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. 18, 2008
Filed:
Feb. 23, 2005
Takanori Matsuda, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Tetsuro Fukui, Yokohama, JP;
Kiyotaka Wasa, Chiyogaoka, Nara-shi, Nara-ken, JP;
Takanori Matsuda, Yokohama, JP;
Toshihiro Ifuku, Yokohama, JP;
Tetsuro Fukui, Yokohama, JP;
Kiyotaka Wasa, Chiyogaoka, Nara-shi, Nara-ken, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Other;
Abstract
A dielectric element includes a lower electrode layer provided on a substrate, a dielectric layer provided on the lower electrode layer and an upper electrode layer provided on the dielectric layer. The dielectric layer has a first dielectric layer provided on a side of the lower electrode layer, and a second dielectric layer provided on a side of the upper electrode layer. The second dielectric layer is a layer comprised mainly of an oxide including four or more kinds of metal element components, and the first dielectric layer does not substantially include at least one component selected from metal elements included in the oxide layer of the second dielectric layer and is comprised mainly of an oxide including at least three components selected from the remaining metal elements without substantially including Ti and Zr elements.