WO2013150677A1 - 搬送装置、及び電子デバイス形成方法 - Google Patents
搬送装置、及び電子デバイス形成方法 Download PDFInfo
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- WO2013150677A1 WO2013150677A1 PCT/JP2012/078378 JP2012078378W WO2013150677A1 WO 2013150677 A1 WO2013150677 A1 WO 2013150677A1 JP 2012078378 W JP2012078378 W JP 2012078378W WO 2013150677 A1 WO2013150677 A1 WO 2013150677A1
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- Prior art keywords
- substrate
- support member
- unit
- transport
- roller
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/06—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for fragile sheets, e.g. glass
- B65G49/063—Transporting devices for sheet glass
- B65G49/064—Transporting devices for sheet glass in a horizontal position
- B65G49/065—Transporting devices for sheet glass in a horizontal position supported partially or completely on fluid cushions, e.g. a gas cushion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G51/00—Conveying articles through pipes or tubes by fluid flow or pressure; Conveying articles over a flat surface, e.g. the base of a trough, by jets located in the surface
- B65G51/02—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases
- B65G51/03—Directly conveying the articles, e.g. slips, sheets, stockings, containers or workpieces, by flowing gases over a flat surface or in troughs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
- B65G2201/02—Articles
- B65G2201/0214—Articles of special size, shape or weigh
- B65G2201/022—Flat
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
- B65G2249/04—Arrangements of vacuum systems or suction cups
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2812/00—Indexing codes relating to the kind or type of conveyors
- B65G2812/16—Pneumatic conveyors
Definitions
- the present invention relates to a transport apparatus.
- This application claims priority based on Japanese Patent Application No. 2012-084819 filed on April 3, 2012, the contents of which are incorporated herein by reference.
- display elements constituting display devices such as display devices, for example, liquid crystal display elements, organic electroluminescence (organic EL) elements, electrophoretic elements used in electronic paper, and the like are known.
- a method called a roll-to-roll method (hereinafter simply referred to as “roll method”) is known (for example, , See Patent Document 1).
- a single sheet-like substrate wound around a substrate supply side roller is sent out, and the substrate is transported while being wound up by a substrate recovery side roller, and then wound after the substrate is sent out.
- This is a technique in which a pattern for an electronic device (display pixel circuit, driver circuit, wiring, etc.) is sequentially formed on a substrate until it is taken.
- processing apparatuses that form highly accurate patterns have been proposed.
- a transport apparatus that transports a substrate has a support surface that supports one surface of the substrate, and a plurality of through holes that pass through the support surface and the back surface of the support surface are formed.
- the gas suction portion disposed opposite to the first region including the plurality of holes, and the second region different from the first region of the back surface of the support member.
- a gas supply section disposed opposite to the support member, and supplying and sucking gas to and from the back surface of the support member, thereby holding the back surface of the support member in a non-contact state and via a plurality of through holes.
- a transfer device including a holding mechanism for adsorbing a substrate to a support surface.
- a method for forming an electronic device on the surface of a long flexible substrate which is made into a thin plate shape with a material having higher rigidity than the substrate.
- the substrate is placed on the surface of the support member in which a plurality of through holes penetrating the substrate is formed, and the gas suction portion disposed opposite to the first region including the plurality of through holes is provided on the back surface of the support member.
- the substrate By adsorbing the substrate to the surface of the support member through the plurality of through holes, and by the gas supply unit arranged facing the second region different from the first region among the back surface of the support member, The back surface is supported by the gas layer, the substrate is adsorbed on the surface of the support member, and the back surface of the support member is supported by the gas layer.
- the electronic device forming method comprising the capital is provided.
- an electronic device forming method capable of forming a high-precision and high-definition electronic device on a substrate by maintaining and transporting the substrate in a certain state. can do.
- FIG. 1 is a schematic diagram showing a configuration of a substrate processing apparatus 100 according to an embodiment of the present invention.
- a substrate processing apparatus 100 includes a substrate supply unit 2 that supplies a substrate (for example, a strip-shaped film member) S formed in a strip shape (long shape), and a surface of the substrate S (surface to be processed). )
- a substrate processing unit 3 that processes Sa
- a substrate recovery unit 4 that recovers the substrate S
- a control unit (control device) CONT that controls these units.
- the substrate processing unit (pattern forming apparatus) 3 executes various processes on the surface of the substrate S from when the substrate S is sent out from the substrate supply unit 2 to when the substrate S is recovered by the substrate recovery unit 4. .
- the substrate processing apparatus 100 can be used when an active matrix type display panel (electronic device) such as an organic EL element or a liquid crystal display element is formed on a substrate S.
- an XYZ coordinate system is set as shown in FIG. 1, and the following description will be given using this XYZ coordinate system as appropriate.
- the X axis and the Y axis are set along the horizontal plane, and the Z axis is set upward along the vertical direction.
- the substrate processing apparatus 100 transports the substrate S from the minus side ( ⁇ X axis side) to the plus side (+ X axis side) along the X axis as a whole. In that case, the width direction (short direction) of the strip
- the substrate S to be processed in the substrate processing apparatus 100 for example, a foil such as a resin film or stainless steel can be used.
