WO2011070960A1 - 可撓性基板の搬送装置 - Google Patents
可撓性基板の搬送装置 Download PDFInfo
- Publication number
- WO2011070960A1 WO2011070960A1 PCT/JP2010/071551 JP2010071551W WO2011070960A1 WO 2011070960 A1 WO2011070960 A1 WO 2011070960A1 JP 2010071551 W JP2010071551 W JP 2010071551W WO 2011070960 A1 WO2011070960 A1 WO 2011070960A1
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- WO
- WIPO (PCT)
- Prior art keywords
- flexible substrate
- pair
- grip rollers
- substrate
- film forming
- Prior art date
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- 239000000758 substrate Substances 0.000 title claims abstract description 218
- 238000012546 transfer Methods 0.000 claims abstract description 27
- 239000010409 thin film Substances 0.000 claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims description 103
- 239000010408 film Substances 0.000 claims description 91
- 230000005540 biological transmission Effects 0.000 claims description 33
- 238000003825 pressing Methods 0.000 claims description 28
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000010030 laminating Methods 0.000 claims description 4
- 238000005229 chemical vapour deposition Methods 0.000 abstract description 3
- 238000005240 physical vapour deposition Methods 0.000 abstract description 3
- 239000002985 plastic film Substances 0.000 abstract description 2
- 229920006255 plastic film Polymers 0.000 abstract description 2
- 230000032258 transport Effects 0.000 description 58
- 238000001514 detection method Methods 0.000 description 16
- 238000004804 winding Methods 0.000 description 15
- 238000006073 displacement reaction Methods 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 6
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- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 3
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 3
- 230000037303 wrinkles Effects 0.000 description 3
- 238000010073 coating (rubber) Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000005755 formation reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
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- 230000008901 benefit Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
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- 238000002347 injection Methods 0.000 description 1
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- 238000007738 vacuum evaporation Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H20/00—Advancing webs
- B65H20/02—Advancing webs by friction roller
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67706—Mechanical details, e.g. roller, belt
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/677—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations
- H01L21/67703—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations
- H01L21/67721—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for conveying, e.g. between different workstations between different workstations the substrates to be conveyed not being semiconductor wafers or large planar substrates, e.g. chips, lead frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
- H01L31/20—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof such devices or parts thereof comprising amorphous semiconductor materials
- H01L31/206—Particular processes or apparatus for continuous treatment of the devices, e.g. roll-to roll processes, multi-chamber deposition
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/30—Orientation, displacement, position of the handled material
- B65H2301/32—Orientation of handled material
- B65H2301/323—Hanging
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/87—Photovoltaic element manufacture, e.g. solar panels
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a transfer device for transferring a strip-like flexible substrate, and more specifically, to a device for forming a plurality of thin films on a flexible substrate to produce a thin film laminate such as a thin film photoelectric conversion element Transport apparatus.
- a rigid substrate is usually used as a substrate for a thin film laminate such as a semiconductor thin film, but a flexible substrate such as a plastic film may be used for the purpose of improving productivity and reducing costs by handling through a roll. is there.
- a flexible substrate such as a plastic film
- Patent Document 1 while transporting a strip-like flexible substrate supplied from an unwinding roll at a predetermined pitch, a plurality of thin film layers having different properties are stacked on the flexible substrate by a plurality of film forming chambers. Apparatus is disclosed.
- the type of transport is performed with the width direction of the flexible substrate aligned in the horizontal direction, and one end of the flexible substrate in the width direction is located on the upper side.
- the latter is advantageous in that the footprint is smaller than the former and the surface of the flexible substrate is less likely to be contaminated.
- the transport span of the flexible substrate is increased, it becomes difficult to maintain the transport height of the flexible substrate constant against gravity, and the flexible substrate may sag or the flexible substrate may The tendency for wrinkles to occur on the surface is remarkable. Therefore, conventionally, there has been proposed a substrate holding device for maintaining the transport height of the flexible substrate.
- FIG. 14 shows an example of a substrate holding device in a conventional flexible substrate transfer device.
- the conventional substrate holding device 90 fixes a pair of grip rollers 91 and 92 sandwiching the upper end of the flexible substrate 93 and a pair of grip rollers 91 and 92. And a unit 94.
- the surfaces of the pair of grip rollers 91 and 92 are covered with elastic bodies 91a and 92a, respectively.
- a pair of roller fixing shafts 95 and 96 are attached to the roller fixing portion 94, and the pair of grip rollers 91 and 92 are rotatably attached to lower portions 95a and 96a of the roller fixing shafts 95 and 96, respectively.
- the upper end 95b of one roller fixing shaft 95 is fixed to the roller fixing portion 94
- the upper end 96b of the other roller fixing shaft 96 is rotatably attached to the roller fixing portion 94 via the hinge 97. It is done.
- the pair of grip rollers 91 and 92 are configured to be able to contact and separate by rotating the roller fixing shaft 96 about the hinge 97.
- spring attachment portions 95c and 96c are respectively provided on the upper surfaces of both roller fixing shafts 95 and 96, and the spring attachment portions 95c and 96c are connected by a tension spring 98.
- the tension spring 98 generates an urging force in the pressure contact direction of the pair of grip rollers 91 and 92.
- one end of the tension spring 98 is attached to one spring attachment portion 95 c via a biasing force adjustment screw 99.
- the substrate holding device 90 can adjust the pressure generated between the pair of grip rollers 91 and 92 by rotating the biasing force adjusting screw 99.
- the present invention has been made in view of such circumstances, and the object thereof is not easily affected by the decrease in the frictional force of the grip roller or the change in the diameter, and the transport height of the flexible substrate is maintained constant. It is an object of the present invention to provide a flexible substrate transport device that can
- a transfer device for transferring a strip-like flexible substrate, wherein one end of the flexible substrate in the width direction is located on the upper side.
- a substrate transfer unit configured to transfer the flexible substrate in a posture, and a substrate holding device for maintaining the transfer height of the flexible substrate, the substrate holding device being at least the upper side of the flexible substrate
- a pair of grip rollers sandwiching the end, a support mechanism rotatably supporting the pair of grip rollers, and a support mechanism supporting the pair of grip rollers so as to be able to contact and separate from each other;
- a transmission mechanism for transmitting a force for pressing one grip roller to the other grip roller, and the pair of grip lows connected to the transmission mechanism and angularly displacing the connection portion with the transmission mechanism
- First drive means configured to adjust the pressure contact force of the first and second support members, and the pair of grip rollers in the conveying direction of the flexible substrate by being connected to the support mechanism and pivoting about a support shaft
- An angle adjustment mechanism configured to
- the substrate holding apparatus can rotate a pair of lower grip rollers sandwiching the lower end of the flexible substrate and the pair of lower grip rollers.
