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:
Jul. 11, 2000
Filed:
Jan. 28, 1998
Applicant:
Inventors:
Martinus Adrianus Oud, Krimpen a/d IJssel, NL;
Roger Bilham, Bromley, GB;
Assignee:
Alpha Fry, Limited, , GB;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148400 ; 420560 ; 420561 ; 420562 ;
Abstract
A lead-free tin alloy for solder joints comprising up to 0.25% by weight of indium and a grain refiner which is an alloy consisting of, by weight, 2.5 to 10% aluminium, 1 to 5% magnesium and balance zinc. The alloys have improved mechanical properties, such as creep strength, and an improved thermal fatigue strength.