WO2010050217A1 - 基板洗浄装置及びその方法 - Google Patents
基板洗浄装置及びその方法 Download PDFInfo
- Publication number
- WO2010050217A1 WO2010050217A1 PCT/JP2009/005738 JP2009005738W WO2010050217A1 WO 2010050217 A1 WO2010050217 A1 WO 2010050217A1 JP 2009005738 W JP2009005738 W JP 2009005738W WO 2010050217 A1 WO2010050217 A1 WO 2010050217A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cleaning
- tape
- substrate
- path
- pressing member
- Prior art date
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- 238000004140 cleaning Methods 0.000 title claims abstract description 727
- 239000000758 substrate Substances 0.000 title claims abstract description 294
- 238000000034 method Methods 0.000 title claims description 13
- 238000003825 pressing Methods 0.000 claims abstract description 139
- 238000011084 recovery Methods 0.000 claims description 50
- 239000012459 cleaning agent Substances 0.000 claims description 36
- 238000001514 detection method Methods 0.000 claims description 15
- 238000011109 contamination Methods 0.000 claims description 9
- 239000004744 fabric Substances 0.000 claims description 9
- 238000007599 discharging Methods 0.000 claims description 8
- 239000011521 glass Substances 0.000 description 9
- 238000005406 washing Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229930182556 Polyacetal Natural products 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B1/00—Cleaning by methods involving the use of tools
- B08B1/30—Cleaning by methods involving the use of tools by movement of cleaning members over a surface
-
- 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
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S134/00—Cleaning and liquid contact with solids
- Y10S134/902—Semiconductor wafer
Definitions
- the present invention relates to a substrate cleaning apparatus and method for cleaning cleaning surfaces respectively positioned on the front side and the back side of a side edge portion of a substrate such as a glass substrate used in a liquid crystal display device and a plasma display device.
- various components 54 may be mounted on a plurality of electrodes 52 formed on the side edge of the glass substrate 51 as shown in FIG.
- the cleaning surfaces surfaces that need to be cleaned
- FIG. 13B an anisotropic conductive film (ACF) 53 is pasted on the electrode 52.
- FIG. 13C the component 54 is thermocompression bonded to the electrode 52 through the anisotropic conductive film 53.
- a substrate cleaning apparatus for cleaning a cleaning surface of a side edge portion of a substrate is disclosed in Patent Document 1.
- the disclosed substrate cleaning apparatus moves the substrate in the longitudinal direction of the side edge in a state where the cloth cleaning tape is pressed against the side edge of the substrate by the pressing member. Thereby, the cleaning surface of the side edge portion of the substrate is cleaned by the cleaning tape.
- the substrate cleaning apparatus includes a substrate moving device 62 that moves the substrate 61 and a cleaning device 63 that cleans the substrate 61.
- the substrate moving device 62 supports the central portion of the substrate 61 from below.
- the substrate moving device 62 is configured to move the substrate 61 in the longitudinal direction of the side edge portion.
- the substrate 61 is positioned by the substrate moving device 62 with respect to the cleaning unit 64 of the cleaning device 63 in a direction orthogonal to the longitudinal direction of the side edge of the substrate 61.
- the cleaning device 63 includes pressing members 65 a and 65 b disposed on the front side and the back side of the side edge of the substrate 61 in the cleaning unit 64.
- These pressing members 65 a and 65 b are configured to press the cleaning tape 66 against the front side and the back side of the side edge portion of the substrate 61.
- the cleaning tape 66 is guided from the supply reel 67 a (67 b) by the guide roller 68 before cleaning the side edge of the substrate 61, and is directed between the pressing member 65 a (65 b) and the side edge of the substrate 61.
- a predetermined feed amount is moved.
- the cleaning agent is discharged onto the portion of the cleaning tape 66 that is moved between the pressing member 65 a (65 b) and the side edge of the substrate 61 by the movement of the cleaning tape 66.
- the portion of the cleaning tape 66 that has been cleaned is guided by the guide roller 68 and is finally wound around the collection roller 69a (69b). Further, the substrate cleaning apparatus is configured to confirm that an appropriate amount of cleaning agent has been discharged onto the cleaning tape 66 based on the color of the surface of the cleaning tape 66 detected by the sensor 70.
- this substrate cleaning apparatus uses one cleaning tape 66 for each of the front and back cleaning surfaces of the side edge of the substrate 61. Therefore, two tape paths for the cleaning tape are provided, and the substrate cleaning apparatus is increased in size. Further, only one wiping surface of the cleaning tape 66 is used for cleaning. Therefore, the cleaning cost of the side edge portion of the substrate is high.
- a substrate cleaning apparatus capable of solving this problem is disclosed in Patent Document 2.
- the substrate cleaning apparatus is configured to clean the front cleaning surface of the side edge of the substrate with one wiping surface of the cleaning tape and to clean the cleaning surface on the back side of the side edge with the other wiping surface. Yes.
- the cleaning tape is twisted 180 degrees in the middle from the front side cleaning surface to the rear side cleaning surface.
- Patent Document 3 a substrate cleaning apparatus that twists the cleaning tape 180 degrees is disclosed in Patent Document 3.
- This substrate cleaning apparatus is configured to clean the cleaning surface on either the front side or the back side of the substrate twice. The first cleaning is performed by one wiping surface of the cleaning tape, and the second cleaning is performed by the other wiping surface. Therefore, the cleaning tape is twisted 180 degrees.
- the present invention uses the two wiping surfaces of the cleaning tape for cleaning without twisting the cleaning tape by 180 degrees, so that the front side and the back side of the side edge portion of the substrate are used.
- An object is to appropriately clean the respective cleaning surfaces and to suppress the cleaning cost.
- liquid crystal display devices and plasma display devices have become larger, and thereby glass substrates have become larger.
- a large apparatus for moving the glass substrate in the longitudinal direction of the side edge portion thereof is required, it is preferable to move the cleaning tape because the cleaning cost can be reduced.
- the unit is preferably configured to be compact in order to move it at a speed of, for example, 300 to 500 mm / s in order to reduce the cleaning cost, specifically, in order to shorten the cleaning time. This is because a large unit size requires a large amount of energy for starting, accelerating, decelerating and stopping the unit.
- the present invention also constitutes a compact unit including a cleaning tape, which can be moved at high speed in the longitudinal direction of the side edge of the substrate, thereby shortening the cleaning time and cleaning the side edge of the substrate.
- the purpose is to control costs.
- the object is to reduce the cleaning cost of large substrates.
- the present invention is configured as follows.
- the first cleaning surface located on the front side of the side edge portion of the substrate and the second cleaning surface located on the back side are cleaned with a cloth cleaning tape having a first wiping surface and a second wiping surface.
- a substrate cleaning apparatus A first pressing member that presses the cleaning tape against the first cleaning surface; A second pressing member that presses the cleaning tape against the second cleaning surface; A tape path forming member that forms a tape path of the cleaning tape that passes between the first pressing member and the first cleaning surface and between the second pressing member and the second cleaning surface; A tape supply device for supplying cleaning tape to the tape path; A tape recovery device for recovering cleaning tape from the tape path; A tape drive for driving the cleaning tape; A cleaning agent discharge device for discharging the cleaning agent to the cleaning tape; A moving device that relatively moves the cleaning tape and the substrate in the longitudinal direction of the side edge of the substrate; The tape path is In a state where the first wiping surface is opposed to the first cleaning surface, the cleaning tape is placed between the first pressing member and the first cleaning surface in a direction
- the second pressing member with the second wiping surface facing the second cleaning surface in the same direction as the passing direction of the cleaning tape in the first route with the cleaning tape after passing the second route And a third path for passing between the first cleaning surface and the second cleaning surface.
