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:
May. 03, 2016
Filed:
Oct. 22, 2012
Qualcomm Mems Technologies, Inc., San Diego, CA (US);
Chengjie Zuo, Santee, CA (US);
Jonghae Kim, San Diego, CA (US);
Changhan Hobie Yun, San Diego, CA (US);
Sang-June Park, San Diego, CA (US);
Philip Jason Stephanou, Mountain View, CA (US);
Chi Shun Lo, San Diego, CA (US);
Robert Paul Mikulka, Oceanside, CA (US);
Mario Francisco Velez, San Diego, CA (US);
Ravindra V. Shenoy, Dublin, CA (US);
Matthew Michael Nowak, San Diego, CA (US);
QUALCOMM MEMS Technologies, Inc., San Diego, CA (US);
Abstract
This disclosure provides systems, methods and apparatus related to acoustic resonators that include composite transduction layers for enabling selective tuning of one or more acoustic or electromechanical properties. In one aspect, a resonator structure includes one or more first electrodes, one or more second electrodes, and a transduction layer arranged between the first and second electrodes. The transduction layer includes a plurality of constituent layers. In some implementations, the constituent layers include one or more first piezoelectric layers and one or more second piezoelectric layers. The transduction layer is configured to, responsive to signals provided to the first and second electrodes, provide at least a first mode of vibration of the transduction layer with a displacement component along the z axis and at least a second mode of vibration of the transduction layer with a displacement component along the plane of the x axis and they axis.