JPH10326665A - Manufacture of connecting terminal sheet for electric part item - Google Patents

Abstract

PROBLEM TO BE SOLVED: To continuously and efficiently provide sheets of specified dimension without alternately and multiply laminating woven sheets and insulated films by laminating insulated films on a long woven sheet using a conductive thread for weft and an insulated thread for warp and rounding this laminated body to integrally slice it. SOLUTION: A woven sheet 1 woven to be flat is manufactured by using a conductive thread 11 for weft and an insulated thread 12 for warp. Insulated films 2 are stacked on this woven sheet 1. After adhesive 4 is coated on a laminated body 3 dipping or the like, the laminate body is made round sequentially from one end part until a specified diameter is obtained. By slicing this round article to have a specified thickness in a direction vertical to the extending direction of the conductive thread 11, a connecting terminal sheet is obtained. The thickness of each insulated film 2 is preferably set in the range of 5 to 30 μm, and a film not softened by the reaction temperature of the adhesive 4 and made of PET having good strength, polyimide, polyamide is used. The coating thickness of the adhesive 4 is preferably set in the range of plus 10 μm of this diameter from the thickness of the conductive thread or the insulated thread.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a terminal sheet for connecting electronic components, and more particularly to a method of manufacturing a terminal for connecting electronic components such as a semiconductor LSI or electrode pads of a circuit board to face each other. About the method.

[0002]

2. Description of the Related Art As electronic components become smaller and thinner, electronic components such as semiconductor LSIs or electrode pads on a circuit board are further narrowed in pitch, and highly reliable electrical connection is required. It has been.

In recent years, when an electronic component and an electrode pad of a circuit board face each other to perform contact connection, a connection terminal sheet having conductivity only in the thickness direction of the sheet is interposed between the two electrode pads to connect the two. A method of fixing is used.

[0004] As a method of manufacturing the connection terminal sheet as described above, for example, there is a method described in JP-A-3-254083. That is, the conductive yarn 11 is used as the weft.
, A woven fabric sheet 1 (see FIG. 1) woven using an insulating yarn 12 as a warp and an insulating film 2 are alternately laminated, bonded and integrated, and in a direction perpendicular to the direction in which the conductive yarn 11 extends. This is a method of manufacturing the connection terminal sheet 3 by slicing (see FIG. 4).

[0005] Since the connection terminal sheet manufactured in this manner has conductivity in the thickness direction of the sheet, it has the advantage of being a connection terminal sheet having a substantially equal pitch. However, the lamination of the woven fabric sheet 1 and the insulating film 2 as described above to a large thickness of, for example, 4 cm is
It had the disadvantage that it was troublesome and could not be manufactured efficiently.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and provides a method capable of manufacturing similar connection terminal sheets without alternately laminating a large number of woven sheets 1 and insulating films 2. With the goal.

[0007]

Means for Solving the Problems In order to solve the above problems, a connection terminal sheet for an electronic component according to the present invention has a long woven fabric having a conductive yarn as a weft and an insulating yarn as a warp. In addition to laminating a sheet and a long insulating film, the laminated body is rolled from one end to form a predetermined diameter, bonded and integrated, and then sliced perpendicular to the direction of elongation of the weft. And

According to the present invention, there is provided a long woven fabric sheet having a conductive yarn as a weft and an insulating yarn as a warp;
Similarly, since a laminate in which long insulating films are laminated is rounded, integrated, and sliced, there is an advantage that a terminal sheet for connection having a predetermined dimension can be manufactured without laminating a large number of laminates. In addition, there is an advantage that the slice can be efficiently sliced while being rotated because of the cylindrical shape. In addition, because of the presence of the insulating film, the upper and lower conductor portions do not conduct even if deformation (pressing flaws) or the like due to pressure enters.

[0009]

1 to 3 are diagrams sequentially showing the manufacturing steps of the manufacturing method according to the present invention. As is apparent from FIG. 1, first, a conductive yarn 11 is used as a weft and an insulating yarn is used as a warp. Woven fabric sheet 1 plain woven using yarn 12
To manufacture.

Examples of the conductive yarn 11 include copper having a diameter of several microns to several thousand microns, copper alloy such as beryllium-copper, stainless steel, silicon steel, solder, tin, palladium alloy, gold alloy, and 42 nickel alloy. And various conductive materials such as nickel alloys such as permalloy, molybdenum, tungsten, and carbon fibers. If necessary, the surface may be plated with a metal such as nickel, gold, or rhodium. Such a conductive yarn may have a shape such as a circle, an ellipse, and a band.

