JP2010192840A - Bonding apparatus of adhesive tape - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bonding apparatus that can efficiently bond an anisotropic conductive tape on a substrate. <P>SOLUTION: The bonding apparatus includes: a pair of guide rollers 11a and 11b for guiding a tape member so that the guide rollers face each other near the top surface of a side of the substrate; a stripper roller 17 that is integrated with one of the guide rollers on the other end of the substrate in the width direction and strips a release tape stuck to the guide roller from the adhesive tape bonded to the substrate; a chuck mechanism 21 for holding a portion on which the adhesive tape of the release tape is removed; a first drive means 19 that advances one of the guide rollers and the stripper roller between the substrate and a pressing tool to strip the release tape from the adhesive tape bonded to the substrate when the pressing tool 13 moves up after being descended to bond the adhesive tape to the upper part of the side of the substrate; and a second driving means 25 that drives a chuck mechanism holding the release tape in the same direction as one of the guide rollers and the stripper roller, and feeds a tape member 4 from a feed reel 9. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to an adhesive tape attaching apparatus for cutting an adhesive tape attached to a release tape into a predetermined length and attaching it to a substrate.

  For example, in a manufacturing process such as a flat panel display represented by a liquid crystal display panel or a plasma display panel, a TCP (Tape Carrier Package) which is an electronic component is provided on a terminal portion provided on a side surface of a glass substrate. There is a step of attaching via an adhesive tape made of an anisotropic conductive tape formed of a thermosetting resin containing metal particles having a diameter of μm.

  The adhesive tape is cut to a predetermined length and attached to the upper surface of the side portion of the substrate before the TCP is attached to the terminal portion on the upper surface of the side portion of the substrate. A release tape that forms a tape member with the adhesive tape is attached to one side surface of the adhesive tape, and the adhesive tape is wound around a supply reel together with the release tape.

  When sticking TCP with the adhesive tape on the side part upper surface of a board | substrate, first, the adhesive tape drawn | fed out from the supply reel with the release tape is parted to predetermined length. The cutting length of the adhesive tape at this time is set to a length corresponding to the terminal portion provided on the upper surface of the side portion of the substrate.

  Next, the adhesive tape divided to a predetermined length is separated from the supply reel with the release tape at a predetermined stroke so that the divided portion faces the upper surface of one side portion where the terminal portion of the substrate is provided. It is pulled out and positioned. The substrate is placed on a stage that is driven in the horizontal direction, and is positioned so that one side portion provided with a terminal portion faces below the adhesive tape.

  When the substrate is positioned, a pressurizing tool having a heater disposed so as to be vertically movable above the stage is driven in a descending direction. Thereby, the portion of the pressure-sensitive adhesive tape divided into a predetermined length is attached to the substrate.

  When the adhesive tape is attached to the substrate, the release tape is peeled off from the adhesive tape, and then the release tape is taken up by a take-up reel. Such a tape sticking apparatus is shown in Patent Document 1.

  The mechanism for peeling the release tape from the adhesive tape adhered to the substrate in the tape adhering device shown in Patent Document 1 is the feed path of the tape member outside the pressure tool for crimping the adhesive tape to the substrate. Further, the pair of guide rollers has a rectangular plate-like mounting member provided at a predetermined interval in the vertical direction.

  The pair of guide rollers guide the tape member to bend upward, and the attachment member is driven to reciprocate along the width direction of the substrate. A moving clamp (chuck mechanism) that holds the release tape peeled off from the adhesive tape is provided on the top of the mounting member.

  And after the said adhesive tape is affixed on a board | substrate, the said attachment member is driven in the direction approached between a board | substrate and a pressurization tool, and it releases from the adhesive tape affixed on the board | substrate with the said pair of guide roller Remove the tape. Next, the attachment member is driven in a direction of retreating from between the substrate and the pressing tool.

  At this time, the part of the release tape peeled off from the adhesive tape is held by the chuck mechanism. As a result, the tape member wound around the supply reel is fed out for a predetermined length by the chuck mechanism, and the part of the release tape from which the adhesive tape has been removed is taken up by the take-up reel.

