Foil-type switching element

Details Foil-type switching element Foil-type switching element

2006-06-20

2006-06-20

Hoang, Tu (Department: 2832)

Electrical resistors

Resistance value responsive to a condition

Force-actuated

C338S114000

Reexamination Certificate

active

07064650

ABSTRACT:
A foil-type switching element comprises a first carrier foil having a first electrode arrangement applied thereon and a second carrier foil having a second electrode arrangement applied thereon, said first and second carrier foils being arranged at a certain distance by means of a spacer in such a way that said first and second electrodes face each other in an active area of said switching element. At least said second electrode arrangement comprises a resistive layer which faces said first electrode arrangement. In response to a pressure acting on said switching element said first and second electrode arrangements are pressed together, the shape and/or the size of a mechanical contact surface between said first and second electrode arrangements being given by a mechanical response function depending on the amount of pressure applied. According to the invention, said resistive layer has a shape such that an electrical response function of said sensor is decoupled from said mechanical response function.

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