WO2006006565A1 - 露光装置及びデバイス製造方法 - Google Patents
露光装置及びデバイス製造方法 Download PDFInfo
- Publication number
- WO2006006565A1 WO2006006565A1 PCT/JP2005/012776 JP2005012776W WO2006006565A1 WO 2006006565 A1 WO2006006565 A1 WO 2006006565A1 JP 2005012776 W JP2005012776 W JP 2005012776W WO 2006006565 A1 WO2006006565 A1 WO 2006006565A1
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- WO
- WIPO (PCT)
- Prior art keywords
- liquid
- exposure apparatus
- light
- base member
- detection
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/027—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34
- H01L21/0271—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers
- H01L21/0273—Making masks on semiconductor bodies for further photolithographic processing not provided for in group H01L21/18 or H01L21/34 comprising organic layers characterised by the treatment of photoresist layers
- H01L21/0274—Photolithographic processes
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70216—Mask projection systems
- G03F7/70341—Details of immersion lithography aspects, e.g. exposure media or control of immersion liquid supply
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2022—Multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g. for edge bead removal; corrective exposure
- G03F7/2026—Multi-step exposure, e.g. hybrid; backside exposure; blanket exposure, e.g. for image reversal; edge exposure, e.g. for edge bead removal; corrective exposure for the removal of unwanted material, e.g. image or background correction
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/20—Exposure; Apparatus therefor
- G03F7/2041—Exposure; Apparatus therefor in the presence of a fluid, e.g. immersion; using fluid cooling means
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/70691—Handling of masks or workpieces
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/7085—Detection arrangement, e.g. detectors of apparatus alignment possibly mounted on wafers, exposure dose, photo-cleaning flux, stray light, thermal load
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
- G03F7/70—Microphotolithographic exposure; Apparatus therefor
- G03F7/708—Construction of apparatus, e.g. environment aspects, hygiene aspects or materials
- G03F7/70908—Hygiene, e.g. preventing apparatus pollution, mitigating effect of pollution or removing pollutants from apparatus
- G03F7/70916—Pollution mitigation, i.e. mitigating effect of contamination or debris, e.g. foil traps
Definitions
- the present invention relates to an exposure apparatus that exposes a substrate through a liquid and a device manufacturing method.
- Semiconductor devices and liquid crystal display devices are manufactured by a so-called photolithography technique in which a pattern formed on a mask is transferred onto a photosensitive substrate.
- An exposure apparatus used in this photolithography process includes a mask stage that supports a mask and a substrate stage that supports the substrate, and the mask pattern is transferred via a projection optical system while sequentially moving the mask stage and the substrate stage. Transfer to the substrate.
- the resolution of the projection optical system becomes higher as the exposure wavelength used is shorter and the numerical aperture of the projection optical system is larger. For this reason, the exposure wavelength used in the exposure apparatus has become shorter year by year, and the numerical aperture of the projection optical system has also increased.
- the mainstream exposure wavelength is 248 nm for KrF excimer lasers, and 193 nm for ArF excimer lasers with shorter wavelengths is also being put into practical use.
- the depth of focus (DOF) is as important as the resolution.
- the resolution R and the depth of focus ⁇ are expressed by the following equations, respectively.
- ⁇ is the exposure wavelength
- ⁇ is the numerical aperture of the projection optical system
- k is the numerical aperture of the projection optical system
- Patent Document 1 Pamphlet of International Publication No. 99Z49504
- the environment (humidity, etc.) in which the exposure apparatus is placed fluctuates. For example, the position of the stage is measured.
- the spilled liquid may cause inconveniences such as failure, electric leakage, and the occurrence of peripherals in peripheral devices and the like, which may cause deterioration in exposure accuracy and measurement accuracy.
- the damage may be increased, for example, by affecting various devices that make up the exposure apparatus.
- the present invention has been made in view of such circumstances, and an exposure apparatus and a device manufacturing method that can prevent damage from spreading due to the spilled liquid and perform exposure processing and measurement processing satisfactorily.
- the purpose is to provide.
- the present invention employs the following configurations corresponding to FIGS. 1 to 24 shown in the embodiments.
- the reference numerals in parentheses attached to each element are merely examples of the element and do not limit each element.
- the exposure apparatus (EX) of the present invention includes a movable table (PT, ⁇ 1, ⁇ 2) and a table ( ⁇ , ⁇ ) in an exposure apparatus that exposes a substrate (P) through a liquid (LQ).
- the detection device for detecting whether or not the liquid is present on the upper surface of the base member for guiding the movement of the table is provided, when the detection device detects the liquid, the liquid body is detected. It is possible to quickly take appropriate measures such as removing the. Therefore, it is possible to prevent the damage caused by the spilled liquid from spreading and to perform exposure processing and measurement processing satisfactorily.
- the exposure apparatus (EX) of the present invention includes a detection apparatus (60) capable of detecting the liquid (LQ) in the exposure apparatus that exposes the substrate (P) via the liquid (LQ), and a detection apparatus ( 60) and a movable member (44, 50, PT, etc.) that can move while being supported.
- the present invention it is possible to detect whether or not there is liquid in a relatively wide area of the detection target area by moving the detection apparatus capable of detecting liquid supported by the movable member. . Therefore, it is possible to prevent the damage caused by the spilled liquid from spreading and to perform exposure processing and measurement processing satisfactorily.
- a device manufacturing method of the present invention is characterized by using the exposure apparatus (EX) described above.
- FIG. 1 is a schematic block diagram that shows an embodiment of an exposure apparatus of the present invention.
- FIG. 2 is a schematic configuration diagram showing a substrate table.
- FIG. 3 is a plan view of the substrate table as viewed from above.
- FIG. 4 is a schematic diagram for explaining a state in which the detection device detects a liquid.
- FIG. 5 is a schematic diagram showing a positional relationship between detection light and a base member surface.
- FIG. 6 is a diagram for explaining an example of an irradiation position of detection light.
- FIG. 7 is a diagram for explaining how the substrate table moves between an exposure position and a load / unload position.
- Fig. 8 is a diagram showing another form of a state in which the detection device detects a liquid.
- FIG. 9 is a diagram showing a modification of the installation position of the detection device.
- FIG. 10 is a diagram showing a modification of the installation position of the detection device.
- FIG. 11 is a diagram showing a modification of the installation position of the detection device.
- FIG. 12 is a diagram showing another embodiment of the detection apparatus.
- FIG. 13 is a diagram showing another embodiment of the detection device.
- FIG. 14 is a diagram showing another embodiment of the detection apparatus.
- FIG. 15 is a diagram showing another embodiment of the detection apparatus.
- FIG. 16 is a diagram showing another embodiment of the detection apparatus.
- FIG. 17 is a view for explaining a liquid recovery mechanism for recovering the liquid on the base member.
- FIG. 18 is a diagram showing the positional relationship between the liquid recovery port provided in the gas bearing and the detection device.
- FIG. 19 is a view showing an example of an exposure apparatus including a first table and a second table.
- FIG. 20 is a diagram showing another embodiment of the detection apparatus.
- FIG. 21 is a cross-sectional view taken along line AA in FIG.
- FIG. 22 is a perspective view showing another embodiment of the liquid recovery mechanism.
- FIG. 23 is a diagram showing another embodiment of the detection apparatus.
- FIG. 24 is a flowchart showing an example of a semiconductor device manufacturing process.
- Nozzle member CONT ... Control equipment, EX ... Exposure equipment, FD ... Floor surface, La ... Detection light, LQ ... Liquid, P ... Substrate, PST ... Substrate stage, PSTD ... Substrate table drive mechanism, PT ... Substrate table, PT1 ... Substrate table, ⁇ 2 ⁇ Measurement table, ⁇ ⁇ Substrate table bottom surface, PTE BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a schematic block diagram showing an embodiment of an exposure apparatus according to the present invention.
- the exposure apparatus EX supports a mask table MT that can move while supporting the mask M, a substrate table PT that can move while supporting the substrate P, and the mask table MT.
- Illumination optical system IL that illuminates the mask M with the exposure light EL
- projection optical system that projects and exposes the pattern image of the mask M illuminated with the exposure light EL onto the substrate P supported by the substrate table PT PL
- a control device CONT that controls the overall operation of the exposure apparatus EX are provided.
- Connected to the control device CONT is an alarm device K that issues an alarm when an abnormality occurs in the exposure process.
- the exposure apparatus EX includes a main column 3 that supports the projection optical system PL and the like.
- the main column 3 is provided on a surface plate 4 placed horizontally on the floor FD.
- the main column 3 is formed with an upper step 3A and a lower step 3B projecting inward.
- the exposure apparatus EX of the present embodiment is an immersion exposure apparatus to which an immersion method is applied in order to substantially shorten the exposure wavelength to improve the resolution and substantially increase the depth of focus.
- the liquid immersion mechanism 1 capable of forming the liquid LQ liquid immersion area AR2 on the substrate P is provided.
- the liquid immersion mechanism 1 includes a liquid supply mechanism 10 that supplies the liquid LQ onto the substrate P, and a liquid recovery mechanism 20 that collects the liquid LQ on the substrate P.
- the exposure apparatus EX uses the liquid LQ supplied from the liquid supply mechanism 10 to transfer the image on the substrate P including the projection area AR1 of the projection optical system PL.
- a liquid immersion area AR2 that is larger than the projection area AR1 and smaller than the substrate P is locally formed in the portion.
- the exposure apparatus EX fills the liquid LQ between the optical element 2 at the image plane side tip of the projection optical system PL and the surface of the substrate P to form an immersion area AR2, and this projection optical system
- the substrate P is exposed by projecting the pattern image of the mask M onto the substrate P via the liquid LQ between the PL and the substrate P and the projection optical system PL.
