Patent ID: 6384469
Filing Date: 2002-05-07
Classification: H01L

Abstract:
A vertical bipolar transistor, comprising an intrinsic collector semiconductor region surrounded by a lateral isolation; a semiconductor layer situated partially between the emitter and the intrinsic collector and extending on either side of the emitter above the lateral isolation region; an intrinsic base region formed in said semiconductor layer between the emitter and the intrinsic collector, an extrinsic base region and an extrinsic collector region comprising respectively first zones formed in said semiconductor layer, said zones being situated respectively on either side of the emitter and above a first part of the lateral isolation region and mutually isolated electrically by a second part of the lateral isolation region as well as second zones extending into the intrinsic collector and base and collector metallizations respectively situated in contact with said first corresponding zones above said first part of the lateral isolation region.