The insulating yarn woven together with the conductive yarn 11 as described above includes, for example, silicone rubber, polybutyl, polyester, P
Materials made of an insulating material such as MMA, PE, NA, PP, polyimide, cotton, and glass fiber can be used. Such insulating yarns may also be circular, elliptical, band-like and the like.

As the insulating film 2 laminated on such a woven fabric film 1, a film which does not soften at the reaction temperature of an adhesive described later, is thin and has good strength is preferable.
ET, polyimide, polyamide films and the like can be used.

The insulating film 2 preferably has a thickness of 5 to 30 μm. If the thickness is less than 5 μm, insulation may not be ensured. On the other hand, if the thickness is more than 30 μm, the interval between the conductive yarns 12 becomes too large, and the pitch of the conductive paths becomes too large.

After the above-described laminate 3 is bonded and integrated, an adhesive 4 is applied to the laminate 3 by dipping or the like (see FIG. 2). As such an adhesive 4,
Any material may be used as long as it can be rolled and bonded to a laminate 3 described later. Further, it is preferable that the connection terminal sheet has some elasticity when connecting the electronic components. Therefore, it is preferable that the adhesive has some elasticity. For example, a silicone rubber-based, fluororesin-based, polyurethane resin-based, or epoxy resin-based adhesive can be used.

The coating thickness of the adhesive 3 is preferably the same as the thickness of the fiber (conductive yarn, insulating yarn) or a thickness up to this diameter plus 10 μm. If the thickness is less than the fiber thickness, the adhesion may not be sufficient.
If it exceeds 0 μm, the pitch of the conduction path may be too large.

After the adhesive is applied as described above, the laminate is sequentially rounded from one end to a predetermined diameter as shown in FIG. After being rounded to a predetermined diameter in this way, the connection terminal sheet can be manufactured by slicing the roll to a predetermined thickness in a direction perpendicular to the direction in which the conductive yarn 11 extends. At this time, slicing can be performed while rotating, so that manufacturing can be performed very efficiently.

Such a connection terminal sheet has an advantage that it has conductivity in the thickness direction and has an equal pitch. In addition, the surface of the sliced conductive yarn may be plated with a metal such as nickel, gold, or rhodium as needed to improve corrosion resistance and conductivity.

[0018]

As described above, according to the method of manufacturing an electronic component according to the present invention, a long insulating sheet having a conductive yarn as a weft and an insulating yarn as a warp is used. Since the laminated body obtained by laminating the films is rolled, integrated, and sliced, there is an advantage that a terminal sheet for connection having a predetermined dimension can be continuously manufactured without laminating a large number of laminated bodies. In addition, there is an advantage that the slice can be efficiently sliced while being rotated because of the cylindrical shape.

[Brief description of the drawings]

FIG. 1 is a view for explaining a method for manufacturing a terminal sheet for connection of an electronic component according to the present invention.

FIG. 2 is a diagram for explaining a method for manufacturing a terminal sheet for connection of an electronic component according to the present invention.

FIG. 3 is a view for explaining a method for manufacturing a terminal sheet for connection of an electronic component according to the present invention.

FIG. 4 is a view for explaining a conventional method for manufacturing a connection terminal sheet for electronic components.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Woven fabric sheet 11 Conductive thread 12 Insulating thread 2 Insulating film 3 Laminate 4 Adhesive

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yuji Hanaoka 2-50-50 Toyota, Hino-shi, Tokyo Inside NBC Industry Co., Ltd.

Claims (2)

[Claims] A long insulating film is laminated in the same manner as a long woven fabric sheet having a conductive yarn as a weft and an insulating yarn as a warp, and the laminate is rolled from one end. A method for manufacturing a terminal sheet for connection of electronic components, comprising forming a predetermined diameter, bonding and integrating, and then slicing perpendicular to the direction of elongation of the weft. 2. The thickness of the insulating film is 5 to 30 μm, and the thickness of the adhesive is from the thickness of the conductive yarn or the insulating yarn to the thickness of the conductive yarn or the insulating yarn plus 10 μm. The method for producing a terminal sheet for connection of an electronic component according to claim 1.