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:
Oct. 09, 2001
Filed:
Jul. 12, 1994
Applicant:
Inventors:
Wolfgang Weise, Frankfurt, DE;
Willi Malikowski, Aschaffenburg, DE;
Dieter Kaufmann, Birstein, DE;
Harald Krappitz, Hanau, DE;
Assignee:
Degussa AG, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 3/530 ;
U.S. Cl.
CPC ...
B23K 3/530 ;
Abstract
Cadmium-free hard solders having working temperatures of less than 630° C., which are easily workable and yield ductile soldered joints, are composed of 30 to 60% by weight of silver, 10 to 36% by weight of copper, 15 to 32% by weight of zinc, 0.5 to 7% by weight of gallium, 0.5 to 7% by weight of tin and 0 to 5% by weight of indium.