- a lower support mechanism that supports and supports the pair of lower grip rollers so as to be able to contact and separate from each other, and is connected to the lower support mechanism, pressing one lower grip roller against the other lower grip roller Lower transmission mechanism that transmits the force of the lower transmission mechanism, and adjusting the pressure contact force of the pair of lower grip rollers by angularly displacing the connection point with the lower transmission mechanism Connected to the lower support mechanism and the lower support mechanism configured as described above, and the pair of lower grip rollers with respect to the transport direction of the flexible substrate by rotating around a pivot as a fulcrum As inclined
- the flexible substrate of the pair of lower grip rollers is formed by angularly displacing the lower angle adjusting mechanism and the lower angle adjusting mechanism connected to the lower angle adjusting mechanism.
- second lower drive means configured to adjust the tilt angle with respect to the transport direction.
- a plurality of film forming chambers for forming a thin film laminate by laminating a plurality of thin films on the surface of the flexible substrate in the transport direction of the flexible substrate It arrange
- maintenance apparatus is arrange
- the transmission mechanism and the first driving means are disposed in one film forming chamber in the adjacent film forming chamber, and the angle adjusting mechanism and the second drive are provided.
- a means is disposed in the other film forming chamber in the adjacent film forming chamber, and the pair of grip rollers and the support mechanism are disposed at the boundary between the adjacent film forming chambers.
- the substrate is transferred in the vertical posture in which one end in the width direction of the flexible substrate is located on the upper side.
- a substrate holding device for maintaining the transport height of the flexible substrate, wherein the substrate holding device holds a pair of grip rollers sandwiching at least the upper end of the flexible substrate;
- a support mechanism rotatably supporting a pair of grip rollers, and a support mechanism supporting the pair of grip rollers so as to be able to contact and separate from each other, and the support mechanism press one grip roller against the other grip roller
- a moving means and an angle adjusting mechanism connected to the support mechanism and configured to tilt the pair of grip rollers with respect to the transport direction of the flexible substrate by rotating around a pivot as a fulcrum;
- the holding mechanism is maintained by adjusting the angle of the pair of grip rollers by the angle adjustment mechanism. You can increase your power.
- the transport height of the flexible substrate can be kept constant, and the sag of the flexible substrate can be suppressed.
- the flexible substrate can be transferred while adjusting not only the pressure between the pair of grip rollers but also the angle of the pair of grip rollers. It is possible to control the height with higher precision.
- the substrate holding device includes a pair of lower grip rollers sandwiching the lower end of the flexible substrate, and the pair A lower support mechanism rotatably supporting the lower grip roller and supporting the pair of lower grip rollers in an attachable / detachable manner, and the lower support mechanism being coupled to the lower support mechanism;
- a lower transmission mechanism for transmitting a force for pressing on the other lower grip roller, and the lower transmission mechanism are connected to the lower transmission mechanism, and the pair of lower sides are angularly displaced at a connection point with the lower transmission mechanism.
- the first lower drive means configured to adjust the pressure contact force of the grip roller, and the lower support mechanism are connected to each other, and the pair of lower grip rollers can be moved by rotating the support shaft as a fulcrum.
- Flexible board transport A lower angle adjustment mechanism configured to be inclined with respect to a direction, and the pair of lower grips are connected to the lower angle adjustment mechanism, and are angularly displaced at a connection point with the lower angle adjustment mechanism. Since the second lower drive means configured to adjust the inclination angle of the roller with respect to the transport direction of the flexible substrate, the lifting force by the pair of grip rollers and the pair of lower grip rollers are provided.
- the pull-down force of the flexible substrate causes the flexible substrate to be stretched in the width direction, and the generation of wrinkles in the flexible substrate can be more effectively prevented.
- a plurality of film forming chambers for forming a thin film laminate by laminating a plurality of thin films on the surface of the flexible substrate A plurality of thin films having different properties on the flexible substrate are disposed along the transport direction of the flexible substrate, and at least one of the substrate holding devices is disposed between the plurality of film forming chambers.
- the conveyance height of a flexible substrate is maintained uniformly, and it can suppress the sag of a flexible substrate.
- the transmission mechanism and the first driving means are disposed in one film forming chamber in the adjacent film forming chamber
- the angle adjustment mechanism and the second driving means are disposed in the other film forming chamber in the adjacent film forming chamber
- the pair of grip rollers and the support mechanism are disposed at the boundary portion of the film forming chamber adjacent to each other.
- FIG. 3 is a cross-sectional view taken along the line AA of FIG. It is an expanded sectional view of a substrate holding device of a transportation device concerning an embodiment of the present invention.
- FIG. 5 is a cross-sectional view taken along line AA of FIG. 4; It is the figure which looked at the board
- FIG. 5 is a cross-sectional view taken along the line BB of FIG. 4;
- FIG. 5 is a cross-sectional view taken along the line CC of FIG.
- FIG. 4 It is an expanded sectional view of a substrate holding device in a conveyance device concerning an embodiment of the present invention, and is a figure showing an example which adjusted an angle of a pair of grip rollers.
- FIG. 10 is a cross-sectional view taken along line AA of FIG.
- FIG. 12 is a cross-sectional view taken along the line AA of FIG.
- FIG. 1 is a schematic plan view showing the entire configuration of a transfer apparatus 100 according to an embodiment of the present invention.
- the transfer apparatus 100 for transferring a flexible substrate includes an unwinding unit 10 for delivering a strip-shaped flexible substrate 1 and a flexible substrate on which a thin film laminate is formed. And a winding unit 30 for winding 1.
- the flexible substrate 1 is conveyed in a vertical posture in which one end in the width direction is located on the upper side.
- the flexible substrate 1 is illustrated and described in the transport state in which the width direction is the vertical direction, but the present invention is not limited thereto.
- the transport apparatus 100 is used for an apparatus for forming a plurality of thin films on the flexible substrate 1 to manufacture a thin film laminate such as a thin film photoelectric conversion element.
- the transport apparatus 100 further includes a film forming unit 20 for laminating a plurality of thin films on the flexible substrate 1 between the unwinding unit 10 and the winding unit 30.
- the unwinding unit 10, the film forming unit 20, and the winding unit 30 are airtightly connected to each other, and the entire transport device 100 is maintained at a predetermined degree of vacuum.
