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:
Jan. 27, 1987
Filed:
Jun. 20, 1986
Carl D Ostergren, Montgomery, NY (US);
John A Paivanas, deceased, late of Williamsville, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A device to thermally couple a heat dissipating integrated circuit chip to the heat sink in a thermal conduction module for effective cooling of the chip by minimizing the thermal resistance path from the chip to the sink. The device is a combination of a heat conducting flat based, truncated solid conical disc which is spring loaded on the back of the chip and a heat conductive hat member having an opening with a continuous tapered wall to conformally fit over the truncated conical disc. The gap between the disc and the hat is packed with a thin layer of a high thermal conductivity grease to provide a low interfacial thermal resistance and mechanical flexibility between the disc and the hat. For additional cooling enhancement of the chip, at the interface between the chip back surface and the base of the disc a self-healing alloy having a high thermal conductivity and low melting point is provided.