- a nozzle member constituting a part of the liquid immersion mechanism 1 is provided in the vicinity of the image plane of the projection optical system PL, specifically, in the vicinity of the optical element 2 at the image plane side end of the projection optical system PL. 70 is placed.
- the nozzle member 70 is located at the tip of the projection optical system PL above the substrate P (substrate table PT). It is the annular member provided so that the circumference
- the exposure apparatus EX has a base member 41 having an upper surface 41A for guiding the movement of the substrate table PT, and a liquid is formed on the upper surface 41A of the base member 41.
- a detecting device 60 for detecting whether or not the LQ is present is provided.
- the exposure apparatus EX scanning that exposes the pattern formed on the mask M onto the substrate P while synchronously moving the mask M and the substrate P in different directions (reverse directions) in the scanning direction.
- a case of using a type exposure apparatus (so-called scanning stepper) will be described as an example.
- the direction that coincides with the optical axis AX of the projection optical system PL is the Z-axis direction
- the synchronous movement direction (scanning direction) of the mask M and the substrate P in the plane perpendicular to the Z-axis direction is the X-axis direction
- the direction perpendicular to the Z-axis direction and X-axis direction (non-scanning direction) is the Y-axis direction.
- the rotation (tilt) directions around the X, Y, and Z axes are the ⁇ , 0 ⁇ , and 0 ⁇ directions, respectively.
- the “substrate” includes a semiconductor wafer coated with a photoresist, which is a photosensitive material
- the “mask” includes a reticle on which a device pattern to be reduced and projected on the substrate is formed.
- the illumination optical system IL is supported by a support column 5 fixed to the upper part of the main column 3.
- the illumination optical system IL illuminates the mask ⁇ supported by the mask table ⁇ with the exposure light EL, and the exposure light source and the optical integrator and optical integrator that equalize the illuminance of the light beam emitted from the exposure light source.
- the condenser lens that collects the exposure light EL from the relay lens system, and the variable field stop that sets the illumination area on the mask ⁇ with the exposure light EL in a slit shape.
- the predetermined illumination area on the mask ⁇ is illuminated with the exposure light EL having a uniform illuminance distribution by the illumination optical system IL.
- Exposure light EL emitted from the illumination optical system IL includes, for example, far ultraviolet light (DUV light) such as bright lines (g-line, h-line, i-line) and KrF excimer laser light (wavelength 248 nm) that are also emitted by mercury lamp force And vacuum ultraviolet light such as Ar F excimer laser light (wavelength 193 nm) and F laser light (wavelength 157 nm)
- DUV light far ultraviolet light
- KrF excimer laser light wavelength 248 nm
- mercury lamp force And vacuum ultraviolet light such as Ar F excimer laser light (wavelength 193 nm) and F laser light (wavelength 157 nm)
- VUV light VUV light
- ArF excimer laser light ArF excimer laser light
- pure water is used as the liquid LQ.
- Pure water is not only ArF excimer laser light, but, for example, emission lines (g-line, h-line, i-line) and KrF Far ultraviolet light (DUV light) such as excimer laser light (wavelength 248 nm) can also be transmitted.
- emission lines g-line, h-line, i-line
- KrF Far ultraviolet light DUV light
- excimer laser light wavelength 248 nm
- the mask table MT is provided so as to be movable while holding the mask M! /.
- a base member 31 is supported on the upper step 3 ⁇ / b> A of the main column 3 via a vibration isolation unit 6.
- a plurality of gas bearings (air bearings) 32 which are non-contact bearings are provided on the lower surface of the mask table MT.
- the mask table MT is supported non-contact with the upper surface (guide surface) 31A of the base member 31 by the air bearing 32, and is perpendicular to the optical axis AX of the projection optical system PL by the mask table drive mechanism including a linear motor. It can move two-dimensionally in a flat plane, that is, in the XY plane, and can rotate slightly in the ⁇ Z direction.
- These mask table MT, mask table drive mechanism, and the like constitute at least part of a mask stage MST that supports and moves the mask M.
- a movable mirror 35 is provided on the mask table MT.
- a laser interferometer 36 is provided at a position facing the movable mirror 35! /.
- the position of the mask table MT supporting the mask M in the two-dimensional direction and the rotation angle in the ⁇ Z direction are measured in real time by the laser interferometer 36.
- the result is output to the controller C ONT.
- the control device CONT controls the position of the mask M supported by the mask table MT by driving the mask table driving mechanism based on the measurement result of the laser interferometer 36.
- Projection optical system PL projects the pattern of mask M onto substrate ⁇ at a predetermined projection magnification ⁇ , and includes a plurality of optical elements (lenses) 2 provided at the tip of substrate ⁇ side. It is composed of optical elements, and these optical elements are supported by a lens barrel.
- the optical element 2 at the tip of the projection optical system ⁇ L is exposed from the lens barrel ⁇ and comes into contact with the liquid LQ in the immersion area AR2.
- the liquid contact surface (bottom surface) 2 ⁇ ⁇ ⁇ of the optical element 2 that contacts the liquid LQ in the immersion area AR2 is lyophilic with respect to the liquid LQ.
- the projection optical system PL is a reduction system having a projection magnification ⁇ of 1 ⁇ 4, 1/5, or 1Z8, for example.
- the projection optical system PL may be either an equal magnification system or an enlargement system.
- Projection optical system PL may be any of a refraction system that does not include a reflection element, a reflection system that does not include a refraction element, or a catadioptric system that includes a refraction element and a reflection element.
- Projection optical system The lens barrel surface plate 8 that supports the lens barrel PK is connected to the lower side of the main column 3 via the image stabilization unit 7. Supported by step 3B.
- the substrate table PT is provided so as to be movable while holding the substrate P via the substrate holder PH.
- a recess 53 is provided on the substrate table PT, and the substrate holder PH is disposed in the recess 53.
- the upper surface 43 of the substrate table PT is a flat surface, and the upper surface 43 and the surface of the substrate P held by the substrate holder PH are substantially flush with each other.
- a plurality of gas bearings (air bearings) 42 which are non-contact bearings, are provided on the lower surface of the substrate table PT.
- a base member 41 is supported on the surface plate 4 via a vibration isolation unit 9.
- the air bearing 42 has a bearing surface 42S facing the upper surface (guide surface) 41A of the base member 41.
- the air bearing 42 is provided on the bearing surface 42S.
- the air bearing 42 is provided on the bearing surface 42S and the air outlet 42B that blows gas (air) to the upper surface 41A of the base member 41.
- the air bearing 42 is provided between the bearing surface 42S and the guide surface 41A. It is equipped with an air inlet 42A that sucks the gas between them.
- the air bearing 42 is formed between the lower surface PTA (bearing surface 42S) of the substrate table PT and the guide surface 41A by balancing the repulsive force caused by the gas blown from the air outlet 42B and the suction force generated by the air inlet 42A.
- the substrate table PT is supported in a non-contact manner with respect to the upper surface 41A of the base member 41.
- the substrate table PT includes a linear motor 47, 48, an X guide stage 44, a guided member 50, etc., which will be described later, in a state where the substrate table PT is supported by the air bearing 42 in a non-contact manner on the upper surface 41A of the base member 41.
- Substrate table drive mechanism P STD is guided by the upper surface 41A of the base member 41, and can be moved two-dimensionally in the plane perpendicular to the optical axis AX of the projection optical system PL, that is, in the XY plane, and slightly rotated in the ⁇ Z direction Yes, it is possible.
- the substrate holder PH on the substrate table PT is provided so as to be movable in the Z-axis direction, ⁇ X direction, and ⁇ Y direction by a holder driving mechanism (not shown).
- These substrate table PT and substrate table driving mechanism PSTD constitute a substrate stage PST that supports and moves the substrate P.
- the holder drive mechanism and the substrate table drive mechanism PSTD are controlled by the controller CONT.
- the exposure apparatus EX includes a focus / leveling detection system (not shown) for detecting the position of the surface of the substrate P supported by the substrate table PT.
- the focus / leveling detection system detects position information in the Z-axis direction of the surface of the substrate P and tilt information of the substrate P in the ⁇ X and ⁇ Y directions.
- As a configuration of the focus / leveling detection system for example, JP Those disclosed in JP-A-8-37149 can be used.
- the detection result of the focus / leveling detection system is output to the controller CONT.
- the control device CONT drives the holder drive mechanism based on the detection result of the focus leveling detection system, and the focus position (Z position) of the surface of the substrate P held by the substrate holder PH and The surface of the substrate P is adjusted to the image plane of the projection optical system PL by controlling the tilt angle.
- a movable mirror 45 is provided on the substrate table PT.
- a laser interferometer 46 is provided at a position facing the moving mirror 45. The position and rotation angle of the substrate table PT supporting the substrate P are measured in real time by the laser interferometer 46, and the measurement result is output to the control device CONT.
- the controller CONT drives the substrate table drive mechanism PSTD based on the measurement result of the laser interferometer 46 to position the substrate P supported by the substrate table PT in the X-axis direction and the Y-axis direction.
- the substrate table PT is supported by the X guide stage 44 so as to be movable in the X-axis direction.
- the substrate table PT can be moved with a predetermined stroke in the X-axis direction by the X linear motor 47 while being guided by the X guide stage 44.
- the X linear motor 47 includes a stator 47A provided on the X guide stage 44 so as to extend in the X-axis direction, and a mover 47B provided corresponding to the stator 47A and fixed to the substrate table PT. ing. Then, when the movable element 47B is driven with respect to the stator 47A, the substrate table PT moves in the X-axis direction while being supported in a non-contact manner on the X guide stage 44.
