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:
Aug. 19, 1986
Filed:
Sep. 20, 1984
Javanthu K Hassan, Hopewell Junction, NY (US);
Sevgin Oktay, Poughkeepsie, NY (US);
John A Paivanas, Hyde Park, NY (US);
Clarence J Spector, Hopewell Junction, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A cooling means for a circuit chip device employs a noneutectic metal alloy to form a low thermal resistance bridging interface between the surface of the chip device and a heat sink. The alloy has a solidus-liquidus temperature range such that the solidus is slightly below the maximum operating temperature of the chip, and thus has the capability to reestablish and maintain the interface at a low thermal resistance if stressed during circuit operation, even with a low current load at the interface of the chip device and the heat sink. In addition to the chip interface, the above cooling means is also used at other interfacial regions of the heat sink, dependent on design, to achieve very low thermal resistance.