The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 09, 2002
Filed:
Sep. 21, 1999
Robert E. Mihailovich, Westlake Village, CA (US);
Jun J. Yao, Thousand Oaks, CA (US);
Rockwell Science Center, LLC, Thousand Oaks, CA (US);
Abstract
The present invention relates to a micro electromechanical (MEM) isolator in which an input signal induces an output signal by means of electrically insulating mechanical motion. The MEM isolator device comprises a dielectric moveable platform suspended above a substrate by flexible beams. A drive and a control capacitor each have one electrode supported by the platform and one electrode supported by the substrate. Coupling between electrical and mechanical energies is achieved by providing an input signal to the drive capacitor to induce platform motion. When the input signal is fed to the drive capacitor, it actuates electrostatic motion of the platform resulting in a change in the value of the control capacitance. The change in the control capacitance is converted via a simple electronics circuit into an output that mirrors the input but is electrically isolated therefrom. The advantages of such a device include simple electrical isolation provided by the dielectric platform, built in signal-debounce inherent to the structure mechanics, and economical integration with silicon integrated circuits.