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. 12, 2021
Filed:
Sep. 20, 2018
Applicant:
Micro Crystal SA, Grenchen, CH;
Inventors:
Silvio Dalla Piazza, St-Imier, CH;
Felix Staub, Koppigen, CH;
Assignee:
Micro Crystal SA, Grenchen, CH;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 9/215 (2006.01); H03H 9/19 (2006.01); H03H 9/05 (2006.01); H01L 41/04 (2006.01); H03H 9/21 (2006.01); H03H 3/04 (2006.01); G04C 3/12 (2006.01);
U.S. Cl.
CPC ...
H03H 9/215 (2013.01); H01L 41/04 (2013.01); H03H 9/0542 (2013.01); H03H 9/19 (2013.01); H03H 9/21 (2013.01); G04C 3/12 (2013.01); H03H 2003/0492 (2013.01);
Abstract
The invention relates to a piezoelectric resonator, which comprises a base and at least two vibrating arms () extending from the base, at least two grooves () being formed opposite each other on part of the length of the arms and on upper and lower faces of the arms. The depth of the groove on the upper face is less than 30% of the total thickness of each arm and the depth of the groove on the lower face is more than 50% of the total thickness of each arm, or reversely.