Patent ID: 7732834
Filing Date: 2010-06-08
Classification: H01L

Abstract:
1. A semiconductor device comprising: an ESD device region disposed within a semiconductor body, the semiconductor body of a first conductivity type; an isolation region surrounding the ESD device region; a first doped region of a second conductivity type disposed at a surface of the semiconductor body within the ESD device region, the second conductivity type different from the first conductivity type; a second doped region of the first conductivity type disposed between the semiconductor body within the ESD device region and at least a portion of the first doped region, the second doped region being doped at a higher concentration than the semiconductor body; a third doped region of the second semiconductor type disposed in the semiconductor body within the ESD device region; a fourth doped region of the first conductivity type disposed within the third doped region, wherein the edge of the third doped region is a first distance from the edge of the fourth doped region; and a fifth doped region of the second conductivity type disposed in the semiconductor body within the ESD device region a second distance from the third doped region, wherein the first doped region, second doped region, semiconductor body within the ESD device region, and fifth doped region form a trigger device; and wherein the fourth doped region, third doped region, semiconductor body within the ESD device region, and fifth doped region form an SCR.