Patent ID: 8502347

Claim:
A bipolar junction transistor comprising: a crystalline semiconductor substrate of a first conductivity type; an emitter contact of a second conductivity type opposite to the first conductivity type located on a first surface portion of said crystalline semiconductor substrate; a collector contact of the second conductivity type located on a second surface portion of said crystalline semiconductor substrate; a base contact of the first conductivity type located on a third surface portion of said crystalline semiconductor substrate; a first electrode located on an exposed surface of the emitter contact; a second electrode located on an exposed surface of the collector contact; and a third electrode located on an exposed surface of the base contact, wherein at least one of said emitter contact, said collector contact and said base contact comprises a crystalline doped Si x Ge 1-x material containing from 5 atomic % to 40 atomic % hydrogen, wherein x is 0≦x≦1.