Patent ID: 7593228

Claim:
A thermally conductive metal foil having a unitary structure of non-uniform thickness, the foil comprising a plurality of first regions and a plurality of second regions, the first regions having a first thickness and the second regions having a second thickness greater than the first thickness and forming a patterned surface on the thermally conductive metal foil, the thermally conductive metal foil configured to facilitate heat dissipation from at least one integrated circuit device to at least one heat sink when disposed directly between and in direct contact with the at least one integrated circuit device and the at least one heat sink, the thermally conductive metal foil being formed of a material that is deformable and adaptable to irregularities, thereby conforming to shapes of such irregularities, in at least one contact surface of at least one of the at least one integrated circuit device and the at least one heat sink, the thermally conductive metal foil being formed with an alloy comprising indium.