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:
Aug. 04, 2009
Filed:
Dec. 22, 2005
Applicants:
Takeshi Kijima, Matsumoto, JP;
Yasuaki Hamada, Suwa, JP;
Tomokazu Kobayashi, Suwa, JP;
Hiromu Miyazawa, Azumino, JP;
Inventors:
Takeshi Kijima, Matsumoto, JP;
Yasuaki Hamada, Suwa, JP;
Tomokazu Kobayashi, Suwa, JP;
Hiromu Miyazawa, Azumino, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ferroelectric film having a ferroelectric shown by a general formula (PbBi)(BX)O, B including at least one of Zr and Ti, X including at least one of Nb and Ta, 'a' being in a range of '0.05≦a≦0.4', and “d” being in a range of “0<d<1”.