logo

For the Inventor, By the Inventor

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.:

US 11804822 B1

PDFFull Text
Date of Patent:
Oct. 31, 2023

Filed:

Oct. 22, 2020

Surface acoustic wave resonator with reduced frequency shift

Applicant:

Skyworks Solutions, Inc., Irvine, CA (US);

Inventors:

Hironori Fukuhara, Ibaraki, JP;

Keiichi Maki, Suita, JP;

Yuya Hiramatsu, Neyagawa, JP;

Assignee:

SKYWORKS SOLUTIONS, INC., Irvine, CA (US);

Attorney:

Lando & Anastasi, LLP

Primary Examiner:

Andrea Lindgren Baltzell

Assistant Examiner:

Alan Wong

Int. Cl.
CPC ...
H03H 9/25 (2006.01); H03H 9/02 (2006.01); H03H 9/72 (2006.01); H03H 9/64 (2006.01); H03H 9/145 (2006.01);
U.S. Cl.
CPC ...
H03H 9/25 (2013.01); H03H 9/02559 (2013.01); H03H 9/02834 (2013.01); H03H 9/14541 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01);
Abstract

Aspects of this disclosure relate to a surface acoustic wave resonator. The surface acoustic wave resonator includes a piezoelectric substrate, interdigital transducer electrodes formed on an upper surface of the piezoelectric substrate, a dielectric temperature compensation layer formed on the piezoelectric substrate to cover the interdigital transducer electrodes, and a dielectric passivation layer over the temperature compensation layer. The passivation layer may include an oxide layer configured to have a sound velocity greater than that of the temperature compensation layer to suppress a transverse signal transmission.

Find Patent Forward Citations

Fukuhara, Hironori. (2023). Surface acoustic wave resonator with reduced frequency shift (U.S. Patent No. 11804822). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11804822

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Loading…