Wednesday, April 21, 2010

US Patent 7700943 - Functionalized CNT heat spreader

This patent from Intel teaches that nanotube functionalization can assist in the mixing of nanotubes with polymers or metals to form more effective materials for thermal management. Claim 1 reads:

1. An apparatus comprising:

a first layer attached to surface of a die; and

a nanotube (NT) composite coupled to the first layer to provide thermal management for the die, the NT composite including a nanotube (NT) structure functionalized with radicals of a first polymer; wherein the NT structure comprises:

a substrate; and

a functionalized carbon NT array grown or deposited on the substrate, the functionalized carbon NT array including a plurality of aligned or non-aligned single-walled or multi-walled carbon NTs having surfaces attached to the radicals.