Hybrid Metal Matrix Composite Packages with High Thermal Conductivity Inserts

摘要

A hybrid package for heat sinking a device is formed of a graphitic material that defines a plurality of cavities for cast-in-rivets and that defines at least one cavity for a cast-in-rivet via. The graphitic material is pressure infiltrated with a molten metal alloy so as to form a composite material with a plurality of cast-in rivets that increases at least one of the through-plane conductivity and the strength of the hybrid package and that forms at least one cast-in-rivet that increases an in-plane thermal conductivity of the hybrid package.