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:
Nov. 19, 2013
Filed:
Feb. 23, 2010
Steve Gilbert, San Francisco, CA (US);
Rick Snyder, Windsor, CO (US);
John D. Larson, Iii, Palo Alto, CA (US);
Phil Nikkel, Loveland, CO (US);
Steve Gilbert, San Francisco, CA (US);
Rick Snyder, Windsor, CO (US);
John D. Larson, III, Palo Alto, CA (US);
Phil Nikkel, Loveland, CO (US);
Avago Technologies General IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
In accordance with a representative embodiment, a bulk acoustic wave (BAW) resonator structure, comprises: a first BAW resonator comprising a first lower electrode, a first upper electrode and a first piezoelectric layer disposed between the first lower electrode and the first upper electrode; a second BAW resonator comprising a second lower electrode, a second upper electrode and a second piezoelectric layer disposed between the second lower electrode and the second upper electrode; and a single-material acoustic coupling layer disposed between the first and second BAW resonators, the acoustic coupling layer having an acoustic impedance less than approximately 6.0 MRayls and an acoustic attenuation less than approximately 1000 dB/cm.