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:
Jan. 29, 2002
Filed:
Sep. 15, 1999
Applicant:
Inventors:
Toshiaki Ochiai, Tokyo, JP;
Tetuji Maruno, Tokyo, JP;
Akira Sasaki, Tokyo, JP;
Kazuhiko Kikuchi, Tokyo, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 2/348 ; H01L 2/352 ; H01L 2/940 ;
U.S. Cl.
CPC ...
H01L 2/348 ; H01L 2/352 ; H01L 2/940 ;
Abstract
A chip-type multi-layered electronic part in which terminal electrodes are prevented from oxidization when the electrical part is joined with a substrate, so that superior electrical bonding between the terminal electrodes and internal electrodes can be attained. Terminal electrodes connected to internal electrodes contain silver and palladium as the main ingredients in the weight ratio in a range of from 7:3 to 3:7, and further contain boron in a range of from 0.1 weight percent to 1.0 weight percent added to the main ingredients of 100 weight percent.