WO2009154022A1 - 基板加工システム - Google Patents
基板加工システム Download PDFInfo
- Publication number
- WO2009154022A1 WO2009154022A1 PCT/JP2009/052946 JP2009052946W WO2009154022A1 WO 2009154022 A1 WO2009154022 A1 WO 2009154022A1 JP 2009052946 W JP2009052946 W JP 2009052946W WO 2009154022 A1 WO2009154022 A1 WO 2009154022A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- unit display
- display panel
- terminal
- scribe
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
- B28D1/22—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising
- B28D1/225—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles
- B28D1/226—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by cutting, e.g. incising for scoring or breaking, e.g. tiles with plural scoring tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0005—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing
- B28D5/0011—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing with preliminary treatment, e.g. weakening by scoring
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/03—Glass cutting tables; Apparatus for transporting or handling sheet glass during the cutting or breaking operations
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/02—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor
- C03B33/023—Cutting or splitting sheet glass or ribbons; Apparatus or machines therefor the sheet or ribbon being in a horizontal position
- C03B33/033—Apparatus for opening score lines in glass sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/07—Cutting armoured, multi-layered, coated or laminated, glass products
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B33/00—Severing cooled glass
- C03B33/10—Glass-cutting tools, e.g. scoring tools
- C03B33/105—Details of cutting or scoring means, e.g. tips
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2249/00—Aspects relating to conveying systems for the manufacture of fragile sheets
- B65G2249/04—Arrangements of vacuum systems or suction cups
Definitions
- the present invention relates to a substrate processing system that divides a mother substrate (also referred to as a bonded substrate or a bonded mother substrate) on which a plurality of unit display panels are formed, and takes out the unit display panels one by one.
- the substrate processing system of the present invention is used in a manufacturing process of a liquid crystal display panel or the like.
- a mother substrate for manufacturing a liquid crystal display panel includes a first substrate on which a plurality of color filters are patterned (also referred to as a CF side substrate), and a second substrate on which a plurality of TFTs and terminal regions are patterned (a substrate on the side). (Also referred to as a TFT side substrate) with a sealing material enclosing a liquid crystal interposed therebetween. At this time, the second substrate is bonded so that the substrate surface on which the TFT and the terminal region are formed becomes a bonding surface with the first substrate.
- the terminal area of the second substrate needs to be exposed because it is an area where the signal line is connected between the TFT and the external device. Therefore, when the mother substrate is divided for each unit display panel, the portion of the first substrate (CF side substrate) facing the terminal region is removed as an end material. Specifically, the width required to divide the second substrate side along the outer edge of the terminal area opposite to the side to which the TFT is connected, and to attach the signal line from the outer edge of the terminal area. The first substrate is cut at a position that is inside (terminal width). Thereby, the part of the first substrate facing the terminal area is cut off as an end material.
- a cutting method using a cutter wheel is used.
- a cutter wheel is pressed against each of the two substrates (CF side substrate and TFT side substrate) constituting the mother substrate, and a scribe groove is cut in each substrate.
- the mother substrate is completely divided for each unit display panel by applying force to break along the scribe groove (mechanical break) or by applying heated steam to break (steam break).
- Each divided unit display panel is transferred to a subsequent process by a carry-out robot (substrate carry-out device).
- a substrate processing system substrate cutting system
- a substrate processing method in which a series of substrate processing is performed simultaneously on two upper and lower surfaces of a mother substrate without reversing the substrate (Patent Document 1, Patent Document 2).
- a mother board is scribed simultaneously from two directions using a pair of upper and lower cutter wheels.
- two surfaces are simultaneously broken by a steam break device or a roller break device, and divided into unit display panels.
- the unit display panels thus formed are taken out one by one and sent to the subsequent process.
- a steam generator and a pusher are provided at the edge of a transformer hand (substrate unloading device) that takes out a liquid crystal display panel from a mother substrate, and secondary break is performed (see Patent Document 3).
- the steam generator and pusher of the transformer hand are operated to remove the liquid crystal display panel from the liquid crystal display panel. It is disclosed that the peripheral dummy glass is completely separated simultaneously from the upper and lower surfaces.
- liquid crystal display panels are required to have a larger screen, and accordingly, unit display panels are also required to have a larger area.
- unit display panels are also required to have a larger area.
- CF color filter
- TFT time division multiplexing
- terminal region the substrate layout is considered so that the edge material region formed between adjacent unit display panels is minimized.
- FIG. 18 and FIG. 19 are diagrams (plan view, front view, right side view) showing a substrate layout example of a mother substrate for a liquid crystal display panel in which the amount of offcuts generated is suppressed.
- the mother substrate has a structure in which a first substrate G1 (CF side substrate) and a second substrate G2 (TFT side substrate) are bonded together. In these examples, a total of eight unit display panels U are arranged on the mother substrate.
- the mother substrate of FIG. 18A is provided with a two-terminal panel in which terminal regions T are formed on the periphery of two adjacent sides.
- the mother substrate of FIG. 18B has a three-terminal panel in which terminal regions T are formed on the periphery of three sides.
- the mother board of FIG. 19 has a four-terminal panel in which terminal regions T are formed on the periphery of four sides. The number of sides on which the terminal region T is formed is selected according to the number of pixels included in the unit display panel U.
- the second substrate G2 (TFT side substrate) is arranged so that the unit display panels U are in direct contact with each other so that no end material is generated between the adjacent unit display panels U. is there. Therefore, for the second substrate G2, only the outer peripheral portion of the mother substrate is generated as an end material.
- the first substrate CF side substrate
- a region facing the terminal region T of the second substrate G2 is generated as an end material together with the outer peripheral portion of the mother substrate U.
- a portion that becomes an end material is indicated by hatching.
- FIG. 20 is a schematic diagram showing a part of a cross section of adjacent unit display panels.
- the unit display panels U1 and U2 are arranged so that the non-terminal surface L2 (the first substrate G1 and the second substrate G2 are on the same end surface) where the terminal region T is not provided in U2.
- a specific example of the boundary of the unit display panel having such a relationship is indicated by a mark “ ⁇ ” in FIG. 18 (which will be described later as called a specific boundary in this specification).
- two cut surfaces are formed by processing three scribe grooves at the boundary (specific boundary) between the unit display panel U1 and the unit display panel U2. That is, along the non-terminal surface L2 on the unit display panel U2 side, scribe grooves (second scribe grooves and third scribe grooves) are formed so that the end surfaces of the second substrate G2 and the first substrate G1 are aligned. It is formed.
- One cut surface by this scribe groove is called just cut surface Ca.
- the just cut surface Ca is a surface that completely separates the unit display panel U1 and the unit display panel U2.
- a first scribe groove is formed.
- the cut surface by the scribe groove is referred to as a terminal cut surface Cb.
- the terminal cut surface Cb is a cut surface that is divided to expose the terminal surface of the terminal region T.
- FIG. 21 is a diagram illustrating three types of separation states after the scribing process and the breaking process are performed on the unit display panel U1, the unit display panel U2, and the end material E illustrated in FIG.
- the end material E is completely separated from the unit display panels U1 and U2, and any unit display panels U1 and U2 are in a separated state as they are.
- the unit display panels U1 and U2 separated in this state are transferred to the subsequent process as they are.
- FIG. 21B shows a state in which the end material E is not separated from the unit display panel U2, is attached to the just cut surface Ca side, and only the unit display panel U1 is completely separated.
- FIG. 21C shows a state in which the end material E is not separated from the unit display panel U1, adheres to the terminal cut surface Cb side, and only the unit display panel U2 is completely separated.
- the unit display panel U2 is transferred to the subsequent process as a non-defective product.
- the unit display panel U1 is transferred to the subsequent process after an additional break process for separating the end material E is performed to make it non-defective. Become.