- the resin film is made of polyethylene resin, polypropylene resin, polyester resin, ethylene vinyl copolymer resin, polyvinyl chloride resin, cellulose resin, polyamide resin, polyimide resin, polycarbonate resin, polystyrene resin, vinyl acetate resin, etc. Can be used.
- the substrate S preferably has a smaller coefficient of thermal expansion so that the dimensions do not change even when subjected to heat of about 200 ° C., for example.
- an inorganic filler can be mixed with a resin film to reduce the thermal expansion coefficient.
- the inorganic filler include titanium oxide, zinc oxide, alumina, silicon oxide and the like.
- the substrate S may be a single piece of ultrathin glass having a thickness of about 100 ⁇ m manufactured by a float process or the like, or a laminate in which the resin film or aluminum foil is bonded to the ultrathin glass.
- the dimension in the width direction (short direction) of the substrate S is, for example, about 1 m to 2 m, and the dimension in the length direction (long direction) is, for example, 10 m or more.
- this dimension is only an example and is not limited thereto.
- the dimension of the substrate S in the Y-axis direction may be 1 m or less, 50 cm or less, or 2 m or more.
- the dimension of the substrate S in the X-axis direction may be 10 m or less.
- the substrate S is formed to have flexibility.
- flexibility refers to the property that the substrate can be bent without being broken or broken even if a force of its own weight is applied to the substrate.
- flexibility includes a property of bending by a force of about its own weight. Further, the flexibility varies depending on the material, size, thickness, or environment such as temperature of the substrate.
- a single strip-shaped substrate may be used, but a configuration in which a plurality of unit substrates are connected and formed in a strip shape may be used.
- the substrate supply unit 2 supplies and supplies the substrate S wound in a roll shape to the substrate processing unit 3, for example.
- the substrate supply unit 2 is provided with a shaft around which the substrate S is wound, a rotation drive device that rotates the shaft, and the like.
- a configuration in which a cover portion that covers the substrate S wound in a roll shape or the like may be provided.
- the substrate supply unit 2 is not limited to a mechanism that sends out the substrate S wound in a roll shape, and includes a mechanism (for example, a nip type driving roller) that sequentially sends the belt-like substrate S in the length direction. I just need it.
- the substrate collection unit 4 collects the substrate S that has passed through the substrate processing apparatus 100, for example, in a roll shape. Similar to the substrate supply unit 2, the substrate recovery unit 4 is provided with a shaft for winding the substrate S, a rotational drive source for rotating the shaft, a cover for covering the recovered substrate S, and the like. In addition, when the substrate S is cut into a panel shape in the substrate processing unit 3, the substrate S is collected in a state different from the state wound in a roll shape, for example, the substrate S is collected in a stacked state. It does not matter.
- the substrate processing unit 3 transports the substrate S supplied from the substrate supply unit 2 to the substrate recovery unit 4 and processes the surface Sa of the substrate S during the transport process.
- the substrate processing unit 3 includes a processing apparatus 10 and a transfer apparatus 20.
- the processing apparatus 10 has various apparatuses for forming, for example, an organic EL element on the surface Sa to be processed of the substrate S.
- Examples of such an apparatus include a partition forming apparatus for forming a partition on the surface Sa, an electrode forming apparatus for forming an electrode, and a light emitting layer forming apparatus for forming a light emitting layer.
- a droplet coating apparatus for example, an ink jet type coating apparatus
- a film forming apparatus for example, a plating apparatus, a vapor deposition apparatus, a sputtering apparatus, etc.
- an exposure apparatus for example, a developing apparatus, a surface modifying apparatus, a cleaning apparatus, etc.
- Each of these apparatuses is appropriately provided along the transport path of the substrate S.
- the transport device 20 includes a plurality of guide rollers (a transport mechanism, only two rollers 5 and 6 are illustrated in FIG. 1) for guiding the substrate S in the substrate processing unit 3 and a substrate support mechanism (holding) that supports the substrate S. Mechanism) 30.
- the guide roller 5 (transport mechanism) is disposed on the upstream side of the processing apparatus 10 with respect to the transport path of the substrate S
- the guide roller (transport mechanism) 6 is disposed on the downstream side of the processing apparatus 10 with respect to the transport path of the substrate S.
- a rotation drive mechanism (not shown) is attached to at least some of the plurality of guide rollers (conveyance mechanisms).
- the length of the transport path of the substrate S in the transport device 20 is, for example, about a total length of several hundred meters.
- FIG. 2 is a diagram illustrating a partial configuration of the transport device 20.
- the transport device 20 includes a guide roller 5 (see FIG. 1), nip rollers (transport mechanism) R ⁇ b> 1 and R ⁇ b> 2, and a substrate cleaning unit 21 in order from the upstream side in the transport direction of the long substrate S. , Tension adjusting roller (conveying mechanism) R3, static electricity removing unit (removing device) 22, substrate support mechanism 30, static electricity removing unit (removing device) 23, substrate suction roller (conveying mechanism) R4, nip roller (conveying mechanism) R5, and It has R6 and the guide roller 6 (refer FIG. 1).
