JP3433664B2 - Tape cutting and crimping equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a TA having a low rigidity.
In order to prevent the warping of the B tape, the TAB tape which is in the form of a band and is intermittently fed is cut and heated on a metal reinforcing plate called a stiffener which is intermittently fed. , A tape device capable of performing a process from punching of a TAB tape to pressure bonding to a stiffener with high accuracy, simplicity, efficiency, speed, and low cost. The present invention relates to a cutting and pressing device. 2. Description of the Related Art In recent years, electronic components such as ICs, LSIs, and liquid crystal panels are often mounted on a film carrier tape, and the film carrier tape is used as a connection terminal to other circuits. Then, such a film carrier tape is generally called TAB (: Tape Automate).
d Bonding) tape. This TAB
Since the tape is very thin, it tends to be warped and is not easy to handle. Therefore, in order to supplement the rigidity of the electronic component at a stage before the electronic component is attached, a technique of bonding a reinforcing plate made of a metal such as a copper alloy or stainless steel and generally called a stiffener to a TAB tape is known. ing. Conventionally, in order to press-bond a TAB tape to a stiffener, first, a band-shaped TAB tape in which an adhesive which generates tackiness by heating is adhered to a surface to be joined to the stiffener by a mold is used. Punch in shape. Then, the suction head 51 is moved in the direction of arrow A by using an apparatus having a mechanism as shown in FIGS. 7A and 7B, and the punched TA positioned on the mold 52 is moved.
The B tape 53 is sucked and held. Next, TAB tape 5
The suction head 51 holding 3 is moved via the actuator 54 so as to come over the image camera 55.
Then, image processing and the like are performed via the image camera 55,
The displacement of the holding position of the TAB tape 53 by the suction head 51 is corrected based on the image information. Furthermore, TAB
The suction head 51 holding the tape 53 is moved via an actuator 54 so as to be guided by a guide rail 56 of another stage and to come above a predetermined pressure contact position of a stiffener 58 positioned above a heater 57. . Then, the suction head 5 holding the TAB tape 53
1 is moved in the direction of arrow A, and the TAB tape 53 is pressed against the stiffener 58. As a result, the adhesive of the TAB tape 53 becomes tacky, so that the TAB tape 53 is adhered to the stiffener 58. [0004] However, in such a method, steps such as punching, sucking, moving on an image camera, positioning, moving, and pressing a stiffener on a TAB tape are complicated. Therefore, it takes a lot of time to press the TAB tape on the stiffener, which increases the work load. Further, the cost is high due to the positioning adjustment for maintaining the accuracy of the bonding position between the TAB tape and the stiffener with high accuracy. The present invention solves such problems by simplifying the process from positioning and punching of the cutting position of the TAB tape to positioning and crimping of the crimping position to the stiffener with high accuracy and simplicity. It is another object of the present invention to provide a tape cutting and pressing device which can be efficiently, speedily and at low cost. [0006] In order to solve the above-mentioned problems, a tape cutting and pressing device according to the present invention uses a pilot hole for a tape to position a tape at a cutting position, and a tape pilot pin for positioning a tape at a predetermined position. After punching into a shape, a mold having a punch for sucking and holding, a stiffener pilot pin for positioning a stiffener set at a lower portion of the mold, and a temporary crimping section including a heater for heating the stiffener, There is provided a press bonding plate and a heater downstream of the crimping portion, and a final crimping portion for pressing the TAB tape against the stiffener again. [0007] More specifically, the present invention is configured as follows. The present invention is directed to an apparatus that cuts a strip-shaped TAB tape having an adhesive surface that is tacky by heating, and then heats and presses the TAB tape on a stiffener. This tape cutting and pressing device is characterized by the following configuration. (1) The apparatus of the present invention has a temporary crimping section that punches out a TAB tape and presses it against a stiffener, and a main pressurizing section that further presses the TAB tape and the stiffener that have been temporarily pressed. (2) The temporary crimping section is composed of the following members. (a) A pilot pin for a tape for positioning the TAB tape at a cutting position by being fitted into a pilot hole of the TAB tape. (b) The TAB tape is punched into a predetermined shape by moving in one direction, and the TAB tape punched into the predetermined shape is sucked and held.
