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:
Apr. 21, 1992
Filed:
Nov. 15, 1990
Applicant:
Inventors:
John C Kan, Poughkeepsie, NY (US);
Carl Yakubowski, Hyde Park, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B30B / ;
U.S. Cl.
CPC ...
1565833 ; 156298 ; 156541 ; 156580 ; 156581 ;
Abstract
An apparatus and method for removably mounting heat sinks on a chip carrying substrate by simultaneously applying pressure to both the heat sinks and the substrate. Also disclosed is a three dimensional heat sink having a plurality of spatially interconnected holes formed therein. The holes act as extended boiling surfaces which also promote agitation induced by bubble motion.