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:
Jul. 19, 2022
Filed:
Apr. 25, 2019
Applicant:
Rf360 Europe Gmbh, Munich, DE;
Inventors:
Matthias Knapp, Munich, DE;
Christian Huck, Munich, DE;
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/02 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
H03H 9/02574 (2013.01); H03H 9/02582 (2013.01); H03H 9/02834 (2013.01); H03H 9/6406 (2013.01);
Abstract
A SAW device having a stacked design of functional layers is proposed that is build up on a carrier substrate (SUB) that is chosen to provide a high acoustic velocity. The stack further comprises a thin TCF compensation layer (TCL), a thin film piezoelectric layer (PEL) and a set of interdigital electrodes (IDE) on top of the piezoelectric layer. Energy of the desired mode mainly in the high acoustic velocity material. Despite the high possible operating frequencies the SAW device can reliably be manufactured with present lithographic techniques.