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:
Mar. 27, 2007
Filed:
Dec. 01, 2004
Robert Russell Wolford, Raleigh, NC (US);
Jimmy Grant Foster, Sr., Morrisville, NC (US);
Donna Casteel Hardee, Raleigh, NC (US);
Don Steven Keener, Apex, NC (US);
Robert Russell Wolford, Raleigh, NC (US);
Jimmy Grant Foster, Sr., Morrisville, NC (US);
Donna Casteel Hardee, Raleigh, NC (US);
Don Steven Keener, Apex, NC (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A heatpipe for cooling an integrated circuit. The heatpipe includes a pipe and radial fins that are formed by extruding a single piece of material, such as heat conducting metal. Each of the radial fins extends away from the pipe and runs (preferably) the length of the pipe. Each radial fin has normally oriented subfins that provide additional heat convection surface areas to the radial fins. Within the pipe are interior fins, also formed during the material extrusion process. The interior fins provide additional conduction cooling to a heat transferring fluid circulating within the pipe.