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. 25, 2005
Filed:
Nov. 19, 2003
Applicants:
Scott K. Pozder, Austin, TX (US);
Michelle F. Rasco, Manor, TX (US);
Inventors:
Scott K. Pozder, Austin, TX (US);
Michelle F. Rasco, Manor, TX (US);
Assignee:
Freescale Semiconductor, Inc., Austin, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01L023/48 ; H01L023/10 ;
U.S. Cl.
CPC ...
Abstract
A semiconductor device is attached to a heat sink by glue that is both thermally conductive and magnetically permeable. The glue fills different features in the surface of the semiconductor device so that there is good coupling between the semiconductor device and the heat sink. The glue is filled with magnetic particles so that the glue is magnetically permeable. The semiconductor device is formed with the heat sink at the wafer level and then singulated after attachment of the heat sink with the glue.