Patent ID: 8319315

Claim:
A bipolar junction transistor (BJT) device including a base region, an emitter region and a collector region, the BJT device comprising: a substrate; a deep well region in the substrate; a first well region in the deep well region to serve as the base region; a second well region in the deep well region to serve as the collector region, the second well region and the first well region forming a first junction therebetween; a first doped region in the first well region to serve as the emitter region, the first doped region and the first well region forming a second junction therebetween; at least one second doped region dispersed in the first well region; and a third doped region in the second well region, wherein the first doped region includes a first section extending in a first direction and a second section extending in a second direction different from the first direction, the first section and the second section being coupled with each other, and wherein the at least one second doped region includes doped regions separated by the first section and the second section of the first doped region.