A mold having a punch capable of pressing an AB tape against a stiffener set below the mold. (c) A stiffener pilot pin that fits into a pilot hole formed in the stiffener to position the stiffener at the pressure bonding position of the TAB tape. (d) A heater that is provided so that a punch that presses the TAB tape against the stiffener abuts and that heats a region of the stiffener that is positioned and adheres to the TAB tape. (3) The pilot pin for the tape and the pilot pin for the stiffener of the temporary crimping section are attached to the mold so as to move in the moving direction of the punch. (4) The final crimping section is provided such that the press machine has a press plate capable of pressing the entire joint portion between the TAB tape and the stiffener temporarily crimped by the temporary crimping section, and the press machine abuts, and And a heater for heating the stiffener at the press position, and the TAB tape and the stiffener are pressed again. (5) Further, the final pressure bonding section is disposed at a position downstream of the temporary pressure bonding section of the stiffener to be conveyed. An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a front view showing an entire configuration of an embodiment of a tape cutting and pressing device according to the present invention. FIG. 2 is a plan view of a TAB tape used in the present embodiment, and FIG. 3 is a plan view showing a state in which the TAB tape is adhered to a stiffener used in the present embodiment. FIG. 4 is a front view of the tape cutting and crimping die of the present embodiment, and a part thereof is shown in cross section. FIG. 5 is a side view of the mold of FIG. 6 (a) to 6 (d) are views showing an operation state of the tape cutting and crimping die of this embodiment, (a) is a sectional view of a main part of the tape cutting and crimping die in an initial state, and (b) is Main part sectional view of the tape cutting pressure bonding mold in the tape positioning state,
(c) is a sectional view of a principal part of the tape-cut crimping die in a stiffener positioning state, and (d) is a sectional view of a principal part of the tape-cut crimping die in a tape crimping state. First, the TA used in this embodiment is
The B tape and the stiffener will be described. As shown in FIG. 2, the TAB tape 1 is formed in a belt shape. The TAB tape 1 includes a pair of circular TAs.
A pilot hole 1a for the B tape is formed across a region 1b masked in a katakana square in the figure. The TAB tape 1 has an adhesive that melts by heating adhered to the surface to be pressed against the stiffener. As shown in FIG. 3, the stiffener 2 is formed in a belt shape, and circular pilot holes 2a are formed at predetermined intervals on both sides in the longitudinal direction. A rectangular hole 2b is formed at a position surrounded by the four pilot holes 2a. Further, the TAB tape 1 cut in a katakana square shape is adhered to the stiffener 2 which has been subjected to a pressure bonding process by a device described later, so as to surround the hole 2b. The cut TAB tape 1 is obtained by first cutting a strip-shaped tape into a rectangular shape only in a predetermined region by a device described later, and bonding the tape to the stiffener 2 one by one. The product obtained by bonding the TAB tape 1 to the stiffener 2 in this manner is a completed product as an electronic component by joining an IC package or the like on the TAB tape 1 and separating the IC package and the like. Next, the overall configuration of this embodiment will be described. As shown in FIG. 1, the tape cutting and pressure bonding apparatus of the present embodiment includes a temporary pressure bonding section 3 for punching out a TAB tape and pressing the stiffener and a temporary pressure bonding section 4 for further pressing the temporarily pressed TAB tape and the stiffener. Have. As shown in FIGS. 4 and 5, the temporary crimping section 3 includes a tape pilot pin 5, a mold having a punch 6, a stiffener pilot pin 7, and a heater 8 for heating the stiffener 2. Have. The mold comprises a punch 6, a base 9, a column 10
, A base 11, a cylinder 12, a piston 13, a slide plate 14, and a guide block 15. The base 9 constituting the die of the mold has 4
Pillar 1 of book (only two shown in FIGS. 4 and 5)
The cylinders 12 are mounted on stands 11 supported by them. And the piston 13 operated by the cylinder 12
It extends downward through the base 11. The slide plate 14 is attached to the column 10 so as to be able to move up and down, and is attached to the tip of the piston 13 at the center. Therefore, the slide plate 14
Moves up and down in conjunction with the up and down movement of the piston 13. The slide plate 14 has a die punch 6
The tip of the punch 6 is guided by a guide hole 15a of a guide block 15 fixed to the base 9 to move up and down. At the tip of the punch 6, a blade 6a for cutting a predetermined area from the TAB tape
And a suction hole 6b for sucking and holding the TAB tape 1 cut into a predetermined shape by a vacuum pump or the like (not shown).
