JP3324393B2 - Anisotropic conductive tape sticking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for attaching an anisotropic conductive tape to an object such as a liquid crystal panel or an electronic component.

[0002]

2. Description of the Related Art As a method for mounting an electronic component on a substrate,
A method using an anisotropic conductive tape (hereinafter, referred to as ACF) is known. ACF is an adhesive tape, which is adhered to the electrodes of a substrate such as a liquid crystal panel, and the leads of the electronic component are bonded from above, or this is previously adhered to the lower surface of the leads of the electronic component. After wearing
A method of bonding on an electrode of a substrate is known.

Since the ACF has an adhesive property and is difficult to handle as it is, a separate tape is laminated on one or both sides of the ACF to form a two-layer or three-layer laminated tape, and this laminated tape is wound around a supply reel. Turned and handled. When the ACF is attached to an object such as an electrode of a substrate or a lead of an electronic component, the laminated tape is pulled out from the supply reel. In this case, in order to perform the attachment successfully, the laminated tape is removed from the supply reel. In the case of a laminated tape having a three-layer structure, it is necessary to peel one of the separated tapes reliably from the pulled-out laminated tape. Further, after the ACF is attached to the object, the separate tape peeled off from the ACF must be reliably collected.

[0004]

However, there has not been established a technique for stably pulling out a laminated tape from a take-up reel, peeling a separate tape from an ACF, and collecting the separated tape. Therefore, there has been a problem that it is difficult to stably attach the ACF.

Accordingly, an object of the present invention is to provide an apparatus for attaching an anisotropic conductive tape which can stably attach an ACF to an object such as an electrode of a substrate or a lead of an electronic component.

[0006]

SUMMARY OF THE INVENTION claim 1 invention includes a supply reel for winding the laminated tape formed by laminating a separate tape on the surface of the anisotropic conductive tape, pulled out anisotropic conductive
Laminated tape made of electrical tape and separate tape
A cutter for cutting the anisotropic conductive tape;
A sticking tool for pressing the cut anisotropic conductive tape against the object and sticking the same, and transporting the separate tape.
The anisotropic conductive tape cut by the cutter
A pull-out means for pulling out below the sticking tool; and a pull-down means which is separated from the anisotropic conductive tape downstream of the sticking tool and stuck to the object and carried by the pull-out means.
With a collecting means for collecting the sent separate tape,
This collecting means was constituted by a suction unit for vacuum-suctioning the separate tape.

According to a second aspect of the present invention, there is provided a supply reel for winding a three-layer laminated tape in which a separate tape is laminated on both surfaces of an anisotropic conductive tape, and one of the laminated tapes drawn out from the supply reel. A suction unit that separates and collects the separate tape from the anisotropic conductive tape by vacuum suction and the one separate tape is
Separate tape and anisotropic after being collected in the part
Anisotropic among two-layer laminated tape consisting of conductive tape
A cutter for cutting the conductive tape;
By attaching the anisotropic conductive tape to the target object by pressing the applied tool, and by transporting the separate tape
Apply the anisotropic conductive tape cut by the cutter
Withdrawal means for pulling out below the tool
Anisotropic conductive tape attached to the object downstream of
And was conveyed by the pull-out means
A collecting means for collecting the separate tape was provided.

[0008] A third aspect of the present invention, in addition to the second aspect of the present invention, before Kikai yield means has a second suction unit for vacuum and a separate tape.

[0009]

According to the first aspect of the present invention, after the anisotropic conductive tape is attached to the object, the separate tape can be stably collected by vacuum suction using the suction unit.

According to the second aspect of the present invention, one of the separate tapes of the three-layered laminated tape is vacuum-sucked by the suction unit to be peeled off from the anisotropic conductive tape, and then the anisotropic conductive tape is removed from the object tape. Can be stably stuck.

According to the third aspect of the invention, after the anisotropic conductive tape is attached to the object, the other separate tape can be stably collected by vacuum suction by the second suction unit.

An embodiment of the present invention will be described below with reference to the drawings. (Embodiment 1) FIG. 1 is a front view of an ACF attaching apparatus according to Embodiment 1 of the present invention, FIG. 2 is a cross-sectional view of a tension applying means of the laminated tape, and FIG. FIG. 4 is a side sectional view of a suction portion of the separate tape.

In FIG. 1, reference numeral 1 denotes a main body frame;
Elements described below are provided. Reference numeral 2 denotes a supply reel on which a laminated tape 3 is wound. As shown in FIG. 2, the laminated tape 3 has a three-layer structure in which separate tapes 5a and 5b are attached to both surfaces of an ACF 4 and laminated.

