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:
Jan. 09, 2024
Filed:
Oct. 22, 2020
Applicant:
Skyworks Solutions, Inc., Irvine, CA (US);
Inventors:
Assignee:
SKYWORKS SOLUTIONS, INC., Irvine, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
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 disposed on an upper surface of the piezoelectric substrate, a dielectric temperature compensation layer disposed 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.