JP-A-10-135274

  By the way, according to the tape sticking apparatus having the above-described configuration, the chuck mechanism for feeding the tape member from the supply reel is a pair of guide rollers for peeling the release tape from the adhesive tape stuck to the substrate as described above. In addition, it is integrally provided on a rectangular plate-shaped attachment member.

  The chuck mechanism is provided further above the guide roller located above the pair of guide rollers provided on the mounting member in order to sandwich the portion of the release tape separated by the pair of guide rollers. It will be. Therefore, it is inevitable that the mounting member has a height dimension that is larger than the height dimension required for providing the pair of guide rollers.

  As described above, when the height of the mounting member is increased, the pressure tool is lifted so that the mounting member can enter between the pressure tool and the substrate when the release tape is peeled off. Must be high enough. Increasing the elevation position of the pressurization tool may increase the height of the device and increase the stroke of the vertical movement of the pressurization tool. May decrease.

  In this invention, the adhesive tape can be adhered, the release tape can be peeled off, and the tape member can be fed out from the supply reel without allowing the chuck mechanism to enter between the adherend member and the raised pressure tool. It is providing the sticking apparatus of a tape member.

In the present invention, a tape member is constituted by a release tape and an adhesive tape attached to the release tape, and the adhesive tape cut to a predetermined length is horizontally held. A sticking device for sticking to the upper surface of the side part,
A supply reel disposed on the outer side of one end in the width direction of the adherend member and wound with the tape member;
The pressure-sensitive adhesive tape, which is disposed outside the other end in the width direction of the adherend member and is drawn out from the supply reel with the adhesive tape facing downward and cut to a predetermined length, is adhered to and removed from the adherend member. A take-up reel that winds up the release tape of the tape member,
Pressurization for adhering the adhesive tape cut to a predetermined length by being driven in the up and down direction and driven in the downward direction above the adherend member to the upper surface of the side portion of the adherend member Tools and
The adhesive tape that is provided outside one end side and the other end side in the width direction of the adherend member and cut to a predetermined length approaches the upper surface of the side portion of the adherend member so as to face each other. A pair of guide rollers for guiding the tape member;
The release tape, which is integrally provided with one guide roller located on the other end side and is engaged with the one guide roller, is disposed outside the other end side in the width direction of the adherend member. A peeling roller for guiding in a direction to peel from the adhesive tape attached to the upper surface of the side of the sticking member;
A chuck mechanism that is provided on the outer side of the other end in the width direction of the adherend member with respect to the peeling roller and sandwiches the portion of the release tape from which the adhesive tape has been removed so as to be openable and closable;
When the pressing tool driven in the downward direction and having the adhesive tape adhered to the upper surface of the side of the adherend ascends, the one guide roller and the peeling roller are connected to the adherend and the addition member. A first driving means for separating the release tape from the adhesive tape that has entered between the pressure tool and adhered to the upper surface of the side of the adherend member;
The release tape is peeled off from the adhesive tape attached to the adherend member, and the one guide roller and the release roller are moved between the adherend member and the pressure tool by the first driving means. When driven in the retreating direction, the chuck mechanism holding the release tape is driven in the same direction as the direction in which the one guide roller and the peeling roller are driven to feed the tape member from the supply reel. And a second driving means for providing the tape member sticking apparatus.

A buffer means for holding the tape member fed from the supply reel in a slack state with a predetermined tension is provided,
When the part of the tape member facing the adherend member is pressed by the pressure tool, the buffer member resists the holding force of the buffer means in accordance with the lowering of the pressure tool. It is preferable that it is pulled out from.

The one guide roller and the peeling roller are provided on a flat mounting member so that the peeling roller is positioned above the guide roller,
It is preferable that the first driving means reciprocates the mounting member in a horizontal direction along the width direction of the mounted member.

  According to this invention, a chuck mechanism is provided separately from the guide roller and the peeling roller outside the other end in the width direction of the adherend member, and the adhesive tape is attached to the adherend member. After the release tape is peeled off, the tape mechanism can be fed from the supply reel by the chuck mechanism without causing the chuck mechanism to enter between the pressing tool.

  For this reason, the rising position of the pressure tool only needs to be high enough to allow the guide roller and the peeling roller to enter. It can be shortened to improve productivity.

