motors 84y in total.
- the arrangement of the voice coil motor can be changed as appropriate, and may be the same as that of the first modification shown in FIG. 5, for example.
- FIG. 9 shows a substrate stage apparatus 20E according to a fifth modification of the first embodiment.
- the substrate carrier 70E according to the fifth modification includes an X support portion 76x that holds the vicinity of the ⁇ X side end portion of the substrate P, and a Y support portion 76y that holds the vicinity of the ⁇ Y side end portion of the substrate P. including.
- the vicinity of the ⁇ Y side end of the X support portion 76x and the vicinity of the ⁇ X side end portion of the Y support portion 76y are connected, and the vicinity of the + Y side end portion of the X support portion 76x and the + X side side of the Y support portion 76y
- the vicinity of the end is connected by a rod-shaped connecting member 77.
- the substrate carrier 70E is formed in a triangular frame shape in plan view, and the orthogonality of the reflection surfaces of the X bar mirror 75x and the Y bar mirror 75y can be maintained.
- the connection member 77 may be configured to pass below a substrate holder (not shown) or may be configured to pass above the substrate holder.
- the high-precision positioning in the three-degree-of-freedom direction in the horizontal plane with respect to the exposure area IA of the substrate carrier 70E is performed using a pair of X voice coil motors 84x and a pair of Y voice coil motors 84y. These can be changed as appropriate, and may be the same as, for example, the first modification shown in FIG.
- FIG. 10 shows a substrate stage apparatus 20F according to a sixth modification of the first embodiment.
- the pair of X voice coil motors 84x for minutely driving the substrate carrier 70F in the X-axis direction is on the -Y side of the substrate table 60
- the substrate carrier 70E is on the Y-axis.
- a pair of Y voice coil motors 84y for minutely driving in the direction are arranged on the ⁇ Y side of the substrate table 60, respectively.
- the substrate stage apparatus 20F according to the sixth modification can also achieve the same effect as that of the first embodiment.
- FIGS. 11A and 11B show a substrate stage apparatus 20G according to a seventh modification of the first embodiment.
- the encoder system 90 obtains position information in the direction of three degrees of freedom in the horizontal plane of the substrate carrier 70G.
- the encoder system 90 includes a pair of two-dimensional scales 92 and a plurality of encoder heads 94.
- the pair of two-dimensional scales 92 are each composed of a strip-shaped member extending in the X-axis direction, and are arranged in parallel to each other at a predetermined interval in the Y-axis direction.
- the pair of two-dimensional scales 92 is fixed to the apparatus main body that supports the projection optical system 16 (not shown in FIG. 11A).
- the two-dimensional scale 92 includes an X diffraction grating (X grating) composed of a plurality of grating lines whose periodic direction is the X axis direction, and a Y diffraction composed of a plurality of grating lines whose periodic direction is the Y axis direction.
- X grating X diffraction grating
- Y diffraction composed of a plurality of grating lines whose periodic direction is the Y axis direction.
- a lattice Y grating
- the X grating and the Y grating may be individually formed in different regions of the two-dimensional scale 92, or may be formed in the same region.
- the substrate carrier 70G has one X support portion 76x that sucks and holds the vicinity of the ⁇ X side end portion of the substrate P, and a pair of X voice coil motors 84x.
- the Y voice coil motor 84y is configured to be finely driven in the direction of three degrees of freedom in the horizontal plane with respect to the substrate table 60, and the plurality of encoder heads 94 are fixed to the X support portion 76x.
- five encoder heads 94 are provided at predetermined intervals in the Y-axis direction.
- FIG. 11A for example, two of the five encoder heads 94 are hidden behind each of the pair of two-dimensional scales 92.
- FIG. 11B for example, five encoder heads 94 overlap in the depth direction of the paper. Note that the positional relationship between the pair of two-dimensional scales 92 and, for example, five encoder heads 94 may be reversed.
- the five encoder heads 94 are opposed to the pair of two-dimensional scales 92, for example, during the exposure operation (X scan operation) and the alignment operation.
- the Y positions of the encoder head 94 and the pair of two-dimensional scales 92 are set.
- the encoder head 94 has an X head that constitutes an X linear encoder system together with the X grating of the two-dimensional scale 92 facing each other, and a Y head that constitutes a Y linear encoder system together with the Y grating (not shown).
- the Y position information of the substrate carrier 70G that moves with a long stroke in the Y-axis direction may be obtained by, for example, an optical interferometer system (not shown).
- the substrate carrier 70G of the seventh modified example as shown in FIG. 11B, a pair of air bearings 78 connected by a connection member 79 having a U-shaped XZ section moves the guide plate 66 up and down.
- this configuration may be applied to the first embodiment and other modifications of the first embodiment.
- the substrate carrier 70G of the seventh modified example has a configuration in which one X support portion 76x sucks and holds the vicinity of the end portion on the ⁇ X side of the substrate P, but is not limited thereto, and the first embodiment described above is not limited thereto.
- a rectangular frame shape as in the embodiment may be used, and the encoder system 90 may be applied to the first to sixth modifications.
- FIG. 12 shows a substrate stage apparatus 20H according to an eighth modification of the first embodiment.
- the air bearing 78 is attached to the lower end portion of the base 73H that supports the X bar mirror 75x and the X support portion 76x, and is fixed to the upper surface of the X coarse movement stage 40.
- the pressurized gas is jetted onto the guide plate 66, and the substrate carrier 70H floats in a non-contact manner on the X coarse movement stage 40 by the static pressure of the pressurized gas.
- the substrate table 60 and the X coarse movement stage 40 are connected only by the steel plate 63 instead of the flexure 62 (see FIG. 4) including the sliding device.
- FIG. 13 shows a substrate stage apparatus 20I according to a ninth modification of the first embodiment.
- pressurized gas is applied to the upper surface of the Y step guide 56 from the air bearing 78 attached to the lower end portion of the base 73I that supports the X bar mirror 75x and the X support portion 76x.
- the substrate carrier 70I is ejected from the Y step guide 56 in a non-contact manner by the static pressure of the pressurized gas.
- the substrate table 60 and the substrate holder 68 include an X voice coil motor 67x including a stator fixed to the X coarse movement stage 40 and a mover fixed to the substrate table 60, and the like.
- the substrate stage apparatus 20I Driven in the X-axis and / or Y-axis direction integrally with the X coarse movement stage 40 by a thrust applied from a Y voice coil motor (not shown) having the configuration described above.
- a Y voice coil motor (not shown) having the configuration described above.
- transmission of disturbance (vibration) from the X coarse movement stage 40 to the substrate table 60 can be suppressed.
- the connection / disconnection state between the X coarse movement stage 40 and the substrate table 60 can be switched using a mechanical connection device.
- the X coarse movement stage 40 and the substrate table 60 may be mechanically coupled.
