JPH0121959Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a conductive adhesive tape or sheet.

Conventional conductive adhesive tapes include those that have a conductive adhesive layer on the surface of a conductive base material with conductive powder or fibers mixed in the adhesive, and those that have an uneven surface such as a diamond shape. There are tapes that have an adhesive layer on the surface of a conductive base material, but these conductive adhesive tapes require contact between the conductive base material and the conductive substance in the adhesive layer or the conductive material to be adhered. It is difficult to obtain sufficient electrical conductivity because of the adhesive.

In the present invention, a conductive material is present in a layer such as an adhesive film or sheet having a non-adhesive area without adhesive at appropriate intervals, with a part of the conductive material exposed in the non-adhesive area. When this conductive tape or sheet is applied to a conductive material, the conductive material present in the tape or sheet makes very good contact with the adherend, and this tape or sheet can be applied to the connecting part of the conductor. Good conductivity is always obtained when used.

Examples will be described below. Adhesive layer 1 of rubber-based, acrylic-based, silicone-based, vinyl-based, etc.
A non-adhesive portion 2 having a round shape, a rectangular shape, etc. and penetrating the adhesive layer without the adhesive at an appropriate interval.
It is formed based on A conductive material 3 such as a conductive linear material, tape-like material, net-like material, etc. is buried in the adhesive layer having the non-adhesive part with a part exposed 3a in the non-adhesive part. It is preferable that the conductive material has a thickness equal to or slightly larger than that of the adhesive layer, at least in the non-adhesive portion. Further, the conductive material may be formed so as to be located at least on the upper surface or the lower surface of the adhesive film or sheet layer in the non-adhesive portion.
Reference numeral 4 denotes release paper attached to both the upper and lower surfaces of the adhesive layer.

The above conductive materials include copper, copper alloy, aluminum,
Other conductive metals, conductive amorphous metals,
There are wire or tape-like materials made of carbon fiber, conductive plastic, etc., or coarse mesh materials formed by knitting wire or tape materials, and some of the wire or tape-like materials mentioned above are They can also be exposed on the non-adhesive portion and arranged in a stratus pattern or in a cross pattern.

The present invention has the above-mentioned structure, and there is a non-adhesive part in the adhesive layer, and conductive nets, wires, etc. are partially exposed and buried in the non-adhesive part. The conductive material whose part is exposed in the non-adhesive area is not hindered by the adhesive, and when it is attached to the joint of a conductor, the conductor and the conductive adhesive tape or sheet It makes good contact with the conductive material buried inside, and always maintains good conductivity between the conductive materials attached to the top, bottom, or both top and bottom surfaces of the conductive adhesive tape or sheet via the conductive material. can. Furthermore, its structure is simple and it can be used as an electrostatic discharge conductor, an electrical conductor, a connection, etc.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a partially cutaway plan view, Fig. 2 is an exploded view of Fig. 1, and Fig. 3 is an exploded view of Fig. 1.
FIG. 4 is a perspective view showing a modified example, and FIG. 5 is a sectional view taken along the line - in FIG. 4. 1 is an adhesive layer, 2 is a non-adhesive part, 3 is a conductive material, 3a is an exposed part of the conductive material, and 4 is a release paper.

Claims (1)

[Claims for Utility Model Registration] 1. A conductive adhesive tape or sheet in which a conductive material is present in an adhesive layer having a non-adhesive area where no adhesive is present, with a portion of the conductive material exposed in the non-adhesive area. . 2. The conductive adhesive tape or sheet according to claim 1, wherein the conductive material is a conductive linear material. 3. The conductive adhesive tape or sheet according to claim 1, wherein the conductive material is a conductive tape-like material. 4. The conductive adhesive tape or sheet according to claim 1, wherein the conductive material is a conductive net material. 5. The conductive adhesive tape or sheet according to claims 1 to 4, wherein the adhesive layer is an adhesive film or sheet.