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:
Mar. 24, 2020
Filed:
Oct. 20, 2017
Global Communication Semiconductors, Llc, Torrance, CA (US);
Robert B. Stokes, Rancho Palos Verdes, CA (US);
Alvin M. Kong, Manhattan Beach, CA (US);
Liping Daniel Hou, Torrance, CA (US);
Dae-Jin Hyun, Harbor City, CA (US);
Shing-Kuo Wang, Torrance, CA (US);
GLOBAL COMMUNICATION SEMICONDUCTORS, LLC., Torrance, CA (US);
Abstract
Devices and processes for preparing devices are described for reducing resonance of spurious waves in a bulk acoustic resonator. A first electrode is coupled to a first side of a piezoelectric layer and a second electrode is coupled to a second side of the piezoelectric layer. The piezoelectric layer is configured to resonate in response to an electrical signal applied between the first electrode and the second electrode. Perforations in the first electrode, the piezoelectric layer and/or the second electrode, and/or posts or beams supporting the second electrode, reduce resonance of spurious waves.