- the first cleaning surface located on the front side of the side edge portion of the substrate and the second cleaning surface located on the back side are cleaned with a cloth cleaning tape having a first wiping surface and a second wiping surface.
- a substrate cleaning apparatus A first pressing member that presses the cleaning tape against the first cleaning surface; A second pressing member that presses the cleaning tape against the second cleaning surface; A tape path forming member that forms a tape path of the cleaning tape that passes between the first pressing member and the first cleaning surface and between the second pressing member and the second cleaning surface; A tape supply device for supplying cleaning tape to the tape path; A tape recovery device for recovering cleaning tape from the tape path; A tape drive for driving the cleaning tape; A cleaning agent discharge device for discharging the cleaning agent to the cleaning tape; A moving device that relatively moves the cleaning tape and the substrate in the longitudinal direction of the side edge of the substrate; The tape path is In a state where the first wiping surface is opposed to the first cleaning surface, the cleaning tape is placed between the first pressing member and the first cleaning surface in a direction
- the tape supply device has a supply reel around which the cleaning tape is wound,
- the tape recovery device has a recovery reel that winds and recovers the cleaning tape,
- a substrate cleaning apparatus in which a supply reel and a recovery reel are arranged in parallel.
- the substrate cleaning apparatus according to the second aspect, wherein the third path is formed by the tape path forming member so that the cleaning tape passes in the same direction as the cleaning tape passing direction in the first path. provide.
- Forming or forming a tape path including a fifth path that bypasses the second path and reaches the first path by passing the width of the second path in the cleaning tape width direction from the tape supply device A substrate cleaning apparatus according to any one of the first to third aspects is provided.
- a cleaning unit that includes at least a tape supply device, first and second pressing members, and a tape path forming member, and is detachably attached to the main body of the substrate cleaning device;
- the driving device for driving the tape supply device and the driving device for driving the first and second pressing members are included in the main body of the substrate cleaning device, according to any one of the first to third modes.
- a substrate cleaning apparatus is provided.
- the substrate according to any one of the first to third aspects, wherein the second path is formed by a tape path forming member so as to loop the cleaning tape along the periphery of the tape supply device.
- a cleaning device is provided.
- the first path is formed by the tape path forming member so that the cleaning tape passes between the first pressing member and the first cleaning surface in a direction away from the tape supply device
- the second path is formed by the tape path forming member so as to loop the cleaning tape that has passed through the first path along the periphery of the tape supply device
- the third path is formed by the tape path forming member so that the cleaning tape passes in the same direction as the passing direction of the cleaning tape in the first path.
- the control device controls the feeding amount of the cleaning tape so that the portion of the second wiping surface where the contamination more than the specified amount is detected by the contamination detection device skips between the second pressing member and the second cleaning surface.
- substrate cleaning apparatus as described in an 8th aspect which notifies a warning when the execution frequency of the skip by a control apparatus becomes more than regulation frequency is provided.
- the cloth is made of a first cleaning surface located on the front side of the side edge of the substrate and a second cleaning surface located on the back side, the first wiping surface and the second wiping surface being impregnated with a cleaning agent.
- a substrate cleaning method for cleaning with a cleaning tape of While maintaining the state where the cleaning tape is pressed against the first cleaning surface by the first pressing member and the state where the cleaning tape is pressed against the second cleaning surface by the second pressing member, the cleaning tape and the substrate are Cleaning the first and second cleaning surfaces by moving relative to the longitudinal direction of the side edges of the substrate; Cleaning tape, With the first wiping surface facing the first cleaning surface of the substrate, it passes between the first pressing member and the first cleaning surface in a direction perpendicular to the longitudinal direction of the side edge portion of the substrate.
- another substrate cleaning apparatus is: The first cleaning surface located on the front side of the side edge portion of the substrate and the second cleaning surface located on the back side are cleaned with a cloth cleaning tape having a first wiping surface and a second wiping surface.
- a substrate cleaning apparatus A first pressing member that presses the cleaning tape against the first cleaning surface; A second pressing member that presses the cleaning tape against the second cleaning surface; A tape path forming member that forms a tape path of the cleaning tape that passes between the first pressing member and the first cleaning surface and between the second pressing member and the second cleaning surface; Tape supply device that supplies cleaning tape to the tape path, Tape recovery device that recovers cleaning tape from the tape path, A tape drive for driving the cleaning tape, and A cleaning unit including a cleaning agent discharging device for discharging the cleaning agent to the cleaning tape; A cleaning unit moving device that moves the cleaning unit in the longitudinal direction of the side edge of the substrate; The tape supply device has a supply reel around which the cleaning tape is wound, The tape recovery device has a recovery reel that winds and recovers the cleaning tape, Provided is a substrate cleaning apparatus in which a supply reel and a recovery reel are arranged in parallel.
- the substrate cleaning apparatus according to the eleventh aspect is provided, wherein the cleaning unit moving device is configured to move the detachably mounted cleaning unit.
- the cleaning surfaces respectively positioned on the front side and the back side of the side edge of the substrate are appropriately cleaned. And the cleaning cost can be reduced.
- a cleaning unit capable of high-speed movement that is compactly configured by including a supply reel and a recovery reel in parallel.
- This cleaning unit shortens the cleaning time and suppresses the cleaning cost of the side edge portion of the substrate. Further, in the case of a large substrate, the cleaning time is shortened, and a large apparatus for moving the large substrate to the side edge is not necessary, thereby further reducing the cleaning cost.
- FIG. 1 is a schematic perspective view of a substrate cleaning apparatus according to a first embodiment of the present invention.
- An enlarged view of a part of FIG. (A) is a schematic side view of the substrate cleaning apparatus according to the embodiment, and (b) is a side view of the cleaning unit of the substrate cleaning apparatus.
- a substrate cleaning apparatus shown in FIG. 1 includes a substrate transfer device 2 that carries a substrate 1 into the substrate cleaning device, a substrate moving device 3 that moves the substrate 1 received from the substrate transfer device 2, and the front side of the side edge of the substrate 1. And a cleaning mechanism 4 that cleans cleaning surfaces (surfaces that need to be cleaned) 1a and 1b (see FIGS. 4 and 5) respectively located on the back side and the back side. These are arranged on the base 5.
- the substrate 1 that has been cleaned is unloaded from the substrate cleaning apparatus by a substrate transport apparatus (not shown) similar to the substrate transport apparatus 2 provided in the ACF sticking apparatus (not shown), and the ACF sticking apparatus. It is carried into the device.
- the substrate transport device 2 includes a fork 6 including a pair of support arms 6a and 6a on which the substrate 1 is placed, and a drive mechanism 7 that moves the fork 6 in the substrate transport direction (X direction).
- the drive mechanism 7 includes a rail 7a that guides the fork 6, and a feed screw mechanism 7b that moves the fork 6 by being driven by a motor 7c.
- the substrate moving device 3 translates the substrate holding mechanism 8 that holds the substantial center of the substrate 1, the substrate holding mechanism 8 in the X-axis direction and the Y-axis direction orthogonal to the X-axis direction, and the Z-axis It has a moving / rotating table 9 that rotates as a center.