- a pair of Y linear motors 48, 48 that can move the X guide stage 44 along with the substrate table PT in the Y-axis direction are provided at both ends in the longitudinal direction of the X guide stage 44.
- Each of the Y linear motors 48 includes a movable element 48B provided at both ends in the longitudinal direction of the X guide stage 44, and a stator 48A provided corresponding to the movable element 48B. Then, when the mover 48B is driven with respect to the stator 48A, the X guide stage 44 moves in the Y-axis direction together with the substrate table PT.
- the X guide stage 44 and the substrate table PT can also be rotated in the ⁇ Z direction.
- guide portions 49 that are formed in an L shape and guide the movement of the X guide stage 44 in the Y-axis direction are provided.
- Guide 49 is fixed Supported on panel 4.
- the stator 48A of the Y linear motor 48 is provided on the flat portion 49B of the guide portion 49.
- a concave guided member 50 (50A, 50B) is provided at each of both ends in the longitudinal direction of the lower surface of the X guide stage 44.
- the guide portion 49 is engaged with the guided member 50, and is provided so that the upper surface (guide surface) 49A of the guide portion 49 and the inner surface of the guided member 50 face each other.
- a gas bearing (air bearing) 51 which is a non-contact bearing, is provided on the guide surface 49A of the guide portion 49, and the X guide stage 44 is supported in a non-contact manner with respect to the guide surface 49A.
- the guided member 50 moves as the X guide stage 44 moves.
- a gas bearing (air bearing) 52 which is a non-contact bearing is interposed between the stator 48A of the Y linear motor 48 and the flat portion 49B of the guide portion 49, and the stator 48A
- the bearing 52 supports the flat portion 49B of the guide portion 49 in a non-contact manner. Therefore, according to the law of conservation of momentum, the stator 48A moves in the ⁇ Y direction (+ Y direction) in accordance with the movement of the X guide stage 44 and the substrate table PT in the + Y direction ( ⁇ Y direction). This movement of the stator 48 A cancels the reaction force associated with the movement of the X guide stage 44 and the substrate table PT, and can prevent the change in the position of the center of gravity. That is, the stator 48A has a function as a so-called countermass!
- the liquid supply mechanism 10 is for supplying the liquid LQ to the space on the image plane side of the projection optical system PL.
- the liquid supply mechanism 10 can supply the liquid LQ to the liquid supply unit 11 and the liquid supply unit 11.
- a supply pipe 13 for connecting one end is provided.
- the other end of the supply pipe 13 is connected to the nozzle member 70.
- the liquid supply unit 11 includes a tank that stores the liquid LQ, a pressure pump, and the like.
- tanks and pressure pumps may not be equipped with the exposure apparatus EX, but at least a part of them may be replaced with equipment such as a factory where the exposure apparatus EX is installed.
- a valve 15 that opens and closes the flow path of the supply pipe 13 is provided in the middle of the supply pipe 13.
- the opening / closing operation of the valve 15 is controlled by the control device CONT.
- the valve 15 in the present embodiment is a so-called normal close system that mechanically closes the flow path of the supply pipe 13 when the drive source (power supply) of the exposure apparatus EX (control apparatus CONT) stops due to, for example, a power failure. And speak.
- the liquid recovery mechanism 20 is for recovering the liquid LQ from the space on the image plane side of the projection optical system PL, and includes a liquid recovery unit 21 that can recover the liquid LQ, and a liquid recovery unit 21 And a recovery pipe 23 connected to one end. The other end of the recovery pipe 23 is connected to the nozzle member 70.
- the liquid recovery unit 21 includes, for example, a vacuum system (suction device) such as a vacuum pump, a gas-liquid separator that separates the recovered liquid LQ and gas, and a tank that stores the recovered liquid LQ.
- a vacuum system suction device
- the vacuum system, gas-liquid separator, tank, etc. may not be equipped with the exposure apparatus EX, but at least a part of them may be replaced with equipment such as a factory where the exposure apparatus EX is installed. Good.
- a nozzle member 70 is disposed in the vicinity of the optical element 2 in contact with the liquid LQ.
- the nozzle member 70 is an annular member provided so as to surround the side surface of the optical element 2 above the substrate P (substrate table PT).
- a gap is provided between the nozzle member 70 and the optical element 2, and the nozzle member 70 is supported by a predetermined support mechanism so as to be vibrationally separated from the optical element 2.
- the lower surface 70A of the nozzle member 70 is provided above the substrate P (substrate table PT) and faces the surface of the substrate P (upper surface 43 of the substrate table PT).
- the lower surface 70A of the nozzle member 70 and the lower surface 2A of the optical element 2 are substantially flat surfaces, and the lower surface 70A of the nozzle member 70 and the lower surface 2A of the optical element 2 are substantially flush with each other. Thereby, it is possible to satisfactorily form the liquid immersion area AR 2 within a desired range.
- a liquid supply port 12 for supplying the liquid LQ onto the substrate P is provided on the lower surface 70A of the nozzle member 70.
- a plurality of liquid supply ports 12 are provided on the lower surface 70A of the nozzle member 70.
- an internal flow path that connects the other end of the supply pipe 13 and the liquid supply port 12 is formed inside the nozzle member 70.
- a liquid recovery port 22 for recovering the liquid LQ on the substrate P is provided on the lower surface 70A of the nozzle member 70.
- the liquid recovery port 22 is provided on the lower surface 70A of the nozzle member 70 outside the optical axis AX of the optical element 2 so as to surround the liquid supply port 12.
- an internal flow path that connects the other end of the recovery pipe 23 and the liquid recovery port 22 is formed inside the nozzle member 70.
- the operations of the liquid supply unit 11 and the liquid recovery unit 21 are controlled by the control device CONT.
- the control device CONT sends the liquid LQ from the liquid supply unit 11 and the substrate via the supply pipe 13 and the internal flow path of the nozzle member 70.
- the liquid LQ is supplied onto the substrate P from the liquid supply port 12 provided above P. Further, the liquid LQ on the substrate P is recovered from the liquid recovery port 22 and is recovered in the liquid recovery part 21 via the recovery flow path of the nozzle member 70 and the recovery pipe 23.
- the structure of the liquid immersion mechanism 1 is not limited to the one described above. For example, in European Patent Publication No. 1420298, International Publication No. 2004Z0 55803, International Publication No. 2004Z057589, International Publication No. 2004,057590 Those described can also be used.
- FIG. 2 is a perspective view showing the substrate stage PST
- FIG. 3 is a plan view of the substrate stage PST.
- the detection device 60 detects whether or not the liquid LQ is present on the upper surface 41A of the base member 41 that guides the movement of the substrate table PT.
- the detection device 60 includes a light projecting unit 61 that emits the detection light La, and a light receiving unit 62 that is disposed at a predetermined position with respect to the detection light La.
- the light projecting unit 61 includes a first guided member 50A provided on the ⁇ X side with respect to the base member 41, out of the two first and second guided members 5OA and 50B facing each other.
- the light receiving section 62 is attached to a second guided member 50B provided on the + X side.
- the light projecting portion 61 and the light receiving portion 62 attached to each of the first and second guided members 50A and 50B are provided so as to face each other with the base member 41 interposed therebetween.
- the guided member 50 is attached to the X guide stage 44 that constitutes a part of the substrate table drive mechanism PSTD for driving the substrate table PT, and the detection device 60 of this embodiment.
- the light projecting unit 61 and the light receiving unit 62 are provided in the substrate table driving mechanism PSTD for moving the substrate table PT.
- the guided member 50 is a movable member that moves relative to the base member 41 together with the X guide stage 44 when the Y linear motor 48 is driven. Therefore, the detection device 60 (the light projecting unit 61 and the light receiving unit 62) is configured to be attached to a movable member (guided member 50) that is movable with respect to the base member 41.
- a plurality of light projecting units 61 are provided in the first guided member 50A in the Y-axis direction, and the light receiving unit 62 is composed of the light projecting unit 61.
- a plurality (two) of the second guided members 50B are provided side by side. Then, by driving the Y linear motor 48, the first guided member 50A that supports the light projecting unit 61 and the second guided member 50B that supports the light receiving unit 62 are synchronously moved! /, The
- FIG. 4 is a side view schematically showing the positional relationship between the detection device 60 and the base member 41.
- the detection light La emitted from the light projecting unit 61 of the detection device 60 is irradiated substantially parallel to the upper surface 41 A of the base member 41. Then, the detection device 60 detects whether or not the liquid LQ is present on the upper surface 41A of the base member 41 based on the light reception result of the light receiving unit 62.
- the light projecting unit 61 and the light receiving unit 62 are opposed to each other, and the detection light La emitted from the light projecting unit 61 reaches the light receiving unit 62, and the light receiving unit 62 has a predetermined light intensity (light intensity). It is designed to receive light.
- a liquid LQ liquid droplet water droplet
- the detection light La is irradiated to the liquid LQ
- the detection light La Is refracted, scattered or absorbed by the liquid LQ.
- the detection device 60 can detect whether or not the liquid LQ is present on the optical path of the detection light La based on the light reception result (light reception amount) of the light receiving unit 62. Then, by detecting whether or not the liquid La is present on the optical path of the detection light La, the detection device 60 can detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41.
- the detection device 60 is configured to optically detect the liquid LQ (in a non-contact manner), for example, in the vicinity of the base member 41 or the substrate table drive mechanism PSTD. There is no need to arrange wiring or various devices. Therefore, the influence on the movement of the substrate table PT and the substrate table drive mechanism PSTD can be reduced.