- FIG. 14 shows a substrate stage apparatus 20J according to a tenth modification of the first embodiment. Since the substrate table 60 and the X coarse movement stage 40 do not move relative to each other in a direction parallel to the horizontal plane, in the substrate stage device 20J, the spherical bearing device 54J is integrally attached to the weight cancellation device 50J.
- the configuration of the substrate carrier 70A is the same as that of the first modified example (see FIG. 5).
- FIG. 15 shows a substrate stage apparatus 20K according to an eleventh modification of the first embodiment.
- the weight cancellation device 50K includes an X linear guide 55a fixed to the upper surface of the Y step guide 56 and a plurality of X slide members 55b fixed to the lower surface of the weight cancellation device 50K. Through 55, it is guided linearly in the X-axis direction mechanically. Since the configuration of the substrate carrier 70A is the same as that of the first modified example (see FIG. 5), description thereof is omitted.
- FIG. 16 shows a substrate stage apparatus 20L according to a twelfth modification of the first embodiment.
- the substrate stage apparatus 20L includes an X coarse movement stage 98x that is linearly driven in the X axis direction via the X drive system 97x on the X guide 96x, and a Y axis direction via the Y drive system 97y on the X coarse movement stage 98x.
- the substrate table 60 is placed on the Y coarse movement stage 98y via a plurality of Z actuators 99.
- the Y coarse movement stage 98y is linearly driven.
- a cam device is used as the Z actuator 99, but the configuration is not particularly limited.
- a total of four Z actuators 99 are provided corresponding to the four corners of the substrate table 60.
- the substrate table 60 is provided with, for example, four Z actuators 99 with respect to the Y coarse movement stage 98y with respect to the Z axis, ⁇ x, ⁇ y. It is micro-driven as appropriate in the direction. Since the configuration of the substrate carrier 70A is the same as that of the first modified example (see FIG. 5), description thereof is omitted.
- the substrate holder 68 of the first embodiment has a substrate support surface having almost the same area as the substrate P, as shown in FIG. 2, whereas the second holder 68 shown in FIG.
- the substrate support surface of the substrate holder 102 included in the substrate stage apparatus 100 of the embodiment has a dimension that is slightly longer in the Y-axis direction (cross-scan direction) than the dimension in the Y-axis direction of the exposure area IA. It is set to be slightly longer than half of the dimension in the width (Y-axis) direction. Note that the dimension of the substrate support surface of the substrate holder 102 in the X-axis direction is set to be approximately the same as the dimension of the substrate P in the X-axis direction, as in the first embodiment.
- the substrate holder 102 is disposed below the projection optical system 16 (not shown in FIGS. 17A and 17B, see FIG. 1), includes the exposure target region, and is included in the total area of the substrate P. A preload is applied to about half of the area, and the flatness of the substrate P in the area is controlled. Similarly to the first embodiment, the substrate holder 102 can finely drive the substrate P in the Z / tilt direction while holding the substrate P using a Z actuator (not shown). .
- a plurality of air guide devices 106 for non-contacting and supporting the regions of the substrate P that are not supported by the substrate holder 102 are disposed.
- the Z position on the upper surface of each of the plurality of air guide devices 106 is set to be substantially the same as the Z position on the upper surface of the substrate holder 102.
- the air guide device 106 ejects a pressurized gas to the lower surface of the substrate P to support the substrate P in a non-contact manner.
- the air guide device 106 needs to be able to control the flatness of the substrate P. There is no.
- a pair of XY actuators 110 are arranged apart from each other in the X-axis direction.
- the XY actuator 110 drives a substrate carrier 112 that sucks and holds a blank area set in the vicinity of the + Y side end of the substrate P with a predetermined stroke in the Y-axis direction (about half the dimension of the substrate P in the Y-axis direction). At the same time, it is finely driven in the X-axis direction.
- the configuration of the XY actuator 110 is not particularly limited, and a planar motor or the like can be used.
- the ⁇ z position of the substrate P can be controlled by making the Y positions of the pair of substrate carriers 112 different.
- the substrate holder 102, the plurality of air guide devices 106, and the pair of XY actuators 110 are each driven with a predetermined stroke in the X-axis direction along the X guide 104 disposed below the substrate holder 102.
- the substrate holder 102, the plurality of air guide devices 106, and the pair of XY actuators 110 may be integrally mounted on a table member (not shown), and the table member may be driven in the X-axis direction.
- the substrate holder 102, the plurality of air guide devices 106, and the pair of XY actuators 110 may be individually driven in the X-axis direction.
- the substrate stage apparatus 100 for example, when transferring a mask pattern to the ⁇ Y side region of the substrate P during the step-and-scan exposure operation, as shown in FIG.
- the substrate carrier 112 is positioned at the stroke end on the + Y side.
- a half area on the ⁇ Y side of the substrate P is held in a non-contact manner by the substrate holder 102, and a half area on the + Y side of the substrate P is supported in a non-contact manner by the plurality of + Y side air guide devices 106.
- the substrate holder 102, the plurality of air guide devices 106, and the pair of XY actuators 110 are each driven with a predetermined stroke in the X-axis direction with respect to the exposure area IA.
- the pair of substrate carriers 112 are positioned at the ⁇ Y side stroke end.
- the + Y side half area of the substrate P is held in a non-contact manner by the substrate holder 102, and the ⁇ Y half area of the substrate P is supported in a non-contact manner by the plurality of ⁇ Y side air guide devices 106,
- an alignment operation is performed, and then the substrate holder 102, the plurality of air guide devices 106, and the pair of XY actuators 110 are each driven with a predetermined stroke in the X-axis direction with respect to the exposure area IA.
- the flatness control (air adjustment control) of the substrate P may be performed again.
- the position information of the pair of substrate carriers 112 (or substrates P) may be obtained using, for example, a laser interferometer system or an encoder system.
- the blank area of the substrate P is held, and the substrate P is free from the substrate holder 102 in three horizontal planes.
- a pair of substrate carriers 112 and a substrate holder 102 that are finely driven in the direction of the angle are arranged in non-contact with each other, are mechanically separated, and a pair of substrate carriers without driving the substrate holder 102
- the substrate P can be finely driven, and the substrate P can be positioned with high accuracy.
- the substrate holder 102 is smaller and lighter than the first embodiment, so the cost is low.
- the configuration of the substrate stage apparatus 100 is simplified.
- the substrate holder 102 and the substrate P are always in non-contact, the position changing operation of the substrate P with respect to the exposure area IA can be performed quickly.
- the substrate holder 102 does not hold (contact) the substrate P, there is no risk of dust generation even if the position changing operation with respect to the exposure area IA is frequently performed, and the substrate holder 102 can be made maintenance-free.
- the present invention is not limited to this.
- the air guide device 106 (which covers the moving range of the substrate P) having a length capable of suppressing the bending of the substrate P may be disposed on the ⁇ Y side of the substrate holder 102.
- the pair of XY actuators 110 are configured to be movable in the X-axis direction relative to the air guide device 106, and the air guide device 106 disposed on the + Y side of the substrate holder 102 is connected to the X of the substrate P.
