Patent ID: 6127744
Filing Date: 2000-10-03
Classification: H01G,H01H

Abstract:
An MEM switch comprising:a cantilever beam having first and second ends;a cantilever support member coupled to the second end of the cantilever beam;a first insulative layer disposed on the cantilever beam;a first control surface disposed on the first insulative layer such that the first control surface, the first insulative layer and the cantilever beam form a first capacitor having a substantially fixed capacitance;a first conductive surface opposing the cantilever beam;a second insulative layer disposed on the first conductive surface; anda second control surface disposed on the second insulative surface and facing the first control surface such that the second control surface, the second dielectric layer, and the first conductive surface form a second capacitor having a substantially fixed capacitance, and the first and second control surfaces form a third capacitor having a variable capacitance that is determined by the position of the cantilever beam.