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. 03, 1995
Filed:
May. 06, 1994
Applicant:
Inventors:
Thomas H Ramsey, Rowlett, TX (US);
Rafael C Alfaro, Carrollton, TX (US);
Assignee:
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
437183 ; 437200 ; 437201 ; 257737 ; 257766 ; 257780 ; 228-45 ; 228904 ;
Abstract
A method for electrically connecting integrated circuit copper-gold ball bond that connect a bond wire (18) with a bond pad (14) forms a palladium layer (16) in the electrical connection between the bond wire (18) and the bond pad (14). The connection avoids excessive stresses that arise from intermetallic formations between the bond wire (18) and the bond pad (14).