In FIG. 1, a pull-out roller 6 is provided above the supply reel 2. Guide rollers 7 and 8 are provided on the left and lower sides of the pull-out roller 6, respectively. The pull-out roller 6 is driven and rotated by a motor M and a belt 9 provided on the back surface of the main body frame 1. FIG.
As shown in (1), a large number of suction holes 10 are formed in the drawing roller 6 radially. The center hole 11 is connected to a first suction device 12 through a tube 13.
Reference numeral 14 denotes a pressure regulating valve provided in the middle of the tube 13.

A half-ring-shaped shutter 15 is provided in the center hole 11 of the drawing roller 6. This shutter 1
Reference numeral 5 is fixed, and closes the suction hole 10 located in the lower half of the multiple suction holes 10 formed radially. When the first suction device 12 is driven to suck the center hole 11, the separate tape 5 b running along the peripheral surface of the upper half portion of the pull-out roller 6 is vacuum-sucked and held, whereby the separate tape 5 b is held. Can be prevented from slipping on the peripheral surface of the pull-out roller 6, and the ACF 4 can be reliably pulled out from the supply reel 2. As means for holding the separate tape 5b, other than the present embodiment, the peripheral surface of the pull-out roller 6 may be roughened,
Alternatively, the pull-out roller 6 may be formed of a material having a large coefficient of friction, and various specific means are conceivable.

In FIG. 1 and FIG. 2, a suction case 20 made of a transparent bottomed cylindrical body is provided between the pull-out roller 6 and the guide roller 7. The bottom of the suction case 20 is connected to a second suction device 23 via a tube 21 and a pressure regulating valve 22 (see also FIG. 1). Therefore, by driving the second suction device 23 to vacuum-suction the inside of the suction case 20, the laminated tape 3 hanging down in the suction case 20 is vacuum-sucked to apply a predetermined tension to the laminated tape 3. That is, the elements denoted by reference numerals 20 to 23 are the tension applying means 19. in this case,
By vacuum-suctioning the laminated tape held by the draw-out roller 6, a predetermined amount of tension is reliably applied to the laminated tape 3 on the downstream side of the draw-out roller 6, and the ACF 4 is reliably transferred to the suction case 20. Can be transported.

A first part is located above the side of the suction case 20.
A sensor 24 is provided, and a second sensor 25 is provided below. The first sensor 24 and the second sensor 25 optically detect the lower end of the laminated tape that hangs inside the suction case 20, that is, the amount of slack,
The control unit 26 is notified.

In FIG. 1, a guide roller 29 is provided above the supply reel 2, and a suction unit 30 for collecting the separate tape 5a is further provided above the guide roller 29. In FIGS. 3 and 4, reference numeral 31 denotes a case that is a main component of the suction unit 30. The inside of the case 31 is partitioned into a front chamber A and a rear chamber B by a porous ventilation plate 32. A transparent plate 33 for visually recognizing the inside of the case 31 is provided on the front surface of the case 31.
Is mounted, and a tube 34 connected to the first suction device 12 is connected to the back surface. 34a is a joint of the tube 34, and 35 is a pressure regulating valve provided in the middle of the tube 34. An introduction portion 36 for the separate tape 5a is provided on the side surface of the front room A.

Therefore, when the first suction device 12 is driven, one of the separate tapes 5 a is vacuum-sucked by the suction portion 30 between the supply reel 2 and the pull-out roller 6, and is forcibly peeled off from the ACF 4. Front room A
It is sucked into and collected. In this case, by appropriately adjusting the suction force in the case 31, the separate tape 5a can always be peeled off from the ACF 4 with a predetermined strength and collected. The other separate tape 5b of the laminated tape 3
Is lightly held on the peripheral surface of the pull-out roller 6, so that the separate tape 5a can be sucked into the case 31 and reliably separated. The separate tape 5a collected in the front room A is detached from the hinge 37 by removing the hook 38.
By rotating the front wall 31a around the center, it can be easily taken out and collected.

In FIG. 1, a suction block 40 is provided below the main body frame 1. Suction block 40
Inside the suction hole 41 connected to the second suction device 23
Are formed. 42 is a pressure regulating valve. The laminated tape 3 around the guide roller 8 is separated from the separated tape 5b.
With the ACF 4 on the lower side and the right side along the lower surface of the suction block 40. A cutter 43 is provided below the suction block 40. The cutter 43 is driven by the actuator 44 to move up and down, and cuts the lower ACF 4 of the laminated tape 3 at a predetermined pitch from among the laminated tapes 3 which are vacuum-adsorbed on the lower surface of the suction block 40 and whose traveling is temporarily stopped.

In FIG. 1, a movable table 50 is provided on the side of the main body frame 1. Movable table 50
A substrate 51 to which the ACF 4 is to be attached is placed on the top. By driving the movable table 50,
The substrate 51 moves in an arbitrary direction, and its position is adjusted.
A sticking tool 52 is provided above the movable table 50. The sticking tool 52 is driven up and down by a vertical moving means (not shown) to push the ACF 4 against the substrate 51 and stick it.

A take-up reel 53 is provided downstream of the movable table 50. Reference numerals 54 and 55 denote transport rollers provided between the movable table 50 and the take-up reel 53, and chuck the separate tape 5b from above and below and transport it to the right. 56 is a guide roller. The take-up reel 53 and the transport rollers 54 and 55 are driven and rotated by a motor (not shown). The transport rollers 54 and 55 pull the separate tape 5 b rightward while taking up the take-up reel 5.
3 to the ACF 4 by the cutter 43.
Is reliably cut into a predetermined length, and the cutting means draws out the cut ACF 4 below the attaching tool 52.

The ACF sticking apparatus is configured as described above. Next, the operation of sticking the ACF 4 on the substrate 51 will be described. In FIG. 1, the laminated tape 3 wound on the supply reel 2 is pulled out from the supply reel 2 by rotation of the drawer roller 6. One of the separate tapes 5 a is vacuum-suctioned by the driving of the suction unit 30, is forcibly peeled off from the ACF 4 before the pull-out roller 6, and is collected inside the case 31.

The laminated tape 3 having a two-layer structure of the ACF 4 and the other separate tape 5b circulates along the pull-out roller 6, runs down in the suction case 20, and then circulates the guide roller 7. Further lower guide roller 8
And go to the right in a horizontal position. Next, the laminated tape 3 is vacuum-sucked on the lower surface of the suction block 40 and temporarily stops running, whereupon the cutter 43 moves up and down, whereby the ACF 4 is cut into a predetermined length.

Next, the vacuum suction of the suction block 40 is released, and the laminated tape 3 travels rightward, and the ACF 4 cut by the cutter 43 reaches the upper surface of the substrate 51, where the traveling is temporarily stopped. . Next, the attaching tool 52 is lowered and
The CF4 is pressed onto the electrode of the substrate 51 to be bonded, and then the bonding tool 52 is lifted to release the pressed state. AC
The separate tape 5b separated from the ACF 4 by attaching the F4 to the substrate 51 is taken up on the take-up reel 53 and collected. The take-up reel 53 and the transport rollers 54 and 55 are controlled by control means (not shown) so as to rotate when the separate tape 5b needs to run.

As described above, when the attaching tool 52 is moved up and down to attach the ACF 4 to the substrate 51, the laminated tape 3 needs to be positioned on the substrate 51 in a horizontal posture with an appropriate tension. . Therefore, the laminated tape 3 in the suction case 20 is sucked downward, and the transport rollers 54,
At 55, a predetermined tension is applied to the laminated tape 3 by chucking and pulling the separate tape 5b.

If the first sensor 24 detects the lower end of the laminated tape 3,
Since the feeding amount is small, the drawer roller 6 is rotated to increase the feeding amount. If the second sensor 25 detects the lower end of the laminated tape 3, the rotation of the draw-out roller 6 is stopped because the amount of the laminated tape 3 fed from the supply reel 2 is too large. That is, the pull-out roller 6, the first sensor 24, the second sensor 25, the control unit 26, the motor M
Is a means for managing the amount of feeding of the laminated tape 3.

(Embodiment 2) FIG. 5 is a front view of an ACF attaching apparatus according to Embodiment 2 of the present invention. The ACF sticking apparatus according to the second embodiment is the same as that according to the first embodiment.
A second suction unit 30a is provided instead of the take-up reel 53 of the sticking device of F. The structure of the second suction unit 30a is the same as that of the suction unit 30 described above. Chuck members 57 and 58 are provided as pull-out means in place of the transport rollers 54 and 55. The chucks 57 and 58 chuck the separate tape 5b from above and below, and are driven by a drive unit (not shown) to pull the separate tape 5b rightward, thereby pulling out the ACF 4 below the attaching tool 52.
The same elements as those in the first embodiment are denoted by the same reference numerals, and description thereof will be omitted.

Therefore, in this case, the separate tape 5b peeled off from the ACF 4 is collected by being sucked into the case 31 by vacuum. The separate tape 5a collected in the front room A is detached from the hinge 3 by removing the hook 38.
By rotating the front wall 31a around the center 7 and opening it, it can be easily taken out and collected. By appropriately adjusting the suction force of the second suction portion 30a, the separation tape 5b is constantly pulled and collected with a constant force, and a predetermined tension is applied to the separation tape 5b to apply the bonding tape 52.
ACF4 attaching operation can be performed.

