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:
Jun. 04, 2002
Filed:
Apr. 25, 2001
Akitoshi Yoshii, Akita-ken, JP;
Shintarou Kon, Akita-ken, JP;
Kazuhiko Kikuchi, Akita-ken, JP;
Takashi Kamiya, Akita-ken, JP;
Akira Sasaki, Akita-ken, JP;
TDK Corporation, Tokyo, JP;
Abstract
A multi-layer ceramic electronic device having a device body including alternately arranged dielectric layers and internal electrode layers and external electrodes formed on an outer surface of the device body, wherein the external electrodes have an undercoat layer directly formed on the outer surface of the device body so as to be electrically connected with at least part of the internal electrode layers, an intermediate layer formed on the outer surface of the undercoat layer, and an outer layer formed on the outer surface of the intermediate layer; the undercoat layer includes a first conductive material mainly made of copper and a first glass ingredient; the intermediate layer includes a second conductive material mainly made of a copper-palladium-based alloy; and the outer layer includes a third conductive material mainly made of silver and further containing palladium and a second glass ingredient.