- Visible light or the like can be used as the detection light La, but infrared light having a predetermined wavelength (predetermined wavelength band) is preferably used. Specifically, it is preferable to use infrared light having wavelengths of, for example, about 1200 nm, about 1450 nm, about 1940 nm, and about 2950 nm as the detection light La. Since water (liquid) LQ absorbs light (infrared light) of the above wavelength, when the liquid LQ is irradiated with detection light (infrared light) La having the above wavelength, the detection light La Light energy Lugi is absorbed by water (liquid) LQ, and the amount of light received by the light receiving unit 62 is greatly reduced.
- infrared light having a predetermined wavelength predetermined wavelength band
- the apparatus 60 can detect with high sensitivity whether or not the liquid LQ is present.
- infrared light having the above wavelength for example, infrared light having a wavelength of about 1940 nm (2 ⁇ m band laser light) and infrared light having a wavelength of about 2950 nm (3 ⁇ m band) (2 laser beam) may be irradiated.
- irradiate detection light that is a combination of three or more laser beams having different wavelengths (wavelength bands).
- the detection light La is configured to irradiate substantially parallel to the upper surface 41A of the base member 41, and whether or not the liquid La is present on the optical path of the detection light La is determined. By detecting this, it is configured to detect whether the liquid LQ is present on the base member 41 or not. That is, when the liquid LQ is present on the base member 41, it is necessary to reliably irradiate the liquid LQ with the detection light La. For this reason, the detection device 60 allows the detection light La to pass inside a region within a predetermined distance from the surface of the base member 41 in order to reliably irradiate the liquid LQ existing on the base member 41 with the detection light La. I have to. Specifically, the detection light La is set so as to pass through a region within 5.5 mm away from the upper surface 41 A of the base member 41. This will be described with reference to FIG.
- the liquid LQ is arranged in the form of liquid droplets (water droplets) on the upper surface 41 A of the base member 41.
- h [(2XT) X (l-cos0) / (pXg)] 1/2 ... (2A).
- the contact angle ⁇ is a value smaller than 180 °, the height h is also less than 5.5 mm. Therefore, by setting the distance D between the upper surface 41A of the base member 41 and the detection light La irradiated almost parallel to the upper surface 41A to be 5.5 mm or less, the upper surface 41A of the base member 41 is It is possible to reliably irradiate the existing liquid LQ with the detection light La.
- the controller CONT drives the liquid immersion mechanism 1 to expose the substrate P loaded on the substrate table PT, and forms the liquid LQ liquid immersion area AR2 on the substrate P.
- the control device CONT illuminates the mask M with the exposure light EL using the illumination optical system IL, and projects the pattern image of the mask M onto the substrate P via the projection optical system PL and the liquid LQ.
- the exposure apparatus EX in the present embodiment performs scanning exposure on the substrate P with the pattern formed on the mask M while moving the mask M and the substrate P synchronously.
- a plurality of shot areas SH are set in a matrix on the substrate P. After the exposure to one shot area SH is completed, the next shot is moved by the stepping movement of the substrate P.
- the area SH moves to the starting position, and scanning exposure processing is sequentially performed on each shot area while moving the substrate P by the step-and-scan method.
- the control device CONT drives the X linear motor 47 and the Y linear motor 48 that constitute the substrate table drive mechanism PSTD in order to move the substrate table PT that supports the substrate P.
- the guided members 50 (50A, 50B) supporting the detection device 60 also move relative to the base member 41.
- the detection light La is constantly emitted from the light projecting unit 61 of the detection device 60 during and before and after the exposure of the substrate P.
- the liquid LQ may flow out from the substrate table PT (substrate P), and the liquid LQ that flows out may remain on the upper surface 41A of the base member 41.
- the control device CONT constantly emits the detection light La from the light projecting unit 61 of the detection device 60, it can detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41.
- two light projecting units 61 and two light receiving units 62 are arranged side by side in the Y-axis direction. As shown in FIGS. 6 and 3, the detection light La emitted from these light projecting units 61 is
- the substrate table PT is irradiated near the edge portion PTE.
- Liquid LQ flowing out from the substrate table PT Flows out onto the base member 41 from the edge portion PTE of the substrate table PT, so that the detection light La is irradiated near the edge portion PTE of the substrate table PT, so that it flows out of the substrate table PT.
- the liquid LQ to be detected can be detected quickly and satisfactorily.
- the movement stroke may be small.
- the detection light is separated from the edge PTE of the substrate table PT.
- the optical path of the detection light La according to the position where the liquid LQ tends to flow out, such as near the edge portion PTE of the substrate table PT, the flowing out liquid LQ can be detected quickly and satisfactorily.
- the guided member 50 that supports the detection device 60 (the light projecting unit 61 and the light receiving unit 62) is moved relative to the base member 41, and the light projecting unit
- the first guided member 50A that supports 61 and the second guided member 50B that supports the light receiving unit 62 are moving synchronously.
- the control device CONT is supported by the first guided member 50A while synchronously moving the first guided member 50A that supports the light projecting unit 61 and the second guided member 50B that supports the light receiving unit 62.
- the light projecting unit 61 irradiates the detection light La to detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41.
- control device CONT moves the detection device 60 relative to the base member 41, thereby moving the detection light La and the base member 41 relative to each other while the liquid LQ is applied to the upper surface 41A of the base member 41. Therefore, it is possible to detect whether or not the liquid LQ is present in a relatively wide area of the upper surface 41A of the base member 41 using the detection device 60.
- the detection light La is irradiated with the detection light La while moving the detection light La and the base member 41 relatively, whereby the base member 41
- the position of the liquid LQ at can be obtained.
- the guided member 50 and the substrate table PT move almost together in the Y-axis direction, so that the detection device 60 can be provided by measuring the position of the substrate table PT using the laser interferometer 46.
- the position of the guided member 50 can be measured. Therefore, the guided member 50 should not be moved while monitoring the position of the guided member 50 (that is, the position of the detection device 60) using the laser interferometer 46.
- the control device CONT By irradiating the force detection light La, the control device CONT makes the coordinate system defined by the laser interferometer 46 based on the position measurement result of the laser interferometer 46 and the light reception result of the light receiving unit 62 of the detection device 60. The position of the liquid LQ at can be obtained.
- the control device CONT determines, based on the detection result of the detection device 60, that an abnormality such as the liquid LQ flowing out from the substrate table PT has occurred. To do. If it is determined that an abnormality has occurred, the control device CONT, for example, reduces the liquid supply amount per unit time by the liquid supply mechanism 10 or stops the supply of the liquid LQ by the liquid supply mechanism 10. When the supply of the liquid LQ by the liquid supply mechanism 10 is stopped, the driving of the liquid supply unit 11 may be stopped, or the flow path of the supply pipe 13 may be closed using the noble 15. Alternatively, the control device CONT increases the liquid recovery amount per unit time by the liquid recovery mechanism 20 based on the detection result of the detection device 60.
- the control device CONT stops the exposure operation on the substrate P and the movement of the substrate stage PST based on the detection result of the detection device 60.
- the detection device 60 detects whether or not the liquid LQ is present on the base member 41, and controls the exposure operation, the liquid supply / recovery operation, and the like based on the detection result, whereby the base member It is possible to prevent the liquid LQ on 41 from flowing into the floor FD, etc., and increasing the damage.
- the liquid LQ When the liquid LQ is present on the base member 41, the liquid LQ may flow into the air inlet 42A of the air bearing 42. Therefore, when the liquid LQ is detected, the control device CONT The intake operation from the intake port 42A may be stopped. In addition, by setting the optical path of the detection light La in the vicinity of the air bearing 42, the liquid LQ on the base member 41 is detected using the detection light La before it flows into the inlet 42A. By taking an appropriate measure according to the detection result, it is possible to prevent the liquid LQ force flowing on the base member 41 from flowing into the air inlet 42A.
- the control device CONT It is also possible to drive the alarm device K to issue a warning.
- the operator can grasp that an abnormality such as leakage of the liquid LQ has occurred inside the exposure apparatus ⁇ , so that appropriate measures can be taken.
- Alarm device ⁇ can issue an alarm using a warning light, warning sound, display, etc.
- the detection device 60 detects the liquid LQ by moving the detection region (the optical path of the detection light La) of the detection device 60 in accordance with the step-and-scan movement of the substrate ⁇ .
- the guided member 50 is moved in a movement state different from the step movement, and the liquid LQ is applied to the upper surface 41A of the base member 41. It is also possible to detect whether or not there is an error. For example, after the exposure of the first shot area, the guided member 50 is powered longer than the step movement distance, and the detection operation is performed on a relatively wide area of the upper surface 41A of the base member 41. Any configuration is possible when two shot areas are exposed.
- the detection operation by the detection device 60 can be performed before immersion exposure of the substrate P or before supplying the liquid LQ onto the substrate P.
- immersion exposure it is possible to perform immersion exposure processing after confirming that the base member 41 is free of liquid LQ using the detection device 60.
- the controller CONT uses the liquid recovery mechanism 20 or the like to use the liquid LQ on the substrate P or the liquid LQ remaining on the upper surface 43 of the substrate table PT. Collect.
- the control device CONT can detect whether or not the liquid LQ is present on the base member 41 by using the detection device 60.
- the detection device 60 can be arranged so as to correspond to an arbitrary position of the base member 41 by greatly driving the guided member 50.
- the control device CONT carries out (unloads) the exposed substrate P from the substrate stage PST.
- unloading (unloading) board P or loading (loading) board P see Fig. 7.
- the control device CONT moves the guided member 50 largely relative to the base member 41 in order to move the substrate table PT between the exposure position PJ1 and the load / unload position PJ2. Therefore, the liquid LQ can be detected in a relatively wide area on the base member 41 by using the detection device 60 supported by the guided member 50. Then, the exposed substrate P on the substrate table PT moved to the load / unload position PJ2 is transferred to the transport system H.