- the substrate processing system is adjusted so that the end material E is processed as completely as possible (FIG. 21 (a)).
- FIG. 21B a state of adhering to Ca
- FIG. 21C a state of adhering to the terminal cut surface Cb
- the first substrate G1 (CF side substrate) is processed, and then turned upside down to the second substrate G2 ( Processing is performed on the TFT side substrate).
- scribing with respect to the terminal cut surface Cb of the first substrate G1 is performed with a strong pressing force P1.
- substrate G1 is performed with the pressing force P2 weaker than P1.
- scribing with respect to the just cut surface Ca of the second substrate G2 is performed with a strong pressing force P1.
- the depth of the scribe groove is adjusted, and the end material E can be broken while being always attached to the just cut surface Ca side. As a result, the end material E can be efficiently removed only by preparing one type of break mechanism.
- the terminal width Wa is the width of the portion exposed as the terminal region.
- the terminal width Wa has been about 10 mm so far, but it is required to reduce this to about 1 mm to 3 mm.
- the dividing method (FIGS. 22 and 23) described in Patent Document 4 is used in which the scribe groove depth is adjusted in order to reliably separate the end materials. It can be considered to remove unnecessary end material afterwards.
- the terminal width Wa is reduced, it may not be possible to improve the quality even if this division method is adopted.
- the terminal region may be damaged.
- the unit display panel is generally taken out by pulling it up to the upper side of the mother substrate by the suction pad.
- a first object of the present invention is to provide a substrate processing system that can stably and reliably take out a unit display panel formed on a large-area mother substrate that is difficult to be inverted. Second, even if the terminal width of the terminal area of the unit display panel is narrowed, there is no defective product in which the end material covering the terminal area adheres to the terminal cut surface side. It is an object of the present invention to provide a substrate processing system which can be completely separated, or even if it cannot be completely separated, the edge material can be reliably removed later to make a good product.
- a third object of the present invention is to provide a substrate processing system capable of taking out a unit display panel arranged on a mother substrate so that a terminal region is not damaged.
- the mother substrate is divided and the unit display panel is taken out, even if the end material region cannot be completely separated from the unit display panel, the end material region is reliably separated by the additional break treatment.
- This is a substrate processing system.
- the mother substrate to be processed has a structure in which the first substrate and the second substrate are bonded together.
- a plurality of unit display panels each having the same shape and square shape are formed side by side so as to be adjacent to each other on the mother substrate.
- Each square unit display panel has a step formed by projecting the second substrate side more than the first substrate side on the periphery of one side, the periphery of two adjacent sides, or the periphery of three sides of the four sides.
- a terminal region is provided.
- a non-terminal surface in which the first substrate and the second substrate are the same end surface is formed on the remaining periphery where the terminal region is not provided.
- each unit display panel is arranged so that the terminal area of one unit display panel and the non-terminal surface of the other unit display panel are in contact with each other at the boundary with at least one of the adjacent unit display panels. It is. This boundary is called a “specific boundary” in order to distinguish it from other types of boundaries.
- the present invention divides the mother substrate on which the unit display panels are arranged in the above layout into unit display panels in a state where the second substrate is supported on the upper side and the first substrate is on the lower side.
- This is a substrate processing system to be taken out, and has the following configurations (a) to (e).
- a scribing device that performs scribing by pressing the first substrate and the second substrate from both sides in combination with the second cutter wheel.
- the first scribe groove is formed at the inner end of the portion of the first substrate facing the terminal area of the unit display panel on the side where the terminal area is in contact
- a second scribe groove is formed in the non-terminal surface on the second substrate side of the unit display panel on the side where the non-terminal surface is in contact
- the first scribe groove is formed in the non-terminal surface on the first substrate side.
- a scribing device controller for controlling the scribing device so as to form a groove and a third scribing groove shallower than the second scribing groove.
- the scribing device control unit controls the scribing device to scribe the mother substrate.
- the unit display panel on the side where the terminal area is in contact A first scribe groove is formed at the inner end of the portion of the first substrate facing the terminal region.
- a second scribe groove is formed on the non-terminal surface on the second substrate side of the unit display panel on the side where the non-terminal surface is in contact.
- a third scribe groove shallower than the first scribe groove and the second scribe groove is formed on the non-terminal surface on the first substrate side.
- the end material region adheres to the just cut surface side (position of the third scribe groove). In this way, the end material region can be easily and reliably separated by the subsequent break treatment. That is, even if the end material region cannot be completely separated, the end material region never adheres to the terminal cut surface side (the position of the first scribe groove) where separation becomes difficult even by the additional break treatment.
- the suction member is sucked onto the second substrate of the scribe-processed unit display panel and is taken out from the mother substrate.
- the unit display panel that is in contact with the terminal area is taken out preferentially over the unit display panel that is in contact with the non-terminal face. This priority order is applied to all unit display panels formed on the mother substrate.
- the unit display panel on the side where the terminal area is in contact with the terminal area is first pulled upward, so that it does not collide with the end material area, and unit display The panel can be removed without problems.
- the end material region is attached to the just cut surface side (position of the third scribe groove) of the adjacent unit display panel, or is completely separated from the unit display panels on both sides by vibration / impact at the time of separation. .
- the hook and pusher of the auxiliary break device attached to the panel carry-out device are operated.
- the hook and pusher of the auxiliary break device attached to the panel carry-out device are operated.
- the substrate processing system of the present invention even if the mother substrate has a large area, it is not necessary to invert the substrate, and the unit display panel can be taken out stably and reliably. Further, even if the terminal width of the terminal area of the unit display panel is narrowed, the end material area of the portion covering the terminal area is not attached to the terminal cut surface side, and the end material area is surely removed from the unit display panel. be able to. Further, all unit display panels arranged on the mother board do not collide with the end material region, and can be taken out without damaging the terminal region.
- the scribing device control unit first forms the first scribe groove and the second scribe groove by a combination of the first cutter wheel and the second cutter wheel, and then the backup roller and the second cutter wheel. You may make it perform scribe control which forms a 3rd scribe groove
- the pair of cutter wheels are not pressed in a state where they face each other straight up and down, but are pressed at positions separated by the length of the terminal width. There is almost no.
- the third scribe groove (just cut surface of the first substrate) is scribed in the second scribe process.
- a sealing material for bonding the upper and lower substrates is present in the vicinity of the position where the scribe groove is formed.
- a scribe groove is formed on the substrate by the first scribe, a compressive stress is generated in a region sandwiched between the scribe groove and the seal material due to the presence of the seal material.
- a third scribe groove is formed in the region where the compressive stress is generated.
- the third scribe groove is scribed under a compressive stress, but originally it is planned to scribe shallower than the first and second scribe grooves. Therefore, the first, second and third scribe grooves can be processed to have a preferable groove depth.
- the backup roller when forming the third scribe groove, may press-contact the adjacent position of the previously formed second scribe groove. Thereby, the third scribe groove can be formed while supporting the second substrate side with the backup roller without damaging the previously formed second scribe groove.
- a main break device that is installed between the scribe device and the panel carry-out device and that performs a break process in advance on the scribe-processed mother substrate before the break process by the auxiliary break device may be provided.
- the scribe groove can be extended deeply in advance by the main break device, and the end material region can be completely divided more reliably by using it together with the auxiliary break device.
- the main break device may be composed of a steam break device and a roller break device.
- the breaking device for the scribe grooves in two orthogonal directions can be made compact.
- FIG. 2 is a perspective view of the substrate processing system of FIG.
- FIG. 4 is a cross-sectional view taken along the line B-B ′ of FIG. 3.
- FIG. 4 is a sectional view taken along line C-C ′ in FIG. 3.
- FIG. 4 is a cross-sectional view taken along the line D-D ′ in FIG. 3.
