Process for producing an anisotropically electroconductive sheet
First Claim
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1. A process for producing an anisotropically electroconductive sheet which comprises;
- (a) mixing magnetic electroconductive wires having a substantially uniform length into a non-electroconductive liquid matrix.(b) pouring the mixture into a cavity formed between two parallel planes, the distance between the planes being greater than the length of the electroconductive wires;
(c) generating a magnetic field in the direction perpendicular to said parallel planes and orienting the electroconductive wires in the matrix to the magnetic field direction then;
(d) decreasing the distance between said planes to a length not longer than that of the electroconductive wires, and(e) hardening the liquid matrix.
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Abstract
An anisotropically electroconductive sheet of a non-electroconductive elastomer and electroconductive wires which have a length substantially the thickness of the sheet. The electroconductive wires are oriented from each other and are formed into patterned wire groupings, which are in turn formed into patterns. The wires in the groupings are parallel in the directions of the sheet thickness, and the wires are spaced from each other in the wire groupings, and are thereby electrically insulated from each other.
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Citations
10 Claims
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1. A process for producing an anisotropically electroconductive sheet which comprises;
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(a) mixing magnetic electroconductive wires having a substantially uniform length into a non-electroconductive liquid matrix. (b) pouring the mixture into a cavity formed between two parallel planes, the distance between the planes being greater than the length of the electroconductive wires; (c) generating a magnetic field in the direction perpendicular to said parallel planes and orienting the electroconductive wires in the matrix to the magnetic field direction then; (d) decreasing the distance between said planes to a length not longer than that of the electroconductive wires, and (e) hardening the liquid matrix. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A process for producing an anisotropically electroconductive sheet which comprises:
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(a) mixing a plurality of magnetic electroconductive wires having substantially uniform lengths into a non-electroconductive hardenable fluid matrix; (b) maintaining the mixture as a sheet-like form; (c) placing a magnetic plate having a multiplicity of protrusions formed on its surface against said sheet-like mixture; (d) generating a magnetic field so that the electroconductive wires are caused to gather to the protrusions on the magnetic plate and to be oriented in the thickness direction of the sheet, and (e) hardening the fluid matrix.
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Specification