- the + Y side air guide device 106 may also be fixedly arranged without moving in the X-axis direction.
- the size of the substrate holder 102 in the X-axis direction may be a size that can cover the movement range of the substrate P, and the substrate holder 102 may be fixedly arranged without moving in the X-axis direction.
- the air guide device 106 may be fixedly arranged in the X-axis direction, and the pair of XY actuators 110 may be moved in the X-axis direction.
- the size of the substrate holder 102 is not limited to about 1 ⁇ 2 of the substrate P, and can be appropriately changed according to the size of the exposure area IA.
- FIGS. 18A and 18B show a substrate stage apparatus 100A according to a modification of the second embodiment.
- elements having the same configuration or function as those of the substrate stage apparatus 100 according to the second embodiment are denoted by the same reference numerals. Therefore, the description is omitted.
- the substrate holder 102A included in the substrate stage apparatus 100A has an X-axis direction dimension set to about half of the X-axis direction dimension of the substrate P, and a Y-axis direction dimension set to approximately the same as the Y-axis direction dimension of the substrate P.
- a plurality of air guide devices 106 are arranged on the + X side and ⁇ X side of the substrate holder 102A, and a pair of XY actuators 110A are arranged on the + X side of the substrate holder 102A corresponding to the pair of substrate carriers 112, respectively.
- the substrate holder 102A, the plurality of air guide devices 106, and the pair of XY actuators 110A are each integrally driven in the Y-axis direction (FIG. 18 (A) and the black arrow in FIG. 18 (B)). Further, by moving the pair of substrate carriers 112 holding the substrate P in the X-axis direction, an X step operation (movement operation between shot areas) of the substrate P is performed.
- the substrate holder 102A, the plurality of air guide devices 106, and the pair of XY actuators 110A are integrally driven in the X-axis direction with respect to the exposure area IA.
- the moving distance of the substrate holder 102A in the X-axis direction can be shortened.
- the size of the substrate holder 102A can be appropriately changed according to the size of the exposure area IA.
- the substrate holder 68 (see FIG. 4) is configured to hold the substrate P in a non-contact manner via a gas film, but the substrate holder 200 of the third embodiment is a retainer 202.
- the substrate P is supported in a contact state and in a low friction state by using a plurality of balls 204 arranged at predetermined intervals via the.
- the plurality of balls 204 are accommodated in a plurality of grooves 206 formed on the upper surface of the substrate holder 200.
- the hole for ejecting pressurized gas to the lower surface of the substrate P is a region in the upper surface of the substrate holder 200 where the groove 206 is not formed (opposite the lower surface of the substrate P).
- a hole for vacuum suction for allowing the preload (see the white arrow in FIG. 19) to act on the substrate P is opened on the bottom surface of the groove 206.
- the substrate P is held by a substrate carrier 70 (see FIG. 3C) having the same configuration as that of the first embodiment, and is in a horizontal plane with respect to the substrate holder 200. It is finely driven in the direction of three degrees of freedom.
- the support mechanism for supporting the substrate P in a contact state is not limited to a configuration using ball-shaped members such as the plurality of balls 204, as long as the configuration can support the substrate P in a low friction state. good.
- the support mechanism that supports the substrate P in a contact state can support the substrate P with respect to the substrate holder so that the substrate P can be minutely driven in at least one of the X-axis direction, the Y-axis direction, and the ⁇ z direction.
- Any configuration may be used, and it is preferable that the substrate holder can be supported so as to be micro-driven substantially independently of the substrate holder.
- a liquid crystal exposure apparatus according to a fourth embodiment will be described with reference to FIGS. 20 to 21B.
- the configuration of the liquid crystal exposure apparatus according to the fourth embodiment is the same as that of the first embodiment except that the configuration of the substrate stage apparatus 320 is different. Therefore, the substrate stage apparatus 20 of the first embodiment ( Elements having the same configuration or function as those in FIGS. 1 to 4 are denoted by the same reference numerals as those in the first embodiment, description thereof is omitted, and only differences are described.
- the carrier body 74 (see FIG. 3C) is provided.
- the carrier body 374 of the substrate carrier 370 according to the fourth embodiment has an X bar mirror 75x and an X support.
- a pair of X connecting rods 86x provided between the portion 76x and a pair of Y connecting rods 86y provided between the Y bar mirror 75y and the Y support portion 76y are further provided.
- the pair of X connecting rods 86x and the pair of Y connecting rods 86y are members provided for improving the overall rigidity (flexural rigidity, torsional rigidity, etc.) of the substrate carrier 370, and the substrate P is viewed from below. Do not support. That is, the Z positions of the upper surfaces of the pair of X coupling rods 86x and the pair of Y coupling rods 86y are lower than the Z positions of the upper surfaces of the X bar mirror 75x, X support portion 76x, Y bar mirror 75y, and Y support portion 76y.
- the deflection of the substrate P is between the lower surface of the substrate P and the upper surfaces of the X connecting rod 86x and the Y connecting rod 86y.
- a predetermined clearance is formed in a neglected state.
- the substrate P is supported in a non-contact manner from below by the substrate holder 368 as in the first embodiment (see FIGS. 1 to 4).
- the substrate holder 368 is formed with an X groove 88x and a Y groove 88y for accommodating the pair of X connection rods 86x and the pair of Y connection rods 86y, respectively.
- the X groove 88x and the Y groove 88y are opened on the upper surface of the substrate holder 368, as shown in FIG.
- the substrate stage apparatus 320 since the rigidity of the substrate carrier 370 is improved, the positioning accuracy of the substrate P is improved. Further, since the orthogonality of the reflecting surfaces of the X bar mirror 75x and the Y bar mirror 75y of the substrate carrier 370 can be maintained well, the position controllability of the substrate P is improved.
- the arrangement, number, and shape of the stiffening members for improving the rigidity of the substrate carrier 370 can be changed as appropriate.
- a substrate carrier 370A like a substrate carrier 370A according to a modification of the fourth embodiment shown in FIG. 22A, between the X bar mirror 75x and the Y support portion 76y, between the X bar mirror 75x and the Y bar mirror 75y.
- a so-called cane 86a may be installed between the Y bar mirror 75y and the X support portion 76x and between the X support portion 76x and the Y support portion 76y.
- a plurality of grooves 88a are formed in the substrate holder 368A in accordance with the positions of the plurality of wands 86a provided on the substrate carrier 370A.
- a liquid crystal exposure apparatus according to a fifth embodiment will be described with reference to FIG. Since the configuration of the liquid crystal exposure apparatus according to the fifth embodiment is the same as that of the fourth embodiment except that the configuration of the substrate carrier 470 is different, the substrate stage apparatus 320 (see FIG. The elements having the same configuration or function as those of the second embodiment are denoted by the same reference numerals as those in the fourth embodiment, description thereof is omitted, and only differences are described.
