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:
May. 07, 2013
Filed:
Mar. 19, 2010
Akira Shibue, Tokyo, JP;
Tomohiko Kato, Tokyo, JP;
Shinichiro Kakei, Tokyo, JP;
Yasunobu Oikawa, Tokyo, JP;
Kenji Horino, Tokyo, JP;
Akira Shibue, Tokyo, JP;
Tomohiko Kato, Tokyo, JP;
Shinichiro Kakei, Tokyo, JP;
Yasunobu Oikawa, Tokyo, JP;
Kenji Horino, Tokyo, JP;
TDK Corporation, Tokyo, JP;
Abstract
A dielectric device comprises a substrate made of a metal and an oxide dielectric layer mounted on a surface of the substrate. The surface of the substrate has metal oxide regions distributed like islands, while the oxide dielectric layer is in close contact with the substrate through the metal oxide regions. Since adhesion is higher in an area where the substrate and the oxide dielectric layer are in close contact with each other through the metal oxide regions distributed like islands on the surface of the substrate, the adhesion between the substrate and oxide dielectric layer in the dielectric device is enhanced. As compared with a case where a rough surface is formed on a metal foil, the metal oxide region and the substrate are inhibited from forming a rough surface, whereby leakage characteristics can be kept from being deteriorated by the rough surface.