- the controller CONT loads the unexposed substrate P at the load / unload position P J2 on the substrate table PT and then moves the substrate table PT to the exposure position PJ1 or before loading the unload position PJ2.
- the movable member here, the guided member 50
- the detection device 60 is moved against the base member 41. It may be possible to detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41 by largely moving.
- the detection device 60 that detects whether or not the liquid LQ is present is provided on the upper surface 41A of the base member 41 that guides the movement of the substrate table PT. Appropriate measures such as removing the liquid LQ can be quickly taken. Therefore, the spread of damage caused by the spilled liquid LQ can be prevented, and exposure processing and measurement processing can be performed satisfactorily.
- the detection device 60 capable of detecting the liquid LQ with the guided member 50 that is a movable member
- the members (base member 41) other than the guided member 50 are relatively wide. It is possible to detect whether or not the area has a liquid LQ. Therefore, the spread of damage caused by the spilled liquid LQ can be prevented, and exposure processing and measurement processing can be performed satisfactorily.
- each of the light projecting unit 61 and the light receiving unit 62 is arranged on both sides of the base member 41 with respect to the X-axis direction.
- the position of the liquid LQ in the Y-axis direction on the base member 41 which is a member different from the guided member 50, is detected.
- the light projecting unit 61 and the light receiving unit 62 are also arranged on both sides of the base member 41 with respect to the Y-axis direction, and the light projecting unit 61 and the light receiving unit 62 are arranged with respect to the base member 41.
- the position of the liquid LQ on the base member 41 in the X axis direction can also be detected by emitting the detection light La from the light projecting unit 61 while moving the unit 62 in the X axis direction synchronously.
- the light projecting unit 61 and the light receiving unit 62 are provided two by two, but of course, any plural may be provided, but one by one! /, obviously!
- the detection device 60 detects whether or not the liquid LQ is present on the upper surface 41A of the base member 41. However, the attachment position of the detection device 60 with respect to the guided member 50 is determined as described above. By detecting the liquid LQ on the side surface 41B of the base member 41 as shown in the plan view of FIG. Can do.
- the detection device 60 is attached to the guided member 50, but can be attached to any member constituting the substrate table drive mechanism PSTD.
- a movable member that can move relative to the base member 41 may be provided, and the detection device 60 may be attached to the movable member.
- the light emitting unit 61 and the light receiving unit 62 of the detection device 60 may be provided on the lower surface PTA of the substrate table PT facing the upper surface 41A of the base member 41.
- FIG. 9 the light emitting unit 61 and the light receiving unit 62 of the detection device 60 may be provided on the lower surface PTA of the substrate table PT facing the upper surface 41A of the base member 41.
- the light projecting unit 61 is attached to the ⁇ -side edge region of the lower surface PTA of the substrate table PT, and the light receiving unit 62 is opposed to the light projecting unit 61. It is attached to the edge area on the + Y side.
- the light projecting portion 61 and the light receiving portion 62 of the detection device 60 are provided on an air bearing 42 for supporting the substrate table PT in a non-contact manner with respect to the upper surface 41 A of the base member 41. May be.
- the air bearings 42 are provided at each of a plurality of positions on the lower surface PTA of the substrate table PT, and a light projecting unit 61 is provided on the side surface of the first air bearing among the plurality of air bearings 42.
- a light receiving unit 62 is provided on the side surface of the second air bearing different from the first air bearing so as to face the light projecting unit 61.
- the liquid LQ adheres to the base member 41 having the upper surface 41A that guides the movement of the substrate table PT, and it is detected whether or not the force is strong.
- the liquid LQ adheres to any member other than the base member 41 that composes the exposure apparatus EX. Whether or not the force is present can be detected by using a detection device 60 attached to the movable member. In addition, it is possible to detect whether or not the liquid LQ is present on the surface plate 4 on which the base member 41 is installed or on the floor surface FD by using the detection device 60.
- the detection device 60 for detecting whether or not the base member 41 has the liquid LQ may be attached to a fixing member that does not substantially move with respect to the base member 41.
- the light projecting unit 61 and the light receiving unit 62 of the detection device 60 are attached to the main column 3 so as to face each other with the base member 41 interposed therebetween. Even with such a configuration, it is possible to detect whether or not the liquid LQ is present in the base member 41 using the detection device 60.
- the detection device 60 detects the liquid LQ that forms the liquid immersion area AR2, such as a cooling liquid that cools the linear motor. Liquid other than the liquid LQ that forms the area AR2 may flow out onto the base member 41 or the like. The detection device 60 can also detect such a liquid (cooling liquid or the like).
- the position of the liquid LQ on the base member 41 can also be obtained by two-dimensionally irradiating the plurality of detection lights La in a matrix.
- the detection device 60 is arranged on the + Y side of the base member 41, and is arranged on the Y side of the first emission part 61X that emits a plurality of detection lights La arranged in the X-axis direction, and the base member 41.
- a first light receiving unit 62X disposed at a predetermined position with respect to the detection light La emitted from the first emission unit 61X, A second emission part 61Y that is arranged on the X side of the base member 41 and emits a plurality of detection lights La arranged in the Y-axis direction, and is arranged on the + X side of the base member 41 and emitted from the second emission part 61Y. And a second light receiving unit 62Y disposed at a predetermined position with respect to the detected light La.
- the first light receiving unit 62X includes a plurality of light receiving elements corresponding to the plurality of detection lights La emitted from the first emitting unit 61X.
- the second light receiving unit 62Y includes the second emitting unit 61Y. It has a plurality of light receiving elements corresponding to a plurality of detection lights La emitted more. Each of the detection light La emitted from the first emission part 61X and the detection light La emitted from the second emission part 61Y is irradiated substantially parallel to the upper surface 41A of the base member 41, and the optical path of these detection lights La Are provided in a matrix in plan view.
- the plurality of light reception elements of the first light reception unit 62X Among these, the amount of light received by the light receiving element corresponding to the detection light Lax decreases.
- the detection is performed among the plurality of light reception elements of the second light reception unit 62Y. The amount of light received by the light receiving element corresponding to the light Lay decreases.
- the control device CONT can specify that the position of the liquid LQ is near the intersection of the detection light Lax and the detection light Lay based on the light reception results of the first and second light receiving units 62X and 62Y.
- the controller CONT uses the position information of the light receiving element that has received the detection lights Lax and Lay. Based on this, the position of the liquid LQ on the base member 41 can be obtained.
- the detection device 60 is configured to detect the magnitude of the liquid LQ on the base member 41 based on the light reception result of the light receiving portion 62 when the detection portion La is irradiated with the detection light La from the emission portion 61. (The size of the area covered with liquid LQ).
- the emitting unit 61 irradiates a plurality of detection lights La arranged in the Y-axis direction along the X-axis direction.
- the light receiving unit 62 has a plurality of light receiving elements corresponding to the plurality of detection lights La. The position information of these light receiving elements is divided in advance according to design values and the like.
- the detection device 60 detects the edge LG of the liquid LQ based on the light reception result of the light receiving element of the light receiving unit 62 that has received the detection light Lai and the position information of the light receiving element, and detects the liquid LQ (liquid LQ The size of the area covered with V can be obtained.
- the detection device 65A shown in FIG. 14 has both functions of an emission unit that emits the detection light La and a light receiving unit that receives the light.
- the detecting device 65A is provided on the side surface of the substrate table PT.
- the detecting device 65A irradiates the upper surface 41A of the base member 41 with the detection force La and receives light from the upper surface 41A of the base member 41. Based on the light reception result, it is detected whether or not the liquid LQ is present on the upper surface 41 A of the base member 41.
- the liquid LQ does not exist on the upper surface 41A of the base member 41
- the reflected light of the detection light La irradiated on the upper surface 41A of the base member 41 is received by the detection device 65A with a predetermined light intensity.
- the detection light La irradiated on the upper surface 41A of the base member 41 is scattered or absorbed by the liquid LQ.
- the detection device 65A receives light with a light intensity lower than the light intensity.
- the detection device 65A can detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41 based on the reception result of the reflected light.
- a detection device 65B having the same configuration as the detection device 65A is provided on the lower surface of the X guide stage 44.
- the detection light La emitted from the detection device 65B is irradiated near the side surface 41B of the base member 41.
- the detection light La having also been emitted from the detection device 65B is reflected by the surface plate 4 and received by the detection device 65B with a predetermined light intensity.
- the reflected light is received by the detection device 65B with a light intensity lower than the predetermined light intensity. It is possible to detect whether or not the liquid LQ is present on the side surface 41B of the member 41.
- the substrate table PT supporting the detection device 65A and the X guide stage 44 supporting the detection device 65B can be detected while moving.
- a detection device 65C shown in FIG. 15 has a configuration equivalent to that of the detection device 65A, and is attached to the guided member 50. Then, the detection light La is irradiated from the detection device 65C onto the side surface of the air bearing 42 attached to the lower surface PTA of the substrate table PT.
- a mirror 66C having a reflection surface for reflecting the detection light La is provided on the side surface of the air bearing 42.
- the guided member 50 is provided with a detection device 65D that has the same configuration as the detection device 65A and that irradiates the side surface 41B of the base member 41 with the detection light La.
- the side surface 41B is provided with a mirror 66D having a reflecting surface.
- the detection device 65D can detect with high sensitivity whether or not the liquid LQ is present on the side surface 41B by irradiating the side surface 41B of the base member 41 provided with the mirror 66D with the detection light La.