- the substrate carrier 470 has a carrier body 474 detachable from the base 72.
- the carrier body 474 has an X connecting rod 86x installed between the X bar mirror 75x and the X support portion 76x, and although not shown, the Y bar mirror 75x and the Y support portion are not shown.
- a Y-connecting rod 86y (see FIG. 21A) is installed between 76y and 76y.
- the substrate holder 368 is formed with an X groove 88x and a Y groove 88y (not shown in FIG. 23; see FIG. 21B) for accommodating the X connecting rod 86x and the Y connecting rod 86y.
- the carrier body 474 is separated from the base 72 and moved to the + Z side (the carrier body 474 is lifted).
- the substrate P can be easily separated from the substrate stage device 420.
- the loading and unloading of the substrate P with respect to the substrate stage apparatus 420 is performed by moving the carrier body 474 on which the substrate P is placed with respect to the substrate holder 368.
- the structure of the apparatus for moving the carrier main body 474 is not specifically limited, For example, a well-known articulated robot can be used.
- the carrier main body 474 has end portions (or part of end portions) on the + Y side and ⁇ Y side projecting outward from the base 72, and the projecting portions are, for example, transported by the transport robot.
- the arm 13 is supported from below.
- a vacuum suction device (not shown) is connected to the transport arm 13 so that the substrate P is attracted and held by the carrier body 474 in a state where the carrier body 474 is supported by the transport arm 13.
- the substrate P is supported from below by the X connecting rod 86x and the Y connecting rod 86y (see FIG. 21A) of the carrier body 474. Thereby, the bending resulting from own weight is suppressed.
- a plurality of carrier main bodies 474 are prepared, and the loading and unloading operations of the substrate P are performed while exchanging the plurality of carrier main bodies 474. Therefore, the efficiency of the substrate replacement operation is good.
- the substrate carrier 70 may be capable of being finely driven in the Z / tilt direction with respect to the substrate table 60 (and the substrate holder 68).
- the substrate table 60 and the substrate holder 68 are separate members, but may be configured by a single member.
- vacuum suction or magnetic suction is performed to increase the rigidity of the gas film formed by the air bearing 78.
- You may plan.
- the positional relationship between the air bearing 78 and the guide plate 66 may be reversed. That is, the guide plate 66 may be fixed to the substrate carrier 70 side, and the air bearing 78 may be attached to the substrate table 60 side. In this case, since there is no need to connect a pressurized gas supply pipe to the substrate carrier 70, load fluctuation due to the resistance of the pipe or transmission of disturbance is suppressed, which is preferable from the viewpoint of position control of the substrate carrier 70.
- the illumination light may be ultraviolet light such as ArF excimer laser light (wavelength 193 nm), KrF excimer laser light (wavelength 248 nm), or vacuum ultraviolet light such as F 2 laser light (wavelength 157 nm).
- a single wavelength laser beam oscillated from a DFB semiconductor laser or a fiber laser is amplified by a fiber amplifier doped with, for example, erbium (or both erbium and ytterbium).
- harmonics converted into ultraviolet light using a nonlinear optical crystal may be used.
- a solid laser (wavelength: 355 nm, 266 nm) or the like may be used.
- the projection optical system 16 is a multi-lens projection optical system including a plurality of optical systems has been described, but the number of projection optical systems is not limited to this, and one or more projection optical systems may be used.
- the projection optical system is not limited to a multi-lens projection optical system, and may be a projection optical system using an Offner type large mirror. Further, the projection optical system 16 may be an enlargement system or a reduction system.
- the use of the exposure apparatus is not limited to the exposure apparatus for liquid crystal that transfers the liquid crystal display element pattern onto the square glass plate.
- the exposure apparatus for manufacturing an organic EL (Electro-Luminescence) panel the semiconductor manufacture
- the present invention can also be widely applied to an exposure apparatus for manufacturing an exposure apparatus, a thin film magnetic head, a micromachine, a DNA chip, and the like.
- microdevices such as semiconductor elements but also masks or reticles used in light exposure apparatuses, EUV exposure apparatuses, X-ray exposure apparatuses, electron beam exposure apparatuses, etc., glass substrates, silicon wafers, etc.
- the present invention can also be applied to an exposure apparatus that transfers a circuit pattern.
- the object to be exposed is not limited to the glass plate, but may be another object such as a wafer, a ceramic substrate, a film member, or a mask blank.
- the thickness of the substrate is not particularly limited, and includes, for example, a film-like (flexible sheet-like member).
- the exposure apparatus of the present embodiment is particularly effective when a substrate having a side length or diagonal length of 500 mm or more is an exposure target.
- the step of designing the function and performance of the device the step of producing a mask (or reticle) based on this design step, and the step of producing a glass substrate (or wafer)
- the above-described exposure method is executed using the exposure apparatus of the above embodiment, and a device pattern is formed on the glass substrate. Therefore, a highly integrated device can be manufactured with high productivity. .
- the exposure apparatus and exposure method of the present invention are suitable for scanning exposure of an object.
- the manufacturing method of the flat panel display of this invention is suitable for production of a flat panel display.
- the device manufacturing method of the present invention is suitable for the production of micro devices.
- DESCRIPTION OF SYMBOLS 10 Liquid crystal exposure apparatus, 20 ... Substrate stage apparatus, 60 ... Substrate table, 66 ... Guide plate, 68 ... Substrate holder, 70 ... Substrate carrier, 78 ... Air bearing, 84x ... X voice coil motor, 84y ... Y voice coil motor , P: substrate.
