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:
Sep. 24, 2024
Filed:
Sep. 10, 2021
Skyworks Global Pte. Ltd., Singapore, SG;
Benfeng Zhang, Moriguchi, JP;
Jiansong Liu, Irvine, CA (US);
Benjamin Paul Abbott, Irvine, CA (US);
Kwang Jae Shin, Yongin, KR;
Alexandre Augusto Shirakawa, Cardiff by the Sea, CA (US);
Skyworks Global Pte. Ltd., Singapore, SG;
Abstract
Aspects of this disclosure relate to a bulk acoustic wave device with a multi-layer raised frame. The bulk acoustic wave device includes a first electrode, a second electrode, a piezoelectric layer positioned between the first electrode and the second electrode, and a multi-layer raised frame structure configured to cause lateral energy leakage from a main acoustically active region of the bulk acoustic wave device to be reduced. The multi-layer raised frame structure includes a first raised frame layer embedded in the piezoelectric layer and a second raised frame layer. The first raised frame layer has a lower acoustic impedance than the piezoelectric layer.