- a detection device having the same configuration as that of the detection device 65A is attached to the guided member 50, for example, is irradiated with detection light on the side surface of the substrate table PT, and whether or not there is liquid LQ on the side surface of the substrate table PT. It is of course possible to detect this. Even in this case, it is possible to detect with high sensitivity whether or not the liquid LQ is present by providing a reflective surface on the side surface of the substrate table PT.
- the detection device capable of detecting the liquid on the side surface of the substrate table PT can detect the liquid LQ adhering to the side surface of the substrate table PT, and flows out of the substrate table PT. Since the liquid LQ that flows down the side of the liquid can be detected, when the liquid LQ flows out from the substrate table PT, the liquid LQ that has flowed out can be detected quickly using the detection device. Can take quick action.
- FIG. 16 is a diagram showing a state in which a detection device 65F having a configuration equivalent to that of the detection device 65A is provided on the lower surface PTA of the substrate table PT.
- the detection device 65F irradiates the upper surface 41A of the base member 41A with the detection light La.
- the detection device 65F can be provided on the lower surface PTA of the substrate table PT.
- a reflective surface may be provided on the upper surface 41A of the base member 41.
- FIG. 17 is a side view schematically showing another embodiment of the substrate table
- FIG. 18 is a view showing the air bearing 42 in the bearing surface 42S side force.
- the lower surface PTA of the substrate table PT is provided with an air bearing 42 for supporting the substrate table PT in a non-contact manner with respect to the upper surface 41A of the base member 41.
- the bearing surface 42S facing the upper surface 41A of the base member 41 has a blowout port 42B for blowing gas (air) to the upper surface 41A of the base member 41, a bearing surface 42S and a guide.
- An air inlet 42A for sucking gas between the surface 41A is provided.
- the air inlet 42A and the air outlet 42B are provided in a central region 42T of the bearing surface 42S of the air bearing 42.
- the detection device 65A and A detection device 65E having an equivalent configuration is provided in the bearing surface 42S of the air bearing 42.
- the detection device 65E is provided at each of a plurality of predetermined positions of the peripheral region 42E outside the central region 42T so as to surround the central region 42T, and irradiates the upper surface 41A of the base member 41 with the detection light La. At the same time, the reflected light from the upper surface 41A is received.
- the detection device 65E can detect whether or not the liquid LQ is present on the upper surface 41A of the base member 41.
- the bearing surface 42S of the air bearing 42 is provided with a liquid recovery port 26 that can collect the liquid LQ on the upper surface 41A of the base member 41.
- the liquid recovery port 26 is provided in a peripheral region 42E outside the central region 42T provided with the air inlet 42A and the air outlet 42B in the bearing surface 42S, and a plurality of predetermined portions other than the detection device 65E are provided in the peripheral region 42E. Each of the positions is provided so as to surround the central region 42T.
- the liquid recovery port 26 is connected to the second liquid recovery unit 28 via a recovery channel 27.
- the second liquid recovery unit 28 has the same configuration as the liquid recovery unit 21 described above.
- the second liquid recovery mechanism 29 that recovers the liquid LQ on the base member 41 includes a second liquid recovery unit 28, a recovery flow path 24, and a liquid recovery port 26.
- the substrate table PT holding the substrate P and the upper surface 41A of the base member 41 are relatively moved. For example, if the liquid LQ is present on the upper surface 41 A of the base member 41 during exposure of the substrate P, the liquid LQ on the upper surface 41 A is detected by the detection device. Detected at 65E. When the control device CONT determines that the liquid LQ is present on the upper surface 41A of the base member 41 based on the detection result of the detection device 65E, the control device CONT controls the second liquid recovery mechanism 29 via the liquid recovery port 26. The liquid LQ on the upper surface 41A can be recovered.
- the liquid recovery port 26 of the second liquid recovery mechanism 29 is provided in the peripheral region 42E outside the central region 42T having the air inlet 42A, the liquid LQ does not flow into the air inlet 42A.
- the liquid LQ on the upper surface 41A can be recovered through the liquid recovery port 26 while relatively moving the substrate table PT (air bearing 42) and the base member 41. 17 and 18, the liquid LQ on the upper surface 41A of the base member 41 that does not stop the exposure operation on the substrate P even when the liquid LQ is present on the upper surface 41A of the base member 41 can be obtained. Since it can be collected, it is possible to prevent inconveniences such as a reduction in the operating rate of the exposure apparatus EX.
- the exposure operation for the substrate P is stopped and the base member is moved while the substrate table PT (air bearing 42) and the base member 41 are moved relative to each other.
- the liquid LQ on the upper surface 41 A of 41 may be recovered through the liquid recovery port 26.
- the substrate table PT (air bearing 42) and the base member 41 are moved relative to each other while the upper surface 41A of the base member 41 is relatively wide and in a region. You can use the 26 to perform liquid recovery!
- the liquid recovery operation without causing the liquid LQ to remain can be performed more smoothly.
- a liquid repellent treatment for making the base member 41 liquid repellent a liquid repellent material such as polytetrafluoroethylene (Teflon (registered trademark)) or other fluorine-based resin or acrylic resin is applied. Treatment.
- the liquid repellent material may be provided over the entire upper surface 41A and side surface 41B of the base member 41, or may be selectively provided in a part of the area requiring liquid repellency. ,.
- the exposure apparatus EX is configured to include one substrate table PT, but the present invention can also be applied to an exposure apparatus including two tables. This will be described with reference to FIG.
- the exposure apparatus EX2 shown in FIG. 19 is provided at a position aligned with the substrate table PT1 that is movable while holding the substrate P, and the substrate table PT1, and performs various measurement processes when exposing the substrate P on the substrate table PT1. And a measurement table PT2 for carrying out the measurement. Measurement The table PT2 is a table that does not hold the substrate P. On the measurement table PT2, for example, a FIA (field 'image' alignment) type substrate as disclosed in JP-A-4-65603 is used. Measurement marks measured by the alignment system, and measurement marks measured by a VRA (visual “reticle” alignment) method as disclosed in, for example, Japanese Patent Laid-Open No. 7-17 6468 are provided.
- FIA field 'image' alignment
- VRA visual “reticle” alignment
- an uneven illuminance sensor as disclosed in JP-A-57-117238, an irradiation sensor (illuminance sensor as disclosed in JP-A-11-16816), and the like. ) Etc. are also installed.
- various correction processes such as a lens calibration process
- the substrate table PT1 and the measurement table PT2 can be two-dimensionally moved independently of each other on the base member 41 by a stage driving mechanism.
- the position in the XY direction of the substrate table PT1 and the measurement table PT2 is measured by a laser interferometer.
- the liquid immersion area AR2 is formed in the predetermined area AR3 immediately below the projection optical system PL, and the measurement process is performed using the measurement table PT2.
- the projection optical system PL and the measurement table PT2 face each other, and the liquid LQ is filled between the projection optical system PL and the measurement table PT2 to form the liquid immersion area AR2.
- the projection optical system PL and the substrate table PT1 face each other, and the liquid LQ is filled between the projection optical system PL and the substrate table PT1 (substrate P).
- the immersion area AR2 is formed.
- the liquid LQ immersion area AR2 is formed on both the substrate table PT1 and the measurement table PT2.
- the liquid LQ immersion area AR2 is moved between the substrate table PT1 and the measurement table PT2.
- the control device CONT uses the substrate table drive mechanism to measure the substrate table PT1 and the substrate table PT1 within the area including the predetermined area AR3 in the state where the substrate table PT1 and the measurement table PT2 are close to or in contact with each other. Move the table PT2 together and move the immersion area AR2 between the upper surface of the substrate table PT1 and the upper surface of the measurement table PT2.
- the liquid immersion area AR2 can be moved between the substrate table PT1 and the measurement table PT2 while suppressing the outflow of liquid LQ from the gap (gap) between the substrate table PT1 and the measurement table PT2. it can.
- the light projecting unit 61 of the detection device 60 irradiates the region corresponding to the predetermined region AR3 on the base member 41 with the detection light La.
- the light projecting unit 61 is attached to a fixing member such as the main column 3, for example.
- the light receiving unit 62 corresponding to the light projecting unit 61 is attached to a predetermined position such as the main column 3 facing the light projecting unit 61 with the base member 41 interposed therebetween.
- the bearing surface 42S of the air bearing 42 provided on the substrate table PT1 and the bearing surface 42S of the air bearing 42 provided on the measurement table PT2 are respectively shown in FIG.
- the detection device 65E described with reference to 18 is provided.
- the control device CONT moves the measurement table PT2 and the base member 41 relative to each other, Whether or not the liquid LQ is present on the base member 41 can be detected by using the detection device 65E provided on the air bearing 42 of the measurement table PT2.
- the operating rate of the exposure apparatus EX can be improved.
- the present invention is a twin-stage type equipped with two substrate stages disclosed in JP-A-10-163099, JP-A-10-214783, JP-T2000-505958, and the like. It can also be applied to an exposure apparatus. Even in a twin-stage type exposure apparatus, the immersion area AR2 can be moved between two stages while the two stages are close to or in contact with each other. Further, as described above, the present invention can also be applied to an exposure apparatus provided with a substrate stage and a measurement stage as disclosed in JP-A-11-135400.
- the liquid LQ that has flowed out from the substrate table PT is detected using the detection light La, but the liquid LQ can also be detected by other methods.
- liquid LQ can be detected using an optical fiber. This will be described with reference to FIGS. 20 and 21.
- FIG. FIG. 20 is a plan view of the substrate table PT in which the upward force is also seen, and FIG.
- an optical fiber 90 for detecting liquid LQ is a so-called cladless fiber, and no clad portion is provided around a core portion that propagates light.