- two production lines are laid out in parallel.
- the unwinding unit 10 and the winding unit 30 are disposed in each system of the manufacturing line, but the film forming unit 20 is configured such that two systems have a common chamber structure.
- the unwinding unit 10 delivers an unwinding roll 11 for delivering the flexible substrate 1 and the flexible substrate 1 delivered from the unwinding roll 11 toward the film forming unit 20.
- an unwinding side guide roller 14 for guiding the film forming unit 20 to the film forming unit 20.
- the unwinding roll 11, the unwinding side feed roller 12, the unwinding side tension detection rollers 13a and 13b, and the unwinding side guide roller 14 are installed such that the axial direction is in the width direction of the flexible substrate 1 There is.
- each roller described below is also installed so that the axial direction is the width direction of the flexible substrate 1 (in the present embodiment, the width direction of the flexible substrate 1 is the vertical direction) unless otherwise mentioned. There is.
- the winding unit 30 includes a winding roll 31 that winds the flexible substrate 1, and a winding side feed roller 32 that feeds the flexible substrate 1 toward the winding roll 31.
- Winding side tension detection rollers 33a and 33b for detecting the tension of the flexible substrate 1 delivered from the film unit 20, and a winding side guide roller 34 for guiding the flexible substrate 1 on the downstream side of the film forming unit 20
- an idler roller 36 and a side end position control (EPC) roller 35 for controlling the position of the take-up guide roller 34 in the width direction of the flexible substrate 1.
- the side end position control roller 35 is configured to be capable of tilting its axial direction in the vertical direction, and rotates based on the detection value of the transport height of the flexible substrate 1 in the winding side guide roller 34.
- An axis (not shown) is tilted to finely adjust the delivery direction of the flexible substrate 1 upward or downward.
- the film forming unit 20 includes a plurality of film forming chambers 40 (a,. ⁇ ⁇ , J) is equipped.
- the plurality of film forming chambers 40 (a,..., J) are arranged at a predetermined pitch along the linear path of the flexible substrate 1 between the unwinding unit 10 and the winding unit 30. ing.
- Each film forming chamber 40 is configured of a vacuum evaporation unit for performing chemical vapor deposition (CVD) such as plasma CVD or physical vapor deposition (PVD) such as sputtering.
- CVD chemical vapor deposition
- PVD physical vapor deposition
- the transport apparatus 100 is an apparatus for manufacturing a thin film solar cell in which photoelectric conversion elements are stacked on the flexible substrate 1
- the transport apparatus 100 forms a plurality of film formations in which photoelectric conversion layers having a pin structure are stacked by plasma CVD.
- FIG. 2 schematically shows one film forming chamber 40 for plasma CVD.
- 3 is a cross-sectional view taken along the line AA of FIG.
- the film forming chamber 40 includes two film forming units 41 corresponding to two production lines.
- the film forming unit 41 includes a fixed chamber 42 and a movable chamber 43 configured to be able to contact and separate from the fixed chamber 42 by means of advancing and retracting driving means (not shown) such as a fluid pressure cylinder.
- a ground electrode 44 incorporating a heater 44a is disposed in the fixed chamber 42.
- the movable chamber 43 is provided with a high frequency electrode 45 having a large number of gas injection holes (not shown) on the surface.
- the high frequency electrode 45 is connected to a high frequency power source (not shown) outside the film forming chamber 40.
- the film forming chamber 40 includes a main structural member 46 disposed in the periphery thereof, a side wall 47 provided so as to be able to open and close with respect to the main structural member 46, and A ceiling panel 48 fixed to the top of the structural member 46 is further provided.
- a movable chamber 43 including a high frequency electrode 45 is attached to each side wall 47.
- an opening 460 for passing the flexible substrate 1 is provided through the main structural material 46.
- a thin film in such a film forming chamber 40 first, the movable chamber 43 and the fixed chamber 42 (in the direction of the arrow in FIG. ) The pressure is applied so that the flexible substrate 1 is sandwiched between the movable chamber 43 and the fixed chamber 42. Next, a source gas containing a thin film component is introduced into the film forming chamber 40 through the gas introduction pipe 45a, and a voltage is applied to the high frequency electrode 45 to generate plasma. Thus, a thin film is formed on the surface of the flexible substrate 1 by the chemical reaction of the source gas.
- the transfer apparatus 100 includes the substrate holding apparatus 21 and 22 for maintaining the transfer height of the flexible substrate 1 in the plurality of film forming chambers 40.
- the substrate holding devices 21 and 22 are disposed at the boundary between the film forming chambers 40. Further, the substrate holding devices 21 and 22 are respectively installed vertically between the film forming chambers 40 so as to hold both ends in the width direction (vertical direction) of the flexible substrate 1 (see FIG. 3).
- the substrate holding device 21 disposed on the upper side will be described, and the substrate holding device 22 disposed on the lower side has the same configuration, so the description will be omitted.
- the substrate holding device 21 includes a pair of grip rollers 23 and 24 sandwiching the upper end in the vertical direction of the flexible substrate 1 and the upstream of the flexible substrate 1 in the transport direction.
- a detection sensor 49 for detecting the transport height of the flexible substrate 1 on the side, and a pair of grip rollers 23, 24 rotatably support them and supporting a pair of grip rollers 23, 24 so as to be mutually contactable and detachable
- the transmission mechanism 50 for transmitting a force for pressing one grip roller 23 to the other grip roller 24, and the pressing force of the pair of grip rollers 23 and 24 based on the detection value of the detection sensor 49.
- a pressing force adjusting drive means (first drive means) 60 configured to adjust is provided.
- FIG. 4 is an enlarged cross-sectional view of the substrate holding device 21 of FIG.
- FIG. 5 is a cross-sectional view taken along line AA of FIG.
- the pair of grip rollers 23 and 24 is composed of a fixed roller 23 and a movable roller 24.
- the stationary roller 23 includes a metal roller body 23a and a heat-resistant rubber coating 23b attached to the circumferential surface of the roller body 23a.
- the movable side roller 24 is provided with a metal roller body 24a and a heat-resistant rubber coating 24b attached to the circumferential surface of the roller body 24a.
- the support mechanism 25 is composed of a plate-like bracket 26, a movable roller support member 27 mounted on the lower surface of the bracket 26, and a stationary roller support member 28. There is.
- a connecting portion 29 to which the transmission mechanism 50 is connected is provided at the upper end 27 a of the movable side roller support member 27.
