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:
Jul. 14, 2026
Filed:
Dec. 20, 2022
Heyuan Aifo Light Communication Technology Co., Ltd., Guangdong, CN;
Guoqiang Li, Guangdong, CN;
HEYUAN AIFO LIGHT COMMUNICATION TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
A single crystal film bulk acoustic wave resonator includes a substrate layer, a Bragg reflection layer, a first bonding layer, a second bonding layer, a piezoelectric layer and an electrode layer; a width of the electrode layer is smaller than that of the piezoelectric layer. The resonator further includes a first silicon oxide layer and a second silicon oxide layer, which surround the first bonding layer and the second bonding layer respectively, and a plurality of first air holes horizontally arranged and a plurality of second air holes horizontally arranged are respectively formed in the first silicon oxide layer and the second silicon oxide layer. Each of the plurality of first air holes corresponds to and is communicated with a respective one of the plurality of second air holes. The piezoelectric layer is made of AlN or lithium niobate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile