Patent ID: 9214542
Filing Date: 2015-12-15
Classification: H01L

Abstract:
1. A semiconductor device comprising: a substrate; a body region in the substrate and having a first conductivity type; source and drain regions in the substrate, having a second conductivity type, and spaced from one another to define a conduction path that passes through the body region; a doped isolating region in the substrate, having the second conductivity type, and configured to surround a device area in which the conduction path is disposed; an isolation contact region in the substrate, having the second conductivity type, and electrically coupled to the doped isolating region to define a collector region of a bipolar transistor; and first and second contact regions within the body region, having the first and second conductivity types, respectively, and configured to define a base contact region and an emitter region of the bipolar transistor, respectively; wherein the doped isolating region and the body region are spaced from one another to establish a first breakdown trigger voltage level of the bipolar transistor lower than a second breakdown voltage level of the semiconductor device along the conduction path.