- the substrate moving device 3 uses the moving / rotating table 9 to place one end in the longitudinal direction (X-axis direction) of the cleaning surface located on the front side and the back side of the side edge of the substrate 1 of the cleaning mechanism 4. Position in the cleaning unit 10.
- the substrate moving device 3 moves the substrate 1 in the longitudinal direction of the side edge by the moving / rotating table 9.
- the cleaning unit 10 of the cleaning mechanism 4 cleans the cleaning surface from one end to the other end of the cleaning surface.
- the cleaning unit 10 of the cleaning mechanism 4 includes pressing members 11a and 11b (first and second pressing members) as shown in FIGS.
- the pressing member 11a faces the front-side cleaning surface 1a of the side edge of the substrate 1 held by the substrate holding mechanism 8, and the pressing member 11b faces the rear-side cleaning surface 1b.
- the pressing member 11a is configured to press the cleaning tape 12 against the cleaning surface 1a.
- the pressing member 11b is configured to press the cleaning tape 12 against the cleaning surface 1b.
- the electrode t of the substrate 1 is disposed on the cleaning surface 1a on the front side of the substrate 1 (see FIG. 4).
- Each of the pressing members 11a and 11b has a protrusion 13a extending on a facing surface (a surface in contact with the cleaning tape 12) 13 facing the substrate 1 in a direction (Y-axis direction) orthogonal to the longitudinal direction of the side edge portion of the substrate 1. (See FIG. 4).
- the protrusions 13 a lock the cleaning tape 12 so that the cleaning tape 12 does not move in the longitudinal direction together with the substrate 1 when the substrate 1 moves in the longitudinal direction (X-axis direction) of the side edge portion. It is configured.
- Each of the pressing members 11 a and 11 b includes an inclined guide surface 14 that guides the cleaning tape 12 to the facing surface 13.
- the pressing members 11a and 11b are preferably made of a material such as polyacetal (POM) that has excellent chemical resistance and sliding properties.
- POM polyacetal
- the cleaning tape feeding mechanism 15 is a mechanism that intermittently moves the cleaning tape 12 between the pressing member 11a and the cleaning surface 1a and between the pressing member 11b and the cleaning surface 1b.
- the cleaning tape feeding mechanism 15 is a part of a device for collecting the cleaning tape 12 from a supply reel 16 around which the cleaning tape 12 is wound. It is also a mechanism for feeding the cleaning tape 12 toward the collection reel 20 that winds and collects the 12.
- the cleaning tape feeding mechanism 15 is configured to feed the cleaning tape 12 in a direction orthogonal to the longitudinal direction of the side edge portion of the substrate 1.
- the cleaning tape feeding mechanism 15 has a cleaning tape driving device 17.
- the cleaning tape driving device 17 includes a driving roller 17a that drives the cleaning tape 12, and a pinch roller 17b that presses the cleaning tape 12 against the driving roller 17a.
- the cleaning tape drive device 17 pulls out the cleaning tape 12 from the supply reel 16 before the cleaning is started, and moves the cleaning tape 12 by a predetermined movement amount (feed amount).
- the cleaning tape feeding mechanism 15 also passes from the supply reel 16 between the pressing member 11a and the cleaning surface 1a, between the pressing member 11b and the cleaning surface 1b, and reaches the recovery reel 20 of the cleaning tape 12. It has a tape path forming member 18 for forming a tape path.
- the tape path forming member 18 is composed of a plurality of guide rollers 18a to 18h.
- the tape path forming member 18 has the cleaning tape 12 with one wiping surface 12 a (first wiping surface) on the cleaning surface 1 a on the front side of the side edge of the substrate 1.
- a path (first path) is formed that passes between the pressing member 11a and the cleaning surface 1a in a direction from the substrate center side end 11aa of the pressing member 11a to the counter substrate center side end 11ab.
- the tape path forming member 18 is configured so that the cleaning tape 12 (strictly the portion of the cleaning tape 12) after passing between the pressing member 11a and the cleaning surface 1a is replaced with the other wiping surface.
- a loop path 19 that loops so that 12b faces the back side of the substrate 1 is formed. Further, the tape path forming member 18 is configured such that the cleaning tape 12 after being looped (strictly, the portion of the cleaning tape 12) is formed between the pressing member 11b and the cleaning surface 1b with the wiping surface 12b facing the cleaning surface 1b. A path (third path) is formed that passes the gap in the direction from the substrate center side end 11ba of the pressing member 11b to the counter substrate center side end 11bb.
- the cleaning tape 12 (strictly, the portion of the cleaning tape 12) that has passed between the pressing member 11b and the cleaning surface 1b finally reaches the collection reel 20.
- the tape path forming member 18 is connected between the pressing member 11b and the cleaning surface 1b.
- a path (fourth path) that bypasses the loop path 19 and reaches the recovery reel 20 is formed by passing the side of the cleaning tape in the width direction. Thereby, the intersection of the tape paths of the cleaning tape 12 is avoided.
- the tape path forming member 18 moves the tape path 19 from the supply reel 16 to the side in the cleaning tape width direction.
- a route (fifth route) that bypasses the loop route 19 and reaches between the pressing member 11a and the cleaning surface 1a is formed. Thereby, the intersection of the tape paths of the cleaning tape 12 is avoided.
- the supply reel 16, the cleaning tape driving device 17, the pressing members 11 a and 11 b, the tape path forming member 18 (a plurality of guide rollers 18 a to 18 h), and the collection reel 20 are provided on the unit frame 22.
- One cleaning unit 21 is configured.
- the cleaning unit 21 is configured to be detachably mounted on the main body 4a of the cleaning mechanism 4 provided on the base 5, as shown in FIG. 7 as viewed in the direction of arrow A in FIG. 1 or FIG. Yes (configured like a cassette).
- the main body 4a is provided with a unit fixing member 23 for holding the unit frame 22 for fixing the cleaning unit 21 at a predetermined position of the main body 4a.
- the supply reel 16 and the collection reel 20 are provided in parallel so that the respective rotation center lines substantially coincide.
- the term “the rotation center lines substantially coincide” means that the rotation center lines of the supply reel 16 and the recovery reel 20 are on the same straight line or compared with the radius of one reel. Means parallel with a small gap.
- the term is not limited to a common shaft supporting the two reels 16 and 20. Further, this term is not limited to the case where the rotation directions of the two reels 16 and 20 are the same.
- the cleaning unit 21 has an interlocking mechanism 24 that operates the cleaning tape driving device 17 and the recovery reel 20 in synchronization.
- the interlocking mechanism 24 is driven by a drive cylinder 25 provided in the main body 4a of the cleaning mechanism 4.
- the interlocking mechanism 24 has a link mechanism 30 including an L-shaped swing lever 26 having a vertical arm 26a and a horizontal arm 26b.
- the swing lever 26 is incorporated in the link mechanism 30 so as to be freely swingable about the rotation center line of the recovery reel 20.
- the swing lever 26 swings when the tip of the vertical arm 26 a is moved by the drive cylinder 25.
- a spring 27 that urges the tip of the vertical arm 26 a toward the tip 25 a of the piston rod is incorporated in the link mechanism 30.
- the spring 27 maintains the contact between the tip of the vertical arm 26a and the tip 25a of the piston rod.
- the horizontal arm 26 b of the swing lever 26 is connected to the tip of the feed arm 29 via the link 28 at the tip.
- the feed arm 29 is incorporated in the link mechanism 30 so as to be freely swingable about the rotation center line of the drive roller 17a of the cleaning tape drive device 17.