The block diagram of the sticking apparatus of the adhesive tape which shows one embodiment of this invention. (A) is a top view of the state which affixed the electronic component on the board | substrate, (b) is a top view which shows the terminal part provided in the board | substrate. Explanatory drawing which shows the state in the middle of peeling a release tape from the adhesive tape affixed on the board | substrate with the peeling roller. Explanatory drawing which shows the state by which the release tape was finished peeling from the adhesive tape stuck on the board | substrate. Explanatory drawing which shows the state which pulled out the tape member from the supply reel by the chuck mechanism after peeling a release tape from an adhesive tape.

  Embodiments of the present invention will be described below with reference to the drawings.

  FIG. 1 shows a tape member sticking apparatus according to an embodiment of the present invention, and this sticking apparatus includes a stage 5. The stage 5 has a base 6, and a table 7 that is driven in the X, Y, and θ directions by an X drive source 6 a, a Y drive source 6 b, and a θ drive source 6 c is provided on the upper surface of the base 6.

  On the table 7, a substrate W composed of a liquid crystal display panel as a member to be adhered is supplied and vacuum-adsorbed. On one side portion of the upper surface of the substrate W, as shown in FIG. 2B, a plurality of terminal portions 1 in which a plurality of terminals 1a are formed at predetermined intervals are provided.

  On the upper surface of the side portion of the substrate W where the terminal portion 1 is provided, as shown in FIG. It is stuck as shown in (a). The anisotropic conductive tape 2 is made of a thermosetting resin mixed with metal particles. An electronic component 3 such as TCP is attached to each terminal portion via the anisotropic conductive tape 2.

  As shown in FIG. 1, the anisotropic conductive tape 2 is attached to a release tape 8 that forms a tape member 4 with the anisotropic conductive tape 2, and is one end in the width direction of the substrate W. Is wound around a supply reel 9 disposed on the outer side. The tape member 4 is unwound from the supply reel 9 and is arranged on one side of the substrate W placed on the table 7 with the anisotropic conductive tape 2 facing downward and to the outside of the other side. A pair of guide rollers 11 a and 11 b and a guide roller 11 c provided further outward than the guide rollers 11 b are guided by the take-up reel 12.

  As a result, the tape member 4 travels in parallel with the portions guided by the pair of guide rollers 11a and 11b approaching the upper surface of the terminal portion 1 of the substrate W placed on the table 7. It has become.

  The supply reel 9 is disposed outward on one end side in the width direction of the substrate W, and the take-up reel 12 is disposed outward on the other end side.

  A pressurizing tool 13 having a heater 13 a is provided above the table 7 so as to be movable up and down by a vertical drive mechanism 14. The anisotropic conductive tape 2 of the tape member 4 is cut to a predetermined length by a cutting unit 31 described later, and the cut portion 2a is positioned below the pressure tool 13 as described later.

  When the cut portion 2 a of the anisotropic conductive tape 2 is positioned below the pressure tool 13, the pressure tool 13 is lowered and the cut portion 2 a of the anisotropic conductive tape 2 is moved to the side of the substrate W. The part where the terminal part 1 is provided is pressed and pasted. Thereafter, the release tape 8 is peeled from the anisotropic conductive tape 2 as will be described later, and only the release tape 8 is wound on the take-up reel 12.

  When the release tape 8 is peeled from the cut portion 2 a of the anisotropic conductive tape 2 attached to the substrate W, the peeling is performed by the peeling means 16. The peeling means 16 has a rectangular attachment member 18 to which a guide roller 11b located on the take-up reel 12 side and a peeling roller 17 located slightly above the guide roller 11b are rotatably attached.

  The mounting member 18 is driven to reciprocate along the width direction of the substrate W indicated by an arrow X in FIG.

  The release tape 8 peeled off from the cut portion 2a of the anisotropic conductive tape 2 adhered to the substrate W is engaged with the guide rollers 11b and 11c and the peeling roller 17 to be placed on the take-up reel 12. It is wound up. As a result, the release tape 8 is converted from the direction parallel to the plate surface of the substrate W to the upward direction away from the plate surface by the peeling roller 17.