- the guide roller 5, the nip rollers R1 and R2, the tension adjusting roller R3, the substrate suction roller R4, the nip rollers R5 and R6, and the guide roller 6 are provided along the transport path of the substrate S. It is the structure contained in a guide roller.
- the central axes of the rollers R1 to R6 are arranged parallel to each other in the Y-axis direction.
- the nip rollers R1 and R2 rotate while sandwiching the substrate S conveyed through the guide roller 5 in FIG. 1, and send the substrate S to the downstream side (+ Z axis side) in the conveyance direction.
- vibration transmitted from the upstream side of the nip rollers R1 and R2 through the substrate S can be suppressed.
- the tension adjusting roller R3 rotates while adjusting the tension in the short direction (width direction) of the substrate S, and sends the substrate S to the downstream side in the transport direction.
- the tension adjusting roller R3 is formed, for example, such that the diameter gradually decreases from both end portions in the central axis direction toward the central portion.
- the length of the substrate S in the short direction is adjusted by the tension adjusting roller R3.
- the tension adjusting roller R3 converts the transport direction of the substrate S transported in the + Z-axis direction to the + X-axis direction.
- the substrate suction roller R4 is formed of a porous material through which gas can pass.
- the outer peripheral surface of the substrate suction roller R4 functions as a guide surface R4a that guides the back surface of the substrate S.
- the substrate suction roller R4 has a suction unit 25 that sucks gas from the guide surface R4a to the inside of the roller.
- the suction part 25 has a suction path 25b connected to the inside of the substrate suction roller R4.
- a suction pump 25a is provided in the suction path 25b. By the suction operation of the suction pump 25a, the pressure inside the substrate suction roller R4 is reduced, and thereby the gas around the substrate suction roller R4 is sucked into the inside from the guide surface R4a.
- the substrate suction roller R4 can suck, for example, the substrate S on the guide surface R4a by this suction force.
- the substrate suction roller R4 has a drive unit 26.
- the drive unit 26 rotates the substrate suction roller R4 under the control of the control unit CONT.
- the control unit CONT can control the timing of driving by the driving unit 26, the driving force, and the like.
- the substrate suction roller R4 can transport the substrate S to the + X-axis side by rotating clockwise in the drawing while the substrate S is attracted to the guide surface R4a.
- the substrate suction roller R4 functions as a tension applying mechanism that applies a predetermined tension to the substrate S by operating the suction unit 25 and the driving unit 26.
- the tension applied to the substrate S can be adjusted by the control unit CONT adjusting the driving force of the driving unit 26. Therefore, the substrate suction roller (first roller) R4, the suction unit 25, the drive unit 26, and the control unit CONT function as an adjustment unit that adjusts the tension applied to the substrate S.
- the nip rollers R5 and R6 rotate while sandwiching the substrate S transported through the substrate suction roller R4, and send the substrate S to the downstream side in the transport direction.
- vibrations transmitted through the substrate S from the downstream side of the nip rollers R5 and R6 can be suppressed.
- the substrate suction roller R4 and the nip rollers R5 and R6 transport the substrate S so that a portion of the substrate S between the substrate suction roller R4 and the nip rollers R5 and R6 is in a loose state.
- the nip rollers (second rollers) R5 and R6 function as part of an adjustment unit that adjusts the tension applied to the substrate S.
- the substrate cleaning unit 21 is provided at a position between the nip rollers R1 and R2 and the tension adjusting roller R3.
- the substrate cleaning unit 21 includes, for example, an ultrasonic generator and a suction device (not shown).
- the substrate cleaning unit 21 can remove foreign matter on the substrate S from the processing surface Sa of the substrate S conveyed from the nip rollers R1 and R2 to the tension adjusting roller R3 with a dry cleaner or the like using ultrasonic waves. Is possible.
- a cleaning device having a liquid spraying and drying function can be used as the substrate cleaning unit 21, a cleaning device having a liquid spraying and drying function can be used.
- the static electricity removing unit 22 is provided on the downstream side of the tension adjustment roller R3 in the transport direction of the substrate S, for example, between the tension adjustment roller R3 and the substrate support mechanism 30, and above the substrate S.
- the static electricity removing unit 22 removes static electricity (charge) charged on the substrate S transported to the substrate support mechanism 30.
- the static electricity removing unit 23 is provided on the upstream side of the substrate suction roller R4, for example, between the substrate support mechanism 30 and the substrate suction roller R4 and above the substrate S.
- the static electricity removing unit 23 removes static electricity (charge) charged on the substrate S conveyed downstream from the substrate support mechanism 30.
- the substrate support mechanism 30 is disposed between the tension adjustment roller R3 and the substrate suction roller R4.
- a processing region 10p by the processing apparatus 10 is set in a portion of the substrate S between the tension adjusting roller R3 and the substrate suction roller R4.
- the substrate support mechanism 30 supports the portion of the substrate S that passes through the processing region 10p, and at a speed synchronized with the transport speed of the substrate S between the tension adjusting roller R3 and the substrate suction roller R4. Support the back side.
- the substrate support mechanism 30 includes a belt part (support member) 31, a belt transport part 32, and a guide stage 33.
- the substrate support mechanism 30 includes a belt cleaning unit 37 that cleans the surface of the belt unit 31, and a static electricity removing unit 38 that removes static electricity charged in the belt unit 31.