- the core portion of the optical fiber 90 has a higher refractive index than the surrounding gas (air in the present embodiment) and a refractive index lower than that of the liquid (pure water in the present embodiment) LQ. Therefore, when the periphery of the optical fiber 90 is filled with air, the light is confined and propagated in the core portion having a higher refractive index than air. That is, the light incident from the incident end 91 of the optical fiber 90 is emitted from the emission end 92 without greatly reducing the amount of light.
- the optical fiber 90 is provided along the peripheral edge of the upper surface of the X guide stage 44.
- An incident end 91 of the optical fiber 90 is connected to a light projecting unit 93A that can enter light into the optical fiber 90.
- the light projecting unit 93A has a predetermined light intensity with respect to the incident end 91 of the optical fiber 90. The light is emitted.
- a light receiving portion 93B capable of receiving light that propagates through the optical fiber 90 and exits from the exit end 92 is connected to the exit end 92 of the optical fiber 90.
- the control device CONT has an emission end for the incident end 91 of the optical fiber 90 based on the amount of light incident on the optical fiber 90 from the light projecting unit 93A and the amount of light received by the light receiving unit 93B.
- the light attenuation rate of the unit 92 is obtained, and based on the obtained result, whether the liquid LQ has adhered to the optical fiber 90, that is, from the substrate table PT to the X guide stage 44. It is determined whether or not the liquid LQ has flowed out. When it is determined that the liquid LQ has leaked, the control device CONT takes appropriate measures such as stopping the liquid supply operation by the liquid supply mechanism 10.
- the X guide stage 44 is provided with a stator 47A of an X linear motor 47.
- the stator 47A has, for example, a coil unit and a housing portion surrounding the coil unit. Yes.
- the surface of the X guide stage 44 (here, the surface of the housing portion of the stator 47A) has an inclined region 44S that is inclined so that the central force is also lowered toward the peripheral edge. ing.
- the optical fiber 90 is disposed at the lowest position in the inclined region 44S. Therefore, the liquid LQ that has flowed out from the substrate table PT onto the X guide stage 44 moves to the lower portion of the inclined region 44S by the gravitational action. Therefore, the optical fiber 90 disposed under the inclined region 44S can reliably detect the liquid LQ that has flowed out.
- a recovery pipe 93 may be provided.
- a plurality of recovery holes 92 are provided at predetermined intervals on the wall of the recovery pipe 93.
- the inside of the collection pipe 93 is maintained at a negative pressure, and the liquid LQ that has flowed out onto the X guide stage 44 flows into the collection pipe 93 through the collection hole 92 and is collected.
- the surface of the X guide stage 44 (here, the surface of the housing portion of the stator 47A) is an inclined region 44S inclined so as to be lowered from the peripheral portion toward the center portion. , May be used.
- the optical fiber 90 is disposed at the lowest position in the inclined region 44S ′. Therefore, the liquid LQ that has flowed out from the substrate table PT onto the X guide stage 44 moves to the lower part of the inclined region 44S ′ by the gravitational action. Therefore, the optical fiber 90 disposed below the inclined region 44S ′ can reliably detect the liquid LQ that has flowed out.
- a recovery tube 93 having a hole 92 may be provided. It is also possible to adopt a detection method using an image sensor with the liquid LQ as the detection method. For example, an image sensor is arranged on the guided member 50 and the output of the image sensor is subjected to image processing. The liquid LQ remaining on the upper surface 41a of the base member 41 may be detected by displaying on the monitor.
- the liquid LQ in the present embodiment is composed of pure water.
- Pure water has the advantage that it can be easily obtained in large quantities at semiconductor manufacturing factories and the like, and has no adverse effect on the photoresist, optical elements (lenses), etc. on the substrate P.
- pure water has no adverse effects on the environment and the content of impurities is extremely low, so it is expected to clean the surface of the substrate P and the surface of the optical element provided on the front end surface of the projection optical system PL. it can.
- the exposure apparatus may have an ultrapure water maker.
- the refractive index n of pure water (water) for exposure light EL with a wavelength of about 193 nm is said to be approximately 1. 44, and ArF excimer laser light (wavelength 193 nm) is used as the light source for exposure light EL.
- lZn that is, the wavelength is shortened to about 134 nm to obtain a high resolution.
- the projection optical system PL can be used if it is sufficient to ensure the same depth of focus as in the air.
- the numerical aperture can be increased further, and the resolution is improved in this respect as well.
- the numerical aperture NA of the projection optical system may be 0.9 to 1.3. In this way, when the numerical aperture NA of the projection optical system becomes large, it has been used as exposure light from the past! Because random polarization light, the imaging performance may be deteriorated due to the polarization effect. It is desirable to use polarized illumination. In that case, linearly polarized illumination is performed in line with the longitudinal direction of the line pattern of the mask 'reticle' line 'and' space pattern. From the mask (reticle) pattern, the S-polarized component (TE-polarized component), that is, It is preferable to emit a large amount of diffracted light having a polarization direction component along the longitudinal direction of the line pattern.
- TE-polarized component From the mask (reticle) pattern, the S-polarized component (TE-polarized component), that is, It is preferable to emit a large amount of diffracted light having a polarization direction component along the longitudinal direction of the line pattern.
- the space between the projection optical system PL and the resist coated on the surface of the substrate P is filled with liquid
- the space between the projection optical system PL and the resist coated on the surface of the substrate P is filled with air (gas).
- the numerical aperture NA of the projection optical system is 1.0. Even in such a case, high imaging performance can be obtained.
- the phase shift mask is a line pattern as disclosed in Japanese Patent Laid-Open No. 6-188169. It is more effective to combine the oblique incidence illumination method (especially the dipole illumination method) etc. according to the longitudinal direction of the turn.
- the combination of the linear polarization illumination method and the dipole illumination method is used when the periodic direction of the line 'and' space pattern is limited to a predetermined direction V, or the hole pattern is formed along the predetermined direction. It is effective when there is a crowd. For example, when a halftone phase shift mask with a transmittance of 6% (a pattern with a noise pitch of about 45 nm) is illuminated using both the linear polarization illumination method and the dipole illumination method, the dipole is illuminated on the pupil plane of the illumination system.
- the depth of focus (DOF) can be increased by about 150 nm.
- a fine line-and-space pattern for example, a line-and-space of about 25 to 50 nm
- the mask M acts as a polarizing plate due to the wave guide effect, and the P-polarized component reduces the contrast.
- the diffracted light of the S-polarized component (TE-polarized component) is larger than the diffracted light of the (TM-polarized component), and the mask M force is also emitted.
- the numerical aperture NA of the projection optical system PL is as large as 0.9 to 1.3.
- high resolution performance can be obtained.
- the diffracted light of the S-polarized component (TE-polarized component) is emitted by the mask M force more than the diffracted light of the P-polarized component (TM-polarized component), so the aperture of the projection optical system PL High resolution performance is obtained even when the number NA is as large as 0.9 to 1.3. It can be done.
- a projection optical system can be obtained by using both the polarization illumination method that linearly polarizes in the tangential direction of the circle centered on the optical axis and the annular illumination method. High imaging performance can be obtained even when the numerical aperture NA is large.
- a polarization illumination method and an annular illumination method in which a half-tone phase shift mask with a transmittance of 6% (a pattern with a noise pitch of about 63 nm) is linearly polarized in the tangential direction of a circle centered on the optical axis
- the depth of focus (DOF) is 250 nm rather than using randomly polarized light.
- progressive focus exposure methods disclosed in, for example, JP-A-4-277612 and JP-A-2001-345245, and multiple wavelengths (for example, two wavelengths) can be used. It is also effective to apply a multi-wavelength exposure method that uses exposure light to obtain the same effect as the progressive focus exposure method.
- the optical element 2 is attached to the tip of the projection optical system PL, and the optical characteristics of the projection optical system PL, for example, aberration (spherical aberration, coma aberration, etc.) are adjusted by this lens. be able to.
- the optical element attached to the tip of the projection optical system PL may be an optical plate used for adjusting the optical characteristics of the projection optical system PL. Alternatively, it may be a plane parallel plate that can transmit the exposure light EL.
- the exposure apparatus to which the above-described immersion method is applied is configured to expose the substrate P by filling the optical path space on the emission side of the optical element 2 of the projection optical system PL with liquid (pure water). As disclosed in WO 2004Z019128 !, the optical path space on the incident side of the optical element 2 of the projection optical system PL is also liquid (pure water). ) May be satisfied.
- the space between the projection optical system PL and the surface of the substrate P is filled with the liquid LQ.
- a cover glass having parallel plane plate force is attached to the surface of the substrate P. It may be configured to fill liquid LQ in a wet state.
- liquid LQ of the present embodiment may be a liquid other than force water that is water, for example,
- the light source of exposure light EL is F laser
- this F laser light does not transmit water
- liquid LQ for example, perfluorinated polyether (PFPE) and F laser light can be transmitted.
- PFPE perfluorinated polyether
- F laser light can be transmitted.
- the part that comes into contact with the liquid LQ may be a fluorine-based fluid such as fluorine-based oil.
- the part that comes into contact with the liquid LQ for example, has a small polarity including fluorine!
- the film is made lyophilic by forming a thin film with a molecular structure.
- the liquid LQ is stable to the projection optical system PL that is transmissive to the exposure light EL and has a refractive index as high as possible, and to the photoresist applied to the surface of the substrate P (for example, Cedar). Oil) can also be used.
- the surface treatment is performed according to the polarity of the liquid LQ used.
- the substrate P in each of the above embodiments is not limited to a semiconductor wafer for manufacturing a semiconductor device, but also a glass substrate for a display device, a ceramic wafer for a thin film magnetic head, or a mask used in an exposure apparatus.