  In a state where the pressure tool 13 is raised, the attachment member 18 is inserted into the space between the substrate W and the pressure tool 13 by the first driving means 19 as shown by an arrow -X in FIG. When driven, the part of the release tape 8 attached to the cut part 2a is pulled upward by the peeling roller 17. Thereby, the release tape 8 is peeled from the cut portion 2a.

  As shown in FIG. 4, the peeling roller 17 that has entered between the substrate W and the pressurizing tool 13 is driven from the other end in the width direction of the substrate W to one end and stuck to the substrate W. When the release tape 8 is peeled from the cut portion 2a, the mounting member 18 is opposite to the other end in the width direction of the substrate, that is, the arrow + X in FIG. It is driven in the direction of retreating from between the substrate W and the pressing tool 13 shown in FIG.

  On the other hand, the tape member 4 is conveyed by the chuck mechanism 21. The chuck mechanism 21 has a chuck 24 provided on the movable plate 22 and driven to open and close by a cylinder 23.

  The chuck 24 sandwiches a portion of the release tape 8 that is led out from the peeling roller 17 in the horizontal direction. The movable plate 22 is driven in the same direction by the second driving means 25 in synchronism with the mounting member 18 driven in the + X direction by the first driving means 19, that is, in the + X direction shown in FIGS. 1 and 4. Thus, the release tape 8 is pulled out in the + X direction, and the next cut portion 2a is made to face the substrate W.

  The chuck 24 is in an open state when the peeling means 16 is driven in the −X direction and enters between the substrate W and the pressing tool 13 from the other end in the width direction of the substrate W. When driven in the + X direction, the cylinder 23 is driven in the closing direction, and the part of the release tape 8 led out from the peeling roller 17 is pinched.

  As a result, the tape member 4 wound around the supply reel 9 is pulled out by the chuck 24 as shown in FIG. 5, so that the anisotropic conductive tape 2 cut to a predetermined length by the cutting unit 31 is used. A new cutting portion 2a is positioned below the pressing tool 13.

  While the chuck mechanism 21 pulls out the tape member 4 from the supply reel 9, the table 7 is driven, for example, in the Y direction crossing the X direction, and the anisotropic conductive tape 2 on the table 7 is adhered. The substrate W is replaced with a new substrate W to which the anisotropic conductive tape 2 is attached.

  As the first and second driving means 19 and 25, a linear motor or a screw shaft that is rotationally driven by a driving source is used. The first driving means 19 for driving the peeling means 16 is a region in which the pressure tool 13 moves up and down so that a guide (not shown) that guides the mounting member 18 in the X direction does not interfere with the vertical movement of the pressure tool 13. Is provided at a position deviating in the Y direction intersecting the X direction.

  As shown in FIG. 1, the cutting unit 31 has a cutter 32 disposed below a portion where the conveyance direction is converted to horizontal by one guide roller 11 a. The cutter 32 is driven in the vertical direction by a cylinder 33. When the cutter 32 is driven in the upward direction, the anisotropic conductive tape 2 whose tip is directed downward of the tape member 4 is cut. At this time, the upper surface of the tape member 4 is held by the lower surface of the holding block 34 and is prevented from bending upward.

  That is, the anisotropic conductive tape 2 of the tape member 4 is cut by the cutter 32 at intervals corresponding to the feed length by the chuck 24. The cutting length of the anisotropic conductive tape 2 corresponds to the length attached to the upper surface of one side of the substrate W.

  Between the supply reel 9 and the cutting unit 31, there is provided a buffer means 35 for applying a tension while the tape member 4 fed from the supply reel 9 is loosened. The buffer means 35 has a dancer case 36. The dancer case 36 is formed in a flat box shape with one side opened, and is horizontally disposed with the opening 36a facing sideways. The width of the opening 36 a is set slightly larger than the width of the tape member 4.

  A suction blower 37 as a suction means is provided on the side surface of the dancer case 36 opposite to the opening 36a. The suction blower 37 sucks the gas in the dancer case 36 to make the inside negative.

  The tape member 4 fed out from the supply reel 9 is guided by the upper guide roller 38 so as to run against the opening 36 a of the dancer case 36. In this state, when the suction blower 37 is operated to apply a negative pressure in the dancer case 36, the tape member 4 is drawn into the dancer case 36 by the suction force of the suction blower 37 and is bent. That is, when the suction force of the suction blower 37 acts on the tape member 4, a tension corresponding to the suction force is applied to the tape member 4.