- FIG. 4 is a cross-sectional view taken along line E-E ′ of FIG. 3.
- FIG. 4 is a cross-sectional view taken along the line F-F ′ in FIG. 3.
- the block diagram which shows the control system of the board
- the flowchart which shows the basic procedure of a scribe process The schematic diagram which shows the process of a scribe process.
- substrate (a 1 terminal panel, a 2 terminal panel, a 3 terminal panel).
- substrate (four terminal panel).
- substrate The figure which shows the terminal processing of the conventional mother board
- this substrate processing system divides the mother substrate carried in from the previous process into unit display panels, takes out the divided unit display panels one by one, and carries them out to the subsequent process. used.
- FIG. 1 is a perspective view showing an overall configuration of a substrate processing system 1 according to an embodiment of the present invention.
- FIG. 2 is a perspective view (excluding a platform 10 described later) of FIG.
- FIG. 3 is a plan view of the substrate processing system 1 (excluding a frame 11 and a column 14 described later).
- 4 is a sectional view taken along the line BB ′ of FIG. 3
- FIG. 5 is a sectional view taken along the line CC ′ of FIG. 3
- FIG. 6 is a sectional view taken along the line DD ′ of FIG. 8 and 8 are cross-sectional views taken along the line FF ′ of FIG.
- the substrate processing system 1 is configured such that the mother substrate 90 is transported in the Y direction from the substrate carry-in side 1L to the substrate carry-out side 1R, and scribe processing and break processing are performed on the way.
- the mother substrate 90 (bonded substrate) is placed so that the upper side is the second substrate G2 (TFT side substrate) and the lower side is the first substrate G1 (CF side substrate).
- a frame structure is formed by the hollow frame 10, the main frame 11, and the column 14.
- a substrate support device 20 for supporting the mother substrate 90 is disposed above the gantry 10.
- the substrate support device 20 includes a first substrate support portion 20A and a second substrate support portion 20B.
- a scribing device 30 is disposed at an intermediate position between the first substrate support portion 20A and the second substrate support portion 20B.
- the first substrate support portion 20 ⁇ / b> A includes five support units 21 arranged in the X direction.
- the second substrate support portion 20B has the same configuration.
- Each support unit 21 is fixed to the gantry 10 on the side close to the scribing device 30.
- a timing belt rotates around the upper surface of each support unit 21, and a mother substrate 90 is fed in conjunction with a clamp device 50 described later.
- the scribing device 30 is provided with an upper guide rail 31 and a lower guide rail 32, and is attached to the upper guide rail 31 so as to be movable in the X direction, and attached to the lower guide rail 32 so as to be movable in the X direction.
- a lower scribe mechanism 70 is attached.
- the upper scribe mechanism 60 includes an elevating mechanism 61, a rotating mechanism 62, and an X-axis driving mechanism 63.
- a second cutter wheel W2 and a backup roller W3 are attached to the lifting mechanism 61 side by side in the Y direction so that the second cutter wheel W2 and the backup roller W3 can be lifted and lowered independently. is there.
- the rotating mechanism 62 switches the cutting edge direction of the second cutter wheel W2 and the pressing direction of the backup roller W3 between the Y direction and the X direction.
- the X-axis drive mechanism 63 adjusts the positions of the second cutter wheel W2 and the backup roller W3 in the X direction. Further, these are driven during the scribing process in the X direction.
- the elevating mechanism 61 and the rotating mechanism 62 can select either the second cutter wheel W2 or the backup roller W3 and press-contact the substrate, and can move the moving direction in the Y direction or the X direction. It is.
- the backup roller W3 is used as a pair with a first cutter wheel W1 described later, and presses the upper substrate (second substrate) surface when only the lower substrate (first substrate) is scribed by the first cutter wheel W1. Used as is.
- the lower scribe mechanism 70 includes an elevating mechanism 71, a rotating mechanism 72, and an X-axis drive mechanism 73.
- a first cutter wheel W1 is attached to the lifting mechanism 71 and moves up and down.
- the rotating mechanism 72 switches the cutting edge direction of the first cutter wheel W1 between the Y direction and the X direction.
- the X-axis drive mechanism 73 adjusts the position of the first cutter wheel W1 in the X direction. Further, the first cutter wheel W1 is driven during the scribe process in the X direction. A specific scribing process will be described later.
- a clamp device 50 that clamps the end of the mother substrate 90 on the substrate carry-in side (the rear end of the mother substrate 90) is disposed on the substrate carry-in side 1 ⁇ / b> L side of the substrate support device 20.
- the clamp device 50 includes a pair of clamp tools 51 (51L, 51R), an elevating mechanism 55 (55L, 55R) for moving the clamp tools 51 up and down, and a moving base 57, and moves in the Y direction with the mother substrate 90 clamped.
- the clamp device 50 is driven by a linear motor mechanism 58.
- the rear end of the mother substrate 90 can pass through the scribe device 30 while moving in the gap and below the support unit 21 while the mother substrate 90 is clamped.
- the clamp tool 51L and the clamp tool 51R are configured to clamp the left column and the right column of the unit display panel formed on the mother substrate 90, respectively, and left and right even after dividing the substrate center along the Y direction.
- the divided mother substrate 90 can be supported in each row and can be sent in the Y direction.
- an upper steam unit 101 that blows heated steam from above onto the mother substrate 90 is provided on the substrate carry-out side 1R of the substrate support device 20.
- a steam break device 100 having a lower steam unit 102 sprayed from below is arranged.
- the mother substrate 90 expands, and active break processing is mainly performed in the X direction of the mother substrate.
- the steam breaker 100 can be moved in the Y direction by a linear motor mechanism 130.
- the steam breaker 100 is positioned in the Y direction formed on the substrate in the Y direction formed on the substrate.
- a roller break device 110 that presses the break rollers 111 to 113 along the adjacent position of the scribe groove and applies a break pressure (bending moment) in the Y direction of the substrate to perform a break process positively is disposed.
- the roller breaker 110 can be moved in the Y direction by a linear motor 130. The reason why the pressing positions of the break rollers 111 to 113 are removed from directly above the scribe groove is to prevent the cut surface from being damaged.
- the steam break device 100 and the roller break device 110 are devices that completely divide the mother substrate scribed for each unit display panel by the scribe device 30 for each unit display panel. Usually, each is sent out in a state where each one is completely separated and the end material region is also completely separated. However, in practice, some unit display panels may be sent out without separating the end material region. Therefore, in such a case, an additional break device (auxiliary break device) is provided in the next substrate carry-out device.
- the substrate unloading unit is taken out from the mother substrate 90 one by one and sent to the subsequent process.
- a device 120 is arranged.
- the substrate carry-out device 120 is provided with an upper guide rail 121, and a carry-out robot 80 that is movable in the X direction is attached to the upper guide rail 121.
- the substrate carry-out device 120 can be moved in the Y direction by a linear motor 130 (FIG. 1).
- the carry-out robot 80 includes a plate 83 to which a suction pad 82 is attached, a rotation mechanism 84 that rotates the plate 83 on the XY plane, an elevating mechanism 85 that raises and lowers the plate 83 in the Z direction, and an X-axis drive mechanism 86. .
- the unloading robot 80 sucks one of the unit display panels separated from the mother substrate 90 and pulls it upward. Further, the unit display panel that has been separated is moved in the X-axis direction while rotating, and further moved in the Y-direction by the linear motor 130 to carry out one by one. A specific procedure for taking out a plurality of unit display panels included in the mother substrate 90 one by one will be described later.
- the unloaded unit display panel is transferred to a subsequent process (not shown), and the next processing is performed.
- the plate 83 of the carry-out robot 80 is further provided with a hook 87 and a pusher 88 which are auxiliary break devices 140 for removing the end material E from the unit display panel being carried out when it is attached.
