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:
Sep. 22, 2015
Filed:
Feb. 19, 2013
Applicant:
Ngk Insulators, Ltd, Nagoya, Aichi-prefecture, JP;
Inventors:
Assignee:
NGK Insulators, Ltd., Nagoya-Shi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/047 (2006.01); H01L 41/29 (2013.01);
U.S. Cl.
CPC ...
H01L 41/047 (2013.01); H01L 41/29 (2013.01); Y10T 29/42 (2015.01);
Abstract
A piezoelectric element is provided with a ceramic substrate including a first surface on which a groove is formed, and a first electrode formed on the first surface of the ceramic substrate and including a crossing part that extends over the groove. At least one void is formed between a bottom of the groove and the crossing part of the first electrode.