Patent ID: 9412863
Filing Date: 2016-08-09
CPC Classification: H01L

Claim Text:
1. An integrated circuit (IC) comprising: a substrate including a device region; a source region and a drain region, which have a first conductivity type, disposed in the device region and spaced apart from one another; a gate electrode disposed over an upper region of the device region and arranged between the source and drain regions; a body region, which has a second conductivity type opposite the first conductivity type, arranged under the gate electrode in the device region and separating the source and drain regions; a lateral drain extension region, which has the first conductivity type, disposed in the upper region of the device region and extending laterally between the body and drain regions; a breakdown voltage enhancing region, which has the second conductivity type, disposed in the device region and arranged under the lateral drain extension region; and an additional lateral drain extension region, which has the first conductivity type, disposed in the device region and under the breakdown voltage enhancing region.