Patent ID: 7036573

Claim:
A thermal interface material, comprising: a binder material; and a fusible filler within the binder material, the fusible filler randomly positioned with respect to the binder material, wherein the fusible filler is selected from the group consisting of an indium alloy that includes silver in an approximate range of 1 to 20 percent by weight, a tin alloy that includes copper in an approximate range of 0.7 to 1.4 percent by weight, a tin alloy that includes silver in an approximate range of 1 to 5 percent by weight, a tin alloy that includes tin in an approximate range of 42 to 85 percent by weight and bismuth in an approximate range of 15 to 58 percent by weight, a tin alloy that includes silver in an approximate range of 3.0 to 4.0 percent by weight and copper in an approximate range of 0 to 1.7 percent by weight, a tin alloy that includes silver in an approximate range of 3 to 4 percent by weight and bismuth in an approximate range of 1 to 6 percent by weight, and a tin alloy that includes silver approximately 1 percent by weight and bismuth approximately 57 percent by weight; a plurality of non-fusible particles having a mean diameter of approximately 25 microns, within the binder material, the non-fusible particles randomly positioned with respect to the binder material, the fusible filler coated onto the non-fusible particles wherein a volume percent of the fusible filler to non-fusible particles is in a range of approximately 10–50 percent by volume of fusible filler, wherein the non-fusible particles are selected from the group consisting of ceramic fiber, graphite fibers, carbon fibers, aluminum oxides, zinc oxide, graphite, carbon nanotubes, and silicon carbide.