And a pressing portion 6c for pressing the cut TAB tape 1 against the stiffener 2. In addition, on the base 9,
A die hole 9a paired with the punch 6 is formed. A gap S is provided between the base 9 and the guide block 15. In this gap S, a belt-like TAB
The tape 1 is disposed, and in FIG. 4, the TAB tape 1 is intermittently fed in a direction perpendicular to the paper surface. The tape pilot pin 5 is formed in a rod shape whose main body is slightly smaller than the diameter of the tape pilot hole 1a of the TAB tape 1, and has a tip 5a.
Are formed to be tapered. The pilot pin 5 for tape corrects the position of the TAB tape 1 so as to come to a predetermined cutting position by being fitted into the pilot hole 1a for tape, and regulates the horizontal position of the TAB tape 1 at the corrected position. It is supposed to. The stiffener pilot pin 7 is formed in a rod shape whose diameter is slightly smaller than the diameter of the stiffener pilot hole 2a of the stiffener 2, and the tip 7a is tapered. .
Then, the stiffener pilot pin 7 is fitted into the stiffener pilot hole 2a so that the stiffener 2 set below the mold is attached to the TAB tape 1.
The position of the stiffener 2 is adjusted so as to come to the crimping position of the stiffener 2, and the corrected position restricts the horizontal movement of the stiffener 2. The pilot pin 5 for the tape and the pilot pin 7 for the stiffener are
And guide holes 14a, 14b, 15b, 15c, 9 provided in the guide block 15, and the base 9, respectively.
Each of four ends (only one is shown in FIG. 5) passing through b and 9c is attached to the slide plate 14 such that its ends 5b and 7b are supported by the slide plate 14. These pilot pins 5, 7 are
Each of them can be moved up and down together with the slide plate 14, and the up and down movement is guided by respective guide holes 9 b and 9 c formed in the base 9. Therefore, the tape pilot pin 5 and the stiffener pilot pin 7 can be moved along the moving direction of the punch 4. When the pilot pins 5 and 7 descend, the respective flanges 5
After c and 7c hit the guide block 15,
By compressing the respective springs 16 and 17, the slide plate 1
Only four can be lowered. As shown in FIG. 5, a guide rail 18 for guiding the stiffener 2 is disposed below the base 9. The guide rail 18 has a U-shaped cross section with a shallow bottom, and a relief hole 18a is formed at the bottom in accordance with the pitch of the stiffener pilot hole 9c. The bottom of the guide rail 18 is
The position below the die hole 9a formed in the base 9 is missing only in a predetermined area, and the heater 8 faces there. The heater 8 is provided such that a punch 6 for pressing the TAB tape 1 against the stiffener 2 abuts thereon, and can directly heat an area of the stiffener 2 facing the punch. The stiffener 2 is intermittently fed in the right direction in FIG. As shown in FIG. 1, the press bonding section 6 includes a press having a press plate 23 and a heater 24 for heating the stiffener 2 at the press position.