- Reticle masters synthetic quartz, silicon wafers are applied.
- an exposure apparatus EX in addition to a step-and-scan type scanning exposure apparatus (scanning stepper) that performs mask exposure by moving the mask M and the substrate P in synchronization with each other, a mask is used.
- the present invention can also be applied to a step-and-repeat projection exposure apparatus (steno) in which the pattern of the mask M is collectively exposed while M and the substrate P are stationary, and the substrate P is sequentially moved stepwise.
- a reduced image of the first pattern is projected in a state where the first pattern and the substrate P are substantially stationary (for example, a refraction type including a reflective element at a 1Z8 reduction magnification). It can also be applied to an exposure apparatus that uses a projection optical system) to perform batch exposure on the substrate P. This In this case, after that, with the second pattern and the substrate P almost stationary, a reduced image of the second pattern is collectively exposed onto the substrate P by partially overlapping the first pattern using the projection optical system. It can also be applied to a stitch type batch exposure apparatus.
- the stitch type exposure apparatus can also be applied to a step 'and' stitch type exposure apparatus in which at least two patterns are partially overlapped and transferred on the substrate P, and the substrate P is sequentially moved.
- a light-transmitting mask reticle
- a predetermined light-shielding pattern or phase pattern 'dimming pattern
- an electronic mask that forms a transmission pattern, a reflection pattern, or a light emission pattern based on electronic data of a pattern to be exposed may be used. Good.
- an exposure apparatus (lithography system) that forms a line 'and' space pattern on the wafer W by forming interference fringes on the wafer W is also used.
- the invention can be applied.
- an exposure apparatus that locally fills the liquid between the projection optical system PL and the substrate P is employed.
- the present invention provides the entire surface of the substrate to be exposed.
- the present invention is also applicable to an immersion exposure apparatus that is covered with a liquid.
- the structure and exposure operation of an immersion exposure apparatus in which the entire surface of a substrate to be exposed is covered with a liquid are disclosed in, for example, JP-A-6-124873, JP-A-10-303114, US Pat. No. 5,825,043. It is described in.
- the type of exposure apparatus EX is not limited to an exposure apparatus for manufacturing a semiconductor element that exposes a semiconductor element pattern onto a substrate P, but an exposure apparatus for manufacturing a liquid crystal display element or a display, a thin film magnetic head, It can be widely applied to an exposure device for manufacturing an imaging device (CCD) or a reticle or mask.
- CCD imaging device
- each stage PST, MST may be a type that moves along the guide or a guideless type that does not have a guide.
- the drive mechanism of each stage PST and MST is such that each magnet PST and MST is made by an electromagnetic force with a magnet mute with two-dimensionally arranged magnets facing an armature unit with two-dimensionally arranged coils. You may use the plane motor which drives. In this case, either one of the magnet unit or armature unit is connected to the stage PST or MST, and the other of the magnet unit or armature unit is provided on the moving surface side of the stage PST or MST!
- the exposure apparatus EX of the present embodiment has various mechanical subsystems including the respective constituent elements recited in the claims of the present application with predetermined mechanical accuracy, electrical accuracy, and optical accuracy. Manufactured by assembling to keep. In order to ensure these various accuracies, before and after this assembly, various optical systems are adjusted to achieve optical accuracy, various mechanical systems are adjusted to achieve mechanical accuracy, various electrical systems Adjustments are made to achieve electrical accuracy.
- Various subsystem powers The assembly process to the exposure equipment includes mechanical connections, electrical circuit wiring connections, and pneumatic circuit piping connections between the various subsystems. Needless to say, there is an assembly process for each subsystem before the assembly process to the exposure apparatus. When the assembly process of the various subsystems to the exposure apparatus is completed, comprehensive adjustment is performed to ensure various accuracies as the entire exposure apparatus. It is desirable to manufacture the exposure apparatus in a clean room where the temperature and cleanliness are controlled.
- a microdevice such as a semiconductor device includes a step 201 for designing the function and performance of the microdevice, a step 202 for producing a mask (reticle) based on the design step, Step 203 for manufacturing a substrate as a base material, substrate processing step 204 for exposing a mask pattern onto the substrate by the exposure apparatus EX of the above-described embodiment, device assembly step (including dicing process, bonding process, and packaging process) 205 It is manufactured through inspection step 206 and the like.
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- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
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Abstract
Description
Claims
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
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JP2006529038A JP4894515B2 (ja) | 2004-07-12 | 2005-07-11 | 露光装置、デバイス製造方法、及び液体検出方法 |
KR1020117031301A KR101342330B1 (ko) | 2004-07-12 | 2005-07-11 | 노광 장치 및 디바이스 제조 방법 |
EP05758280A EP1780772B1 (en) | 2004-07-12 | 2005-07-11 | Exposure equipment and device manufacturing method |
KR1020127018943A KR101433491B1 (ko) | 2004-07-12 | 2005-07-11 | 노광 장치 및 디바이스 제조 방법 |
AT05758280T ATE441937T1 (de) | 2004-07-12 | 2005-07-11 | Belichtungsgerät und bauelemente- herstellungsverfahren |
DE602005016429T DE602005016429D1 (de) | 2004-07-12 | 2005-07-11 | Hren |
KR1020067027717A KR101202230B1 (ko) | 2004-07-12 | 2005-07-11 | 노광 장치 및 디바이스 제조 방법 |
US11/632,070 US8384874B2 (en) | 2004-07-12 | 2005-07-11 | Immersion exposure apparatus and device manufacturing method to detect if liquid on base member |
US13/742,743 US9250537B2 (en) | 2004-07-12 | 2013-01-16 | Immersion exposure apparatus and method with detection of liquid on members of the apparatus |
US14/984,558 US20160109810A1 (en) | 2004-07-12 | 2015-12-30 | Immersion exposure apparatus and method with detection of liquid on members of the apparatus |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2004-205009 | 2004-07-12 | ||
JP2004205009 | 2004-07-12 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US11/632,070 A-371-Of-International US8384874B2 (en) | 2004-07-12 | 2005-07-11 | Immersion exposure apparatus and device manufacturing method to detect if liquid on base member |
US13/742,743 Division US9250537B2 (en) | 2004-07-12 | 2013-01-16 | Immersion exposure apparatus and method with detection of liquid on members of the apparatus |
Publications (1)
Publication Number | Publication Date |
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WO2006006565A1 true WO2006006565A1 (ja) | 2006-01-19 |
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PCT/JP2005/012776 WO2006006565A1 (ja) | 2004-07-12 | 2005-07-11 | 露光装置及びデバイス製造方法 |
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US (3) | US8384874B2 (ja) |
EP (1) | EP1780772B1 (ja) |
JP (4) | JP4894515B2 (ja) |
KR (3) | KR101433491B1 (ja) |
AT (1) | ATE441937T1 (ja) |
DE (1) | DE602005016429D1 (ja) |
WO (1) | WO2006006565A1 (ja) |
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EP3685952B1 (en) | 2011-01-27 | 2021-10-13 | NIPPON STEEL Stainless Steel Corporation | Alloying element-saving hot rolled duplex stainless steel material, and production method for same |
JP6076148B2 (ja) * | 2013-03-12 | 2017-02-08 | 株式会社ディスコ | 検出装置 |
US10649347B2 (en) | 2013-10-29 | 2020-05-12 | Asml Netherlands B.V. | Lithographic apparatus and device manufacturing method |
JP6449875B2 (ja) | 2013-10-29 | 2019-01-09 | エーエスエムエル ネザーランズ ビー.ブイ. | リソグラフィ装置及びデバイス製造方法 |
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- 2005-07-11 JP JP2006529038A patent/JP4894515B2/ja not_active Expired - Fee Related
- 2005-07-11 AT AT05758280T patent/ATE441937T1/de not_active IP Right Cessation
- 2005-07-11 KR KR1020127018943A patent/KR101433491B1/ko active IP Right Grant
- 2005-07-11 WO PCT/JP2005/012776 patent/WO2006006565A1/ja not_active Application Discontinuation
- 2005-07-11 KR KR1020067027717A patent/KR101202230B1/ko active IP Right Grant
- 2005-07-11 EP EP05758280A patent/EP1780772B1/en not_active Revoked
- 2005-07-11 KR KR1020117031301A patent/KR101342330B1/ko active IP Right Grant
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Also Published As
Publication number | Publication date |
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JP2011044735A (ja) | 2011-03-03 |
EP1780772A4 (en) | 2008-02-27 |
US9250537B2 (en) | 2016-02-02 |
JPWO2006006565A1 (ja) | 2008-04-24 |
US8384874B2 (en) | 2013-02-26 |
KR20120087196A (ko) | 2012-08-06 |
KR101433491B1 (ko) | 2014-08-22 |
JP5541252B2 (ja) | 2014-07-09 |
JP5541104B2 (ja) | 2014-07-09 |
DE602005016429D1 (de) | 2009-10-15 |
EP1780772A1 (en) | 2007-05-02 |
JP2012009897A (ja) | 2012-01-12 |
US20070182945A1 (en) | 2007-08-09 |
KR20070030242A (ko) | 2007-03-15 |
KR101342330B1 (ko) | 2013-12-16 |
EP1780772B1 (en) | 2009-09-02 |
US20130128245A1 (en) | 2013-05-23 |
KR20120005567A (ko) | 2012-01-16 |
JP2012142607A (ja) | 2012-07-26 |
KR101202230B1 (ko) | 2012-11-16 |
JP4894515B2 (ja) | 2012-03-14 |
ATE441937T1 (de) | 2009-09-15 |
US20160109810A1 (en) | 2016-04-21 |
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