Key-touch sensor and method of manufacture

Details Key-touch sensor and method of manufacture Key-touch sensor and method of manufacture

1986-11-10

1988-12-27

Goldberg, E. A.

Electrical resistors

Mechanically variable

Deformable

338 99, 29620, H01C 1010, H01C 1012

Patent

active

047943661

ABSTRACT:
A key-touch sensor has an electric circuit formed on a first electrically insulating substrate covered with a carbon electrode, an electric circuit formed on a second electrically insulating substrate covered with a carbon electrode which is opposed to the electric circuit on the first substrate across a gap, and a pressure-sensitive electroconductive layer deposited to at least one of the first or second substrates and disposed to fill the gap.

REFERENCES:
patent: 4273682 (1981-06-01), Kanamori
patent: 4314227 (1982-02-01), Eventoff
patent: 4347505 (1982-08-01), Anderson
patent: 4426884 (1984-01-01), Polchaninoff
patent: 4503416 (1985-03-01), Kim
patent: 4503705 (1985-03-01), Polchaninoff

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