- the link mechanism 30 also has a recovery arm 31.
- the collection arm 31 is incorporated in the link mechanism 30 so as to be freely swingable about the rotation center line of the collection reel 20. Further, the recovery arm 31 is connected to the horizontal arm 26b of the swing lever 26 via a spring 32 at the tip thereof. Further, the recovery arm 31 is connected to the recovery reel 20 via a ratchet mechanism 33. Similarly, the feed arm 29 is connected to the drive roller 17a via a ratchet mechanism 34.
- the piston rod of the drive cylinder 25 is advanced to swing the swing lever 26 counterclockwise.
- the pressing members 11 a and 11 b are attached to movable bodies 36 a and 36 b that freely move in the Z-axis direction along guide rails 35 provided on the unit frame 22 via attachment blocks 37 a and 37 b. It is fixed.
- a spring 38 is disposed between the mounting blocks 37a and 37b. Further, stoppers 39a and 39b are provided to prevent the movable bodies 36a and 36b from falling off the guide rail 35.
- the movable bodies 36a and 36b include operation levers 40a and 40b extending through the unit frame 22. These movable bodies 36a and 36b are driven by operating the front ends of the operation levers 40a and 40b by the front ends 42a and 42b of the piston rods of the drive cylinders 41a and 41b provided in the main body 4a of the cleaning mechanism 4.
- the drive cylinders 41a and 41b operate the operation levers 40a and 40b, the force by which the pressing member 11a presses the cleaning tape 12 against the cleaning surface 1a and the force by which the pressing member 11b presses the cleaning tape 12 against the cleaning surface 1b are adjusted. Is done.
- the drive cylinders 41a and 41b are controlled by the same control, the pressing member 11a presses the cleaning surface 1a via the cleaning tape 12, and the pressing member 11b presses the cleaning surface 1b via the cleaning tape 12. Power is equal.
- the substrate 1 is moved in the longitudinal direction of the side edge by the substrate moving device 3 while maintaining the same pressing force in this way, the cleaning surfaces 1a and 1b are equally cleaned by the cleaning tape 12.
- the pressing members 11a and 11b are preferably in contact with the side edges of the substrate 1 through the cleaning tape 12 during the movement of the side edges of the substrate 1 in the longitudinal direction by the drive cylinders 41a and 41b and the spring 38. Can continue.
- a volatile cleaning agent such as ethanol or isopropyl alcohol is discharged to the portion of the cleaning tape 12 upstream of the guide surfaces 14 (see FIG. 4) of the pressing members 11a and 11b.
- Cleaning agent discharge nozzles 43a and 43b are provided.
- the cleaning agent is sent from the tank (not shown) to the cleaning agent discharge nozzles 43a and 43b via a pipe (not shown) by a pump (not shown) immediately before the cleaning tape 12 is moved. It is discharged toward the cleaning tape 12 from the agent discharge nozzles 43a and 43b.
- the color of the portion 47 of the cleaning tape 12 from which the cleaning agent has been discharged changes.
- Color detection sensors 44a and 44b for detecting the color of the cleaning tape 12 are provided at positions where the color of the portion 47 of the cleaning tape 12 from which the cleaning agent has been discharged can be detected.
- a dirt detection sensor 45 for detecting dirt on the cleaning tape 12 is disposed between the guide rollers 18d and 18e forming the loop path 19. That is, the dirt detection sensor 45 passes through between the pressing member 11a and the cleaning surface 1a of the substrate 1 and before wiping the cleaning tape 12 between the pressing member 11b and the cleaning surface 1b. Detects dirt.
- Control device 46 is arranged in the base 5.
- the control device 46 is configured to control the substrate transfer device 2, the substrate moving device 3, the drive cylinders 25, 41 a and 41 b of the cleaning mechanism 4, and a cleaning agent pump (not shown).
- the control device 46 confirms the discharge amount of the cleaning agent to the cleaning tape 12 based on the detection signals of the color detection sensors 44a and 44b. And the control apparatus 46 adjusts the discharge amount of a cleaning agent by controlling a pump (not shown) based on a confirmation result.
- control device 46 determines whether or not the cleaning tape 12 is dirty more than a predetermined level based on the detection signal of the dirt detection sensor 45. If the contamination is greater than or equal to a predetermined level, the control device 46 causes the drive cylinder 25 to skip a portion of the wiping surface 12b of the cleaning tape 12 where the predetermined level or higher contamination is detected skipping between the pressing member 11b and the cleaning surface 1b. To control. Furthermore, the control device 46 is configured to notify a warning when the skip execution frequency (for example, the number of skip executions per specified time) exceeds a predetermined frequency.
- the skip execution frequency for example, the number of skip executions per specified time
- the substrate 1 is carried into the substrate cleaning device by the substrate transfer device 2 and set on the substrate holding mechanism 8 of the substrate moving device 3. Then, the substrate moving device 3 positions the side edge portion (one end in the longitudinal direction of the cleaning surface) of the substrate 1 between the pressing members 11a and 11b (step S1). At this time, the pressing members 11 a and 11 b are separated by a distance exceeding the thickness of the side edge portion of the substrate 1.
- a predetermined amount of cleaning agent is discharged from the cleaning agent discharge nozzles 43a and 43b onto the cleaning tape 12. (Step S2). After the cleaning agent is discharged, the portion 47 of the cleaning tape 12 from which the cleaning agent has been discharged is detected by the color detection sensors 44a and 44b, and it is confirmed that a predetermined amount of the cleaning agent has been discharged to the cleaning tape 12.
- the cleaning tape 12 is moved by a predetermined feed amount by the drive cylinder 25. Thereby, the part of the cleaning tape 12 from which the cleaning agent has been discharged is disposed between the pressing member 11a and the cleaning surface 1a and between the pressing member 11b and the cleaning surface 1b (step S3).
- step S4 It is confirmed that the positioning of the substrate 1 and the movement of the cleaning tape 12 have been completed (step S4).
- the cleaning tape 12 is pressed against the side edge of the substrate 1 by the pressing members 11a and 11b by the drive cylinders 41a and 41b.
- the wiping surface 12a of the cleaning tape 12 is maintained in contact with the front cleaning surface 1a of the side edge of the substrate 1, and the wiping surface 12b is maintained in contact with the rear cleaning surface 1b (step). S5).
- the substrate 1 is moved in the longitudinal direction of the side edge by the substrate moving device 3.
- the wiping surface 12a of the cleaning tape 12 cleans the cleaning surface 1a from one end to the other end of the cleaning surface 1a located on the front side of the side edge portion of the substrate 1.
- the wiping surface 12b of the cleaning tape 12 cleans the cleaning surface 1b from one end to the other end of the cleaning surface 1b located on the back side of the side edge of the substrate 1 (step S6).
- the cleaning surfaces 1a and 1b on the side edge of the substrate 1 may be cleaned by reciprocating the substrate 1 at least once in the longitudinal direction.
- step S7 After completion of the cleaning, the pressing members 11a and 11b are moved away from the substrate 1 by the drive cylinders 41a and 41b (step S7).
- the substrate moving device 3 moves the substrate 1 so that the side edge portion of the substrate 1 comes out between the pressing members 11a and 11b. And the board
- step S16 It is determined whether or not the substrate 1 carried out by the substrate transfer device (not shown) of the ACF sticking device is the last substrate in the lot (step S16). If it is the last substrate, the process ends. If not, the process returns to step S1.