- the roller body 24a of the movable roller 24 is rotatably attached to the lower end 27b of the movable roller support member 27 via a bearing (not shown).
- a roller body 23a of the fixed roller 23 is rotatably attached to the lower end 28b of the fixed roller support member 28 via a bearing.
- the transmission mechanism 50 includes a first arm 51 connected to the pressing force adjusting drive means 60, a pivot shaft 52 extending downward from the first arm 51, and a pivot shaft 52. And an extension arm 54 connecting the second arm 53 and the connecting portion 29 of the support mechanism 25.
- the extension arm 54 is formed so as to bypass the main structural member 46 of the film forming chamber 40 from the second arm 53 and toward the connecting portion 29 of the support mechanism 25.
- a shaft 55 is provided at the lower end 54 a of the extension arm 54, and the shaft 55 is rotatably attached to the connecting portion 29 of the support mechanism 25 via a bearing (not shown).
- the shaft 55 of the extension arm 54 is fixed to the upper end 27 a of the movable roller support member 27 by a set screw (not shown). As a result, the movable-side roller support member 27 rotates integrally with the extension arm 54 about the shaft 55, and the movable-side roller 24 and the fixed-side roller 23 can contact and separate.
- a roller 56 whose axis is the transport direction of the flexible substrate 1 is rotatably attached to the upper end 54 b of the extension arm 54. Further, at the middle portion of the extension arm 54, an operation plate 54c for releasing the pair of grip rollers 23, 24 described later is attached.
- the second arm 53 is attached to the lower end 52 a of the rotating shaft 52 located inside the film forming chamber 40.
- the second arm 53 includes first and second engaging portions 53 a and 53 b that engage with the extension arm 54.
- the roller 56 of the extension arm 54 is disposed between the first engagement portion 53a and the second engagement portion 53b.
- the first engagement portion 53 a and the second engagement portion 53 b are disposed to face each other at a distance larger than the diameter of the roller 54.
- the pivot shaft 52 extends vertically through the ceiling panel 48 of the film forming chamber 40, and is attached to the ceiling panel 48 of the film forming chamber 40 via a seal bearing 57.
- the first arm 51 is fixed to the upper end 52 b of the rotating shaft 52 located outside the film forming chamber 40.
- the seal bearing 57 is attached to the opening 480 a of the film forming chamber 40 via a plate 57 a or an O-ring, and supports the rotating shaft 52 in an airtight and rotatable manner.
- a transparent member such as heat resistant glass is attached to the other opening where the seal bearing 57 and the pivot shaft 52 are not installed, and serves as an observation window for observing the inside of the film forming chamber 40.
- a connecting pin 58 is provided to project upward at the distal end 51 a of the first arm 51.
- the connection pin 58 is rotatably supported by a support hole (not shown) vertically penetrating the tip end portion 51 a of the first arm 51.
- a spring 59 is connected to the connection pin 58.
- the spring 59 is a tension spring, and the other end is connected to the pressure adjusting drive unit 60.
- the pressing force adjusting drive means 60 is composed of an actuator 61, a drive shaft 62 extending from the actuator 61, and a drive arm 63 fixed to the drive shaft 62.
- the actuator 61 is a rotary actuator such as a servomotor.
- the actuator 61 is disposed on an upper plate 64 fixed via a support frame (not shown).
- the drive shaft 62 of the actuator 61 is provided at a position where it faces the connection pin 58 of the first arm 51 and the axial center coincides.
- a support pin 65 protrudes downward at the tip end portion 63 a of the drive arm 63.
- the support pin 65 is rotatably supported by a support hole (not shown) vertically penetrating the tip end portion 63 a of the drive arm 63.
- the other end of the spring 59 is coupled to the support pin 65 of the drive arm 63 via an adjustment screw 66.
- the spring 59 is mounted in a state of being previously extended between the connection pin 58 of the first arm 51 and the support pin 65 of the drive arm 63, and the tension F is adjusted by adjusting the degree of extension with the adjustment screw 66. It can be done. Further, as shown in FIG. 5, a sector plate 67 is coaxially attached to the proximal end of the drive arm 63. An over travel sensor 68 is disposed in the vicinity of the outer periphery of the sector plate 67.
- FIG. 6 is a top view of the substrate holding device 21 according to the present embodiment.
- the actuator 61 is configured to be driven by a control signal output based on the detection value of the detection sensor (see FIG. 3) 49.
- the actuator 61 is configured to pivotally displace the drive arm 63 to a predetermined angular position between the minimum pressure position 63x and the maximum pressure position 63y, as shown in FIG. As a result, the biasing force corresponding to the angular displacement of the drive arm 63 is loaded on the first arm 51 of the transmission mechanism 50.
- the operator moves the operation plate 54c of the extension arm 54 toward the flexible substrate 1 side.
- the extension arm 54 is moved to 54 'in FIG.
- the movable side support member 27 and the extension arm 54 rotate in the clockwise direction in FIG. 5 about the shaft 55, and the movable side roller 24 moves to 24 'in FIG. I will be away from 23.
- the extension arm 54 moves to 54 '
- the second arm 53 pivots to the position of 53' in FIG.
- the first arm 51 connected to the pivot shaft 52 pivots clockwise in FIG. 6 and pivots to the position 51 '.
- the biasing direction of the spring 59 with respect to the first arm 51 is reversed, and the first arm 51 is held at the position 51 'in FIG.
- the second arm 53 and the extension arm 54 are also held at the positions 53 'and 54' in the figure, respectively.
- the movable side roller 24 is held in a state of being separated from the fixed side roller 23, and the flexible substrate 1 can be introduced between the movable side roller 24 and the fixed side roller 23.
- the first arm 51 When the operator presses the operation plate 54c of the extension arm 54 to return the extension arm 54 to the original position after introducing the flexible substrate 1, the first arm 51 also pivots to the original position. It will be done. As a result, the biasing direction of the spring 59 is reversed to the pressing side, and the flexible substrate 1 is nipped between the movable roller 24 and the fixed roller 23.
- FIG. 4 is an enlarged cross-sectional view of the substrate holding device 21 of FIG. 7 is a cross-sectional view taken along the line BB of FIG. 4, and FIG. 8 is a cross-sectional view taken along the line CC of FIG.
- the substrate holding device 21 includes an angle adjusting mechanism 70 configured to incline the pair of grip rollers 23 and 24 with respect to the transport direction of the flexible substrate 1, and the pair of grip rollers 23. , 24 and an angle adjustment drive means (second drive means) 80 configured to adjust the inclination angle of the flexible substrate 1 with respect to the transport direction.
