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. 18, 2021
Filed:
Dec. 01, 2017
Applicant:
Snaptrack, Inc., San Diego, CA (US);
Inventors:
Maximilian Schiek, Munich, DE;
Gilles Moulard, Munich, DE;
Monika Schmiedgen, Olching, DE;
Andre Schwobel, Munich, DE;
Assignee:
Snaptrack, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/54 (2006.01); H03H 9/02 (2006.01); H03H 9/64 (2006.01);
U.S. Cl.
CPC ...
H03H 9/6469 (2013.01); H03H 9/02157 (2013.01); H03H 9/54 (2013.01);
Abstract
A filter comprising first and second BAW resonators. The first BAW resonator having a piezoelectric layer, located between a top electrode and a bottom electrode, and a dielectric layer located between the bottom electrode and an additional electrode. Wherein the dielectric layer, the bottom electrode and the additional electrode are configured to provide an additional capacitance in the resonator. The second BAW resonator having at least one less electrode than the first BAW resonator.