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:
May. 13, 1997
Filed:
Jul. 19, 1994
Applicant:
Inventors:
Deepak Mahulikar, Madison, CT (US);
Paul R Hoffman, Modesto, CA (US);
Jeffrey S Braden, Livermore, CA (US);
Assignee:
Olin Corporation, Manteca, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ; H01L / ;
U.S. Cl.
CPC ...
361719 ; 174252 ; 174257 ; 174258 ; 257720 ; 257713 ; 257709 ; 361720 ; 361713 ;
Abstract
There is disclosed components for electronic packaging applications having integral bumps. A leadframe is formed by etching a metallic strip from one side to form outwardly extending, substantially perpendicular integral bumps. The metallic strip is then etched from the opposite side to form individual leads. When the integrally bumped component is an package base, fatigue of solder balls is reduced.