Patent ID: 7323390

Claim:
A semiconductor device comprising: a semiconductor substrate ( 1 ) including an active region ( 3 ), a field insulating region ( 2 ) that delimits the active region ( 3 ) of the semiconductor substrate ( 1 ), a collector ( 10 ), at least one collector contact region ( 11 ) associated with the collector ( 10 ), and a base ( 30 b ) with an associated base connection region ( 31 a, b, c ) wherein the collector ( 10 ) and the collector contact region ( 11 ) are both formed in the active region ( 3 ), wherein the base connection region ( 31 a, b, c ) extends partially over the active region ( 3 ) away from the surface of the semiconductor substrate ( 1 ) and is separated from the surface of the active region ( 3 ) by an insulator layer ( 20 , 21 ), and wherein the field insulating region ( 2 ) extends in a direction away from the surface of the semiconductor substrate ( 1 ) an extent of between 100 nm and 600 nm, and the collector ( 10 ) extends in the same direction no farther than the field insulating region ( 2 ).