Thursday, January 15, 2009

US Patent 7476967 - Porous alumina/CNT thermal interface

US Patent 7,476,967

In order to maximize the thermal conductive properties of carbon nanotubes this patent from Intel teaches aligning the nanotubes in an nanoporous alumina template. Claim 1 reads:

1. A device comprising:

an integrated circuit die; and

a thermal interface device coupled with a surface of the die, the thermal interface device comprising a layer of a porous metal oxide, the layer comprising a first surface and an opposing second surface, and a number of carbon nanotubes disposed in pores of the porous metal oxide layer, the carbon nanotubes extending beyond the first surface and the second surface of the porous metal oxide layer.