- the belt portion 31 is formed in an endless shape using a member obtained by processing a material having higher rigidity than the substrate S, for example, a metal material such as stainless steel into a thin plate shape.
- the belt portion 31 supports a supported surface (back surface with respect to the processing surface) Sb of the substrate S by a support surface 31a provided on the outer peripheral surface.
- the belt portion 31 is provided with a plurality of through holes 31h arranged around the circumference in a circumferential direction. Each through hole 31h is formed to penetrate between the support surface 31a of the belt portion 31 and the back surface 31b provided on the back side of the support surface 31a.
- the plurality of through holes 31h are formed in five rows in the Y-axis direction.
- a part of the belt portion 31 is disposed to face the supported surface Sb of the substrate S.
- the belt portion 31 supports the supported surface Sb of the substrate S.
- the number of rows of the plurality of through holes 31h in the Y-axis direction is not limited to five, and may be any number. Further, the number of through holes 31h provided over one circumference may be arbitrary.
- the belt conveyance unit 32 has four conveyance rollers (drive units) 32a to 32d.
- a belt portion 31 is wound around the transport rollers 32a to 32d. That is, the four transport rollers 32 a to 32 d are in contact with the inner peripheral surface of the belt portion 31.
- two transport rollers 32a and transport rollers 32b are disposed upstream of the guide stage 33 in the transport direction of the substrate S ( ⁇ X axis side).
- the other two transport rollers 32c and transport rollers 32d are arranged downstream of the guide stage 33 in the transport direction of the substrate S (+ X axis side).
- the belt unit 31 is configured to move so as to cross in the X-axis direction with respect to the processing region 10p by the processing apparatus 10.
- the transport roller 32a and the transport roller 32b are arranged such that their axial directions are parallel to the Y-axis direction. Moreover, the conveyance roller 32a and the conveyance roller 32b are arrange
- the positions of the transport rollers 32a to 32d are adjusted so that the belt portion 31 rotates and moves with tension. Further, between the transport roller 32b and the transport roller 32c and between the transport roller 32d and the transport roller 32a, the positions in the X-axis direction are aligned so that the belt portion 31 moves in parallel with the X-axis direction. It is arranged in the state.
- At least one of the transport rollers (roller members) 32a to 32d serves as a driving roller for driving the belt portion 31.
- the transport roller 32d is provided with a drive unit 32e.
- the transport roller (drive unit) 32d is a drive roller, and the remaining transport rollers 32a to 32c are driven rollers.
- the transport roller 32d which is a driving roller, is formed of, for example, a porous material, and is connected to a suction device (not shown), adsorbs the belt portion 31 to the outer peripheral surface, and transmits power to the belt portion 31. Also good.
- the guide stage 33 is formed by combining a plurality of porous materials through which gas can pass, for example.
- the shape of the guide stage 33 is a rectangular plate shape.
- the + Z-axis side surface (guide surface) 33a of the guide stage 33 is formed in parallel to the XY plane.
- the guide stage 33 guides the substrate S so as to move in the longitudinal direction of the substrate S and the direction in which the belt portion 31 moves (X-axis direction).
- the guide stage 33 is disposed between the transport roller 32b and the transport roller 32c in the X-axis direction. Further, the guide stage 33 is disposed so as to overlap the belt portion 31 in the Y-axis direction. The guide stage 33 is disposed inside the belt portion 31.
- the guide surface 33 a of the guide stage 33 is provided to face the back surface (inner peripheral surface) 31 b of the belt portion 31. The position of the guide stage 33 is fixed by a fixing mechanism (not shown).
- FIG. 3 is a diagram showing a configuration when the substrate support mechanism 30 is viewed from the + Z-axis side.
- a guide stage 33 is disposed below the belt portion 31.
- the gas suction part 33s is formed of a porous material extending in the X-axis direction, and is disposed to face the first area AR1 in which the row of the through holes 31h is formed on the back surface of the belt part 31. For this reason, when the belt portion 31 rotates, the through holes 31h of each row move on the gas suction portion 33s.
- the gas supply part 33t is formed of a porous material extending in the X-axis direction, and the gas suction part 33s and the gas supply part 33t are alternately provided in the Y-axis direction (width direction). Yes.
- a partition member 34 separates the gas suction part 33s and the gas supply part 33t. The partition member 34 is provided so as to cross the guide stage 33 in the X-axis direction from the ⁇ X-axis side end of the guide stage 33 to the + X-axis side end.
- the gas supply part 33t is arranged opposite to the second area AR2 different from the first area AR1 on the back surface of the belt part 31. That is, the gas supply part 33t is disposed so as to oppose between the rows of the through holes 31h in the back surface of the belt part 31.
- region AR2 is formed between each 1st area
- FIG. 4 is a diagram showing a configuration along the section AA in FIG.
- the gas suction part 33 s is connected to the suction system 35.
- the suction system 35 includes a suction pump 35a and a suction path 35b.
- the gas suction part 33s is connected to the suction pump 35a via the suction path 35b.
- the suction path 35b is connected to the bottom surface (the surface on the ⁇ Z axis side) 33b of the guide stage 33. For this reason, in the gas suction part 33s, gas is sucked in a direction that passes from the guide surface 33a through the gas suction part 33s to the bottom surface 33b.