Abstract
Description
以下、第1の実施形態について、図1~図4に基づいて説明する。
図5には、上記第1の実施形態の第1の変形例に係る基板ステージ装置20Aが示されている。なお、図面の錯綜を避ける観点から、図5(及び後述するその他の変形例に係る図6~図11(A))では、基板ホルダ68(図2参照)、X粗動ステージ40、Y粗動ステージ30(それぞれ図3(A)参照)などの図示が省略されている。基板ステージ装置20Aの基板キャリア70Aは、Xバーミラー75xとX支持部76xとを有している。Xバーミラー75x、及びX支持部76xそれぞれは、Y軸方向に延びるXZ断面矩形の部材から成り、Xバーミラー75xがX支持部76xの-X側の側面に固定されている。Xバーミラー75xとX支持部76xとは、ベース73(図5では不図示。図14参照)上に載置され、該ベース73に取り付けられたエアベアリング78(図5では不図示。図14参照)を介して基板テーブル60の-X側の端部から突き出した一対のガイド板66上に非接触状態で載置されている。X支持部76xは、基板Pの-X側の端部近傍に設けられた余白領域を下方から吸着保持する。すなわち、上記第1の実施形態の基板キャリア70(図3(C)参照)が矩形の枠状に形成され、基板Pの外周縁部の全体を吸着保持するのに対し、本第1の変形例の基板キャリア70Aは、一本の棒状の部材から成り、基板Pの一端部近傍のみを吸着保持する。
図6には、上記第1の実施形態の第2の変形例に係る基板ステージ装置20Bが示されている。上記第1の変形例(図5参照)において、基板Pの-X側の端部近傍が基板キャリア70Aに保持されたのに対し、本第2の変形例では、基板Pの-Y側の端部近傍が基板キャリア70Bに保持される。基板キャリア70Bの構成及び機能は、配置が異なる点を除き上記第1の変形例に係る基板キャリア70A(図5参照)と実質的に同じであるので、説明を省略する。本第2の変形例に係る基板ステージ装置20Bでも、上記第1の変形例を同様の効果を得ることができる。
図7には、上記第1の実施形態の第3の変形例に係る基板ステージ装置20Cが示されている。本第3の変形例に係る基板キャリア70Cは、第1キャリア71aと第2キャリア71bとを有している。第1キャリア71aは、駆動系、計測系を含み、上記第1の変形例に係る基板キャリア70A(図5参照)と実質的に同じ構成の部材であり、基板Pの-X側の端部近傍を吸着保持する。第2キャリア71bは、第1キャリア71aを紙面左右対称に配置したような構成の部材であり、基板Pの+X側の端部近傍を吸着保持する。基板キャリア70Cは、第1キャリア71a、及び第2キャリア71bそれぞれの位置を互いに独立して制御することができるので、基板Pに張力を付与して撓みを抑制することができる。
図8には、上記第1の実施形態の第4の変形例に係る基板ステージ装置20Dが示されている。本第4の変形例に係る基板キャリア70Dは、ひとつのX支持部76xと一対のY支持部76yとを含み、平面視U字状に形成され、基板Pの-X側、+Y側、及び-Y側それぞれの端部近傍に設けられた余白領域を吸着保持する。X支持部76xには、Xバーミラー75xが、-Y側のY支持部76yには、Yバーミラー75yがそれぞれ固定されている。基板キャリア70Dの水平面内の位置情報は、不図示のレーザ干渉計により、上記Xバーミラー75x、及びYバーミラー75yを用いて求められる。基板キャリア70Dは、例えば2つのXボイスコイルモータ84xと、例えば合計で4つのYボイスコイルモータ84yとにより、露光領域IAに対する水平面内の3自由度方向の高精度位置決めが行われる。なお、ボイスコイルモータの配置は、適宜変更が可能であり、例えば図5に示される上記第1の変形例と同様であっても良い。
図9には、上記第1の実施形態の第5の変形例に係る基板ステージ装置20Eが示されている。本第5の変形例に係る基板キャリア70Eは、基板Pの-X側の端部近傍を保持するX支持部76xと、基板Pの-Y側の端部近傍を保持するY支持部76yとを含む。X支持部76xの-Y側の端部近傍とY支持部76yの-X側の端部近傍とが接続され、X支持部76xの+Y側の端部近傍とY支持部76yの+X側の端部近傍とが棒状の接続部材77により接続されている。これにより、基板キャリア70Eは、平面視で三角形の枠状に形成され、Xバーミラー75x、及びYバーミラー75yの互いの反射面の直交度を保つことができる。接続部材77は、不図示の基板ホルダの下方を通過する構成でも良いし、基板ホルダの上方を通過する構成でも良い。基板キャリア70Eの露光領域IAに対する水平面内の3自由度方向の高精度位置決めは、一対のXボイスコイルモータ84x、及び一対のYボイスコイルモータ84yを用いて行われるが、ボイスコイルモータの配置は、適宜変更が可能であり、例えば図5に示される上記第1の変形例と同様であっても良い。
図10には、上記第1の実施形態の第6の変形例に係る基板ステージ装置20Fが示されている。本第6の変形例に係る基板ステージ装置20Fでは、基板キャリア70FをX軸方向に微小駆動するための一対のXボイスコイルモータ84xが基板テーブル60の-Y側に、基板キャリア70EをY軸方向に微小駆動するための一対のYボイスコイルモータ84yが基板テーブル60の-Y側にそれぞれ配置されている。本第6の変形例に係る基板ステージ装置20Fでも、上記第1の実施形態を同様の効果を得ることができる。
図11(A)及び図11(B)には、上記第1の実施形態の第7の変形例に係る基板ステージ装置20Gが示されている。本第7の変形例に係る基板ステージ装置20Gでは、基板キャリア70Gの水平面内の3自由度方向の位置情報が、エンコーダシステム90により求められる。エンコーダシステム90は、一対の2次元スケール92、及び複数のエンコーダヘッド94を備えている。一対の2次元スケール92は、それぞれX軸方向に延びる帯状の部材から成り、Y軸方向に所定間隔で互いに平行に配置されている。一対の2次元スケール92は、投影光学系16(図11(A)では不図示)を支持する装置本体に固定されている。2次元スケール92には、X軸方向を周期方向とする複数の格子線により構成されたX回折格子(Xグレーティング)と、Y軸方向を周期方向とする複数の格子線により構成されたY回折格子(Yグレーティング)とが形成されている。Xグレーティング及びYグレーティングは、2次元スケール92の互いに異なる領域に個別に形成されていても良いし、同一の領域に形成されていても良い。
図12には、上記第1の実施形態の第8の変形例に係る基板ステージ装置20Hが示されている。本第8の変形例に係る基板ステージ装置20Hでは、Xバーミラー75xとX支持部76xとを支持するベース73Hの下端部に取り付けられたエアベアリング78から、X粗動ステージ40の上面に固定されたガイド板66に加圧気体が噴出され、該加圧気体の静圧により基板キャリア70HがX粗動ステージ40上に非接触浮上している。また、基板ステージ装置20Hでは、基板テーブル60とX粗動ステージ40とが、滑節装置を含むフレクシャ62(図4参照)に換えて、鋼板63のみにより接続されている。
図13には、上記第1の実施形態の第9の変形例に係る基板ステージ装置20Iが示されている。本第9の変形例に係る基板ステージ装置20Iでは、Xバーミラー75xとX支持部76xとを支持するベース73Iの下端部に取り付けられたエアベアリング78からYステップガイド56の上面に加圧気体が噴出され、該加圧気体の静圧により基板キャリア70IがYステップガイド56に非接触浮上している。また、基板ステージ装置20Iでは、基板テーブル60、及び基板ホルダ68が、X粗動ステージ40に固定された固定子と基板テーブル60に固定された可動子とから成るXボイスコイルモータ67x、及び同様の構成のYボイスコイルモータ(不図示)から付与される推力により、X粗動ステージ40と一体的にX軸、及び/又はY軸方向に駆動される。基板ステージ装置20Iでは、基板テーブル60に対するX粗動ステージ40からの外乱(振動)の伝達を抑制できる。なお、機械的な連結装置を用いて、X粗動ステージ40と基板テーブル60との連結、非連結状態を切り換えることができるように構成し、例えば上記外乱の伝達が問題にならない場合には、X粗動ステージ40と基板テーブル60とを機械的に連結しても良い。
