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:
May. 19, 2026
Filed:
Dec. 17, 2019
Applicant:
Rf360 Singapore Pte. Ltd., Republic Plaza, SG;
Inventors:
Matthias Knapp, Munich, DE;
Christian Huck, Munich, DE;
Assignee:
RF360 Singapore Pte. Ltd., Singapore, SG;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/25 (2006.01); H03H 9/02 (2006.01); H03H 9/64 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H03H 9/25 (2013.01); H03H 9/02582 (2013.01); H03H 9/02834 (2013.01); H03H 9/6483 (2013.01); H03H 9/725 (2013.01);
Abstract
A surface acoustic wave resonator () comprises a layered substrate including a carrier substrate () and a dielectric layer () having a low acoustic velocity. Another dielectric layer () is disposed on a piezoelectric layer () and interdigitated electrodes () having an acoustic velocity lower than the acoustic velocity of the carrier substrate () and a positive temperature coefficient of frequency.