- the hook 87 is configured to be rotatable about a support shaft fixed to the plate 83. When the unit display panel is pulled away from the mother substrate by the suction pad 82, the hook 87 goes around the lower surface of the unit display panel. Thus, it is in contact with the end material attached to the end of the unit display panel.
- the pusher 88 is configured to press downward from above when the hook 87 is in contact with the end material. A specific procedure of the break processing of the end material E by the hook 87 and the pusher 88 will be described later.
- FIG. 9 is a block diagram showing a schematic configuration of a control system of the substrate processing system 1.
- the control unit 150 is configured by a computer device including hardware including a CPU, a memory, an input device, and an output device, and programs (software) for realizing various processes.
- the control unit 150 includes a conveyance control unit 151, a scribing device control unit 152, a break device control unit 153, and a panel carry-out device control unit 154.
- the transport controller 151 controls the substrate support device 20 and the clamp device 50 to control the movement of the mother substrate 90 from the substrate carry-in side 1L toward the substrate carry-out side 1R.
- the clamp tool 51 of the clamp device 50 is attached to the mother board 90 that has been carried in, and control is performed so that the mother board 90 is pushed from behind.
- the timing belt on the upper surface of each support unit 21 of the substrate support device 20 is interlocked to perform control so that the large-area substrate can be sent stably.
- the mother substrate 90 is moved forward and backward to perform control to repeat the Y direction scribe processing a plurality of times.
- the scribing device controller 152 operates the upper scribing mechanism 60 and the lower scribing mechanism 70 simultaneously to perform scribing of both sides of the substrate at the same time or scribing only one side.
- the second boundary is formed at the inner end of the first substrate portion facing the terminal area of the unit display panel on the side where the terminal area is in contact.
- a second scribe groove is formed on the non-terminal surface on the second substrate side of the unit display panel on the side where the non-terminal surface is in contact
- the first scribe groove is formed on the non-terminal surface on the first substrate side
- scribing is controlled so as to form a third scribe groove shallower than the second scribe groove.
- the groove depth can be adjusted by controlling the number of scribes for each scribe groove (the deep groove increases the number of scribes), or the scribe pressure force There is a method of adjusting the groove depth by controlling the above.
- control for defining the order of scribe is performed. Specifically, the first scribe groove and the second scribe groove are formed first by the combination of the first cutter wheel and the second cutter wheel, and then the third scribe by the combination of the backup roller and the second cutter wheel. Scribe control for forming grooves is performed. That is, the first scribe groove and the second scribe groove are first processed in a first scribe process in which no compressive stress is applied to the substrate to form deep scribe grooves. Subsequently, a second scribe process is performed in a state where compressive stress is generated by forming the scribe groove, and a third scribe groove shallower than the first scribe groove is formed. In this way, control is performed so that the depth of the third scribe groove is shallower than that of the first and second scribe grooves.
- the break device control unit 153 operates the steam break device 100 and the roller break device 110 to control break processing for the X-direction and Y-direction scribe grooves formed on the mother substrate 90.
- the panel carry-out device control unit 154 operates the carry-out robot 80 of the panel carry-out device 120 to suck the suction pad 82 onto the second substrate of the scribe-processed unit display panel and take it out from the mother substrate. Do. At this time, when taking out a pair of unit display panels that are in contact with each other across a specific boundary, the unit display panel that is in contact with the terminal area is preferentially taken out over the unit display panel that is in contact with the non-terminal face. In this manner, the order of taking out the unit display panels from the mother board is controlled.
- the carry-out robot 80 can be set in the order of setting by inputting and setting the order of taking out in advance based on the priority order. Remove the display panel.
- the panel carry-out device control unit 154 operates the auxiliary break device 140 (hook 87, pusher 88) attached to the carry-out robot 80, and the end material adheres to the end of the unit display panel. If so, control is performed to remove this.
- the scribing process is performed in the scribing device 30 (FIG. 5).
- the scribing device 30 In the step of taking out the unit display panel from the mother substrate 90, when the end material cannot be completely separated at the specific boundary (the boundary indicated by “ ⁇ ” in FIG. 18) included in the mother substrate, it is not the terminal cut surface Cb side. Edge material is adhered to the just cut surface Ca side.
- the just cut surface Ca side of the first substrate to which the end material is to be attached is formed as a scribe groove shallower than the terminal cut surface Cb side that is not desired to be attached.
- FIG. 10 is a flowchart showing a basic processing procedure when performing such a scribing process
- FIG. 11 is a schematic diagram showing a processing process.
- a terminal region T sandwiched between a just cut surface Ca and a terminal cut surface Cb is formed at a boundary portion between two adjacent unit display panels U1 and U2 on the mother substrate 90.
- the width of the terminal region T is about 1 mm to 3 mm. This part is scribed simultaneously with the cutter wheel to perform a process of exposing the bonding surface of the terminal region T (the bonding surface between the first substrate G1 and the second substrate G2).
- the transfer robot 80 When the unit display panel U1 is taken out from the mother substrate 90, the transfer robot 80 is attracted to the upper substrate surface, so the second substrate G2 (TFT side substrate) is on the upper side and the first substrate G1 (CF side substrate) is on the lower side. Place on the side. This is because the terminal region T (second substrate G2 side) is located above the end material region E (first substrate G1 side) when attracted to the unit display panel U1 and pulled away from the unit display panel U2. This is because the end material region E remains on the just cut surface Ca of the unit display panel U2 and is not attached to the terminal cut surface Cb.
- the second cutter wheel W2 of the upper scribe mechanism 60 is aligned with the just cut surface Ca of the second substrate G2. Further, the first cutter wheel W1 of the scribe mechanism 70 is aligned with the terminal cut surface Cb of the first substrate G1. Then, the first scribing is performed simultaneously with the pressing force P1 to form the first scribe groove M1 on the terminal cut surface Cb of the first substrate G1 and the second scribe groove M2 on the just cut surface Ca of the second substrate G2. (S101). At this time, since no stress is generated in the vicinity of the region to be processed, the first and second scribe grooves M1 and M2 can be extended deeply.
- the first cutter wheel W1 of the scribe mechanism 70 is aligned with the position of the just cut surface Ca.
- the backup roller W3 of the scribe mechanism 60 is aligned with the second substrate G2.
- the backup roller W3 is moved laterally so as to deviate from the position of the just cut surface Ca where the scribe groove M2 was previously formed, so that the scribe groove M2 is not damaged.
- a second scribing process is performed with a pressing force P2 that is the same as or weaker than the first pressing force P1, and a third scribe groove M3 is formed in the just cut surface Ca of the first substrate (S102).
- scribing is performed while resisting compressive stress, so that the extension of the scribe groove is inhibited and the scribe groove M3 is formed shallow. Since the scribe groove M3 was originally formed to be shallower than the scribe groove M1 on the terminal cut surface Cb, a scribe groove having a preferable depth is formed.
- the end material region E is on the terminal cut surface Cb side of the first substrate Instead of adhering to the first substrate G1, the first substrate G1 is separated while adhering to the just cut surface Ca side. Needless to say, the end material region E may be completely separated.
- each unit display panel includes not only a specific boundary having a terminal region T sandwiched between the terminal cut surface Cb and the just cut surface Ca, but also other types of boundaries. In such a case, it is also possible to process in a balanced manner by processing alternately between a plurality of boundaries instead of processing for each boundary.
- FIG. 12 is an example of scribing in the Y direction with respect to the mother substrate 90 in which unit display panels that are two-terminal panels are arranged in two rows in the X direction and four rows in the Y direction.
- FIG. 13 shows an example of scribing in the X direction.
- FIG. 14 is a flowchart showing the processing order in the Y direction.