図14には、上記第1の実施形態の第10の変形例に係る基板ステージ装置20Jが示されている。基板テーブル60とX粗動ステージ40とが水平面に平行な方向に相対移動することがないことから、基板ステージ装置20Jでは、重量キャンセル装置50Jに球面軸受け装置54Jが一体的に取り付けられている。基板キャリア70Aの構成は、上記第1の変形例(図5参照)と同じである。
図15には、上記第1の実施形態の第11の変形例に係る基板ステージ装置20Kが示されている。基板ステージ装置20Kにおいて、重量キャンセル装置50Kは、Yステップガイド56の上面に固定されたXリニアガイド55aと重量キャンセル装置50Kの下面に固定された複数のXスライド部材55bとを含むXリニアガイド装置55を介して機械的にX軸方向に直進案内される。基板キャリア70Aの構成は、上記第1の変形例(図5参照)と同じであるので説明を省略する。
図16には、上記第1の実施形態の第12の変形例に係る基板ステージ装置20Lが示されている。基板ステージ装置20Lは、Xガイド96x上でX駆動系97xを介してX軸方向に直進駆動されるX粗動ステージ98xと、X粗動ステージ98x上でY駆動系97yを介してY軸方向に直進駆動されるY粗動ステージ98yとを備えたガントリタイプの2次元ステージ装置を含み、基板テーブル60がY粗動ステージ98y上に複数のZアクチュエータ99を介して載置されている。なお、図16では、Zアクチュエータ99としてカム装置が用いられているが、その構成は特に限定されない。Zアクチュエータ99は、基板テーブル60の四隅に対応して、例えば合計で4つ設けられ、基板テーブル60は、例えば4つのZアクチュエータ99により、Y粗動ステージ98yに対してZ軸、θx、θy方向に適宜微小駆動される。基板キャリア70Aの構成は、上記第1の変形例(図5参照)と同じであるので説明を省略する。
次に第2の実施形態に係る液晶露光装置について、図17(A)及び図17(B)を用いて説明する。第2の実施形態に係る液晶露光装置の構成は、基板ステージ装置100の構成が異なる点を除き、上記第1の実施形態と同じであるので、以下、相違点についてのみ説明する。
次に第3の実施形態に係る液晶露光装置について、図19を用いて説明する。第3の実施形態に係る液晶露光装置の構成は、基板ホルダ200の構成が異なる点を除き、上記第1の実施形態と同じであるので、以下、相違点についてのみ説明する。
次に第4の実施形態に係る液晶露光装置について、図20~図21(B)を用いて説明する。第4の実施形態に係る液晶露光装置の構成は、基板ステージ装置320の構成が異なる点を除き、上記第1の実施形態と同じであるので、上記第1の実施形態の基板ステージ装置20(図1~図4参照)と同じ構成、又は機能を有する要素については、上記第1の実施形態と同じ符号を付して説明を省略し、相違点についてのみ説明する。
次に第5の実施形態に係る液晶露光装置について、図23を用いて説明する。第5の実施形態に係る液晶露光装置の構成は、基板キャリア470の構成が異なる点を除き、上記第4の実施形態と同じであるので、上記第4の実施形態の基板ステージ装置320(図21参照)と同じ構成、又は機能を有する要素については、上記第4の実施形態と同じ符号を付して説明を省略し、相違点についてのみ説明する。
Claims (60)
- 光学系を介して照明光を物体に照射して、前記照明光に対して前記物体を相対駆動して前記物体の複数の領域をそれぞれ走査露光する露光装置であって、
前記複数の領域のうち少なくとも第1領域を浮上支持する支持部と、
前記支持部によって浮上支持された前記物体を保持する保持部と、
前記支持部を、駆動する第1駆動系と、
前記保持部を、駆動する第2駆動系と、
前記第1領域に関する走査露光において、前記支持部と前記保持部とがそれぞれ駆動されるように前記第1、第2駆動系を制御する制御系と、を備える露光装置。 - 前記制御系は、前記走査露光において、前記保持部を前記支持部に対して相対駆動して前記照明光に対する前記物体の位置を調整するように前記第1及び第2駆動系を制御する請求項1に記載の露光装置。
- 前記保持部は、前記走査露光時に前記物体が駆動される第1方向及び前記第1方向に交差する第2方向に関して、前記支持部に対して相対駆動可能である請求項1又は2に記載の露光装置。
- 前記支持部は、前記保持部を浮上支持する請求項1~3の何れか一項に記載の露光装置。
- 前記制御系は、前記支持部及び前記保持部をそれぞれ駆動制御して、前記走査露光を行う領域を前記第1領域から第2領域へ変更する請求項1~4の何れか一項に記載の露光装置。
- 前記制御系は、前記第2領域の走査露光を行う前に、前記保持部を前記支持部に対して相対駆動して、前記走査露光を行う前記領域を前記第1領域から前記第2領域へ変更する請求項5に記載の露光装置。
- 前記制御系は、前記第2駆動系を制御して、前記保持部を、前記第2方向に関して、前記第1領域が前記支持部を外れるように前記支持部に対して相対駆動して、前記走査露光を行う前記領域を前記第1領域から前記第2領域へ変更する請求項5又は6に記載の露光装置。
- 前記支持部は、前記第1領域と、前記第1領域と位置が異なる第2領域とを支持し、
前記第2領域は、前記走査露光時に前記物体が移動される第1方向と前記第1方向に交差する第2方向との少なくとも何れか一方の方向に関して、前記第1領域と位置が異なる領域である請求項1~7の何れか一項に記載の露光装置。 - 前記制御系は、前記照明光に対する前記第1及び第2領域との位置に基づいて前記物体の位置を調整する請求項8に記載の露光装置。
- 前記第1駆動系は、前記支持部を、前記光学系の光軸方向と平行な第3方向に関して前記保持部に対して相対駆動する請求項1~9の何れか一項に記載の露光装置。
- 前記保持部の位置に関する情報を取得する取得部をさらに備え、
前記取得部の一部は、前記保持部に設けられる請求項1~10の何れか一項に記載の露光装置。 - 前記取得部は、複数の格子領域が設けられる格子部材と、前記格子部材に対して計測ビームを照射するヘッドと、を有し、
前記格子部材と前記ヘッドの一方は、前記保持部に設けられる請求項11に記載の露光装置。 - 前記取得部は、光干渉計システムを含む、
前記保持部には、前記光干渉計を用いた位置計測用の反射面が形成される請求項11に記載の露光装置。 - 前記支持部は、前記物体と前記支持部との間に気体を供給する気体供給孔を有する請求項1~13の何れか1項に記載の露光装置。
- 前記支持部は、前記物体と前記支持部との間の気体を吸引する気体吸引孔を有する請求項14に記載の露光装置。
- 前記支持部は、前記気体供給孔及び前記気体吸引孔が設けられた前記第1部分領域と前記第1部分領域とは異なる位置に設けられた第2部分領域とを有し、
前記第2駆動系は、前記保持部を前記第1及び第2部分領域の一方の部分領域から他方の部分領域に駆動する請求項15に記載の露光装置。 - 前記保持部は、前記物体の外周縁部の少なくとも一部を支持する保持部材を含む請求項1~16の何れか一項に記載の露光装置。
- 前記保持部は、前記保持部材により規定される開口部に架設された補剛部材を有する請求項17に記載の露光装置。
