JPH0726715Y2 - TAB product selection jig - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a sorting jig used in the process of inspecting the characteristics of the manufacturing process of TAB (Tape “Automated Bonding) products. Measuring jig for electrical connection with a tester.

[Conventional technology]

Conventionally, this type of TAB product selection jig is shown in FIG. 3 (a),
As shown in (b), an anisotropic conductive rubber 7 having projections 6 on both sides corresponding to the pin hole 8 and the wiring lead pattern 5 of the TAB carrier tape 3, the wiring lead pattern 5 and the positioning hole 4 are formed. The PWB (P'rinted Wiring Boa) having the TAB carrier tape 3 and the wiring lead pattern 11 matching the wiring lead pattern 5 of the TAB carrier tape 3.
rd) 10 and the upper mold 1 having the convex protrusions 2.
9 and 13 are positioning pins and pin headers provided on the PWB 10, 12 is solder, and 14 is a semi-finished TAB product. As a basic operation, the TAB carrier tape 3, the anisotropic conductive rubber 7 and the PWB 10 were brought into contact with each other and pressed from above the TAB carrier tape 3 with a pressing mechanism (not shown) to measure the electrical characteristics.

[Problems to be solved by the device]

In the conventional TAB product selection jig described above, the anisotropic conductive rubber can be placed on the PWB by placing it on the PWB via the positioning pins on the PWB, or by aligning it manually and placing it with tape. There was a way to do it.

The former only puts the anisotropic conductive rubber on the PWB, so the rubber end may roll up while making contact with the TAB carrier tape from above during measurement. As a result, the flatness of the anisotropic conductive rubber deteriorates, and it becomes impossible to make contact with the TAB carrier tape. Also, maintenance is difficult because you have to remove it from the PWB using tweezers when replacing it.

The latter has the drawback that the PWB surface is contaminated by the tape and there is no such thing as a positioning pin to hold down the position shift, so the position shifts after repeated measurements.

An object of the present invention is to provide a TAB product sorting jig that solves the above problems.

[Differences from the Prior Art of Invention]

The present invention is different from the above-described conventional sorting jig in that the periphery of the anisotropic conductive rubber is fixed.

[Means for Solving the Problems]

In order to achieve the above-mentioned object, the TAB product sorting jig according to the present invention has an anisotropic conductive rubber sandwiched between a TAB carrier tape and a PWB, and pressed from above the TAB carrier tape. In a TAB product selection jig in which a TAB carrier tape and a PWB are electrically connected to each other via an electric field, a rectangular anisotropic conductive rubber is fixed around a frame by a frame.

〔Example〕

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

(Embodiment 1) FIG. 1 (a) is a configuration diagram showing Embodiment 1 of the present invention, and FIG. 1 (b) is a sectional view taken along the line AA 'in FIG. 1 (a).

The TAB carrier tape 3 is in the form of a film sheet in which TAB semi-finished products that have been sealed are arranged at regular intervals. The TAB carrier tape 3 is fed to the PWB 10 by a feeding mechanism (not shown).

The anisotropic conductive rubber 7 shown in FIG. 3 (c) is provided with quadrangular and same-shaped protrusions 6 corresponding to the number of pins at positions corresponding to the pitch intervals of the wiring lead patterns 5 of the TAB carrier tape 3. The protrusion 6 has a structure in which metal particles 21 are aggregated as convex fine electrodes 22. This anisotropic conductive rubber 7 can energize only the fine electrodes 22 existing on the surface under pressure.

As shown in FIGS. 1A and 1B, such an anisotropic conductive rubber 7 is attached to a hollow rectangular frame 23. 8 is a pin hole. The back surface of the frame 23 is counterbored to the thickness of the anisotropic conductive rubber 7, and the back surface of the frame 23 and the back surface of the anisotropic conductive rubber 7 are aligned after the attachment. The material of the frame is an insulator, and in this case, it is made of resin.

