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:
Oct. 21, 2025
Filed:
Dec. 29, 2021
Qxonix, Inc., Irvine, CA (US);
Dariusz Burak, Fort Collins, CO (US);
Kevin J. Grannen, Thornton, CO (US);
Jack Lenell, Fort Collins, CO (US);
QXONIX INC., Irvine, CA (US);
Abstract
Techniques for improving Bulk Acoustic Wave (BAW) reflector and resonator structures are disclosed, including filters, oscillators and systems that may include such devices. A bulk acoustic wave (BAW) resonator may comprise a substrate and a first layer of piezoelectric material having a first piezoelectric axis orientation. The bulk acoustic wave (BAW) resonator may comprise a multi-layer acoustic reflector, e.g., a multi-layer metal top acoustic reflector electrode, including a first pair of top metal electrode layers. The first pair of top metal electrode layers may be electrically and acoustically coupled with the first layer of piezoelectric material to excite a piezoelectrically excitable resonance mode at a resonant frequency of the BAW resonator.