- the first scribe (Y1) is performed on the central terminal region T (specific boundary). That is, scribing is performed on the terminal cut surface of the first substrate G1 and the just cut surface of the second substrate G2 (S201). As a result, a first scribe groove M1 and a second scribe groove M2 are formed.
- a second scribe (Y2) is performed on the terminal region TL near the left end (S202).
- a fourth scribe (Y4) is performed on the just cut surface of the first substrate G1 in the central terminal region T (specific boundary).
- scribing is performed while pressing the backup roller W3 next to the just cut surface of the second substrate G2 (in the drawing, the position is indicated by a cross mark instead of an arrow).
- a third scribe groove M3 is formed.
- the third scribe groove M3 is formed in a state where compressive stress is applied, it is shallower than the first scribe groove M1 and the second scribe groove M2.
- the X-direction scribing is subsequently performed.
- the boundary near the front end of the mother substrate 90 and including the just cut surface TF , three specific boundaries including the terminal region T at the center of the substrate, and the vicinity of the rear end a boundary that contains has the terminal region T B in is scribed.
- the terminal cut surface of the first substrate G1 and the just cut surface of the second substrate G2 are first strongly scribed, and the first substrate G1 is later
- the unit display panel can be surely taken out by scrubbing the just cut surface of the panel. Specifically, as shown in FIG.
- a break process for the mother substrate 90 will be described.
- a scribing groove is formed on the mother substrate 90 along the periphery of each unit display panel. If the substrate is thin, each unit display panel can be completely divided only by scribing, but if not, it is necessary to extend the scribe groove by applying a break treatment. Even if the plate thickness is thin, it is preferable to apply a break treatment in order to ensure complete separation.
- the break in the X direction by the steam break device 100 and the break in the Y direction by the roller break device 110 are performed so that each unit display panel is surely divided.
- the mother substrate 90 after scribing is passed through the gap between the upper steam unit 101 and the lower steam unit 102 of the steam breaker 100, and heated steam is sprayed.
- the scribe groove in the X direction mainly extends.
- the mother substrate 90 is sent to the roller breaker 110, and the break rollers 111 to 113 press the adjacent positions of the three scribe grooves in the Y direction. As a result, a bending moment is applied, and the scribe groove in the Y direction extends.
- the unit display panel is taken out by the carry-out robot 80 of the substrate carry-out device 120.
- the unloading robot 80 sucks and separates one of the unit display panels separated from the mother board 90, moves in the X axis direction while rotating the unit display panel, and further moves in the Y direction. Although it moves and carries out, the taking-out order of the unit display panel to carry out becomes important.
- the order of taking out the unit display panels from the mother board 90 having the specific boundary shown in FIG. 11 will be described.
- the unit display panel U1 When the unit display panels are taken out one by one from the mother board 90 having a specific boundary, the unit display panel U1 having the terminal cut surface Cb as the boundary surface among the two unit display panels adjacent to each other with the specific boundary interposed therebetween. It is necessary to take out the unit display panel U2 where the just cut surface Ca is a boundary. This priority order needs to be satisfied among all unit display panels included in the mother substrate 90. If this order of removal is not observed, the end material E may adhere to the terminal cut surface Cb side.
- FIG. 15 is a diagram showing the order in which unit display panels are taken out for a mother board having unit display panels arranged in two rows in the X direction and four rows in the Y direction.
- FIG. 15A shows a two-terminal panel
- FIG. 15B shows a three-terminal panel
- FIG. 15C shows a one-terminal panel.
- the unit display panel (1) is bounded by the terminal cut surface Cb of the unit display panel (1) with respect to a specific boundary (indicated by a circle in the figure) with the adjacent unit display panels (2) and (3). . Therefore, it is necessary to take out the unit display panel (1) first.
- the unit display panel (2) is a specific boundary with the adjacent unit display panel (4)
- the terminal cut surface Cb is the boundary.
- the unit display panel (3) has a terminal cut surface Cb as a boundary with respect to a specific boundary with the adjacent unit display panels (4) and (5). At this time, either one of the unit display panels (2) and (3) may be taken out.
- the unit display panel (2) can be removed first because it can be transported in one direction by taking out from the side closer to the front end of the mother substrate. ).
- the unit display panel (3) is a specific boundary with the adjacent unit display panels (4) and (5), and the terminal cut surface Cb is the boundary. Therefore, the unit display panel (3) is then taken out.
- the unit display panels are taken out in ascending order of numbers (1), (2),... (8) given to the unit display panels in FIG.
- the unit display panel on the terminal cut surface Cb side is preferentially taken out.
- FIG. 16 is a diagram (a front view, a plan view, a right side view) showing how to attach the end material to each of the unit display panels (1) to (8) taken out.
- the end material region may adhere to the region indicated by hatching.
- the end material may adhere to the just cut surface Ca, but it can be taken out without the end material adhering to the terminal cut surface Cb. Therefore, even if the end material adheres to the unit display panel, the end material can be reliably removed later by the auxiliary breaking process using the hook 87 and the pusher 88.
- the priority order may be determined between the two unit display panels.
- the unit display panel (1) may be taken out before the unit display panels (2) facing each other.
- the numbers assigned to the unit display panels are in ascending order (1 ), (2)... (8), the unit display panel is taken out.
- FIG. 17 is a diagram illustrating a break processing operation by the auxiliary break device 140 (hook 87 and pusher 88). The auxiliary break process is performed simultaneously with the substrate unloading by the unloading robot 80.
- the second substrate G2 (TFT side substrate) of the unit display panel is sucked by the suction pad 82 in a state where the hook 87 and the pusher 88 are avoided upward.
- the hook 87 is operated to come into contact with the end material E at the end of the first substrate G1, which is opposite to the suction surface, and the end material E at the lower end surface.
- the pusher 88 is operated and the end material E adhering to the edge of the 2nd board
- the end material E is surely divided by applying a bending moment that expands the third scribe groove M3 (see FIG. 10) formed between the end material E and the first substrate G1.
- the unloading robot 80 includes the auxiliary break device 140 including the hook 87 and the pusher 88, but instead, an inclined plate for pressing against the lower end surface of the end material E is unloaded. Separately provided at an appropriate position within the movement range of the robot 80, the transport robot is moved to this position, and the unit display panel to which the end material E is attached is lowered from above the inclined plate to end the end material. By pressing against the part of E, it can be surely divided.
- a separate robot hand may be provided in the vicinity of the transfer robot 80, and the end material E may be gripped by this robot hand and divided.
- the substrate processing method of the present invention can be used for scribing a mother substrate for a liquid crystal panel.