- an angle adjusting mechanism 70 configured to incline the pair of grip rollers 23 and 24 with respect to the transport direction of the flexible substrate 1, and the pair of grip rollers 23. , 24 and an angle adjustment drive means (second drive means) 80 configured to adjust the inclination angle of the flexible substrate 1 with respect to the transport direction.
- the angle adjustment mechanism 70 includes a first link 71 connected to the angle adjustment drive unit 80, a second link 72 extending in the horizontal direction from the first link 71, and a second link 72. And a frame 73 extending downward along the main structural member 46 of the film forming chamber 40 and connected to the bracket 26 of the support mechanism 25, and a base plate 74 disposed on the main structural member 46 of the film forming chamber 40. It is done.
- a roller 75 whose axis is the vertical direction is rotatably attached to one end 71 a of the first link 71.
- the second link 72 is fixed to the other end 71 b of the first link 71.
- the second link 72 extends horizontally from the first link and is connected to the upper end 73 a of the frame 73.
- the frame 73 is rotatably attached to the base plate 74 via a pivot 76 at a position near the bracket 26 of the support mechanism 25. Further, the frame 73 is provided with a spring support portion 73 b at a position above the support shaft 76. One end of a support spring 77 is attached to the spring support 73b. The support spring 77 is a compression spring, and the other end is attached to the base plate 74.
- the angle adjustment drive unit 80 includes an actuator 81, a drive shaft 82 extending from the actuator 81, and a drive arm 83 fixed to the drive shaft 82.
- the actuator 81 is a rotary actuator such as a servomotor.
- the actuator 81 is disposed on an upper plate 84 fixed via a support frame.
- the drive shaft 82 of the actuator 81 extends vertically through the ceiling panel 48 of the film forming chamber 40 and is attached to the ceiling panel 48 of the film forming chamber 40 via the seal bearing 85. It is done.
- the seal bearing 85 is attached to the opening 480 b of the film forming chamber 40 via a plate, an O-ring, etc., and supports the drive shaft 82 in an airtight and rotatable manner.
- the drive arm 83 is attached to the distal end portion 82 a of the drive shaft 82, and extends horizontally from the drive shaft 82 of the actuator 81 toward the first link 71.
- a pair of roller pinching portions 86 a and 86 b are provided at the tip end portion 83 a of the drive arm 83, and the pair of roller pinching portions 86 a and 86 b have the diameter of the roller 75 of the first link 71. They are arranged opposite to each other at a wider interval.
- the actuator 81 of the angle adjustment drive unit 80 is configured to be driven by a control signal output based on the detection value of the detection sensor (see FIG. 3) 49.
- the actuator 81 is configured to turn the drive arm 83 to a predetermined angular position by rotating the drive shaft 82.
- FIGS. 9 and 10 are diagrams showing an example in which the angle of the pair of grip rollers 23 and 24 is adjusted.
- the first and second links 71 and 72 are flexible according to the angular displacement of the drive arm 83. It moves in the transport direction of the substrate 1.
- the frame 73 rotates counterclockwise with the support shaft 76 as a fulcrum, and the bracket 26 of the support mechanism 25 inclines downward with respect to the transport direction of the flexible substrate 1. It will be. Thereby, the inclined downward by an angle theta 1 with respect to the conveying direction of the pair of grip rollers 23 and 24 the flexible substrate 1.
- FIG. 11 and 12 show another example in which the angle of the pair of grip rollers 23 and 24 is adjusted.
- the first and second links 71, 72 are flexible substrates according to the angular displacement of the drive arm 83. It moves in the opposite direction to the conveyance direction of 1.
- the frame 73 pivots clockwise with the support shaft 76 as a fulcrum, and the bracket 26 of the support mechanism 25 inclines upward with respect to the transport direction of the flexible substrate 1. become.
- the pair of grip rollers 23 and 24 also incline upward at an angle ⁇ 2 with respect to the transport direction of the flexible substrate 1.
- the substrate holding device 21 disposed on the upper side of the flexible substrate 1 has been described above with reference to FIGS. 4 to 12, the substrate holding device 22 disposed on the lower side of the flexible substrate 1 is also Is the same but the configuration is reversed.
- FIG. 13 shows the relationship between the pressure (N) generated on the pair of grip rollers 23 and 24, the angle (deg) of the pair of grip rollers 23 and 24, and the lifting force (N) generated on the flexible substrate 1 Is shown.
- the angle between the pair of grip rollers 23 and 24 in FIG. 13 is an angle inclined upward with respect to the transport direction of the flexible substrate 1. That is, FIG. 13 shows the case where ⁇ 2 in FIG. 11 is changed.
- the lifting force can be improved by increasing the angle of the pair of grip rollers 23 and 24. That is, by controlling both the pressure generated on the pair of grip rollers 23 and 24 and the angle of the pair of grip rollers 23 and 24, a larger lifting force can be obtained.
- the angles ⁇ 1 and ⁇ 2 of the pair of grip rollers 23 and 24 can be set in the range of 0.1 ° to 6 °.
- dynamic friction occurs when the angle exceeds approximately 6 °. Became dominant and tend not to improve lifting power.
- the flexible substrate 1 is transported from the unwinding unit 10 through the film forming unit 20 to the winding unit 30 in a predetermined cycle time.
- the movable chamber 43 in the film forming unit 41 is in a state of being separated from the fixed chamber 42.
- the flexible substrate 1 is transferred between the movable chamber 43 and the fixed chamber 42 by a length of one film forming chamber.
- the detection sensor 49 disposed on the downstream side of the flexible substrate 1 in the transport direction detects the position (transport height) of the upper end portion of the flexible substrate 1 in the vertical direction.
- a detection value corresponding to the deviation direction or the deviation amount is sent to the pressing force adjustment drive means 60 and the angle adjustment drive means 80.
- the pressure adjustment drive unit 60 and the angle adjustment drive unit 80 respectively control the actuators 61 and 81 based on the detected values. For example, as shown in FIG. 13, there is a limit to the lifting force that can be obtained only by increasing the pressing force generated on the pair of grip rollers 23 and 24.
- the lifting force is increased by adjusting the angle of the pair of grip rollers 23 and 24 by the angle adjusting drive means 80 while increasing the pressing force 23 and 24. If the desired lifting force can not be obtained even if the pressing force of the pair of grip rollers 23 and 24 is increased (if the friction force of the grip rollers 23 and 24 decreases, etc.), the angle adjusting drive means 80 Thus, only the angle of the pair of grip rollers 23 and 24 is adjusted to increase the lifting force.
