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:
Dec. 11, 2012
Filed:
Jun. 16, 2011
Dariusz Burak, Fort Collins, CO (US);
Jyrki Kaitila, Riemerling, DE;
Alexandre Shirakawa, San Jose, CA (US);
Martin Handtmann, Munich, DE;
Phil Nikkel, Loveland, CO (US);
Dariusz Burak, Fort Collins, CO (US);
Jyrki Kaitila, Riemerling, DE;
Alexandre Shirakawa, San Jose, CA (US);
Martin Handtmann, Munich, DE;
Phil Nikkel, Loveland, CO (US);
Avago Technologies Wireless IP (Singapore) Pte. Ltd., Singapore, SG;
Abstract
In a representative embodiment, a bulk acoustic wave (BAW) resonator structure comprises: a first electrode disposed over a substrate; a first piezoelectric layer disposed over the first electrode; a second electrode disposed over the first piezoelectric layer, wherein c-axis orientations of crystals of the first piezoelectric layer are substantially aligned with one another; a second piezoelectric layer disposed over the second electrode; a non-piezoelectric layer; and a third electrode disposed over the second piezoelectric layer.