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. 16, 2024
Filed:
Feb. 04, 2021
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Bryant Garcia, Burlingame, CA (US);
Robert Hammond, Santa Barbara, CA (US);
Patrick Turner, San Bruno, CA (US);
Neal Fenzi, Santa Barbara, CA (US);
Viktor Plesski, Gorgier, CH;
Ventsislav Yantchev, Sofia, BG;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
There is disclosed acoustic resonators and filter devices. An acoustic resonator includes a substrate having a surface and a piezoelectric plate having parallel front and back surfaces, the back surface attached to the surface of the substrate except for a portion of the piezoelectric plate forming a diaphragm that spans a cavity in the substrate. An interdigital transducer (IDT) is formed on the front surface of the piezoelectric plate such that interleaved fingers of the IDT are disposed on the diaphragm. A thickness of the interleaved fingers of the IDT is greater than or equal to 0.85 times a thickness of the diaphragm and less than or equal to 2.5 times the thickness of the diaphragm.