Further, the final pressure bonding section 6 is disposed at a downstream position (right side in FIG. 1) from the temporary pressure bonding section of the stiffener conveyed by a conveyance device (not shown). The press machine comprises a press plate 23, a base 25
, Column 26, table 27, cylinder 28, piston 2
9. On the base 25, four (only two are shown in FIG. 1) columns 26 are erected, and a cylinder 28 is mounted on a base 27 supported by them. . A piston 29 operated by the cylinder 28 extends downward through the base 27. The press plate 25 is attached to the tip of the piston 26, and moves up and down in conjunction with the up and down movement of the piston 26. The press plate 25 has a surface large enough to press the entire joint between the TAB tape and the stiffener that have been temporarily pressed. Heater 24 is TAB to stiffener 2
A press plate 23 for pressing the tape 1 is provided so as to abut, and a region of the stiffener 2 facing the press plate 23 can be directly heated. In addition, as shown in FIG. 4, stiffener positioning mechanisms 20 for adjusting the transport position of the stiffener 2 are provided on both sides of the mold before punching the TAB tape with the mold. Is also good. In the case of the present embodiment, a cylinder 21 is attached to the base 9, and a stiffener pilot pin 22 is attached to the tip of the piston 21 a. The stiffener pilot pin 22 is moved up and down by a piston 21a,
The vertical movement is guided by a guide hole 9d formed in the base 9. The stiffener pilot pin 22 is formed in a rod shape having a diameter of the main body larger than the diameter of the stiffener pilot hole 2 a of the stiffener 2, and is formed so that a tip portion 22 a is tapered. The stiffener pilot pin 22 is fitted in the stiffener pilot hole 2a to correct the position of the stiffener 2 set below the die so that the stiffener 2 comes to the pressure bonding position of the TAB tape 1. Further, the stiffener positioning mechanism 20 includes a detector (not shown) for detecting a displacement when the position of the stiffener is displaced such that the stiffener pilot pin 22 cannot be fitted into the stiffener pilot hole 2a by a predetermined amount. Is provided.
When the stiffener 2 is conveyed by a feed mechanism (not shown), the cylinder 21 is operated at that position, and the stiffener pilot pin 22 descends via the piston 21a and is fitted into the stiffener pilot hole 2a, thereby causing the stiffener 2 to be fitted. 2 is corrected. Next, an operation of pressing the TAB tape to the stiffener of the apparatus of the present embodiment will be described with reference to FIG.
First, in FIG. 6 (a), when the belt-shaped TAB tape 1 and the stiffener 2 are respectively conveyed to predetermined locations and stopped by a feed mechanism (not shown), the cylinder 12 starts operating and the piston 13 and the slide plate 14 are moved. The pilot pin 5 for the tape and the pilot pin 7 for the stiffener start to descend together with the punch 6. First, as shown in FIG. 6 (b), four tape pilot pins 5 whose number is omitted in the figure are formed on both sides of the square-shaped area of the belt-shaped TAB tape 1. Hole 1
a, the horizontal position of the TAB tape 1 is corrected by the distal end portion 5a, and the position is fixed by the outer peripheral portion, thereby restricting the horizontal movement of the TAB tape 1. Next, as shown in FIG.
Is continuously lowered to punch out a predetermined square-shaped area from the strip-shaped TAB tape 1, and is further lowered while sucking and holding the punched-out TAB tape 1 through a suction hole 6 b by a vacuum pump (not shown). to continue. At this time, the pilot pin 7 for the stiffener 2 also descends, fits into the pilot hole 2a of the stiffener 2, corrects the position of the stiffener 2 by its tip portion 7a, and fixes its position by the outer peripheral portion. Regulate movement in the direction. Further, as shown in FIG.
Descends and punches TAB tape 1 into stiffener 2
To hit the heater 8 with the TAB tape 1 and the stiffener 2 sandwiched therebetween. Therefore, TAB
The adhesive adhered to the tape 1 is heated by the heater 8 via the stiffener 2 to generate tackiness, and
The B tape 1 is bonded to the stiffener 2. At this time, the stiffener 2 and the TAB are sucked by using a vacuum pump (not shown) to suck air through the suction holes 6b.
The pressure-bonded portion with the tape 1 is kept in a vacuum state. After pressing for a certain period of time, the vacuum state is released, the cylinder 12 operates in the returning direction (upward), and the pilot pin 5 for tape and the pilot pin 7 for stiffener move up together with the punch 6, and FIG. To the position. Thereby, one cycle of operation in the temporary crimping section 3 is completed. After repeating this cycle a required number of times, the stiffener 2 is moved to the final crimping section 4 by a transport mechanism (not shown).
