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:
Jun. 19, 2001
Filed:
Apr. 13, 1999
Applicant:
Inventor:
Mark F. Sylvester, Eau Claire, WI (US);
Assignee:
W. L. Gore & Associates, Inc., Newark, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H05K 7/00 ;
U.S. Cl.
CPC ...
H05K 7/00 ;
Abstract
A package for mounting an integrated circuit chip includes a body having at least a first region, the size of the integrated circuit chip, and a second region. The first region has a first coefficient of thermal expansion (CTE), and the second region has a second, different CTE. The first region approximately matches the CTE of the integrated circuit chip mounted on the package, and the second region approximates the CTE of the printed wiring board to which the package is mounted.