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:
Feb. 10, 1981
Filed:
Nov. 13, 1979
Applicant:
Inventors:
Rensei Futatsuka, Aizuwakamatsu, JP;
Tadao Sakakibara, Aizuwakamatsu, JP;
Assignee:
Tamagawa Kikai Kinzoku Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
75153 ; 75154 ;
Abstract
A copper base alloy for leads of an integrated circuit consisting essentially of from 0.5 to 1.5% by weight of iron, from 0.5 to 1.5% by weight of tin, from 0.01 to 0.35% by weight of phosphorus, and the balance of copper and inevitable impurities. Said alloy possesses satisfactory properties which are required of leads of integrated circuits.