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:
Aug. 15, 2000
Filed:
Jul. 06, 1998
Applicant:
Inventors:
Gunther Herklotz, Bruchkobel, DE;
Jurgen Reuel, Gelnhausen, DE;
Lutz Schrapler, Alzenau, DE;
Christoph Simons, Biebergemund, DE;
Assignee:
W. C. Heraeus GmbH & Co. KG, Hanau, DE;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148430 ; 420508 ; 420509 ; 420510 ;
Abstract
Fine wires of a gold alloy of 0.05 to 0.95 wt % platinum, palladium or a mixture thereof; 0.001 to 0.1 wt % mischmetal containing at least 50 wt. % of cerium; and 0 to 0.1 wt % of alkaline earth metal. The wire has a favorable strength-to-elongation ratio and is suitable both for wire bonding and for making the ball bumps of flip chips.