- the film forming process in the film forming chamber 40 is completed, and the movable chamber 43 and the fixed chamber 42 of the film forming unit 41 are separated. Then, the transfer period in the cycle time is reached, and the flexible substrate 1 is transferred between the movable chamber 43 and the fixed chamber 42 by a length of one film forming chamber. At this time, since the flexible substrate 1 is transported in a state where the lifting force by the pair of grip rollers 23 and 24 is increased, the flexible substrate 1 moves upward, and the deflection of the flexible substrate 1 It is corrected.
- the detection of the transport height and the adjustment of the lifting force in the stop period in the cycle time and the correction of the transport height in the transport period in the cycle time are alternately performed. As a result, the transport height of the flexible substrate 1 is maintained within a certain or predetermined intersection.
- the substrate holding device 21 holds the pair of grip rollers 23 and 24 sandwiching at least the upper end of the flexible substrate 1 in the vertical direction, and the pair of grip rollers 23 and 24 And a support mechanism 25 rotatably supporting the pair of grip rollers 23 and 24 and transmitting the force for pressing one grip roller 24 to the other grip roller 23.
- the pressing force adjusting drive means 60 configured to adjust the pressing force of the pair of grip rollers 23 and 24 by angularly displacing the connection portion between the mechanism 50 and the transmission mechanism 50, and the support shaft 76 as a fulcrum
- An angle adjustment mechanism 70 configured to incline the pair of grip rollers 23 and 24 with respect to the transport direction of the flexible substrate 1 by rotating
- an angle An angle adjustment drive unit 80 configured to adjust the inclination angle of the pair of grip rollers 23 and 24 with respect to the transport direction of the flexible substrate 1 by angularly displacing the connection portion with the adjustment mechanism 70; Therefore, even if the lifting force is reduced due to a decrease in the frictional force of the grip rollers 23, 24 or a change in the diameter of the grip rollers 23, the angle adjustment mechanism 70 adjusts the angle of the pair of grip rollers 23, 24. By doing this, the lifting power can be increased. Thereby, the conveyance height of the flexible substrate 1 can be maintained constant, and the sag of the flexible substrate 1 can be suppressed.
- the flexible substrate 1 can be transported while adjusting not only the pressure between the pair of grip rollers 23 and 24 but also the angle of the pair of grip rollers 23 and 24. Therefore, the control of the transport height of the flexible substrate 1 can be performed with higher accuracy.
- the transmission mechanism 50 and the driving unit 60 for adjusting the pressing force are disposed in one film forming chamber 40 in the adjacent film forming chamber 40, and the angle adjusting mechanism 70 and An angle adjustment drive unit 80 is disposed in the other film forming chamber 40 in the adjacent film forming chamber 40, and disposed at the boundary portion of the film forming chamber 40 in which the pair of grip rollers 23 and 24 and the support mechanism 25 are adjacent.
- the substrate holding device 21 is installed in a small space between the adjacent film forming chambers 40, and the installation space in the film forming chamber 40 can be saved.
- the support point of the spring 59 is angularly displaced around the connection point with the transmission mechanism 50 in order to adjust the pressing force of the pair of grip rollers 23 and 24.
- the pair of grip rollers 23, 24, the support mechanism 25, the transmission mechanism 50, and the angle adjustment mechanism 70 are disposed in the film forming chamber 40, and The means 60 and the angle adjusting drive means 80 are disposed outside the film forming chamber 40. Since the inside of the film forming chamber 40 is depressurized to a predetermined degree of vacuum and is maintained at a relatively high temperature, it is difficult to install driving means including an actuator such as a motor or a fluid pressure cylinder. Therefore, in the transfer apparatus 100 according to the present embodiment, the pressing force and the angle of the pair of grip rollers 23 and 24 are remotely operated by the two driving means 60 and 80 installed outside the film forming chamber 40. Therefore, the load on the driving means 60, 80, etc. is small, and moreover, the driving force can be efficiently transmitted into the film forming chamber 40.
- the substrate holding devices 21 and 22 move up and down between the film forming chambers 40 so as to hold both ends of the flexible substrate 1 in the width direction (vertical direction). Because of being installed on each side, it is flexible by the lifting force by the pair of grip rollers 23 and 24 of the upper substrate holding device 21 and the pulling force of the pair of lower gripping rollers of the lower substrate holding device 22.
- the elastic substrate 1 is expanded in the width direction, and generation of wrinkles and the like in the flexible substrate 1 can be more effectively prevented.
- the grip rollers are disposed on both the upper and lower sides, but the grip rollers may be disposed only on the upper side.
- the flexible substrate 1 is conveyed in a vertical posture in which one end in the width direction is the upper side.
- the flexible substrate 1 is positioned such that one end in the width direction is on the upper side and the flexible substrate 1 is inclined with respect to the vertical direction. It may be transported in a state of
- the flexible substrate 1 is conveyed in a state where the longitudinal direction is horizontal, but the longitudinal direction of the flexible substrate 1 may be inclined with respect to the horizontal direction.
- the lifting force is adjusted when the film forming process is performed in the film forming chamber 40 during the stop period while the flexible substrate 1 is transported in a predetermined cycle time.
- the present invention is not limited to this, and can also be carried out when film formation is performed while the flexible substrate 1 is continuously transported. In this case, the transport height of the flexible substrate 1 can be constantly monitored by the detection sensor 49 to adjust the lifting force.
- the transport height of the flexible substrate 1 may be maintained only by the upper substrate holding device 21.
- the transport height of the flexible substrate 1 is made constant by balancing the gravity acting on the flexible substrate 1 and the lifting forces of the pair of grip rollers 23 and 24 of the upper substrate holding device 21. Can be maintained.
