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:
Oct. 20, 2020
Filed:
Sep. 29, 2017
Applicant:
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Inventors:
Richard C. Ruby, Menlo Park, CA (US);
Stephen Roy Gilbert, San Francisco, CA (US);
Assignee:
Avago Technologies International Sales Pte. Limited, Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/64 (2006.01); H03H 9/145 (2006.01); H03H 9/25 (2006.01); H03H 3/10 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02834 (2013.01); H03H 9/02574 (2013.01); H03H 9/02866 (2013.01); H03H 9/14544 (2013.01); H03H 9/25 (2013.01); H03H 9/6489 (2013.01); H03H 3/10 (2013.01);
Abstract
Temperature compensation of an acoustic stack is disclosed. A first temperature compensation layer is disposed between a first surface of a substrate and a second surface of a piezoelectric layer; and a second temperature compensation layer is disposed over the plurality of electrodes. A temperature coefficient of frequency (TCF) of the acoustic stack is approximately zero (0.0) over a frequency range of Band 13.