- step S16 When there are a plurality of side edges that need to be cleaned on the substrate 1 (for example, when the substrate is rectangular and the four side edges need to be cleaned), before the execution of step S16, all of the side edges are required. It is determined whether the side edge cleaning is complete. If completed, the process proceeds to step S16. Otherwise, the unmoved side edge is positioned between the pressing members 11a and 11b by the substrate moving device 3, and the process returns to step S2.
- step S10 contamination on the wiping surface 12b of the cleaning tape 12 is detected by the contamination detection sensor 45 (step S10).
- the data of the dirt detection result of the dirt detection sensor 45 is stored in a storage device (not shown) (step S11).
- This storage device stores the data of the dirt detection result of each of a plurality of portions of the cleaning tape 12 (a plurality of portions divided by a predetermined feed amount interval).
- the cleaning tape 12 positioned between the pressing member 11b and the cleaning surface 1b before the movement of the predetermined feeding amount of the cleaning tape 12 (before the start of step S3) and after the movement of the predetermined feeding amount of the cleaning tape 12 is executed. It is determined whether or not the portion is dirty above a specified level (step S12). This determination is performed on the basis of the dirt detection result data of each of the plurality of portions of the cleaning tape 12 stored in the storage device.
- step S4 If the dirt on the portion of the cleaning tape 12 located between the pressing member 11b and the cleaning surface 1b is not more than a specified level after the cleaning tape 12 is moved by a predetermined feed amount, the process proceeds to step S4.
- step S3 if the cleaning tape 12 located between the pressing member 11b and the cleaning surface 1b is more than specified after the movement of the cleaning tape 12 by a predetermined feed amount (after execution of step S3), the drive cylinder 25 Thus, the cleaning tape 12 is moved by a predetermined amount (step S13). Thereby, after execution of step S3, the portion of the cleaning tape 12 that is more than specified is not located between the pressing member 11b and the cleaning surface 1b (as a result, the portion of the cleaning tape 12 that is more than specified is not cleaned. (Skip between the pressing member 11b and the cleaning surface 1b).
- step S14 It is determined whether or not the skip execution frequency is equal to or higher than a specified frequency (for example, the number of skip executions per specified time) (step S14). If it is not equal to or higher than the prescribed frequency, the process returns to step S12. On the other hand, if the frequency is equal to or higher than the prescribed frequency, a warning is notified (step S15). By this warning notification, the operator can know the occurrence of the trouble with the cleaning tape 12. For example, the operator may have trouble that the cleaning agent is excessively discharged (excess cleaning agent discharged to the wiping surface 12a appears on the wiping surface 12b on the opposite side, and the cleaning agent that has appeared is detected as dirt. ). Further, the operator can know the occurrence of a trouble that the cleaning surface 1a of the substrate 1 before the cleaning of the substrate 1 is started is dirty.
- a specified frequency for example, the number of skip executions per specified time
- the cleaning tape 12 is disposed between the pressing member 11a and the cleaning surface 1a in a direction orthogonal to the longitudinal direction of the side edge portion of the substrate 1 with the wiping surface 12a facing the cleaning surface 1a.
- the cleaning tape 12 that has passed between the pressing member 11 a and the cleaning surface 1 a loops, and the wiping surface 12 b faces the back side of the substrate 1.
- the looped cleaning tape 12 passes between the pressing member 11b and the cleaning surface 1b in the same direction as the passing direction between the pressing member 11a and the cleaning surface 1a with the wiping surface 12b facing the cleaning surface 1b.
- the cleaning tape 12 cleans the cleaning surface 1a with the wiping surface 12a, and simultaneously cleans the cleaning surface 1b with the wiping surface 12b. Accordingly, the cleaning surfaces 1a and 1b can be appropriately cleaned by the cleaning tape 12 without twisting the cleaning tape 12 by 180 degrees. Moreover, since the two wiping surfaces 12a and 12b of the cleaning tape 12 are used, the consumption of the cleaning tape 12 can be suppressed, in other words, the replacement frequency of the cleaning tape 12 can be reduced. As a result, the cleaning cost of the substrate 1 is reduced.
- the supply reel 16, the cleaning tape driving device 17, the pressing members 11a and 11b, the tape path forming member 18 (a plurality of guide rollers 18a to 18h), and The collection reel 20 is provided on the unit frame 22 to constitute one cleaning unit 21.
- the cleaning unit 21 is detachably attached to the main body 4 a of the cleaning mechanism 4 provided on the base 5. Therefore, by replacing the cleaning unit 21 in which the unused cleaning tape 12 is set with the cleaning unit 21 mounted on the main body 4a of the cleaning mechanism 4 that has used up the cleaning tape, the unused cleaning tape 12 is used. Can be easily set in the cleaning mechanism 4 in a short time.
- the substrate cleaning apparatus is compared with the case where the respective rotation center lines do not substantially coincide with each other.
- the unit 21 is made compact.
- the part more than the specified dirt skips between the pressing member 11b and the cleaning surface 1b.
- the portion of the cleaning tape 12 that is more than specified is not used for cleaning the cleaning surface 1b.
- the occurrence of poor cleaning is suppressed.
- a warning is notified when the number of times the cleaning tape 12 skips between the pressing member 11b and the cleaning surface 1b exceeds a specified frequency. Thereby, the operator can know the occurrence of the trouble of the cleaning tape 12.
- the side edge of the substrate 1 is 2 from another viewpoint. It is clamped by the two pressing members 11a and 11b. Therefore, it is not necessary for the substrate moving device 3 to support the side edge portion of the substrate 1. That is, the substrate 1 is supported in a stable posture by the substrate moving device 3 supporting the substantial center portion and the side edge portions being supported by the two pressing members 11a and 11b. Thereby, the board
- the cleaning mechanism 4 is configured to send the cleaning tape 12 in a direction orthogonal to the moving direction of the substrate 1, that is, the radial direction of the two reels 16 and 20 is orthogonal to the moving direction of the substrate 1.
- the cleaning unit 21 since the cleaning unit 21 is provided, the size of the substrate 1 in the moving direction is small and compact.
- each of the pressing members 11a and 11b is provided with a protrusion 13a on an opposing surface (a surface in contact with the cleaning tape 12) 13 facing the substrate 1, and the cleaning tape 12 along with the substrate 1 in the longitudinal direction of the side edge portion.
- the cleaning tape 12 is locked so as not to move. Thereby, even if the moving speed of the board
- the substrate cleaning apparatus according to the first embodiment of the present invention has been described above.
- the substrate cleaning apparatus according to the present embodiment can be variously modified as described later or in addition to the following. Will be apparent to those skilled in the art.
- the drive cylinder 25 that drives the recovery reel 20 and the cleaning tape drive device 17 may be a motor.
- the motor drives the recovery reel 20 and the cleaning tape driving device 17 via a gear or a belt.
- the motor is preferably a stepping motor whose rotation amount can be controlled.
- the direction in which the cleaning tape 12 passes between the pressing members 11 a and 11 b and the cleaning surfaces 1 a and 1 b is the substrate 1.
- This is a direction orthogonal to the longitudinal direction of the side edge portion (the moving direction of the substrate 1), but a different direction is also possible.
- the substrate cleaning apparatus can be configured such that the cleaning tape 12 passes between the pressing members 11a and 11b and the cleaning surfaces 1a and 1b in the longitudinal direction of the side edge of the substrate 1.