- 前記保持部は、前記物体の外周縁部の一部を保持する第1の部分と、該第1の部分とは分離して設けられ前記物体の外周縁部の他部を保持する第2の部分とを含み、
前記第2駆動系は、前記第1の部分と前記第2の部分とを独立して位置制御することにより前記物体に張力を付与する請求項1~18の何れか一項に記載の露光装置。 - 前記保持部は、前記支持部上に載置される請求項1~19の何れか一項に記載の露光装置。
- 前記第1駆動系は、前記光学系の光軸と直交する所定平面に平行な方向に移動可能に設けられ、前記支持部を前記走査露光時に前記物体が駆動される方向に誘導する誘導装置を備え、
前記保持部は、前記誘導装置上に載置される請求項1~20の何れか一項に記載の露光装置。 - 前記支持部は、前記光学系の光軸と直交する所定平面に平行な方向に前記平行なガイド面を有するガイド部材上に設けられ、
前記保持部は、前記ガイド面上に載置される請求項1~21の何れか一項に記載の露光装置。 - 前記第1駆動系を構成する要素と前記第2駆動系を構成する要素とが、少なくとも一部共通である請求項1~22の何れか一項に記載の露光装置。
- 照明光を物体に照射して、前記照明光に対して前記物体を第1方向に相対移動して前記物体の複数の領域をそれぞれ走査露光する露光装置であって、
前記複数の領域のうち少なくとも第1領域を浮上支持する支持部と、
前記支持部により浮上支持された前記物体を保持する保持部と、
前記支持部を、前記第1方向と前記第1方向に交差する第2方向との一方の方向へ駆動する第1駆動系と、
前記保持部を、他方の方向に関して、前記第1領域が前記支持部を外れるように前記支持部に対して相対駆動する第2駆動系と、を備える露光装置。 - 光学系を介して照明光を物体に照射して、前記照明光に対して前記物体を相対駆動して前記物体を走査露光する露光装置であって、
前記物体を浮上支持する支持部と、
前記支持部によって浮上支持された前記物体を保持する保持部と、
複数の格子領域が設けられる格子部材と、前記格子部材に対して計測ビームを照射するヘッドとを有し、前記保持部の位置に関する情報を取得する取得部と、を備え、
前記格子部材と前記ヘッドの一方は、前記保持部に設けられる露光装置。 - エネルギビームを用いて前記物体に所定のパターンを形成するパターン形成装置をさらに備える請求項1~25の何れか一項に記載の露光装置。
- 前記物体は、フラットパネルディスプレイに用いられる基板である請求項26に記載の露光装置。
- 前記基板は、少なくとも一辺の長さ又は対角長が500mm以上である請求項27に記載の露光装置。
- 請求項1~28の何れか一項に記載の露光装置を用いて前記物体を露光することと、
露光された前記物体を現像することと、を含むフラットパネルディスプレイの製造方法。 - 請求項1~28の何れか一項に記載の露光装置を用いて前記物体を露光することと、
露光された前記物体を現像することと、を含むデバイス製造方法。 - 光学系を介して照明光を物体に照射して、前記照明光に対して前記物体を相対駆動して前記物体の複数の領域をそれぞれ走査露光する露光方法であって、
前記複数の領域のうち少なくとも第1領域を支持部を用いて浮上支持することと、
前記支持部によって浮上支持された前記物体を保持部を用いて保持することと、
前記第1領域に関する走査露光において、前記支持部と前記保持部とがそれぞれ駆動されるように、前記支持部を駆動する第1駆動系、及び前記保持部を駆動する第2駆動系を制御することと、を含む露光方法。 - 前記制御することでは、前記走査露光において、前記保持部を前記支持部に対して相対駆動して前記照明光に対する前記物体の位置を調整するように前記第1及び第2駆動系を制御する請求項31に記載の露光方法。
- 前記保持部は、前記走査露光時に前記物体が駆動される第1方向及び前記第1方向に交差する第2方向に関して、前記支持部に対して相対駆動可能である請求項31又は32に記載の露光方法。
- 前記支持部は、前記保持部を浮上支持する請求項31~33の何れか一項に記載の露光方法。
- 前記支持部及び前記保持部をそれぞれ駆動制御して、前記走査露光を行う領域を前記第1領域から第2領域へ変更すること、を更に含む請求項31~34の何れか一項に記載の露光方法。
- 前記変更することでは、前記第2領域の走査露光を行う前に、前記保持部を前記支持部に対して相対駆動して、前記走査露光を行う前記領域を前記第1領域から前記第2領域へ変更する請求項35に記載の露光方法。
- 前記変更することでは、前記第2駆動系を制御して、前記保持部を、前記第2方向に関して、前記第1領域が前記支持部を外れるように前記支持部に対して相対駆動して、前記走査露光を行う前記領域を前記第1領域から前記第2領域へ変更する請求項35又は36に記載の露光方法。
- 前記浮上支持することでは、前記支持部は、前記第1領域と、前記第1領域と位置が異なる第2領域とを支持し、
前記第2領域は、前記走査露光時に前記物体が移動される第1方向と前記第1方向に交差する第2方向との少なくとも何れか一方の方向に関して、前記第1領域と位置が異なる領域である請求項31~37の何れか一項に記載の露光方法。 - 前記制御することでは、前記照明光に対する前記第1及び第2領域との位置に基づいて前記物体の位置を調整する請求項38に記載の露光方法。
- 前記第1駆動系は、前記支持部を、前記光学系の光軸方向と平行な第3方向に関して前記保持部に対して相対駆動する請求項31~39の何れか一項に記載の露光方法。
- 前記保持部の位置に関する情報を取得部を用いて取得すること、を更に含み、
前記取得部の一部は、前記保持部に設けられる請求項31~40の何れか一項に記載の露光方法。 - 前記取得部は、複数の格子領域が設けられる格子部材と、前記格子部材に対して計測ビームを照射するヘッドと、を有し、
前記格子部材と前記ヘッドの一方は、前記保持部に設けられる請求項41に記載の露光方法。 - 前記取得部は、光干渉計システムを含む、
前記保持部には、前記光干渉計を用いた位置計測用の反射面が形成される請求項41に記載の露光方法。 - 前記支持部は、前記物体と前記支持部との間に気体を供給する気体供給孔を有する請求項31~43の何れか1項に記載の露光方法。
- 前記支持部は、前記物体と前記支持部との間の気体を吸引する気体吸引孔を有する請求項44に記載の露光方法。
- 前記支持部は、前記気体供給孔及び前記気体吸引孔が設けられた前記第1部分領域と前記第1部分領域とは異なる位置に設けられた第2部分領域とを有し、
前記第2駆動系は、前記保持部を前記第1及び第2部分領域の一方の部分領域から他方の部分領域に駆動する請求項45に記載の露光方法。 - 前記保持部は、前記物体の外周縁部の少なくとも一部を支持する保持部材を含む請求項31~46の何れか一項に記載の露光方法。
- 前記保持部は、前記保持部材により規定される開口部に架設された補剛部材を有する請求項47に記載の露光方法。
- 前記保持部は、前記物体の外周縁部の一部を保持する第1の部分と、該第1の部分とは分離して設けられ前記物体の外周縁部の他部を保持する第2の部分とを含み、
前記第2駆動系は、前記第1の部分と前記第2の部分とを独立して位置制御することにより前記物体に張力を付与する請求項31~48の何れか一項に記載の露光方法。 - 前記保持部は、前記支持部上に載置される請求項31~49の何れか一項に記載の露光方法。
- 前記第1駆動系は、前記光学系の光軸と直交する所定平面に平行な方向に移動可能に設けられ、前記支持部を前記走査露光時に前記物体が駆動される方向に誘導する誘導装置を備え、
前記保持部は、前記誘導装置上に載置される請求項31~50の何れか一項に記載の露光方法。 - 前記支持部は、前記光学系の光軸と直交する所定平面に平行な方向に前記平行なガイド面を有するガイド部材上に設けられ、
