Patent ID: 7579686

Claim:
An electronic assembly comprising: a heat spreader; a die; a thermal interface material positioned between the thermally conductive heat spreader and the die; the heat spreader including a surface facing the thermal interface material; the die including a surface facing the thermal interface material; the die surface including a first hot spot, the first hot spot comprising a location on the die surface having a higher surface temperature during operation than another location on the die surface; the heat spreader surface including a first structure thereon, the structure being positioned in alignment with the first hot spot; wherein the thermal interface material has a first thickness between the surface of the die at the hot spot and the structure on the heat spreader surface; wherein the thermal interface material has a second thickness between the surface of the die adjacent to the hot spot and a position adjacent to the structure on the surface of the heat spreader; and wherein the first thickness is smaller than the second thickness.