Patent ID: 8456785
Filing Date: 2013-06-04
Classification: H01L

Abstract:
1. A semiconductor device comprising: an ESD device region disposed within a semiconductor body; a first device region of a first conductivity type disposed on a second device region of a second conductivity type, the second conductivity type opposite the first conductivity type, wherein the first device region is coupled to a first ESD node, and wherein the second device region is disposed within the ESD device region; a third device region of the second conductivity type disposed on the second device region; a fourth device region of the first conductivity type adjacent to the second device region, the fourth device region disposed within the ESD device region; a fifth device region of the second conductivity type disposed within the fourth device region, wherein the first device region, the second device region, the fourth device region, and the fifth device region forming a silicon controlled rectifier (SCR), wherein the fifth device region is coupled to a second ESD node; and a sixth device region of the second conductivity type adjacent to the fourth device region, wherein the fourth device region and the sixth device region contact at a shared interface to form a diode junction.