- Reference Signs List 1 flexible substrate 10 unwinding unit 20 film forming unit 30 winding unit 40 film forming chamber 41 film forming unit 50 transmission mechanism 51 first arm 52 rotation shaft 53 second arm 54 extension arm 55 shaft portion 56 of extension arm Extension arm roller 57 Seal bearing 58 First arm connection pin 59 Spring 60 Drive for pressure adjustment 61 Actuator 62 Drive shaft 63 Drive arm 70 Angle adjustment mechanism 71 First link 72 Second link 73 Frame 74 Base plate 75 First Link roller 76 Support shaft 80 Drive means for angle adjustment 81 Actuator 82 Drive shaft 83 Drive arm 100 Transport device
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Abstract
Description
例えば、特許文献1には、巻出ロールから供給される帯状の可撓性基板を所定のピッチで搬送しながら、複数の成膜室によって可撓性基板上に性質の異なる複数の薄膜を積層する装置が開示されている。
しかし、可撓性基板の搬送スパンが長くなると、重力に抗して可撓性基板の搬送高さを一定に維持するのが困難になり、可撓性基板が垂れ下がったり、可撓性基板の表面に皺が発生する傾向が顕著になる。
したがって、従来より、可撓性基板の搬送高さを維持するための基板保持装置が提案されている。
図14に示すように、従来の基板保持装置90は、可撓性基板93の上側の端部を挟持する一対のグリップローラ91,92と、これら一対のグリップローラ91,92を固定するローラ固定部94とを備えている。
また、本発明に係る搬送装置によれば、一対のグリップローラ間の加圧力だけでなく、一対のグリップローラの角度も調節しながら可撓性基板の搬送を行えるので、可撓性基板の搬送高さの制御をより高精度に行うことができる。
図2に示すように、成膜室40は、2つの製造ラインに対応した2つの成膜ユニット41を備えている。成膜ユニット41は、固定チャンバ42と、流体圧シリンダなどの進退駆動手段(図示せず)により固定チャンバ42に対して接離可能に構成された可動チャンバ43とを備えている。
また、基板保持装置21,22は、可撓性基板1の幅方向(上下方向)の両端を保持するように各成膜室40の間で上下にそれぞれ設置されている(図3参照)。なお、以下では、上側に配置された基板保持装置21について説明し、下側に配置された基板保持装置22については同様の構成であるため説明を省略する。
図4及び図5に示すように、一対のグリップローラ23,24は、固定側ローラ23と可動側ローラ24とから構成されている。固定側ローラ23は、金属製のローラ本体23aと、このローラ本体23aの周面に被着された耐熱性のゴム被覆23bとを備えている。また、可動側ローラ24も同様に、金属製のローラ本体24aと、このローラ本体24aの周面に被着された耐熱性のゴム被覆24bとを備えている。
また、延長アーム54の軸部55は、可動側ローラ用支持部材27の上端部27aに止めネジ(図示せず)により固定されている。これにより、可動側ローラ用支持部材27が、軸部55を中心として延長アーム54と一体的に回動し、可動側ローラ24と固定側ローラ23とが接離できるようになっている。また、延長アーム54の上端部54bには、可撓性基板1の搬送方向を軸心とするローラ56が回動自在に取付けられている。さらに、延長アーム54の中間部には、後述する一対のグリップローラ23,24の解除操作のための操作板54cが取付けられている。
アクチュエータ61は、サーボモータなどのロータリーアクチュエータである。アクチュエータ61は、支持フレーム(図示せず)を介して固定されたアッパープレート64上に配置されている。そして、アクチュエータ61の駆動軸62は、第1アーム51の連結ピン58と対向しかつ軸心が一致するような位置に設けられている。
この付勢力は、回動軸52を介して第2アーム53に伝達される。そして、図5に示すように、第2アーム53の第1係合部53aと延長アーム54のローラ56とが当接した状態で、延長アーム54のローラ56が第1係合部53aによって可撓性基板1とは反対方向に押されることになる。その結果、延長アーム54及び可動側支持部材27が、軸部55を中心に回動して、可動側ローラ24が付勢力にレバー比を乗じた加圧力で固定側ローラ23に圧接することになる。
未処理の巻出ロール11から引き出された可撓性基板1を成膜室40に導入する場合、一対のグリップローラ23,24の圧接状態を解除する必要がある。この際、まず、図示しない解除スイッチ等を操作してアクチュエータ6に解除信号を送る。解除信号が送られると、図6に2点鎖線で示されるように、駆動アーム63が、最大加圧位置63yを越えて63′の位置まで角変位される。
アクチュエータ81は、サーボモータなどのロータリーアクチュエータである。アクチュエータ81は、支持フレームを介して固定されたアッパープレート84上に配置されている。
角度調整用駆動手段80のアクチュエータ81は、検知センサ(図3参照)49の検出値に基づいて出力された制御信号によって駆動されるように構成されている。アクチュエータ81は、駆動軸82を回転させることにより駆動アーム83を所定の角位置に回動変位させるようになっている。
図10に示すように、駆動アーム83が、図8の基準位置から反時計方向に回動されると、駆動アーム83の角変位に応じて第1及び第2リンク71,72が可撓性基板1の搬送方向に動くことになる。これに伴い、図9に示すように、フレーム73が支軸76を支点として反時計方向に回動し、支持機構25のブラケット26が可撓性基板1の搬送方向に対して下向きに傾斜することになる。これにより、一対のグリップローラ23,24も可撓性基板1の搬送方向に対して下向きに角度θ1だけ傾斜することになる。
図12に示すように、駆動アーム83が、図8の基準位置から時計方向に回動されると、駆動アーム83の角変位に応じて第1及び第2リンク71,72が可撓性基板1の搬送方向とは反対方向に動くことになる。これに伴い、図11に示すように、フレーム73が支軸76を支点として時計方向に回動し、支持機構25のブラケット26が可撓性基板1の搬送方向に対して上向きに傾斜することになる。これにより、一対のグリップローラ23,24も可撓性基板1の搬送方向に対して上向きに角度θ2だけ傾斜することになる。
しかし、図13に示すように、一対のグリップローラ23,24の角度を増加させることにより持上力が向上させることができる。つまり、一対のグリップローラ23,24に生じる加圧力と一対のグリップローラ23,24の角度の両方を制御することによって、より大きな持上力が得られることになる。
また、可撓性基板1およびグリップローラ23,24の表面性状や接圧などにもよるが、一対のグリップローラ23,24を上向きに傾斜させる場合、角度が概ね6°を超えると、動摩擦が主体的になり、持上力が向上しない傾向にある。
ここで、基準ラインから上方または下方に偏位が生じている場合には、偏位方向や偏位量に応じた検出値が加圧力調整用駆動手段60及び角度調整用駆動手段80に送られる。
また、一対のグリップローラ23,24の加圧力を増加させても所望の持上力が得られない場合(グリップローラ23,24の摩擦力が低下した場合など)は、角度調整用駆動手段80により一対のグリップローラ23,24の角度のみを調整して、持上力を増加させる。
