Patent ID: 7960032

Claim:
A three dimensional composite sheet having a major surface defined by a first and a second dimension of the composite sheet and a thickness defined by a third dimension of the composite sheet, the major surface defining an outermost boundary of the composite sheet that is externally exposed, the composite sheet having a first material and a second material which combine to give the composite sheet a compressive strength that is higher than a compressive strength of the second material and a thermal conductivity that is higher than a thermal conductivity of the first material, the composite sheet comprising: a first sheet material area of the sheet major surface which is defined by at least a portion of the first sheet material for primarily withstanding a compressive force substantially normal to the major surface; and a second sheet material area of the composite sheet major surface which is defined by at least a portion of the second sheet material and is arranged to give the composite sheet a particular thermal conductivity that is higher along at least one of the first and second dimensions than a different thermal conductivity through the thickness of the composite sheet for primarily conducting heat along at least one of the first and second dimensions of the composite sheet, and where the composite sheet includes two different portions and the first sheet material and second sheet material of the composite sheet are arranged in a first complementary patterns relative to one another in one of the different portions, and the first sheet material and the second sheet material of the composite sheet are arranged in a second, different complementary pattern relative to one another in the other one of the two different portions.