Patent ID: 8030757

Claim:
An apparatus comprising: a substrate; a die having a front side coupled to the substrate by a plurality of contacts, the die including a metallization structure on a backside thereof, the metallization structure including a first nickel-copper (Ni—Cu) layer on the backside; a heat spreader formed of a conductive material, the heat spreader including a contact surface, wherein at least a portion of the contact surface is covered with a second Ni—Cu layer on the contact surface; and a thermal interface material (TIM) located between and bonded to the die and to the heat spreader, wherein the TIM is formed from an alloy including indium (In), tin (Sn) and copper (Cu), a weight percentage of the Sn is less than about 10%, a weight percentage of the Cu is less than about 3%, and the TIM has a gold (Au) coating adapted on a first side and a second side of the TIM.