Patent ID: 6407922
Filing Date: 2002-06-18
Classification: B82Y,H01L,Y10S

Abstract:
A heat spreader, comprising:a matrix material; and at least one of carbon nanotubes and thermal pyrolytic graphite flakes distributed through the matrix material, wherein the heat spreader has a first surface adapted to be in contact with a source of heat a second surface opposed to the first surface wherein the second surface has a larger surface area than that of the first surface, and wherein said at least one of carbon nonotubes and thermal pyrolytic graphite flakes is distributed and oriented from the first surface to the second surface through the matrix material, such that the at lest one of carbon nanotube and thermal pyrolytic graphite flakes spreads out extending from the first surface to the second surface, so that the heat spreader is adapted to conduct heat from said first surface to said second surface, and spread out the heat conducted from the first surface to the second surface, as the heat is conducted from the first surface to the second surface, so as to spread the heat over a larger area at the second surface than at the first surface when the source of heat is in contact with the first surface.