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. 25, 2022
Filed:
Feb. 27, 2019
Applicant:
Rf360 Europe Gmbh, Munich, DE;
Inventors:
Franz Sebastian Fries, Munich, DE;
Christian Huck, Munich, DE;
Maximilian Schiek, Puchheim, DE;
Willi Aigner, Moosinning, DE;
Assignee:
RF360 Europe Gmbh, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/205 (2006.01); H03H 9/02 (2006.01); H03H 9/13 (2006.01); H03H 9/54 (2006.01); H03H 3/02 (2006.01);
U.S. Cl.
CPC ...
H03H 9/205 (2013.01); H03H 3/02 (2013.01); H03H 9/02015 (2013.01); H03H 9/131 (2013.01); H03H 9/54 (2013.01);
Abstract
A BAW resonator with an improved lateral energy confinement is provided. The resonator has a bottom electrode in a bottom electrode layer, a top electrode in a top electrode layer and a piezoelectric layer between the bottom electrode layer and the top electrode layer. The piezoelectric layer comprises piezoelectric materials of different piezoelectric polarities.