- the gas supply unit 33t is connected to the supply system 36.
- the supply system 36 includes a gas supply source 36a and a supply path 36b.
- the gas supply part 33t is connected to the gas supply source 36a via the supply path 36b.
- the supply path 36 b is connected to the bottom surface 33 b side of the guide stage 33. For this reason, in the gas supply part 33t, gas is supplied in the direction which passes the gas supply part 33t from the bottom face 33b, and escapes to the guide surface 33a.
- a position reference portion 31 c is formed on the belt portion 31.
- the position reference portion 31c is formed in the circumferential direction, for example, at the end of the belt portion 31 on the ⁇ Y axis side.
- the position reference unit 31c indicates a reference for detecting the position of the substrate S in the X-axis direction or the Y-axis direction.
- an encoder EC for detecting the position reference portion 31c is provided on the + Z axis side of the belt portion 31, an encoder EC for detecting the position reference portion 31c is provided on the + Z axis side of the belt portion 31, an encoder EC for detecting the position reference portion 31c is provided.
- the detection result of the encoder EC is transmitted to the control unit CONT. Under the control of the control unit CONT, for example, the rotation speed of the transport roller 32d and the transport speed of the substrate S are adjusted according to the detection result of the encoder EC.
- the substrate processing apparatus 100 configured as described above manufactures display elements (electronic devices) such as an organic EL element and a liquid crystal display element by a roll method under the control of the control unit CONT.
- display elements electronic devices
- CONT control unit
- a belt-like substrate S wound around a roller (not shown) is attached to the substrate supply unit 2.
- a roller (not shown) is rotated so that the substrate S is sent out from the substrate supply unit 2 in this state.
- the substrate S that has passed through the substrate processing unit 3 is taken up by a roller (not shown) provided in the substrate recovery unit 4.
- the surface Sa to be processed of the substrate S can be continuously transferred to the substrate processing unit 3.
- the substrate S is transferred to the substrate processing unit 3 by the transfer device 20 of the substrate processing unit 3 after the substrate S is sent out from the substrate supply unit 2 and taken up by the substrate recovery unit 4.
- the components of the display element are sequentially formed on the substrate S by the processing apparatus 10 while being conveyed.
- the substrate S When the substrate S is transported using the substrate support mechanism 30 of the transport device 20 when performing processing by the processing device 10, the substrate S is first sandwiched between the nip rollers R1 and R2 under the control of the control unit CONT. Make sure that This operation makes it difficult for vibration from the upstream side of the nip rollers R1 and R2 to be transmitted to the substrate S.
- the substrate S is transported toward the tension adjusting roller R3 by the nip rollers R1 and R2 under the control of the control unit CONT. Under the control of the control unit CONT, the substrate S is cleaned using the substrate cleaning unit 21 while the substrate S reaches the tension adjusting roller R3. When the substrate S reaches the tension adjusting roller R3 and is applied to the tension adjusting roller R3, a tension in the Y-axis direction is applied to the substrate S.
- the substrate S is transported toward the substrate suction roller R4 by the tension adjusting roller R3 under the control of the control unit CONT. Moreover, the belt part 31 rotates by control of the control part CONT. At this time, under the control of the control unit (control device) CONT, the rotation of the substrate suction roller R4 and the rotation of the transport roller 32d are synchronized so that the moving speed of the substrate S is equal to the moving speed of the belt unit 31. .
- static electricity charged on the substrate S is removed using the static electricity removing unit 22 under the control of the control unit CONT. Under the control of the control unit CONT, static electricity is removed while the substrate S is disposed on the upstream side of the substrate support mechanism 30.
- the substrate S is transported to the + X-axis side, and the substrate support mechanism 30 passes in the + X-axis direction.
- the static electricity of the substrate S is removed using the static electricity removing section 23 under the control of the control section CONT.
- a tension in the X-axis direction is applied to the substrate S using the substrate suction roller R4.
- the gas After applying tension in the X-axis direction to the substrate S, the gas is supplied from the gas supply unit 33t and the gas suction unit 33s sucks the gas under the control of the control unit CONT, so that the substrate S is in the belt unit 31. Adsorbed to the support surface 31a.
- the control unit CONT performs control so that the transport speed of the substrate S is higher than the rotational speed of the belt unit 31 at the moment when the substrate S is attracted to the support surface 31 a of the belt unit 31.
- FIG. 5 is a diagram showing a configuration along the section AA in FIG.
- FIG. 5 is a diagram illustrating a mode in which gas supply by the gas supply unit 33t and gas suction by the gas suction unit 33s are performed.
- the gas forms a gas layer between the guide surface 33 a of the guide stage 33 and the back surface 31 b of the belt part 31.
- suction is performed by the gas suction unit 33s, a part of the gas constituting the gas layer is sucked by the gas suction unit 33s.
- the control unit CONT can maintain the gas layer at a constant thickness by adjusting the gas supply amount and the suction amount. For the adjustment amount by the control unit CONT at this time, data obtained by conducting experiments or simulations in advance can be used.