成膜室40内は、所定の真空度まで減圧され、かつ、比較的高い温度に維持されるので、モータや流体圧シリンダなどのアクチュエータを含む駆動手段を設置することは種々の困難を伴う。そこで、本実施形態に係る搬送装置100では、成膜室40の外部に設置した2つの駆動手段60,80により、一対のグリップローラ23,24の加圧力及び角度を遠隔的に操作する構成としているので、駆動手段60,80等への負担も小さく、しかも、駆動力を成膜室40内に効率良く伝達することができる。
また、上側と下側の両方にグリップローラが配置した構成の場合、可撓性基板1は、幅方向の片端部を上側に位置し且つ上下方向に対して可撓性基板1が傾斜するような状態で搬送されてもよい。
10 巻出部
20 成膜部
30 巻取部
40 成膜室
41 成膜ユニット
50 伝達機構
51 第1アーム
52 回動軸
53 第2アーム
54 延長アーム
55 延長アームの軸部
56 延長アームのローラ
57 シール軸受
58 第1アームの連結ピン
59 スプリング
60 加圧力調整用駆動手段
61 アクチュエータ
62 駆動軸
63 駆動アーム
70 角度調整機構
71 第1リンク
72 第2リンク
73 フレーム
74 ベースプレート
75 第1リンクのローラ
76 支軸
80 角度調整用駆動手段
81 アクチュエータ
82 駆動軸
83 駆動アーム
100 搬送装置
Claims (4)
- 帯状の可撓性基板を搬送する搬送装置であって、
前記可撓性基板の幅方向の片端部が上側に位置する縦姿勢で前記可撓性基板を搬送する基板搬送手段と、
前記可撓性基板の搬送高さを維持するための基板保持装置とを備え、
前記基板保持装置が、
前記可撓性基板の少なくとも上側端部を挟持する一対のグリップローラと、
前記一対のグリップローラが回転可能なように支持するとともに、前記一対のグリップローラを互いに接離可能に支持する支持機構と、
該支持機構に連結され、一方のグリップローラを他方のグリップローラに圧接するための力を伝達する伝達機構と、
該伝達機構に連結され、前記伝達機構との連結箇所を角変位させることにより前記一対のグリップローラの圧接力を調節するように構成された第1の駆動手段と、
前記支持機構に連結され、支軸を支点として回動することにより前記一対のグリップローラを前記可撓性基板の搬送方向に対して傾斜させるように構成された角度調整機構と、
該角度調整機構に連結され、前記角度調整機構との連結箇所を角変位させることにより前記一対のグリップローラの前記可撓性基板の搬送方向に対する傾斜角度を調節するように構成された第2の駆動手段と
を備えていることを特徴とする搬送装置。 - 前記基板保持装置が、
前記可撓性基板の下側端部を挟持する一対の下側グリップローラと、
前記一対の下側グリップローラを回転可能に支持するとともに、前記一対の下側グリップローラを互いに接離可能に支持する下側支持機構と、
該下側支持機構に連結され、一方の下側グリップローラを他方の下側グリップローラに圧接するための力を伝達する下側伝達機構と、
該下側伝達機構に連結され、前記下側伝達機構との連結箇所を角変位させることにより前記一対の下側グリップローラの圧接力を調節するように構成された第1の下側駆動手段と、
前記下側支持機構に連結され、支軸を支点として回転することにより前記一対の下側グリップローラを前記可撓性基板の搬送方向に対して傾斜させるように構成された下側角度調整機構と、
該下側角度調整機構に連結され、前記下側角度調整機構との連結箇所を角変位させることにより前記一対の下側グリップローラの前記可撓性基板の搬送方向に対する傾斜角度を調節するように構成された第2の下側駆動手段と
を備えていることを特徴とする請求項1に記載の搬送装置。 - 前記可撓性基板の表面に複数の薄膜を積層して薄膜積層体を形成するための複数の成膜室を前記可撓性基板の搬送方向に沿って配置し、
前記基板保持装置が、前記複数の成膜室の間に少なくとも1つ配置されていることを特徴とする請求項1又は2に記載の搬送装置。 - 前記伝達機構と前記第1の駆動手段とが、隣接する成膜室における一方の成膜室に配置され、前記角度調整機構と前記第2の駆動手段とが、隣接する成膜室における他方の成膜室に配置され、前記一対のグリップローラと前記支持機構とが隣接する成膜室の境界部分に配置されていることを特徴とする請求項3に記載の搬送装置。
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JP2011545185A JP5423808B2 (ja) | 2009-12-11 | 2010-12-02 | 可撓性基板の搬送装置 |
CN201080053947.9A CN102762473A (zh) | 2009-12-11 | 2010-12-02 | 挠性基板的传送装置 |
EP10835881A EP2511210A1 (en) | 2009-12-11 | 2010-12-02 | Apparatus for transferring flexible substrate |
US13/512,231 US8528725B2 (en) | 2009-12-11 | 2010-12-02 | Flexible substrate conveying device |
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EP (1) | EP2511210A1 (ja) |
JP (1) | JP5423808B2 (ja) |
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Cited By (4)
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EP2592173A3 (de) * | 2011-11-08 | 2014-03-05 | FHR Anlagenbau GmbH | Anordnung und Verfahren zur Durchführung eines Niedertemperatur - ALD-Prozesses |
CN111974788A (zh) * | 2020-09-07 | 2020-11-24 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | 一种剥离机构及剥离方法 |
CN112058875A (zh) * | 2020-09-07 | 2020-12-11 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | 一种真空吸附辊及吸附方法 |
CN114044386A (zh) * | 2021-11-15 | 2022-02-15 | 佛山市坦斯盯科技有限公司 | 一种柔性电路板aoi放卷检测设备 |
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JP5652692B2 (ja) * | 2009-12-14 | 2015-01-14 | 富士電機株式会社 | フィルム基板の搬送装置 |
CN107934547A (zh) * | 2017-12-21 | 2018-04-20 | 东莞科耀机电设备有限公司 | 一种pcb板材输送机 |
CN115401978B (zh) * | 2021-05-28 | 2024-05-10 | 武汉金牛经济发展有限公司 | 一种psp钢塑复合管专用的覆膜铝箔贴膜装置 |
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CN114044386A (zh) * | 2021-11-15 | 2022-02-15 | 佛山市坦斯盯科技有限公司 | 一种柔性电路板aoi放卷检测设备 |
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JPWO2011070960A1 (ja) | 2013-04-22 |
JP5423808B2 (ja) | 2014-02-19 |
US8528725B2 (en) | 2013-09-10 |
US20120298298A1 (en) | 2012-11-29 |
CN102762473A (zh) | 2012-10-31 |
EP2511210A1 (en) | 2012-10-17 |
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