In addition, the length 1 of the inner frame in the direction perpendicular to the feed is longer than the width 1 of the TAB carrier tape, so that both sides of the TAB carrier tape 3 do not ride on the frame. In addition, the jig has lead patterns 11 matching the pitch of the wiring lead patterns 5 on the TAB carrier tape 3, and the lead patterns 11 are routed to the pin header 13 while avoiding the place where the TAB product is mounted. It has a PWB 10 which has a structure and has positioning pins 9 set up at two positions. The upper die 1 is provided right above the TAB carrier tape 3 and is made of an insulating material. Upper mold 1
The TAB carrier tape 3 has the convex protrusions 2 only in the areas in contact with the wiring lead patterns 5.

The configuration of the sorting jig of the present invention has been described above. Next, the sorting operation will be described. The PWB 10 is fixed on the stage of the sorting apparatus, and the pin header 13 on the PWB 10 is lead-connected to the tester. The frame 23 to which the anisotropic conductive rubber 7 is attached is inserted through the pin in alignment with the positioning pin 9 of the PWB 10. The anisotropic conductive rubber 7 is in surface contact with the PWB 10. The enclosed TAB semi-finished product on the reeled TAB carrier tape 3 is in surface contact with the PWB 10 on which the anisotropic conductive rubber 7 is placed by the feeding mechanism. At that time, T
The positioning hole 4 which also serves as the tape feed of the AB carrier tape 3 is inserted into the positioning pin 9 of the PWB 10 for positioning. Then, the upper die 1 is pressed against the wiring lead pattern 5 of the TAB carrier tape 3 from directly above the TAB carrier tape 3 by a pressing mechanism (not shown) to start the measurement.

(Embodiment 2) FIG. 2 (a) is a configuration diagram showing Embodiment 2 of the present invention, and FIG. 2 (b) is a sectional view taken along the line AA 'in FIG. 2 (a). In this embodiment, the frame 25 for fixing the anisotropic conductive rubber 7 is provided with the positioning holes 24. The frame 25 has a positioning pin 26 inserted into a positioning hole 24 provided in a part of the frame in a position parallel to the feeding direction to provide positional accuracy.

As a result, the position of the rubber is determined by inserting the positioning pin 9 into the pin hole 8 of the anisotropic conductive rubber 7. Further, even if an inadvertent force is applied to the anisotropic conductive rubber 7, the frame is positioned, so that there is an advantage that it is not displaced.

[Effect of device]

As described above, in the present invention, since the periphery of the anisotropic conductive rubber can be fixed with a frame and the frame shape can be installed on the PWB, it is possible to make plane contact with the wiring pattern of the PWB with certainty.
Further, maintenance is easier than replacement of rubber alone. Further, if the frame is also provided with the positioning holes as in the second embodiment, the frame is positioned even if an inadvertent force is applied to the anisotropic conductive rubber, so that the position accuracy is not deteriorated and the position accuracy is not deteriorated. There is an effect.

[Brief description of drawings]

1 (a) is a configuration diagram showing a first embodiment of the present invention, FIG. 1 (b) is a sectional view taken along the line AA 'of FIG. 1 (a), and FIG. 2 (a) is the present invention. Second Embodiment FIG. 2B is a configuration diagram showing a second embodiment.
Is a sectional view taken along the line AA 'of FIG. 2 (a), FIG. 3 (a) is a configuration diagram showing a conventional example, FIG. 3 (b) is the same sectional view, and FIG. 3 (c) is anisotropic. It is an enlarged view of an electrode of a conductive rubber. 1 ... Upper mold, 2 ... Convex protrusion 3 ... TAB carrier tape, 4 ... Positioning hole 5 ... Wiring lead pattern, 6 ... Protrusion 7 ... Anisotropic conductive rubber, 8 ... Pin hole 9 …… Positioning pin, 10 …… PWB 11 …… Lead pattern, 13 …… Pin header 14 …… TAB semi-finished product, 21 …… Metal particles 22 …… Fine electrode, 23,25 …… Frame 24 …… Positioning hole, 26 …… Positioning pin

Claims (1)

[Scope of utility model registration request] 1. An anisotropic conductive rubber is sandwiched between a TAB carrier tape and a PWB, and pressure is applied from above the TAB carrier tape to electrically connect the TAB carrier tape and the PWB through the anisotropic conductive rubber. A TAB product selection jig characterized by fixing a rectangular anisotropic conductive rubber around a frame with a frame in the TAB product selection jig for measuring characteristics.