- the supported surface Sb of the substrate S is adsorbed to the support surface 31a through the through holes 31h of the belt portion 31 facing the gas suction portion 33s by the suction of the gas suction portion 33s.
- the guide stage 33 supports the back surface 31b of the belt portion 31 in a non-contact state, and the belt portion 31 supports the substrate S by adsorbing the substrate S to the support surface 31a.
- tension in the X-axis direction is applied to the substrate S by the substrate suction roller R4, and tension in the Y-axis direction is applied to the substrate S by the tension adjusting roller R3. It is held in a flat state without being formed.
- the processing surface Sa of the substrate S is processed using the processing apparatus 10 in this state.
- the substrate suction roller R4 and the transport roller 32d rotate under the control of the control unit (control device) CONT, so that the transport speed of the substrate S and the moving speed of the belt unit 31 are made constant. Can be synchronized. Therefore, the substrate S and the belt portion 31 are moved in the + X axis direction while the flat state of the substrate S is maintained. Further, the position reference portion 31c formed on the support surface 31a of the belt portion 31 is detected using the encoder EC under the control of the control portion (position adjusting portion) CONT, and the substrate S and the belt portion 31 are detected based on the detection result. The positional relationship between is adjusted. In addition, under the control of the control unit CONT, the belt unit 31 is appropriately cleaned using the belt cleaning unit 37, and the static electricity is removed from the belt unit 31 using the static electricity removing unit 38.
- the transport device 20 has the support surface 31a that supports the supported surface Sb of the substrate S, and a plurality of penetrations that penetrate the support surface 31a and the back surface 31b of the support surface 31a.
- the gas suction part 33s disposed to face the first region AR1 including the plurality of through holes 31h, and the back surface 31b of the belt part 31
- a gas supply portion 33t disposed opposite to the second region AR2 different from the first region AR1, and supplying and sucking gas to the back surface 31b of the belt portion 31 thereby providing a belt portion.
- a substrate support mechanism 30 that holds the back surface 31b of the substrate 31 in a non-contact state and adsorbs the substrate S to the support surface 31a through the plurality of through holes 31h. It is possible, it is possible to convey the substrate S in a flat state.
- the technical scope of the present invention is not limited to the above-described embodiment, and appropriate modifications can be made without departing from the spirit of the present invention.
- the configuration in which the shape of the processing region 10p by the processing device 10 is a rectangular shape has been described as an example.
- the configuration is not limited thereto.
- the exposure apparatus EX having a plurality of projection optical systems (PL1 to PL5) is provided as the processing apparatus 10, the projection areas by the projection optical systems PL1 to PL5 are processed areas 10p. It becomes.
- the projection optical systems PL1, PL3, and PL5 are arranged in a line along the Y-axis direction on the upstream side in the transport direction of the substrate S, and the projection optical systems PL2 and PL4 are downstream in the transport direction of the substrate S. It is arranged in a row along the Y-axis direction on the side.
- the exposure apparatus EX has a configuration in which the projection optical systems PL1, PL3, and PL5 and the projection optical systems PL2 and PL4 are arranged so as to be shifted in the X-axis direction.
- each projection region 10p by the projection optical systems PL1 to PL5 is arranged so that a part of the projection region 10p in the Y-axis direction overlaps with each other adjacent projection regions 10p when viewed in the X-axis direction.
- the number and arrangement of projection optical systems are not limited to the example shown in FIG. For example, it may be a configuration in which four or less or six or more projection optical systems are arranged. Further, a configuration in which a plurality of projection optical systems are arranged in a line, or a configuration in which a plurality of projection optical systems are arranged in three or more rows may be employed.
- FIG. 7 a configuration in which a plurality of processing heads H are arranged side by side may be employed.
- one processing head H is provided on the upstream side in the transport direction of the substrate S, and two processing heads H are provided on the downstream side in the transport direction of the substrate S.
- the processing regions 10p are formed at three locations on the substrate S.
- a configuration in which two or four or more processing heads H are arranged may be used, or an arrangement different from the arrangement in FIG. 7 may be provided.
- the guidance stage 33 demonstrated and demonstrated as an example the structure by which the partition member 34 which interrupts
- the configuration in which the static electricity removing units 22 and 23 and the substrate cleaning unit 21 are provided has been described.
- the static electricity removing units 22 and 23 and / or the substrate cleaning unit 21 may be omitted. Good.