Incidentally, the laminated tape 3 of the above embodiment is
Has a three-layer structure in which separate tapes 5a and 5b are adhered to both sides of ACF4.
There is also a two-layer structure in which a separate tape is adhered to only one side of the film. In the case of such a laminated tape having a two-layer structure, one of the separate tapes 5 shown in FIGS.
a does not exist, and only the other separate tape 5b is AC
Affixed to F4. Therefore, in this case, it is not necessary to separate and collect one of the separate tapes 5a from the ACF 4, so that the guide roller 29 and the suction unit 30 shown in FIGS. 1 and 5 do not need to be used or are unnecessary. As described above, the present invention can be applied to any laminated tape having a two-layer structure or a three-layer structure.

[0031]

According to the first aspect of the present invention, after the anisotropic conductive tape is attached to the object, the separate tape can be stably collected by vacuum suction by the suction unit.

According to the second aspect of the present invention, one of the separate tapes of the three-layered laminated tape is vacuum-suctioned by the suction section to be peeled off from the anisotropic conductive tape. Can be stably stuck.

According to the second aspect of the present invention, one of the separated tapes of the laminated tape fed from the supply reel is sucked by the suction portion to be separated from the ACF, and then the AC tape is separated.
F can be stably stuck to an object.

According to the third aspect of the present invention, after the anisotropic conductive tape is attached to the object, the other separate tape can be stably collected by vacuum suction using the second suction unit.

[Brief description of the drawings]

FIG. 1 is a front view of an ACF attaching device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a laminated tape tension applying means of the ACF attaching apparatus according to the first embodiment of the present invention;

FIG. 3 is a front sectional view of a suction portion of a separate tape of the ACF adhering device according to the first embodiment of the present invention.

FIG. 4 is a side sectional view of a suction portion of a separate tape of the ACF attaching device according to the first embodiment of the present invention.

FIG. 5 is a front view of an ACF attaching device according to a second embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 2 supply reel 3 laminated tape 4 anisotropic conductive tape (ACF) 5a, 5b separate tape 6 pull-out roller 12 first suction device 19 tension applying means 20 suction case 23 second suction device 30 suction unit 31 case 30a second Suction unit 40 Suction block 43 Cutter 50 Movable table 51 Substrate 52 Adhesion tool 53 Take-up reel 54, 55 Transport roller 57, 58 Chuck

──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-7-270742 (JP, A) JP-A-6-77691 (JP, A) JP-A-6-334395 (JP, A) JP-A-7-270 86790 (JP, A) JP-A-8-88497 (JP, A) JP-A-7-326886 (JP, A) JP-A-8-8583 (JP, A) JP-A-7-307366 (JP, A) (58) Field surveyed (Int. Cl. ⁷ , DB name) H05K 13/02

Claims (3)

(57) [Claims] 1. A supply reel for winding the laminated tape formed by laminating a separate tape on the surface of the anisotropic conductive tape, pulling
Made of anisotropic conductive tape and separate tape
Cutter for cutting anisotropic conductive tape among laminated tapes
When the sticking tool is adhered by pressing an anisotropic conductive tape that is cut by the cutter to an object, said separate Te
Anisotropically cut by the cutter by transporting
Pulling out conductive conductive tape below the attaching tool
Means, and the object is located downstream of the attaching tool.
Peeled from the attached anisotropic conductive tape and pulled out
An anisotropic conductive tape sticking device, comprising: a collecting means for collecting the separate tape transported by the separating means, wherein the collecting means comprises a suction unit for vacuum-suctioning the separate tape. 2. A supply reel for winding a three-layer laminated tape in which a separate tape is laminated on both surfaces of an anisotropic conductive tape, and one of the laminated tapes drawn out from the supply reel is vacuumed. a suction unit for collecting peeled from the anisotropic conductive tape by suction, the
After one of the separate tapes is collected by the suction unit
Consists of separate tape and anisotropic conductive tape
Cutting the anisotropic conductive tape out of the two-layer laminated tape
A sticking tool of attaching the cutter and the anisotropic conductive tape is cut by the cutter against the object that the separator
Cut by the cutter by feeding the rate tape.
Pull out the anisotropic conductive tape below
Drawer means, and the
Before being peeled off from the anisotropic conductive tape attached to the object
The separate tape transported by the drawer
An attaching device for an anisotropic conductive tape, comprising a collecting means for collecting . 3. Before Machinery yield means anisotropic conductive tape attaching apparatus according to claim 2, characterized in that it consists of second suction unit for vacuum and a separate tape.