Electrical resistors – Mechanically variable – Deformable
Patent
1993-07-12
1994-12-27
Lateef, Marvin M.
Electrical resistors
Mechanically variable
Deformable
H01L 4300
Patent
active
053769139
ABSTRACT:
A variable resistor (102) for varying a resistance between first and second terminals (145, 150) includes a substrate (200) having formed thereon a resistor network (205) for providing the resistance, wherein the resistor network (205) is electrically coupled between the first and second terminals (145, 150). The variable resistor (102) further includes an elastomeric actuator (300) having opposing upper and lower surfaces (310, 305), wherein the lower surface (305) is conductive. The lower surface (305) electrically couples the first terminal (145) to successive portions of the resistor network (205) as an increasing force is applied to the upper surface (310) of the elastomeric actuator (300), in response to which the resistance between the first and second terminals (145, 150) varies.
REFERENCES:
patent: 4283704 (1981-08-01), Ohtani et al.
patent: 4295119 (1981-10-01), Kasashima et al.
patent: 4300114 (1981-11-01), Sheridan et al.
patent: 4306216 (1981-12-01), Azema et al.
patent: 4503705 (1985-03-01), Polchaninoff
patent: 4847586 (1989-07-01), Tanaga et al.
patent: 4897629 (1990-01-01), Lecklider
patent: 5162775 (1992-11-01), Kuramochi et al.
Hahs, Jr. Charles A.
Peana Stefan
Pine Jerrold
Gardner Kelly A.
Lateef Marvin M.
Moore John H.
Motorola Inc.
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