Abstract
Description
本願は、2012年4月3日に出願された日本国特願2012-084819号に基づき優先権を主張し、その内容をここに援用する。
また、本発明の他の態様は、基板の表面を一定の状態に維持した状態で基板を搬送しつつ、その基板の表面に電子デバイスを形成する方法を提供することを目的とする。
また、本発明の他の態様によれば、基板を一定の状態に維持して搬送することで、基板上に高精度、高精細な電子デバイスを形成することが可能な電子デバイス形成方法を提供することができる。
図1は、本発明の実施形態に係る基板処理装置100の構成を示す模式図である。
図1に示すように、基板処理装置100は、帯状(長尺状)に形成された基板(例えば、帯状のフィルム部材)Sを供給する基板供給部2と、基板Sの表面(被処理面)Saに対して処理を行う基板処理部3と、基板Sを回収する基板回収部4と、これらの各部を制御する制御部(制御装置)CONTと、を有している。基板処理部(パターン形成装置)3は、基板供給部2から基板Sが送り出されてから、基板回収部4によって基板Sが回収されるまでの間に、基板Sの表面に各種処理を実行する。この基板処理装置100は、基板S上に例えば有機EL素子、液晶表示素子等のアクティブ・マトリックス方式の表示パネル(電子デバイス)を形成する場合に用いることができる。
図2に示すように、搬送装置20は、長尺状の基板Sの搬送方向の上流側から順に、案内ローラー5(図1参照)、ニップローラー(搬送機構)R1並びにR2、基板洗浄部21、張力調整ローラー(搬送機構)R3、静電気除去部(除去装置)22、基板支持機構30、静電気除去部(除去装置)23、基板吸着ローラー(搬送機構)R4、ニップローラー(搬送機構)R5並びにR6、案内ローラー6(図1参照)を有している。このうち、案内ローラー5、ニップローラーR1並びにR2、張力調整ローラーR3、基板吸着ローラーR4、ニップローラーR5並びにR6、案内ローラー6は、基板Sの搬送経路に沿って設けられており、上記複数の案内ローラーに含まれる構成である。
基板支持機構30は、ベルト部(支持部材)31、ベルト搬送部32及び案内ステージ33を有している。また、基板支持機構30は、ベルト部31の表面を洗浄するベルト洗浄部37と、ベルト部31に帯電する静電気を除去する静電気除去部38とを有している。
ベルト部31は、基板Sの被支持面Sbを支持する。なお、Y軸方向のおける複数の貫通孔31hの列の数は、5列に限らず、何列であってもよい。また、一周に亘って設けられる貫通孔31hの数も任意であってよい。
図4に示すように、気体吸引部33sは、吸引系35に接続されている。吸引系35は、吸引ポンプ35a及び吸引経路35bを有する。気体吸引部33sは、吸引経路35bを介して吸引ポンプ35aに接続されている。吸引経路35bは、案内ステージ33の底面(-Z軸側の面)33b側に接続されている。このため、気体吸引部33sでは、案内面33aから気体吸引部33sを通過して底面33bへ抜ける方向に気体が吸引される。
位置基準部31cは、基板SのX軸方向又はY軸方向の位置を検出するための基準を示している。ベルト部31の+Z軸側には、位置基準部31cを検出するエンコーダECが設けられている。エンコーダECの検出結果は、制御部CONTに送信されるようになっている。
制御部CONTの制御により、エンコーダECの検出結果に応じて、例えば搬送ローラー32dの回転速度と、基板Sの搬送速度との調整が行われる。
以下、上記構成の基板処理装置100を用いて表示素子を製造する工程を説明する。
制御部CONTの制御により、この状態の基板供給部2から前記基板Sが送り出されるように、不図示のローラーが回転される。そして、基板処理部3を通過した前記基板Sが、基板回収部4に設けられた不図示のローラーで巻き取られる。この基板供給部2及び基板回収部4を制御することによって、基板Sの被処理面Saを基板処理部3に対して連続的に搬送することができる。
図5に示すように、気体供給部33tから気体が供給されると、前記気体は、案内ステージ33の案内面33aとベルト部31の裏面31bとの間に、気体層を形成する。また、気体吸引部33sによって吸引が行われると、気体層を構成する一部の気体が気体吸引部33sに吸引される。このとき、制御部CONTは、気体の供給量と吸引量とを調整することで、気体層を一定の厚さに保持することができる。このときの制御部CONTによる調整量については、予め実験やシミュレーションなどを行うことで得られたデータなどを用いることができる。
例えば、上記実施形態においては、処理装置10による処理領域10pの形状が、矩形の形状である構成を例に挙げて説明したが、これに限られることは無い。
例えば、図6に示すように、処理装置10として複数の投影光学系(PL1~PL5)を有する露光装置EXが設けられている場合には、投影光学系PL1~PL5による投影領域が処理領域10pとなる。
Claims (16)
- 基板を搬送する搬送装置であって、
前記基板の一方の面を支持する支持面を有し、前記支持面と前記支持面の裏面とを貫通する複数の貫通孔が形成された支持部材と、
前記支持部材の裏面のうち、前記複数の孔を含む第一領域に対向して配置される気体吸引部と、前記支持部材の裏面のうち、前記第一領域とは異なる第二領域に対向して配置される気体供給部とを備え、前記支持部材の裏面に対して前記気体の供給及び吸引を行うことによって、前記支持部材の裏面を非接触状態で保持するとともに、前記複数の貫通孔を介して前記基板を前記支持面に吸着させる保持機構と
を備える搬送装置。 - 前記基板を所定方向に搬送する搬送機構と、
前記支持部材を前記所定方向に駆動する駆動部と、
前記搬送機構と前記駆動部とを制御し、前記基板と前記支持部材とを同期駆動する制御装置と
を備える請求項1に記載の搬送装置。 - 前記保持機構は、前記支持面の裏面を前記所定方向に案内する案内面が形成された案内ステージを有し、
前記気体供給部及び前記気体吸引部は、前記案内ステージに設けられる
請求項1又は請求項2に記載の搬送装置。 - 前記複数の貫通孔は、前記所定方向に少なくとも一列以上に並んで配置されている