Abstract
Description
図21(a)では、端材Eが単位表示パネルU1、U2から完全分離しており、いずれ
の単位表示パネルU1、U2もそのまま良品とされる分離状態である。この状態に分離された単位表示パネルU1、U2は、そのまま後工程に移送される。
図21(b)は、端材Eが単位表示パネルU2から分離できておらず、ジャストカット面Ca側に付着し、単位表示パネルU1だけが完全分離した状態である。このときは単位表示パネルU1については良品としてそのまま後工程に移送されるが、単位表示パネルU2については、端材Eを分離する追加のブレイク処理を行って良品化してから後工程に移送することになる。
図21(c)は、端材Eが単位表示パネルU1から分離できておらず、端子カット面Cb側に付着し、単位表示パネルU2だけが完全分離した状態である。このときは単位表示パネルU2については良品としてそのまま後工程に移送されるが、単位表示パネルU1については端材Eを分離する追加のブレイク処理を行って良品化してから後工程に移送することになる。
で示す単位表示パネル)よりも先に、左側の単位表示パネルU1(図中一点鎖線で示す単位表示パネル)を取り出そうとして、単位表示パネルU1を第一基板G1側に引き離そうとすると、単位表示パネルU1の端子領域が端材Eと衝突して押圧することになる。このとき端材Eが単位表示パネルU2側のジャストカット面Caにしっかり付着していると、端子領域を損傷するおそれがある。
既述のように、上下基板加工システムでは、単位表示パネルが吸着パッドによりマザー基板の上側に引き離すようにして取り出すことが一般的であるのでこのような問題が発生する。
また、第二に、単位表示パネルの端子領域の端子幅が狭くなっても、端子領域を覆う部分の端材が端子カット面側に付着してしまう不良品が全く発生せず、端材が完全に分離するか、万一、完全分離できなかった場合でも、後から確実に端材を除去して良品化できる基板加工システムを提供することを目的とする。
また、第三に、マザー基板に配置された単位表示パネルを、端子領域が損傷することがないように取り出すことができる基板加工システムを提供することを目的とする。
方形の各単位表示パネルは、四辺の周縁のうち、一辺の周縁、又は、隣り合う二辺の周縁、又は、三辺の周縁に、第二基板側が第一基板側よりも突出した段差が形成されることにより端子領域が設けられている。また、端子領域が設けられない残りの周縁に、第一基板と第二基板とが同一端面となる非端子面が形成されている。また、端子領域に対向する第一基板の部位に単位表示パネルから切除される端材領域が設けられている。
さらに各単位表示パネルは、隣接する単位表示パネルの少なくとも一つとの境界で、一方の単位表示パネルの端子領域と、他方の単位表示パネルの非端子面とが面接するように配置されるようにしてある。この境界を、他の形態の境界と区別するために「特定境界」と呼ぶ。
(a)第一基板に向けた第一カッターホイールおよびバックアップローラと、第二基板に向けた第二カッターホイールとを備え、第一カッターホイールと第二カッターホイールとを組み合わせて、または、バックアップローラと第二カッターホイールとを組み合わせて第一基板と第二基板とを両側から圧接してスクライブ加工を行うスクライブ装置
(b)特定境界(一方の単位表示パネルの端子領域と、他方の単位表示パネルの非端子面とが面接する境界)をスクライブ加工する際に、端子領域が面接する側の単位表示パネルの端子領域に対向する第一基板の部位の内側端に第一スクライブ溝を形成し、非端子面が面接する側の単位表示パネルの第二基板側の非端子面に第二スクライブ溝を形成し、第一基板側の非端子面に前記第一スクライブ溝および前記第二スクライブ溝より浅い第三のスクライブ溝を形成するようにスクライブ装置を制御するスクライブ装置制御部
(c)吸着部材を備え、スクライブ加工された単位表示パネルの第二基板に吸着してマザー基板から取り出すパネル搬出装置
(d)前記特定境界を挟んで面接する一対の単位表示パネルを取り出す際に、端子領域が面接する側の単位表示パネルを非端子面で面接する側の単位表示パネルよりも優先的に取り出すパネル搬出装置制御部
(e)フックとプッシャとを備え、パネル搬出装置に取り付けられ、マザー基板から取り出した単位表示パネルの第一基板側の端部に第三スクライブ溝を挟んで端材領域が付着している場合に端材領域に対し前記フックを掛けるとともに前記プッシャを押圧して第三スクライブ溝を広げる方向の曲げモーメントを加えて端材領域を分断させる補助ブレイク装置
このとき端材領域は、隣接する単位表示パネルのジャストカット面側(第三スクライブ溝の位置)に付着するか、引き離しの際の振動・衝撃で両側の単位表示パネルから完全分離するようになる。
また、単位表示パネルの端子領域の端子幅が狭くなっても、端子領域を覆う部分の端材領域が端子カット面側に付着することがなくなり、端材領域を単位表示パネルから確実に除去することができる。
さらに、マザー基板に配置されたすべての単位表示パネルが端材領域と衝突することがなくなり、端子領域を損傷させることなく取り出すことができる。
上記発明において、スクライブ装置制御部は、第一カッターホイールと第二カッターホイールとの組み合わせにより第一スクライブ溝と第二スクライブ溝とを先に形成し、次いで、バックアップローラと第二カッターホイールとの組み合わせにより第三スクライブ溝を形成するスクライブ制御を行うようにしてもよい。
すなわち、強くスクライブする必要がある第一スクライブ溝(第一基板の端子カット面)および第二スクライブ溝(第二基板のジャストカット面)を、第一回目のスクライブ加工で先に形成する。第一回目のスクライブ加工では、基板に応力が発生していないので、いずれのスクライブ溝も深く形成することができる。なお、この場合は、一対のカッターホイールを、上下にまっすぐに対向させた状態で圧接するのではなく、端子幅の長さだけ離れた位置で圧接することになるが、端子幅は短いので影響はほとんどない。
続いて、第二回目のスクライブ加工で、第三スクライブ溝(第一基板のジャストカット面)をスクライブする。単位表示パネルの場合、上下の基板を張り合わせるシール材がスクライブ溝を形成する位置の近傍に存在する。基板に第一回目のスクライブによるスクライブ溝が形成されたとき、このシール材の存在により、このスクライブ溝とシール材とに挟まれた領域に圧縮応力が発生するようになる。そして第二回目のスクライブ加工はこの圧縮応力が発生した領域に第三スクライブ溝を形成することになる。したがって、第三スクライブ溝は圧縮応力を受けた状態でスクライブされることになり深いスクライブ溝を形成することは困難になるが、元々、第一、第二スクライブ溝よりも浅くスクライブすることを予定しているスクライブ溝なので、第一、第二、第三スクライブ溝を好ましい溝深さにした加工ができる。
これにより、先に形成された第二スクライブ溝を傷つけることなく、バックアップローラで第二基板側を支持しながら第三スクライブ溝を形成することができる。
主ブレイク装置によって、予めスクライブ溝を深く伸展させることができ、補助ブレイク装置とともに用いることで、より確実に端材領域を完全分断することができる。
これらにより直交する2方向のスクライブ溝に対するブレイク装置を、コンパクトな構成にすることができる。
20 基板支持装置
30 スクライブ装置
50 クランプ装置
60 上部スクライブ機構
70 下部スクライブ機構
80 搬出ロボット
85 補助ブレイク装置
87 フック
88 プッシャ
90 マザー基板
100 スチームブレイク装置
110 ローラブレイク装置
120 基板搬出装置
Ca ジャストカット面
Cb 端子カット面
G1 第一基板(CF側基板)
G2 第二基板(TFT側基板)
E 端材領域
T 端子領域
U1 単位表示パネル(端子カット面が境界に面する)
U2 単位表示パネル(ジャストカット面が境界に面する)
W1 第一カッターホイール
W2 第二カッターホイール
W3 バックアップホイール
最初に基板加工システムの全体構成について説明する。
図1は本発明の一実施形態である基板加工システム1の全体構成を示す斜視図である。図2は図1のA視斜視図(後述する架台10を除く)である。図3は基板加工システム1の平面図(後述するフレーム11、支柱14を除く)である。図4は図3のB-B’断面図、図5は図3のC-C’断面図、図6は図3のD-D’断面図、図7は図3のE-E’断面図、図8は図3のF-F’断面図である。
基板加工システム1は、基板搬入側1Lから基板搬出側1Rに向けて、Y方向にマザー基板90が搬送されていき、その途中でスクライブ加工やブレイク処理が行われるようにしてある。
マザー基板90(貼り合せ基板)は上側が第二基板G2(TFT側基板)、下側が第一基板G1(CF側基板)となるように載置される。
