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:
Jun. 25, 2024
Filed:
Jan. 26, 2022
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Bryant Garcia, Mississauga, CA;
Julius Koskela, Helsinki, FI;
Robert B. Hammond, Santa Barbara, CA (US);
Patrick Turner, San Bruno, CA (US);
Viktor Plesski, Gorgier, CH;
Ventsislav Yantchev, Sofia, BG;
Soumya Yandrapalli, Lausanne, CH;
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Abstract
Acoustic resonators and filter devices. An acoustic resonator includes a piezoelectric plate having front and back surfaces, a portion of the piezoelectric plate forming a diaphragm, a conductor pattern on the front surface, the conductor pattern including an interdigital transducer (IDT), fingers of the IDT on the diaphragm, and a front-side dielectric layer on the front surface of the piezoelectric plate between the interleaved fingers. A resonant frequency is determined, in part, by a thickness of the front-side dielectric layer. A ratio of a mark of the interleaved fingers to a pitch of the interleaved fingers is greater than or equal to 0.12 and less than or equal to 0.3.