  A pair of guide rollers 39 for guiding and smoothly bending the tape member 4 drawn into the dancer case 36 is provided in the opening 36a of the dancer case 36. Furthermore, when the tape member 4 is pulled into the dancer case 36 by the suction force of the suction blower 37, a pressurized gas that urges the tape member 4 into the dancer case 36 is sprayed onto the portion facing the opening 36a. A pressurizing nozzle 41 as a pressurizing unit is arranged. An air pipe 43 having an open / close control valve 42 is connected to the pressurizing nozzle 41.

  As a result, the tape member 4 drawn out from the supply reel 9 is curved in the dancer case 36 of the buffer means 35 and the suction force of the suction blower 37 and the pressure applied from the pressure nozzle 41 are pressed. It is held with a holding force due to the pressure of the gas.

  Therefore, when a force larger than the holding force is applied to the tape member 4, a curved portion in the dancer case 36 is pulled out according to the force. That is, even if a predetermined tension or more is applied to the tape member 4, the tape member 4 is not broken by the tension.

  According to the sticking apparatus configured as described above, the cutting tool 2 is lowered and the cut portion 2a cut to the predetermined length of the anisotropic conductive tape 2 is stuck to the upper surface of the side portion of the substrate W. Thereafter, when the pressurizing tool 13 is raised, the attachment member 18 of the peeling means 16 enters between the substrate W and the pressurizing tool 13 by the first driving means 19 as shown in FIG. Is done.

  As shown in FIG. 4, when the peeling means 16 is driven to one end portion in the width direction of the substrate W, the difference adhered to the substrate W by the guide roller 11 b and the peeling roller 17 provided on the attachment member 18. The release tape 8 is peeled from the cut portion 2 a of the isotropic conductive tape 2. Until the peeling means 16 finishes peeling the release tape 8 from the cut portion 2a, the chuck 24 provided on the movable plate 22 of the chuck mechanism 21 is open.

  When the release tape 8 is peeled from the cut portion 2a, the chuck 24 is closed by the cylinder 23 as shown in FIG. 4, and the first driving means 19 moves the mounting member 18 in the opposite direction. Then, it is driven in the + X direction, which is retracted from between the substrate W and the pressing tool 13. At this time, the second driving means 25 drives the movable plate 22 of the chuck mechanism 21 in the + X direction, which is the same direction as the mounting member 18, in synchronization with the first driving means 19.

  A chuck 24 provided on the movable plate 22 is urged in a closing direction by a cylinder 23. As a result, the tape member 4 is pulled in the + X direction by the chuck 24, so that the tape member 4 wound around the supply reel 9 is pulled out as shown in FIG.

  When the tape member 4 is pulled out from the supply reel 9 by the chuck 24, the release tape 8 from which the anisotropic conductive tape 2 has been removed from the tape member 4 according to its length is taken up by the take-up reel 12. The new cut portion 2 a of the anisotropic conductive tape 2 faces the side portion of the new substrate W that is supplied and placed on the table 7.

  In such a sticking apparatus, the mounting member 18 is provided with the guide roller 11b and the peeling roller 17, and the chuck 24 is not provided. Therefore, the height dimension of the attachment member 18 can be reduced as compared with the case where the chuck 24 is provided on the attachment member 18.

  If the height dimension of the mounting member 18 can be reduced, when the mounting member 18 enters between the substrate W and the pressure tool 13, the top surface of the substrate W of the pressure tool 13 indicated by H in FIG. Can be lowered according to the height of the mounting member 18.

  Therefore, since the time required for the pressurization tool 13 to descend and rise can be shortened, the tact time required for adhering the anisotropic conductive tape 2 to the substrate W can be shortened accordingly. It becomes possible.

  When the cut portion 2a of the anisotropic conductive tape 2 is pressed by the pressing tool 13 and attached to the upper surface of the side portion of the substrate W, the portions guided by the pair of guide rollers 11a and 11b of the tape member 4 are moved downward. When pushed up, the tension of the tape member 4 increases.

  When the tension of the tape member 4 is increased, the loosened portion is drawn out in the dancer case 36 of the buffer means 35 in accordance with the increase, thereby preventing the tension of the tape member 4 from increasing. Thereby, at the time of sticking the anisotropic conductive tape 2, it is prevented that the tension | tensile_strength larger than necessary arises in the tape member 4, and a fracture | rupture and elongation arise.

  In the above embodiment, the tape member is sucked into the dancer case as the buffering means and loosened.However, as the buffering means, the tape member is engaged with the elastically displaceable roller and loosened, When a tension more than necessary is applied to the tape member, the roller may be elastically displaced to relieve the tension applied to the tape member.

  In the above-described embodiment, a substrate such as a liquid crystal display panel or a plasma display panel has been described as an adherent member to which the anisotropic conductive tape is attached. Recently, the anisotropic conductive tape is used as a substrate. Since the electronic component may be mounted on the substrate after being attached to an electronic component such as TCP that is mounted on the substrate without being attached, even in such a case, the attaching device of the present invention is used. It is possible to use.

  DESCRIPTION OF SYMBOLS 2 ... Anisotropic conductive tape (adhesive tape), 4 ... Tape member, 8 ... Release tape, 9 ... Supply reel, 11a, 11b ... Guide roller, 12 ... Take-up reel, 13 ... Pressure tool, 11a, 11b ... guide roller, 16 ... peeling means, 17 ... peeling roller, 19 ... first driving means, 24 ... chuck, 25 ... second driving means, 35 ... buffer means.

Claims (3)

A tape member is constituted by a release tape and an adhesive tape adhered to the release tape, and the adhesive tape cut to a predetermined length is horizontally attached to the upper surface of the side part of the adherend member. A sticking device for sticking,
A supply reel disposed on the outer side of one end in the width direction of the adherend member and wound with the tape member;
The pressure-sensitive adhesive tape, which is disposed outside the other end in the width direction of the adherend member and is drawn out from the supply reel with the adhesive tape facing downward and cut to a predetermined length, is adhered to and removed from the adherend member. A take-up reel that winds up the release tape of the tape member,
Pressurization for adhering the adhesive tape cut to a predetermined length by being driven in the up and down direction and driven in the downward direction above the adherend member to the upper surface of the side portion of the adherend member Tools and
The adhesive tape that is provided outside one end side and the other end side in the width direction of the adherend member and cut to a predetermined length approaches the upper surface of the side portion of the adherend member so as to face each other. A pair of guide rollers for guiding the tape member;
The release tape, which is integrally provided with one guide roller located on the other end side and is engaged with the one guide roller, is disposed outside the other end side in the width direction of the adherend member. A peeling roller for guiding in a direction to peel from the adhesive tape attached to the upper surface of the side of the sticking member;
A chuck mechanism that is provided on the outer side of the other end in the width direction of the adherend member with respect to the peeling roller and sandwiches the portion of the release tape from which the adhesive tape has been removed so as to be openable and closable;
When the pressing tool driven in the downward direction and having the adhesive tape adhered to the upper surface of the side of the adherend ascends, the one guide roller and the peeling roller are connected to the adherend and the addition member. A first driving means for separating the release tape from the adhesive tape that has entered between the pressure tool and adhered to the upper surface of the side of the adherend member;
The release tape is peeled off from the adhesive tape attached to the adherend member, and the one guide roller and the release roller are moved between the adherend member and the pressure tool by the first driving means. When driven in the retreating direction, the chuck mechanism holding the release tape is driven in the same direction as the direction in which the one guide roller and the peeling roller are driven to feed the tape member from the supply reel. A tape member sticking apparatus, comprising: a second driving means for causing the tape member to stick. A buffer means for holding the tape member fed from the supply reel in a slack state with a predetermined tension is provided,
When the part of the tape member facing the adherend member is pressed by the pressure tool, the buffer member resists the holding force of the buffer means in accordance with the lowering of the pressure tool. The tape member sticking device according to claim 1, wherein the tape member sticking device is drawn out from the tape. The one guide roller and the peeling roller are provided on a flat mounting member so that the peeling roller is positioned above the guide roller,
2. The tape member sticking apparatus according to claim 1, wherein the first driving means reciprocates the attachment member in a horizontal direction along a width direction of the attached member.

Images