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. 30, 1996
Filed:
Apr. 28, 1994
Applicant:
Inventor:
Tetsuro Nishimura, Osaka, JP;
Assignee:
Nihon Superior Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
420559 ; 2282629 ;
Abstract
The invention is a solder alloy which can alleviate the fatigue rupture which occurs at a soldered joint due to a heat cycle. The solder alloy also shows effective use of the addition of Cu. This solder alloy comprises 57 to 65% Sn, 0.1 to 0.5% Sb, 0.002 to 0.05% Te and the balance being lead, wherein all percentages are by weight. The solder alloy of the present invention also supplements the base composition with 0.001 to 0.05% by weight Ga and/or 0.1 to 0.3% by weight Cu.