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:
Jun. 11, 2013
Filed:
Jan. 15, 2008
Didier Belot, Rives, FR;
Andréia Cathelin, Laval, FR;
Yann Deval, Bordeaux, FR;
Moustapha El Hassan, El Koura, LB;
Eric Kerherve, Talence, FR;
Alexandre Shirakawa, San Jose, CA (US);
Didier Belot, Rives, FR;
Andréia Cathelin, Laval, FR;
Yann Deval, Bordeaux, FR;
Moustapha El Hassan, El Koura, LB;
Eric Kerherve, Talence, FR;
Alexandre Shirakawa, San Jose, CA (US);
STMicroelectronics S.A., Montrouge, FR;
Centre National de la Recherche Scientifique, Paris, FR;
Abstract
A bulk acoustic wave resonator has an adjustable resonance frequency. A piezoelectric element is provided having first and second electrodes. A switching element is provided in the form of a MEMS structure which is deformable between a first and second position. The switching element forms an additional electrode that is selectively disposed on top of, and in contact with, one of the first and second electrodes. This causes a total thickness of the electrode of the resonator to be changed resulting in a modification of the resonance frequency of the resonator.