Transported to In the final crimping section 4, the cylinder 28 operates to lower the press plate 23 via the piston 29 from the state shown in FIG. 1. Then, the press plate 23 presses the entire surface of the stiffener 2 to which the TAB tape 1 is adhered, and hits the heater 8 while sandwiching the stiffener 2 to which the TAB tape 1 is adhered. Then, the adhesive adhered to the TAB tape 1 is heated again by the heater 24 below the stiffener 2, and the adhesiveness to the stiffener 2 is generated. As a result, the TAB tape 1 and the stiffener 2 having a portion where the temporary bonding portion is not strongly pressed against the stiffener 2 and faces the bonding state is insufficient because the suction hole 6b of the punch 6 faces the suction hole 6b. Sufficiently adhered. After pressing for a certain time, the cylinder 28 operates in the return direction (upward), and the press plate 23 returns to the initial position. Thereby, the operation of one cycle in the final crimping section 4 is completed. After repeating this cycle the required number of times, the TAB tape 1
Is completed. Therefore, according to the present embodiment, all steps from the positioning and punching of the TAB tape to the positioning of the stiffener and the pressing of the punched TAB tape to the stiffener are performed in the same die in the die. Can be performed in the same direction, so that the operation can be simplified, and the position of the TAB tape in the IC can be made highly accurate without providing a position detecting means. As described above, according to the present invention, the process from positioning of the TAB tape to pressure bonding to the stiffener is accurately, simplified, efficiently, and speedily. Moreover, it can be performed at low cost.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view showing a configuration of an embodiment of a tape cutting and pressing device of the present invention. FIG. 2 is a plan view of a TAB tape used in the embodiment. FIG. 3 is a plan view showing a state in which a TAB tape is attached to a stiffener in the present embodiment. FIG. 4 is a front view of the tape cutting and crimping die of the present embodiment, a part of which is shown in cross section. FIG. 5 is a side view of the tape cutting and crimping die of the present embodiment, a part of which is shown in cross section. FIGS. 6A and 6B are diagrams showing an operation state of the tape cutting and crimping die of the present embodiment, wherein FIG. 6A is a sectional view of a main part of the tape cutting and crimping die in an initial state, and FIG. FIG. 3C is a cross-sectional view of a main part of the crimping die, FIG. 4C is a cross-sectional view of a main part of the tape-cut crimping die in a stiffener positioning state, and FIG. FIG. 7 is an explanatory view of a main part of a conventional tape cutting and pressing device, wherein (a) is a plan view of the main part and (b) is a front view of the main part. 1 TAB tape 1a Pilot hole for tape 2 Stiffener 2a Pilot hole 2b for stiffener 3 Temporary crimping part 4 Final crimping part 5 Pilot pin 5a, 7a for tape 5b, 7b End 5c, 7c Flange 6 Punch 6a Blade 6b Suction hole 6c Pressing portion 7 Stiffener pilot pin 8, 24 Heater 9, 25 Base 9a Die holes 9b, 9c, 9d, 14a, 14b, 15b, 15c,
Guide holes 10, 26 Columns 11, 27 Bases 12, 28 Cylinders 13, 29 Pistons 14 Slide plates 15 Guide blocks 16, 17 Springs 18 Guide rails 18a Escape holes

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01L 21/50 H01L 21/60 H01L 21/68 H01L 23/12 H05K 1/02 H05K 3/00

Claims (1)

(57) [Claim 1] In a device for heating and pressing a stiffener to a stiffener after individually cutting a strip-shaped TAB tape having an adhesive surface which becomes tacky by heating, a pilot hole of the TAB tape is provided. A tape pilot pin for positioning the TAB tape at the cutting position by fitting the
The TAB tape is punched into a predetermined shape by moving in one direction, and the TA
TAB which sucks and holds B tape, and further sucks and holds
A mold having a punch capable of pressing the tape against a stiffener set below the mold, a stiffener pilot pin for positioning the stiffener at a pressure bonding position of the TAB tape by being fitted into a pilot hole formed in the stiffener, T to Stiffener
The punch for pressing the AB tape is provided so as to abut and the TA of the stiffener positioned.
A temporary crimping section comprising a heater for heating an area to be bonded to the B-tape, and wherein the pilot pin for the tape and the pilot pin for the stiffener are attached to the mold so as to move in the moving direction of the punch. And a press machine having a press plate which is disposed at a position downstream of the temporary crimping portion of the stiffener to be conveyed and is capable of pressing the entire bonded portion of the TAB tape and the stiffener temporarily crimped by the temporary crimping portion, and a press plate Characterized by having a heater for heating the stiffener at the press position, and having a final pressure bonding portion for pressing the TAB tape and the stiffener again. apparatus.