- the direction in which the cleaning tape 12 passes between the pressing member 11a and the cleaning surface 1a, the pressing member 11b, and the cleaning surface 1b The direction of passing between the two is the same, but the two passing directions may not be the same. However, the two passing directions are preferably the same direction. The reason is that, for example, as shown in FIG. 2, in the cleaning tape 12 looped by the loop path 19, the moving direction of the cleaning tape 12 at the start of the loop and the moving direction at the end of the loop are substantially the same direction. .
- the substrate cleaning apparatus particularly the cleaning unit 21 becomes large. Therefore, it is preferable that the two passing directions be the same because the entire tape path including the loop path 19 can be shortened, that is, the cleaning unit 21 can be made compact.
- the cleaning of the cleaning surface 1a by the wiping surface 12a of the cleaning tape 12 and the cleaning of the cleaning surface 1b by the wiping surface 12b are performed simultaneously.
- the cleaning by the wiping surface 12a and the cleaning by the wiping surface 12b may not be performed simultaneously.
- FIG. 9 shows a substrate cleaning apparatus that has been modified to enable this.
- the same components as those of the first embodiment are denoted by the same reference numerals. Also, differences from the substrate cleaning apparatus according to the first embodiment will be mainly described.
- the cleaning tape 12 passes between the pressing member 11a and the cleaning surface located on the front side of the side edge of the substrate 1, and then is folded back by the guide roller 18h. 11b and a tape path formed so as to pass between the cleaning surface located on the back side of the side edge portion. That is, the two cleaning surfaces are simultaneously cleaned by different portions of one wiping surface of the cleaning tape 12.
- the wiping surface portion that cleans the cleaning surface on the front side of the side edge portion of the substrate 1 is the cleaning surface on the back side of the pressing member 11b and the side edge portion.
- the cleaning tape is fed so as to skip between the two (the same part of the wiping surface is configured not to clean the two cleaning surfaces).
- the substrate cleaning apparatus further allows the recovery reel 20 collected by winding the cleaning tape 12 used only on one wiping surface to be used as the supply reel 16, and after only one wiping surface is used for cleaning.
- the other wiping surface is configured to be used for cleaning.
- the cleaning mechanism 4 is configured to drive the recovery reel 20 so that the recovery reel 20 winds the cleaning tape 12 with the wiping surface used for cleaning facing the center of the reel. Yes.
- the cleaning mechanism 4 is configured to support the supply reel 16 so as to freely rotate in both directions.
- the collection reel 20 is configured to be usable as the supply reel 16. Thereby, according to the following procedures, both wiping surfaces of the cleaning tape 12 can be used for cleaning.
- the collection reel 20 winds and collects the cleaning tape 12 used for cleaning only one wiping surface with the wiping surface used for cleaning facing the center of the reel.
- the recovery reel 20 that has completed the recovery of the cleaning tape 12 is reversed and set as the supply reel 16 in the cleaning mechanism 4.
- the cleaning tape 12 around which the supply reel 16 (collection reel 20) is wound is set on the tape path forming member 18 so that the unused wiping surface faces the front side and the back side of the side edge of the substrate 1. Is done.
- the two cleaning surfaces 1a and 1b are cleaned using only one wiping surface of the cleaning tape 12, the two wiping surfaces 12b are used, and then the two cleaning surfaces are used. 1a and 1b can be washed.
- the substrate 1 moves in the longitudinal direction of the side edge during cleaning, but the cleaning tape 12 extends in the longitudinal direction of the side edge of the substrate 1. You may move in the direction.
- the substrate cleaning apparatus is provided with a cleaning unit moving apparatus 50 that moves the cleaning unit 21 in the longitudinal direction of the side edge of the substrate 1.
- the cleaning unit moving device 50 moves the cleaning unit 21 in the longitudinal direction of the side edge of the substrate 1
- the cleaning tape 12 can move in the longitudinal direction of the side edge.
- the cleaning unit moving device 50 is preferably configured to move the cleaning unit 21 to which the cleaning unit 21 is detachably attached.
- the rotation center lines of the two reels do not substantially coincide with each other and the rotation center line extends in the direction in which the rotation center lines extend (the movement direction of the cleaning unit 21), a part of the rear reel is on the near side.
- the case where it is partially exposed from the outer periphery of the reel will be given (the diameter of the front reel is equal to or larger than the diameter of the rear reel).
- the cleaning unit 21 becomes relatively large due to the presence of the exposed portion compared to the case where the rotation center line substantially coincides and the rear reel is completely hidden by the front reel. Rigidity is relatively reduced.
- the reel and the member that supports the reel are likely to be shaken during the movement of the cleaning unit 21, and for example, vibration is likely to occur. As a result, it becomes difficult to move the cleaning unit 21 at high speed.
- the cleaning unit 21 is moved in the longitudinal direction of the side edge of the substrate 1 by the cleaning unit moving device 50 and the supply reel 16 and the recovery reel 20 are parallel to each other in a state where the respective rotation center lines substantially coincide with each other. Accordingly, a compact cleaning unit 21 that can move at a high speed in the longitudinal direction of the side edge portion of the substrate 1, for example, at a speed of 300 to 500 mm / s is realized. Moreover, since the washing
- the tape path of the cleaning tape 12 is the tape path.
- a short simple route is preferred.
- the number of tape path forming members 18, that is, guide rollers is reduced, and the cleaning unit 21 can be reduced in weight.
- a tape path shown in FIG. 9 is a simple tape path that can move the cleaning unit 21 at high speed.
- the cleaning tape 12 passes between the pressing member 11a and the cleaning surface located on the front side of the side edge of the substrate 1, and then is folded back by the guide roller 18h, and then the pressing member 11b. And the cleaning surface located on the back side of the side edge portion (the tape path is configured so that two cleaning surfaces are simultaneously cleaned by different portions of one wiping surface of the cleaning tape 12). Formed).
- the cleaning unit 21 is reduced in weight and can move at high speed. *
- the large substrate is cleaned in such a short time by the cleaning unit 21 without using a large substrate moving device for moving the large substrate in the longitudinal direction of the side edge portion. As a result, the cleaning cost of the large substrate is suppressed.
- both the substrate 1 and the cleaning tape 12 may move relatively in the longitudinal direction of the side edge of the substrate.
- the substrate cleaning apparatus has both the substrate moving apparatus 3 and the cleaning unit moving apparatus 50 shown in FIG.
- the substrate moving device 3 moves the substrate 1 to one side in the longitudinal direction
- the cleaning unit moving device 50 moves the cleaning unit 21 to the other side in the longitudinal direction, so that cleaning can be performed at a higher speed.
- the cleaning tape 12 is recovered by the recovery reel 20 winding up.
- the substrate cleaning apparatus of the present embodiment as shown in FIG. 10, instead of the recovery reel 20, the cleaning tape recovery apparatus 48 that recovers the cleaning tape 12 and the cleaning recovered by the cleaning tape recovery apparatus 48.
- the cleaning tape collection device 48 includes a collection roller 48a that pulls the cleaning tape 12, and a pinch roller 48b that presses the cleaning tape 12 against the collection roller 48a.
- the collection roller 48a and the pinch roller 48b are provided on the unit frame 22 of the cleaning unit 21 (incorporated into the cleaning unit 21).
- the collection roller 48a is configured to rotate in synchronization with the drive roller 17a.
- the collection box 49 is detachably installed on the main body 4a of the cleaning mechanism 4.
- the cleaning tape 12 can be recovered without using the recovery reel 20.
