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:
Apr. 21, 2025
Filed:
Sep. 27, 2023
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventor:
Sean McHugh, Santa Barbara, CA (US);
Assignee:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2005.12); H03H 3/02 (2005.12); H03H 3/04 (2005.12); H03H 9/17 (2005.12); H03H 9/56 (2005.12);
U.S. Cl.
CPC ...
H03H 9/02228 (2012.12); H03H 3/04 (2012.12); H03H 9/02031 (2012.12); H03H 9/02102 (2012.12); H03H 9/174 (2012.12); H03H 9/176 (2012.12); H03H 9/562 (2012.12); H03H 9/564 (2012.12); H03H 9/568 (2012.12); H03H 2003/023 (2012.12); H03H 2003/0407 (2012.12); H03H 2003/0442 (2012.12);
Abstract
Acoustic resonator devices and filters are disclosed. An acoustic resonator includes a substrate and a piezoelectric plate supported by the substrate. A portion of the piezoelectric plate suspended across a cavity in the substrate forms a diaphragm. A decoupling dielectric layer is on a front surface of the diaphragm. An interdigital transducer (IDT) has interleaved fingers on the decoupling dielectric layer over the diaphragm. The IDT and piezoelectric plate are configured such that a radio frequency signal applied to the IDT excites shear acoustic waves in the diaphragm.