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:
Oct. 09, 2007
Filed:
Nov. 15, 2004
Applicants:
Hongjun Feng, Windsor, CO (US);
R. Shane Fazzio, Loveland, CO (US);
Richard Ruby, Menlo Park, CA (US);
Paul Bradley, Los Altos, CA (US);
Inventors:
Hongjun Feng, Windsor, CO (US);
R. Shane Fazzio, Loveland, CO (US);
Richard Ruby, Menlo Park, CA (US);
Paul Bradley, Los Altos, CA (US);
Assignee:
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/00 (2006.01); H03H 9/09 (2006.01);
U.S. Cl.
CPC ...
Abstract
A resonator structure (FBAR) made of electrodes sandwich a piezoelectric material. The intersection of the two conducting electrodes defines the active area of the acoustic resonator. The active area is divided into two concentric areas; a perimeter or frame, and a central region. An annulus is added to one of the two conducting electrodes to improve the electrical performance (in terms of Q).