Patent ID: 6849943

Claim:
A power module package for a solid state switching system, said power module package comprising: a heat sink having a flat, planar surface; a ceramic card assembly having a flat planar electrically insulating and thermally conductive ceramic layer with opposed first and second faces; a metallic layer bonded onto said first face of said ceramic layer, said metallic layer being bonded to said flat, planar heat sink surface; a metallic pattern bonded onto said second face of said ceramic layer; a plurality of high power solid state switch units, each having a flat, planar base contact; said metallic pattern including a base area for each of said switch units; a plurality of lead frames, one for each of said switch units, each said lead frame including a pad portion having opposed first and second surfaces and including a terminal portion; said first surfaces of said pad portions being bonded to said base areas of said metallic pattern and said second surfaces of said pad portions being bonded to said base portions of said switch units.