Patent ID: 8299532
Filing Date: 2012-10-30
Classification: H01L

Abstract:
1. An electrostatic discharge (ESD) protection device structure, disposed in a semiconductor substrate, and the ESD protection device structure comprising: a well, having a first conductive type; a first doped region, having a second conductive type and disposed in the well; a second doped region, having the first conductive type, the second doped region disposed within the first doped region, and the first doped region and the second doped region forming a first vertical bipolar junction transistor (BJT), wherein a part of the first doped region is disposed on the second doped region, and another part of the first doped region is disposed under the second doped region; and a third doped region, having the second conductive type, the third doped region disposed in the well, and the first doped region, the well and the third doped region forming a lateral BJT, wherein the well is disposed between the first doped region and the third doped region.