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. 28, 2025
Filed:
May. 20, 2022
Applicant:
Murata Manufacturing Co., Ltd., Nagaokakyo, JP;
Inventors:
Assignee:
MURATA MANUFACTURING CO., LTD., Nagaokakyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/335 (2013.01); H03H 9/19 (2006.01); H10N 30/085 (2023.01); H10N 30/853 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/872 (2023.02); H03H 9/19 (2013.01); H10N 30/085 (2023.02); H10N 30/853 (2023.02);
Abstract
A piezoelectric vibration element includes a piezoelectric piece having a main surface; an excitation electrode disposed on the main surface of the piezoelectric piece; and a connection electrode disposed on the main surface of the piezoelectric piece and electrically connected to the excitation electrode, wherein when the main surface of the piezoelectric piece is viewed in a plan, the piezoelectric piece has a through-hole in an area between the excitation electrode and the connection electrode, and wherein an internal wall of the through-hole located closer to the excitation electrode has at least four slopes.