前記保持部は、前記ガイド面上に載置される請求項31~51の何れか一項に記載の露光方法。 - 前記第1駆動系を構成する要素と前記第2駆動系を構成する要素とが、少なくとも一部共通である請求項31~52の何れか一項に記載の露光方法。
- 照明光を物体に照射して、前記照明光に対して前記物体を第1方向に相対移動して前記物体の複数の領域をそれぞれ走査露光する露光方法であって、
前記複数の領域のうち少なくとも第1領域を支持部を用いて浮上支持することと、
前記支持部によって浮上支持された前記物体を保持部を用いて保持することと、
前記支持部を、前記第1方向と前記第1方向に交差する第2方向との一方の方向へ第1駆動系を用いて駆動することと、
前記保持部を、他方の方向に関して、前記第1領域が前記支持部を外れるように前記支持部に対して第2駆動系を用いて相対駆動することと、を含む露光方法。 - 光学系を介して照明光を物体に照射して、前記照明光に対して前記物体を相対駆動して前記物体を走査露光する露光方法であって、
前記物体を支持部を用いて浮上支持することと、
前記支持部によって浮上支持された前記物体を保持部を用いて保持することと、
複数の格子領域が設けられる格子部材と、前記格子部材に対して計測ビームを照射するヘッドとを有する取得部を用いて、前記保持部の位置に関する情報を取得することと、を含み、
前記格子部材と前記ヘッドの一方は、前記保持部に設けられる露光方法。 - エネルギビームを用いて前記物体に所定のパターンを形成すること、を更に含む請求項31~55の何れか一項に記載の露光方法。
- 前記物体は、フラットパネルディスプレイに用いられる基板である請求項56に記載の露光方法。
- 前記基板は、少なくとも一辺の長さ又は対角長が500mm以上である請求項57に記載の露光方法。
- 請求項31~58の何れか一項に記載の露光方法を用いて前記物体を露光することと、
露光された前記物体を現像することと、を含むフラットパネルディスプレイの製造方法。 - 請求項31~58の何れか一項に記載の露光方法を用いて前記物体を露光することと、
露光された前記物体を現像することと、を含むデバイス製造方法。
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CN201680020108.4A CN107407893B (zh) | 2015-03-31 | 2016-03-30 | 曝光装置、平板显示器的制造方法、器件制造方法及曝光方法 |
JP2017510152A JP6738542B2 (ja) | 2015-03-31 | 2016-03-30 | 露光装置、フラットパネルディスプレイの製造方法、デバイス製造方法、及び露光方法 |
US15/711,377 US10564548B2 (en) | 2015-03-31 | 2017-09-21 | Exposure apparatus, manufacturing method of flat-panel display, device manufacturing method, and exposure method |
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US16/781,370 US10983438B2 (en) | 2015-03-31 | 2020-02-04 | Exposure apparatus, manufacturing method of flat-panel display, device manufacturing method, and exposure method |
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JP6738542B2 (ja) * | 2015-03-31 | 2020-08-12 | 株式会社ニコン | 露光装置、フラットパネルディスプレイの製造方法、デバイス製造方法、及び露光方法 |
US10649348B2 (en) * | 2016-09-30 | 2020-05-12 | Nikon Corporation | Movable body apparatus, moving method, exposure apparatus, exposure method, flat-panel display manufacturing method, and device manufacturing method |
CN106876233B (zh) * | 2017-03-09 | 2018-09-14 | 成都京东方光电科技有限公司 | 承载装置及离子注入设备 |
JP6781965B2 (ja) * | 2017-03-31 | 2020-11-11 | 株式会社ニコン | 物体保持装置、処理装置、フラットパネルディスプレイの製造方法、及びデバイス製造方法 |
US11592756B2 (en) | 2018-06-05 | 2023-02-28 | Asml Netherlands B.V. | Assembly comprising a cryostat and layer of superconducting coils and motor system provided with such an assembly |
KR20210011536A (ko) * | 2019-07-22 | 2021-02-02 | 삼성디스플레이 주식회사 | 미세 소자의 전사 장치 및 전사 방법 |
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CN114111691A (zh) * | 2021-11-19 | 2022-03-01 | 三英精控(天津)仪器设备有限公司 | 一种晶圆检测高精度气浮运动平台及方法 |
CN115790455B (zh) * | 2022-12-26 | 2023-12-01 | 武汉国创科光电装备有限公司 | 一种喷墨打印基板平整度检测系统 |
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JP2020190740A (ja) | 2020-11-26 |
CN107407893B (zh) | 2021-06-01 |
CN113204177A (zh) | 2021-08-03 |
TW202117466A (zh) | 2021-05-01 |
HK1246870A1 (zh) | 2018-09-14 |
TWI789689B (zh) | 2023-01-11 |
JPWO2016159176A1 (ja) | 2018-02-01 |
US20180067397A1 (en) | 2018-03-08 |
CN107407893A (zh) | 2017-11-28 |
US10564548B2 (en) | 2020-02-18 |
US10983438B2 (en) | 2021-04-20 |
KR102584657B1 (ko) | 2023-10-04 |
US20200174373A1 (en) | 2020-06-04 |
TWI719975B (zh) | 2021-03-01 |
TW201643556A (zh) | 2016-12-16 |
TW202311869A (zh) | 2023-03-16 |
JP6738542B2 (ja) | 2020-08-12 |
KR20170128602A (ko) | 2017-11-22 |
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