Patent ID: 7268011

Claim:
A method of making a diamond composite heat spreader comprising the steps of: a) providing a first plurality of diamond particles having a first average mesh size; b) packing the diamond particles such that each diamond particle is substantially in diamond-diamond contact with at least one other diamond particle; c) providing an interstitial material, said interstitial material including Ag, Cu, Al, Si, or BNi 2 ; d) providing porous ceramic material prior to the step of bonding; e) placing the ceramic material adjacent to the packed diamond particles prior to the step of bonding; and f) infiltrating the interstitial material into the diamond particles in a vacuum furnace at a pressure below about 10-3 torr, thereby bonding the packed diamond particles by the interstitial material with the interstitial material at least partially filling any voids between the packed diamond particles.