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. 13, 1984
Filed:
Dec. 20, 1982
Applicant:
Inventors:
Koichi Teshima, Tokyo, JP;
Masakazu Yamada, Tokyo, JP;
Toshiharu Sakurai, Yokohama, JP;
Takemi Abe, Fujisawa, JP;
Assignee:
Tokyo Shibaura Denki Kabushiki Kaisha, Kawasaki, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C / ; B32B / ;
U.S. Cl.
CPC ...
428647 ;
Abstract
An electronic part composed of an alloy comprising, as a basic metal or metals, Cr and Zr with the total amount thereof being between 0.3 and 2.0% by weight (provided that the amount of Cr is 1.5% by weight or less and that of Zr is 1.0% by weight or less) and Cu as a balance, the surface of said part having been coated with Sn. The electronic part according to the present invention is excellent in the wetting property of a solder, weather resistance of a solder and bonding property to Au and Al.