Patent ID: 7772609

Claim:
A package for an LED and for attachment to a substrate comprising: a top body layer; an intermediate body layer bonded to the top body layer; a cavity disposed through the top body layer and the intermediate body layer and having a floor for bonding to the LED; a thermal conduction layer bonded to the intermediate body layer and having a first shape which includes a corner, a top surface forming the floor of the cavity and a bottom surface, the thermal conduction layer including a thermally conducting ceramic material disposed between the floor and the bottom surface and having a thermal conductivity greater than 14 W/m° K; and a metallization pattern including a central pad, the central pad plated on the bottom surface of the thermal conduction layer and having a second shape which has a continuously curved periphery without a corner, the first shape of the thermal conduction layer which includes a corner different than the second shape of the central pad which has a continuously curved periphery.