図5(a)(図3のC-C’断面)に示すように、上部スクライブ機構60は、昇降機構61、回転機構62、X軸駆動機構63からなる。昇降機構61には、第二カッターホイールW2とバックアップローラW3(図5(b)参照)とがY方向に並べて取り付けられ、第二カッターホイールW2とバックアップローラW3とが独立に昇降するようにしてある。回転機構62は、第二カッターホイールW2の刃先方向およびバックアップローラW3の押圧方向をY方向とX方向とに切り換える。X軸駆動機構63は、第二カッターホイールW2およびバックアップローラW3のX方向の位置を調整する。また、X方向のスクライブ加工の際にこれらを駆動する。
昇降機構61および回転機構62は、第二カッターホイールW2またはバックアップローラW3のいずれかを選択して基板に圧接することができ、また、移動方向をY方向またはX方向に向けることができるようにしてある。バックアップローラW3は、後述する第一カッターホイールW1と対になって使用され、第一カッターホイールW1で下側基板(第一基板)だけスクライブするときに、上側基板(第二基板)面を押圧するようにして用いられる。
具体的なスクライブ加工の手順については後述する。
次に、基板加工システムの制御系について説明する。図9は基板加工システム1の制御系の概略構成を示すブロック図である。制御部150はCPU、メモリ、入力装置、出力装置を備えたハードウェアと、種々の処理を実現するためのプログラム(ソフトウェア)とからなるコンピュータ装置で構成される。
制御部150を制御対象ごとに分類すると、搬送制御部151、スクライブ装置制御部152、ブレイク装置制御部153、パネル搬出装置制御部154からなる。
具体的には、搬入されたマザー基板90に、クランプ装置50のクランプ具51を装着し、マザー基板90の後方から押すようにして送る制御を行う。その際、基板支持装置20の各支持ユニット21上面にあるタイミングベルトを連動させることにより、大面積基板を安定して送ることができるように制御を行う。
また、Y方向に複数本のスクライブ溝を加工するときには、マザー基板90を前進、後退させることで、Y方向のスクライブ加工を複数回繰り返す制御を行う。
このような溝深さに大小をつける制御の具体的方法として、各スクライブ溝に対するスクライブ回数を制御することにより溝深さを調整したり(深い溝はスクライブ回数を増加させる)、スクライブの圧接力の制御により溝深さを調整したりする方法がある。
基板加工システム1を用いたマザー基板90についてのスクライブ加工の動作について説明する。スクライブ加工は、スクライブ装置30(図5)において行われる。
マザー基板90から単位表示パネルを取り出す工程で、マザー基板に含まれる特定境界(図18の「○」で示した境界)において端材が完全分離できなかった場合に、端子カット面Cb側ではなくジャストカット面Ca側に端材を付着させる。そのために、スクライブ加工の際に、端材を付着させたい第一基板のジャストカット面Ca側を、付着させたくない端子カット面Cb側よりも浅いスクライブ溝となるようにする。
図11(a)に示すように、マザー基板90上の隣接する2つの単位表示パネルU1、U2の境界部分に、ジャストカット面Caと端子カット面Cbとに挟まれた端子領域Tが形成されている。端子領域Tの幅は1mm~3mm程度である。この部分をカッターホイールで上下同時にスクライブ加工し、端子領域Tの貼り合せ面(第一基板G1と第二基板G2との接合面)を露出させる加工を行う。
第一回目のスクライブでスクライブ溝M1、M2が形成されると、その後のスクライブ溝M1、M2の近傍領域では、その両側がシール材S1、S2で固定されるとともにスクライブ溝M1、M2が広がる結果、近傍に圧縮応力が発生るようになる。
そのような場合、1つの境界ごとに加工するのではなく、複数の境界間で交互に加工するようにしてバランスよく加工することもできる。
まず、先に加工するY方向のスクライブについて説明する。Y方向のスクライブでは、マザー基板90の後端がクランプ装置50にてクランプされることで、スクライブ加工後に、X方向に分離されないようにしてある。
この場合、第一回目のスクライブ(Y1とする)を、中央の端子領域T(特定境界)に対して行う。すなわち第一基板G1の端子カット面と第二基板G2のジャストカット面とにスクライブを行う(S201)。その結果、第一スクライブ溝M1、第二スクライブ溝M2が形成される。続いて、第二回目のスクライブ(Y2とする)を、左端近傍の端子領域TLに対して行う(S202)。続いて、第三回目のスクライブ(Y3とする)を、右端近傍のジャストカット面TRに対して行う(S203)。なお、S202とS203とは入れ替えてもよい。そして、最後に第四回目のスクライブ(Y4とする)を、中央の端子領域T(特定境界)の第一基板G1のジャストカット面に対して行う。このときは第二基板G2のジャストカット面の横(図中、矢印に代えて十字印で位置を示す)を、バックアップローラW3で押圧しながらスクライブを行う。その結果、第三スクライブ溝M3が形成される。既述のように、第三スクライブ溝M3は、圧縮応力が加わった状態で形成されるので、第一スクライブ溝M1、第二スクライブ溝M2よりも浅くなる。
X方向については、図13に示すように、マザー基板90の前端近傍にありジャストカット面TFが含まれる境界と、基板中央にある端子領域Tを含んだ3つの特定境界と、後端近傍にあり端子領域TBが含まれる境界とが、スクライブ加工される。
この場合、X方向の3つの端子領域Tについても、これまでと同様に、第一基板G1の端子カット面と第二基板G2のジャストカット面を先に強くスクライブし、後から第一基板G1のジャストカット面を弱くスクライブすれば、確実に単位表示パネルを取り出すことができる。具体的には図13に示すように、X2(第一基板G1の端子カット面と第二基板G2のジャストカット面)、X3(第一基板G1のジャストカット面)、X4(第一基板G1の端子カット面と第二基板G2のジャストカット面)、X5(第一基板G1のジャストカット面)、X6(第一基板G1の端子カット面と第二基板G2のジャストカット面)、X7(第一基板G1のジャストカット面)の順で加工を行うようにする。なお、X3、X5、X7の加工の際には、第二基板G2のジャストカット面の横をバックアップローラで押圧しながらスクライブが行われる。
次に、マザー基板90のブレイク処理について説明する。スクライブ装置30によるスクライブ加工の結果、マザー基板90は各単位表示パネルの周縁に沿ってスクライブ溝が形成される。基板の板厚が薄い場合は、スクライブ加工のみで各単位表示パネルを完全に分断できるが、そうでない場合には、ブレイク処理を加えることでスクライブ溝を伸展させる必要がある。また、板厚が薄い場合であっても、確実に完全分断させるために、ブレイク処理を加える方が好ましい。本実施形態では、各単位表示パネルが確実に分断されるように、スチームブレイク装置100によるX方向のブレイクと、ローラブレイク装置110によるY方向のブレイクとを行うようにしている。
次に、マザー基板90からの単位表示パネルを取り出し動作について説明する。単位表示パネルの取り出しは、基板搬出装置120の搬出ロボット80によって行われる。
既述のように、搬出ロボット80は、マザー基板90から分断された単位表示パネルの1つを吸着して上方に引き離し、単位表示パネルを回転しながらX軸方向に移動し、さらにY方向に移動して搬出するが、搬出する単位表示パネルの取り出し順が重要になる。
図11に示した特定境界を有するマザー基板90から単位表示パネルを取り出すときの取り出し順序について説明する。
単位表示パネル(1)が取り出された状態では、単位表示パネル(2)が、隣接する単位表示パネル(4)との特定境界で、端子カット面Cbが境界となる。また、単位表示パネル(3)は隣接する単位表示パネル(4)(5)との特定境界に対し、端子カット面Cbが境界となる。このときは単位表示パネル(2)(3)のいずれかを取り出せばよいが、マザー基板の前端に近い側から取り出す方が一方向の搬送で済ませることができるため、先に単位表示パネル(2)を取り出す。
単位表示パネル(1)(2)が取り出された状態では、単位表示パネル(3)が、隣接する単位表示パネル(4)(5)との特定境界で、端子カット面Cbが境界となる。したがって、次に単位表示パネル(3)を取り出す。以下同様に、図14において各単位表示パネルに付した番号の若い順(1)、(2)・・・(8)に、単位表示パネルを取り出すようにすれば、すべての特定境界に対し、端子カット面Cb側の単位表示パネルを優先して取り出すことになる。
いずれの単位表示パネルについても、ジャストカット面Caには端材が付着する可能性があるが、端子カット面Cbに端材が付着することなく取り出すことができる。したがって、単位表示パネルに端材が付着していても、後から、フック87およびプッシャ88を用いた補助ブレイク処理で、確実に端材を除去することができる。