- the cleaning tape 12 is passed between the pressing member 11a and the cleaning surface 1a by the tape path forming member 18 as shown in FIG. 1 or FIG. , Loop in the space between the substrate 1 and the supply reel 16.
- the substrate cleaning apparatus according to the present embodiment supplies the cleaning tape 12 that has passed between the pressing member 11a and the cleaning surface 1a by the tape path forming member 18 (a plurality of guide rollers 18a to 18h). Loop along the circumference of the reel 16 (outside in the radial direction).
- the distance from the pressing member 11a and the cleaning surface 1a to the guide roller 18d is longer than that in the first embodiment. Become. Accordingly, the cleaning agent is sufficiently evaporated from the cleaning tape 12 before the cleaning tape 12 that has cleaned the cleaning surface 1a by the wiping surface 12a reaches the guide roller 18d. As a result, the dirt on the wiping surface 12a of the cleaning tape 12 is suppressed from being transferred to the guide rollers 18d to 18g together with the cleaning agent.
- the cleaning tape 12 passes between the pressing member 11a and the cleaning surface 1a in the direction approaching the supply reel 20, and the pressing member 11b. And the cleaning surface 1b also pass in the direction approaching the supply reel 20.
- the cleaning tape 12 passes between the pressing member 11a and the cleaning surface 1a in the direction away from the supply reel 20, as shown in FIG. 12, and the pressing member 11b. And the cleaning surface 1b also pass in a direction away from the supply reel 20.
- FIG. 12A shows an example in which the supply reel 16 and the recovery reel 20 are arranged in parallel so that the respective rotation center lines substantially coincide with each other
- FIG. 12B shows the supply reel.
- 16 and the collection reel 20 are arranged on substantially the same plane.
- the guide rollers 18c to 18f forming the loop path 19 guide the cleaning tape 12 without cleaning the cleaning surface 1a and touching the dirty wiping surface 12a. Can be looped. As a result, contamination of the plurality of guide rollers 18c to 18f is suppressed.
- the present invention is not limited to the side edge portion of the substrate, and it is possible to clean the cleaning surfaces respectively positioned on the front side and the back side of other portions appropriately and at high speed with the two wiping surfaces of the cleaning tape. Is clear. Therefore, the present invention can be suitably used in the field where the substrate needs to be cleaned, for example, in the field of component mounting where the component is mounted on the substrate.
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Abstract
Description
基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材と、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材と、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材と、
テープ経路に洗浄テープを供給するテープ供給装置と、
テープ経路から洗浄テープを回収するテープ回収装置と、
洗浄テープを駆動するテープ駆動装置と、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置と、
洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させる移動装置とを有し、
テープ経路が、
洗浄テープを、第1の払拭面が第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過させる第1の経路と、
第1の経路を通過した後の洗浄テープを、第2の払拭面が基板の裏側に対向するようにループさせる第2の経路と、
第2の経路を通過した後の洗浄テープを、第1の経路における洗浄テープの通過方向と同一方向に、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過させる第3の経路とを含んでいる、基板洗浄装置を提供する。
基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材と、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材と、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材と、
テープ経路に洗浄テープを供給するテープ供給装置と、
テープ経路から洗浄テープを回収するテープ回収装置と、
洗浄テープを駆動するテープ駆動装置と、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置と、
洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させる移動装置とを有し、
テープ経路が、
洗浄テープを、第1の払拭面が第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過させる第1の経路と、
第1の経路を通過した後の洗浄テープを、第2の払拭面が基板の裏側に対向するようにループさせる第2の経路と、
第2の経路を通過した後の洗浄テープを、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過させる第3の経路とを含み、
テープ供給装置が、洗浄テープを巻回した供給リールを有し、
テープ回収装置が、洗浄テープを巻き取って回収する回収リールを有し、
供給リールと回収リールとが並列する、基板洗浄装置を提供する。
第3の経路が、テープ経路形成部材により、第1の経路における洗浄テープの通過方向と同一方向に、洗浄テープが通過するように形成されている、第2の態様に記載の基板洗浄装置を提供する。
テープ経路形成部材が、第3の経路から第2の経路の洗浄テープ幅方向の横を通過することにより該第2の経路を迂回してテープ回収装置に至る第4の経路を含むテープ経路を形成する、または、テープ供給装置から第2の経路の洗浄テープ幅方向の横を通過することにより該第2の経路を迂回して第1の経路に至る第5の経路を含むテープ経路を形成する、第1の態様から第3の態様のいずれか1つに記載の基板洗浄装置を提供する。
テープ供給装置、第1および第2の押圧部材、およびテープ経路形成部材を少なくとも含み、基板洗浄装置の本体に着脱可能に装着される洗浄ユニットを有し、
テープ供給装置を駆動する駆動装置と、第1および第2の押圧部材を駆動する駆動装置とを基板洗浄装置の本体に有する、第1の態様から第3の態様のいずれか1つに記載の基板洗浄装置を提供する。
第2の経路が、テープ経路形成部材により、洗浄テープをテープ供給装置の周囲に沿ってループさせるように形成されている、第1の態様から第3の態様のいずれか1つに記載の基板洗浄装置を提供する。
第1の経路が、テープ経路形成部材により、第1の押圧部材と第1の洗浄面との間をテープ供給装置から離れる方向に洗浄テープが通過するように形成され、
第2の経路が、テープ経路形成部材により、第1の経路を通過した洗浄テープをテープ供給装置の周囲に沿ってループさせるように形成され、
第3の経路が、テープ経路形成部材により、第1の経路における洗浄テープの通過方向と同一方向に、洗浄テープが通過するように形成されている、第1の態様から第3の態様のいずれか1つに記載の基板洗浄装置を提供する。