請求項2又は請求項3に記載の搬送装置。 - 前記気体吸引部は、前記所定方向に少なくとも一列以上に並んで配置されている
請求項2から請求項4のいずれか一項に記載の搬送装置。 - 前記案内ステージは、多孔質材料を用いて形成されている
請求項3から請求項5のいずれか一項に記載の搬送装置。 - 前記支持部材は、無端状に形成されたベルト部を有し、
前記駆動部は、前記ベルト部を前記所定方向に回転させる複数のローラー部材を有する
請求項2から請求項6のいずれか一項に記載の搬送装置。 - 前記ベルト部は、前記基板の位置を検出するための位置基準部を有する
請求項1から請求項7のいずれか一項に記載の搬送装置。 - 前記位置基準部と前記基板との位置関係に基づいて、前記基板の位置を調整する位置調整部
を更に備える請求項8に記載の搬送装置。 - 前記基板に張力を付与する張力付与機構を有し、
前記基板は、前記支持面に対し、張力が付与された状態で吸着される
請求項1から請求項7のいずれか一項に記載の搬送装置。 - 前記張力付与機構は、前記基板に付与する張力を調整する調整部を有する
請求項9に記載の搬送装置。 - 前記調整部は、前記支持部材に関して前記所定方向の下流側に配置され、前記基板の裏面を吸着して前記基板に対して前記所定方向の上流側に張力を付加する第一ローラーを有する
請求項9に記載の搬送装置。 - 前記調整部は、前記第一ローラーの下流側で、前記基板を撓ませた状態で前記基板を案内する第二ローラーを有する
請求項10に記載の搬送装置。 - 前記基板又は前記支持部材のいずれか一方に帯電した電荷を除去する除去装置を更に備える
請求項1から請求項11のうちいずれか一項に記載の搬送装置。 - 前記支持面を洗浄する洗浄部を更に備える
請求項1から請求項12のいずれか一項に記載の搬送装置。 - 長尺状の可撓性の基板を長尺方向に搬送して、前記基板の表面に電子デバイスを形成する方法であって、
前記基板よりも剛性が高い材料で薄板状に作られると共に、表面と裏面とを貫通する複数の貫通孔が形成された支持部材の前記表面に前記基板を載置すること、
前記支持部材の裏面のうち、前記複数の貫通孔を含む第一領域と対向して配置される気体吸引部によって、前記複数の貫通孔を介して前記基板を前記支持部材の表面に吸着すること、
前記支持部材の裏面のうち、前記第一領域とは異なる第二領域に対向して配置される気体供給部によって、前記支持部材の裏面を気体層によって支持すること、
前記支持部材の表面に前記基板が吸着され、前記支持部材の裏面が前記気体層で支持された状態で、駆動部によって前記支持部材を前記長尺方向に移動すること、
前記支持部材の移動により搬送される前記基板の表面の所定領域に、パターン形成装置によって電子デバイスの為のパターンを形成すること、と
を含む電子デバイス形成方法。
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- 2012-11-01 JP JP2014509000A patent/JP6137171B2/ja active Active
- 2012-11-01 WO PCT/JP2012/078378 patent/WO2013150677A1/ja active Application Filing
- 2012-11-01 KR KR1020147026425A patent/KR101854959B1/ko active Application Filing
- 2012-12-10 TW TW106117184A patent/TWI660449B/zh active
- 2012-12-10 TW TW108112908A patent/TWI674645B/zh active
- 2012-12-10 TW TW101146357A patent/TWI590369B/zh active
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JPWO2013150677A1 (ja) | 2015-12-17 |
KR101962083B1 (ko) | 2019-03-25 |
CN104203779B (zh) | 2016-04-20 |
KR101879162B1 (ko) | 2018-07-16 |
JP6137171B2 (ja) | 2017-05-31 |
KR101809001B1 (ko) | 2017-12-13 |
KR20150000476A (ko) | 2015-01-02 |
CN104203779A (zh) | 2014-12-10 |
TWI660449B (zh) | 2019-05-21 |
CN105752686B (zh) | 2018-09-21 |
HK1203183A1 (en) | 2015-10-23 |
KR20190010732A (ko) | 2019-01-30 |
TW201929139A (zh) | 2019-07-16 |
KR101854959B1 (ko) | 2018-05-04 |
KR20180072871A (ko) | 2018-06-29 |
JP2018199580A (ja) | 2018-12-20 |
JP6593507B2 (ja) | 2019-10-23 |
KR20170095395A (ko) | 2017-08-22 |
TWI674645B (zh) | 2019-10-11 |
CN105752686A (zh) | 2016-07-13 |
KR20180038071A (ko) | 2018-04-13 |
TW201836046A (zh) | 2018-10-01 |
HK1224264A1 (zh) | 2017-08-18 |
JP6414270B2 (ja) | 2018-10-31 |
KR102000430B1 (ko) | 2019-07-15 |
TWI590369B (zh) | 2017-07-01 |
JP2017144433A (ja) | 2017-08-24 |
TW201351555A (zh) | 2013-12-16 |
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