Patent ID: 8546850

Claim:
A transistor having a superjunction collector structure, the transistor comprising: a collector electrode, a base electrode, and an emitter electrode; a collector-base space charge region disposed in electrical communication between the collector electrode and the base electrode; and a superjunction collector region disposed in the collector-base space charge region, the superjunction collector region comprising a plurality of alternating horizontally disposed P-type and N-type layers such that the horizontally disposed layers are layered on top of each other, wherein the P-type and N-type layers are doped with different types of doping levels, wherein the horizontally disposed layers in the superjunction collector region in concert form a vertical column superjunction collector that is positioned vertical relative to a subcollector region and a base region, wherein each of the plurality of horizontally disposed layers in the superjunction collector have a doping concentration between 10 16 cm −3 and 10 19 cm −3 and a thickness between 5 nm and 500 nm.