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:
Nov. 10, 2020
Filed:
Feb. 27, 2018
Applicant:
Tdk Corporation, Tokyo, JP;
Inventors:
Assignee:
TDK CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 41/187 (2006.01); C04B 35/453 (2006.01); C04B 35/626 (2006.01); C04B 35/634 (2006.01); C04B 35/638 (2006.01); H01L 41/43 (2013.01); C04B 35/64 (2006.01); C04B 35/26 (2006.01); C01G 23/00 (2006.01); C01G 49/00 (2006.01);
U.S. Cl.
CPC ...
H01L 41/1878 (2013.01); C01G 23/006 (2013.01); C01G 49/0018 (2013.01); C04B 35/26 (2013.01); C04B 35/453 (2013.01); C04B 35/6261 (2013.01); C04B 35/62695 (2013.01); C04B 35/638 (2013.01); C04B 35/63416 (2013.01); C04B 35/64 (2013.01); H01L 41/43 (2013.01); C01P 2002/34 (2013.01); C04B 2235/3213 (2013.01); C04B 2235/3215 (2013.01); C04B 2235/3232 (2013.01); C04B 2235/3236 (2013.01); C04B 2235/3274 (2013.01); C04B 2235/3298 (2013.01); C04B 2235/604 (2013.01); C04B 2235/6567 (2013.01);
Abstract
The piezoelectric composition is represented by the following Chemical Formula (1):[BiFeO]-[BaTiO]-[SrTiO]  (1)wherein 0.5≤x≤0.8, 0.02≤y≤0.4, 0.02≤z≤0.2, x+y+z=1, and 0.96≤m≤1.04.