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:
Dec. 29, 1998
Filed:
Nov. 08, 1996
Applicant:
Inventors:
William George Petefish, Eau Claire, WI (US);
Boydd Piper, Eau Claire, WI (US);
Thomas E Walker, Eau Claire, WI (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
156196 ; 29882 ;
Abstract
A method and apparatus are provided for coining solder balls on an organic electrical circuit package. Generally, this method includes placing a slug on one or more of the solder balls; and applying sufficient pressure for a sufficient period of time on the slug to flatten the surface of the solder balls so as to form planar solder coins. The apparatus includes a press; a ram attached to the press; a platform for receiving the package and a slug placed upon the solder balls.