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:
Apr. 19, 1983
Filed:
Jul. 11, 1980
Applicant:
Inventor:
Albrecht Bischoff, Bruchkobel, DE;
Assignee:
W. C. Heraeus GmbH, Hanau, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 67 ; 357 65 ; 428607 ; 428620 ; 29591 ;
Abstract
To reduce failure and breakage of connecting wires connecting specific zones on semiconductor chips to semiconductor frames, the connecting wires are made of an aluminum-copper alloy having, by weight, 3 to 5%, preferably 4% copper, the remainder aluminum (neglecting incidental impurities), the diameter of the wires being between about 0.01 to 0.06 mm, preferably about 0.02 to 0.05 mm, connected to the frame and the semiconductor, respectively, by ultrasonic bonding.