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:
Mar. 09, 2004
Filed:
Apr. 02, 2003
Applicant:
Inventors:
Akitoshi Yoshii, Tokyo, JP;
Kazuhiko Kikuchi, Tokyo, JP;
Takashi Kamiya, Tokyo, JP;
Hiromi Kikuchi, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01G 4/228 ;
U.S. Cl.
CPC ...
H01G 4/228 ;
Abstract
A multilayer ceramic capacitor with external terminals having terminal electrodes and external terminals of the electronic device body electrically bonded through a solder layer, wherein the solder layer is comprised of an Sn—Sb high temperature lead-free solder, the ratio between the Sn and Sb in this solder layer is, by ratio by weight percent, in a range of Sn/Sb=70/30 to 90/10, and the solder layer and terminal electrodes are formed between them with a diffusion layer formed by diffusion of a conductive ingredient of the terminal electrodes into the solder layer.