テープ駆動装置による洗浄テープの送り量を制御する制御装置と、
第1の押圧部材と第1の洗浄面との間を通過した後の洗浄テープの第2の払拭面の汚れを検出する汚れ検出装置とを有し、
制御装置が、汚れ検出装置によって規定以上の汚れが検出された第2の払拭面の部分が第2の押圧部材と第2の洗浄面との間をスキップするように、洗浄テープの送り量を制御する、第1の態様から第3の態様のいずれか1つに記載の基板洗浄装置を提供する。
制御装置によるスキップの実行頻度が規定の頻度以上になると、警告を通知する、第8の態様に記載の基板洗浄装置を提供する。
基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えて洗浄剤が含浸された布製の洗浄テープによって洗浄する基板洗浄方法であって、
第1の押圧部材によって洗浄テープを第1の洗浄面に押し付けた状態、且つ第2の押圧部材によって洗浄テープを第2の洗浄面に押し付けた状態を維持しつつ、洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させることによって第1および第2の洗浄面を洗浄し、
洗浄テープを、
第1の払拭面が基板の第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過し、
次に第2の払拭面が基板の裏側に対向するようにループし、
続いて第1の押圧部材と第1の洗浄面との間における洗浄テープの通過方向と同一方向に、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過するように駆動する、基板洗浄方法を提供する。
さらに、本発明に係る別の基板洗浄装置は、
基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材、
テープ経路に洗浄テープを供給するテープ供給装置、
テープ経路から洗浄テープを回収するテープ回収装置、
洗浄テープを駆動するテープ駆動装置、および、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置を含む洗浄ユニットと、
洗浄ユニットを基板の側縁部の長手方向に移動させる洗浄ユニット移動装置とを有し、
テープ供給装置が、洗浄テープを巻回した供給リールを有し、
テープ回収装置が、洗浄テープを巻き取って回収する回収リールを有し、
供給リールと回収リールとが並列する、基板洗浄装置を提供する。
洗浄ユニット移動装置が、着脱可能に装着した洗浄ユニットを移動させるように構成されている、第11の態様に記載の基板洗浄装置を提供する。
まず、本発明の第1の実施形態に係る基板洗浄装置を、図1~図8を参照しながら説明する。図1に示す基板洗浄装置は、基板1を基板洗浄装置に搬入する基板搬送装置2と、基板搬送装置2から受け取った基板1を移動させる基板移動装置3と、基板1の側縁部の表側と裏側とにそれぞれ位置する洗浄面(洗浄される必要がある面)1a,1b(図4、図5参照)を洗浄する洗浄機構4とを有する。これらは、基台5上に配設されている。なお、洗浄が完了した基板1は、ACF貼付装置(図示せず)に設けられた、基板搬送装置2と類似する基板搬送装置(図示せず)により、基板洗浄装置から搬出され、該ACF貼付装置に搬入される。
次に、本発明の第2の実施形態に係る基板洗浄装置を、図10を参照しながら説明する。
本発明の第3の実施形態に係る基板洗浄装置を、図11を参照しながら説明する。
本発明の第4の実施形態に係る基板洗浄装置を、図12を参照しながら説明する。なお、本実施形態は、第3の実施形態と類似する。
Claims (12)
- 基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材と、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材と、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材と、
テープ経路に洗浄テープを供給するテープ供給装置と、
テープ経路から洗浄テープを回収するテープ回収装置と、
洗浄テープを駆動するテープ駆動装置と、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置と、
洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させる移動装置とを有し、
テープ経路が、
洗浄テープを、第1の払拭面が第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過させる第1の経路と、
第1の経路を通過した後の洗浄テープを、第2の払拭面が基板の裏側に対向するようにループさせる第2の経路と、
第2の経路を通過した後の洗浄テープを、第1の経路における洗浄テープの通過方向と同一方向に、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過させる第3の経路とを含む基板洗浄装置。 - 基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材と、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材と、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材と、
テープ経路に洗浄テープを供給するテープ供給装置と、
テープ経路から洗浄テープを回収するテープ回収装置と、
洗浄テープを駆動するテープ駆動装置と、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置と、
洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させる移動装置とを有し、
テープ経路が、
洗浄テープを、第1の払拭面が第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過させる第1の経路と、
第1の経路を通過した後の洗浄テープを、第2の払拭面が基板の裏側に対向するようにループさせる第2の経路と、
第2の経路を通過した後の洗浄テープを、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過させる第3の経路とを含み、
テープ供給装置が、洗浄テープを巻回した供給リールを有し、
テープ回収装置が、洗浄テープを巻き取って回収する回収リールを有し、
供給リールと回収リールとが並列する基板洗浄装置。 - 第3の経路が、テープ経路形成部材により、第1の経路における洗浄テープの通過方向と同一方向に、洗浄テープが通過するように形成されている請求項2に記載の基板洗浄装置。
- テープ経路形成部材が、第3の経路から第2の経路の洗浄テープ幅方向の横を通過することにより該第2の経路を迂回してテープ回収装置に至る第4の経路を含むテープ経路を形成する、または、テープ供給装置から第2の経路の洗浄テープ幅方向の横を通過することにより該第2の経路を迂回して第1の経路に至る第5の経路を含むテープ経路を形成する請求項1から3のいずれか1項に記載の基板洗浄装置。
- テープ供給装置、第1および第2の押圧部材、およびテープ経路形成部材を少なくとも含み、基板洗浄装置の本体に着脱可能に装着される洗浄ユニットを有し、
テープ供給装置を駆動する駆動装置と、第1および第2の押圧部材を駆動する駆動装置とを基板洗浄装置の本体に有する請求項1から3のいずれか1項に記載の基板洗浄装置。 - 第2の経路が、テープ経路形成部材により、洗浄テープをテープ供給装置の周囲に沿ってループさせるように形成されている請求項1から3のいずれか1項に記載の基板洗浄装置。
- 第1の経路が、テープ経路形成部材により、第1の押圧部材と第1の洗浄面との間をテープ供給装置から離れる方向に洗浄テープが通過するように形成され、
第2の経路が、テープ経路形成部材により、第1の経路を通過した洗浄テープをテープ供給装置の周囲に沿ってループさせるように形成され、
第3の経路が、テープ経路形成部材により、第1の経路における洗浄テープの通過方向と同一方向に、洗浄テープが通過するように形成されている請求項1から3のいずれか1項に記載の基板洗浄装置。 - テープ駆動装置による洗浄テープの送り量を制御する制御装置と、
第1の押圧部材と第1の洗浄面との間を通過した後の洗浄テープの第2の払拭面の汚れを検出する汚れ検出装置とを有し、
制御装置が、汚れ検出装置によって規定以上の汚れが検出された第2の払拭面の部分が第2の押圧部材と第2の洗浄面との間をスキップするように、洗浄テープの送り量を制御する請求項1から3のいずれか1項に記載の基板洗浄装置。 - 制御装置によるスキップの実行頻度が規定の頻度以上になると、警告を通知する請求項8に記載の基板洗浄装置。
- 基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えて洗浄剤が含浸された布製の洗浄テープによって洗浄する基板洗浄方法であって、
第1の押圧部材によって洗浄テープを第1の洗浄面に押し付けた状態、且つ第2の押圧部材によって洗浄テープを第2の洗浄面に押し付けた状態を維持しつつ、洗浄テープと基板とを該基板の側縁部の長手方向に相対的に移動させることによって第1および第2の洗浄面を洗浄し、
洗浄テープを、
第1の払拭面が基板の第1の洗浄面に対向した状態で、第1の押圧部材と第1の洗浄面との間を、基板の側縁部の長手方向と直交する方向に通過し、
次に第2の払拭面が基板の裏側に対向するようにループし、
続いて第1の押圧部材と第1の洗浄面との間における洗浄テープの通過方向と同一方向に、第2の払拭面が第2の洗浄面に対向した状態で、第2の押圧部材と第2の洗浄面との間を通過するように駆動する基板洗浄方法。 - 基板の側縁部の表側に位置する第1の洗浄面と裏側に位置する第2の洗浄面とを、第1の払拭面と第2の払拭面とを備えた布製の洗浄テープによって洗浄する基板洗浄装置であって、
洗浄テープを第1の洗浄面に押し付ける第1の押圧部材、
洗浄テープを第2の洗浄面に押し付ける第2の押圧部材、
第1の押圧部材と第1の洗浄面との間と第2の押圧部材と第2の洗浄面との間とを通過する、洗浄テープのテープ経路を形成するテープ経路形成部材、
テープ経路に洗浄テープを供給するテープ供給装置、
テープ経路から洗浄テープを回収するテープ回収装置、
洗浄テープを駆動するテープ駆動装置、および、
洗浄テープに洗浄剤を吐出する洗浄剤吐出装置を含む洗浄ユニットと、
洗浄ユニットを基板の側縁部の長手方向に移動させる洗浄ユニット移動装置とを有し、
テープ供給装置が、洗浄テープを巻回した供給リールを有し、
テープ回収装置が、洗浄テープを巻き取って回収する回収リールを有し、
供給リールと回収リールとが並列する基板洗浄装置。 - 洗浄ユニット移動装置が、着脱可能に装着した洗浄ユニットを移動させるように構成されている請求項11に記載の基板洗浄装置。
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