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. 10, 1996
Filed:
May. 04, 1995
Applicant:
Inventors:
William R Hamburgen, Palo Alto, CA (US);
John S Fitch, Newark, CA (US);
Norman P Jouppi, Palo Alto, CA (US);
Assignee:
Digital Equipment Corporation, Maynard, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28D / ;
U.S. Cl.
CPC ...
16510421 ; 16510427 ; 16510433 ; 165 76 ; 165287 ; 361700 ; 29890032 ;
Abstract
A thermosiphon provides cooling for a high powered die. The thermosiphon includes a fuse for accommodating temperature fault conditions. The thermosiphon utilizes a water and alcohol mixture for improved boiling characteristics. Contaminants at the joint betweeen the thermosiphon and the package housing are reduced by the use of a shrink ring seal. Thermal interfaces between the die and the thermosiphon are eliminated by directly coupling the die to the thermosiphon.