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:
May. 04, 1999
Filed:
Jul. 30, 1997
Stephen Daniel Cromwell, Roseville, CA (US);
Christian Belady, Dallas, TX (US);
Hewlett-Packard Company, Palo Alto, CA (US);
Abstract
The invention is a heat sink assembly for the removal of heat from semiconductor and power converter modules. The packaging design for semiconductor modules and power converter modules provides efficient heat removal and a tight Faraday Cage. There is a heat transfer layer sandwiched between a CPU module and a power converter module. The heat sink assembly includes a heat transfer layer, a fin stack, and a series of heat pipes. The heat transfer layer has a slot for passage of power cables and sense lines which connects both the CPU module and the power converter module, and the power converter module and the printed circuit board. The heat sink chamber also serves as a Faraday Cage and thus attenuates EMI from the semiconductor module, the power converter module, the power cables, and the sense lines.