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:
Dec. 25, 2007
Filed:
Feb. 24, 2004
Yuki Miyamoto, Chuo-ku, JP;
Yukio Sakashita, Chuo-ku, JP;
Yuki Miyamoto, Chuo-ku, JP;
Yukio Sakashita, Chuo-ku, JP;
TDK Corporation, Tokyo, JP;
Abstract
A dielectric thin film, comprising a first bismuth layer-structured compound layerexpressed by a composition formula of (BiO)(ABO)or BiABO, wherein 'm' is a positive number, 'A' is at least one element selected from Na, K, Pb, Ba, Sr, Ca and Bi, and “B” is at least one element selected from Fe, Co, Cr, Ga, Ti, Nb, Ta, Sb, V, Mo and W. Between the first bismuth layer-structured compound layerand a lower portion electrode, a second bismuth layer-structured compound layerincluding bismuth in excess of that in the composition formula of said first bismuth layer-structured compound layer