次に、補助ブレイク処理について説明する。
図17は、補助ブレイク装置140(フック87およびプッシャ88)によるブレイク処理動作を示す図である。補助ブレイク処理は、搬出ロボット80による基板搬出と同時に行われる。
次いで、図17(b)に示すように、フック87を作動して、吸着面とは逆側である第一基板G1の端にある端材Eに接触させ、端材Eを下方の端面で支持する。
そして図17(c)に示すように、プッシャ88を作動して第二基板G2の端に付着する端材Eを上方から押圧する。
例えば、上記実施形態では、搬出ロボット80に、フック87およびプッシャ88からなる補助ブレイク装置140を備えていたが、これに代えて、端材Eの下端面に押し当てるための傾斜板を、搬出ロボット80の移動範囲内の適当な位置に別途に設けておき、搬送ロボットをこの位置まで移動させるとともに、端材Eが付着している単位表示パネルを、傾斜板の上方から下降して端材Eの部分に押し当てることで、確実に分断させることができる。
また、搬送ロボット80の近傍に、別途にロボットハンドを設けておき、端材Eの部分をこのロボットハンドで把持して分断するようにしてもよい。
Claims (5)
- 加工対象のマザー基板が第一基板と第二基板とを貼り合わせた構造を有し、
それぞれ形状が同一でかつ方形である複数の単位表示パネルが、前記マザー基板に互いに隣接するようにして並べて形成され、
各単位表示パネルは、四辺の周縁のうち、一辺の周縁、又は、隣り合う二辺の周縁、又は、三辺の周縁に、第二基板側が第一基板側よりも突出した段差が形成されることにより端子領域が設けられ、
端子領域が設けられない残りの周縁に第一基板と第二基板とが同一端面となる非端子面が形成され、前記端子領域に対向する第一基板の部位に単位表示パネルから切除される端材領域が設けられ、
さらに各単位表示パネルは、隣接する単位表示パネルの少なくとも一つとの境界で、一方の単位表示パネルの端子領域と、他方の単位表示パネルの非端子面とが面接するように配置され、
前記マザー基板を第二基板が上側、第一基板が下側になるように支持した状態で単位表示パネルごとに分断し1つずつ取り出す基板加工システムであって、
第一基板に向けた第一カッターホイール、バックアップローラと第二基板に向けた第二カッターホイールとを備え、第一カッターホイールと第二カッターホイールとを組み合わせて、または、バックアップローラと第二カッターホイールとを組み合わせて第一基板と第二基板との両側から圧接してスクライブ加工を行うスクライブ装置と、
前記境界をスクライブ加工する際に、端子領域が面接する側の単位表示パネルの端子領域に対向する第一基板の部位の内側端に第一スクライブ溝を形成し、非端子面が面接する側の単位表示パネルの第二基板側の非端子面に第二スクライブ溝を形成し、第一基板側の非端子面に前記第一スクライブ溝および前記第二スクライブ溝より浅い第三のスクライブ溝を形成するように前記スクライブ装置を制御するスクライブ装置制御部と、
吸着部材を備え、スクライブ加工された単位表示パネルの第二基板に吸着してマザー基板から取り出すパネル搬出装置と、
前記境界を挟んで面接する一対の単位表示パネルを取り出す際に、端子領域が面接する側の単位表示パネルを非端子面で面接する側の単位表示パネルよりも優先的に取り出すパネル搬出装置制御部と、
フックとプッシャとを備え、前記パネル搬出装置に取り付けられ、マザー基板から取り出した単位表示パネルの第一基板側の端部に第三スクライブ溝を挟んで端材領域が付着している場合に前記端材領域に対し前記フックを掛けるとともに前記プッシャを押圧して第三スクライブ溝を広げる方向の曲げモーメントを加えて前期端材領域を分断させる補助ブレイク装置とを備えたことを特徴とする基板加工システム。 - スクライブ装置制御部は、第一カッターホイールと第二カッターホイールとの組み合わせにより第一スクライブ溝と第二スクライブ溝とを先に形成し、
次いで、バックアップローラと第二カッターホイールとの組み合わせにより第三スクライブ溝を形成するスクライブ制御を行う請求項1に記載の基板加工システム。 - 第三スクライブ溝を形成する際に、バックアップローラは先に形成された第二スクライブ溝の隣接位置を圧接する請求項2に記載の基板加工システム。
- スクライブ装置とパネル搬出装置との間に設置され、スクライブ装置によりスクライブ加工された後で、パネル搬出装置に取り付けられた補助ブレイク装置によるブレイク処理の前に、予めブレイク処理を行う主ブレイク装置を備えた請求項1~請求項3のいずれかに記載の基板加工システム。
- 主ブレイク装置は、スチームブレイク装置とローラブレイク装置とからなる請求項4に記載の基板加工システム。
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- 2009-02-20 KR KR1020107022772A patent/KR101105631B1/ko active IP Right Grant
- 2009-02-20 CN CN200980121320XA patent/CN102057314B/zh not_active Expired - Fee Related
- 2009-03-20 TW TW98109039A patent/TWI409230B/zh not_active IP Right Cessation
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KR20110129319A (ko) * | 2010-05-25 | 2011-12-01 | 가부시키가이샤 시라이텍크 | 패널의 절단장치 |
JP2011247972A (ja) * | 2010-05-25 | 2011-12-08 | Shirai Tech Ltd | パネルの折割装置 |
TWI468774B (ja) * | 2010-05-25 | 2015-01-11 | ||
KR101682441B1 (ko) | 2010-05-25 | 2016-12-05 | 가부시키가이샤 시라이텍크 | 패널의 절단장치 |
US9477109B2 (en) | 2014-05-08 | 2016-10-25 | Samsung Display Co., Ltd. | Method of manufacturing a display panel having a desired shape |
KR20160001602U (ko) * | 2014-11-05 | 2016-05-13 | 가부시키가이샤 시라이텍크 | 패널의 절단장치 |
KR200481991Y1 (ko) | 2014-11-05 | 2016-12-12 | 가부시키가이샤 시라이텍크 | 패널의 절단장치 |
USD973116S1 (en) * | 2020-11-17 | 2022-12-20 | Applied Materials, Inc. | Mainframe of substrate processing system |
USD973737S1 (en) * | 2020-11-17 | 2022-12-27 | Applied Materials, Inc. | Mainframe of substrate processing system |
USD991994S1 (en) | 2020-11-17 | 2023-07-11 | Applied Materials, Inc. | Mainframe of substrate processing system |
USD992611S1 (en) | 2020-11-17 | 2023-07-18 | Applied Materials, Inc. | Mainframe of substrate processing system |
Also Published As
Publication number | Publication date |
---|---|
JP5542976B2 (ja) | 2014-07-09 |
JP5185380B2 (ja) | 2013-04-17 |
CN102057314A (zh) | 2011-05-11 |
TW201000417A (en) | 2010-01-01 |
TWI409230B (zh) | 2013-09-21 |
KR101105631B1 (ko) | 2012-01-18 |
JP2013121913A (ja) | 2013-06-20 |
JPWO2009154022A1 (ja) | 2011-11-24 |
CN102057314B (zh) | 2012-03-28 |
KR20100122954A (ko) | 2010-11-23 |
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