Method of forming a low cost digital variable capacitor

Metal working – Electric condenser making – Solid dielectric type

Reexamination Certificate

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C029S594000, C029S609100, C075S414000, C204S192150, C361S505000, C361S523000, C427S079000, C427S080000, C427S128000, C427S402000

Reexamination Certificate

active

07617577

ABSTRACT:
A digital variable capacitor package is provided as having a ground plane disposed on predetermined portion of the top surface of a substrate. An elongated signal electrode may also be disposed on the substrate and including a first end defining an input and a second end extending to a substantially central region of the top surface of the substrate. This elongated signal electrode is disposed to be electrically isolated from the ground plane. A number of elongated cantilevers are disposed on the substrate and each include first ends coupled to the second end of the signal electrode and each further include second ends suspended over different predetermined portions of the ground plane. In operation, one or more of the cantilevers may be actuated to move portion thereof into close proximity to the ground plane for providing one or more discrete capacitance values.

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