Patent ID: 7579658
Filing Date: 2009-08-25
Classification: H01L

Abstract:
1. An ESD protection device comprising: a substrate; an isolation region on the substrate, enclosing an active region; a first gate coupled to a first node, wherein the first gate has first and second ends, first and second oblique portions and a center portion, wherein the first and second ends overlap the isolation region to stretch over the active region; and a first and second doping regions on the first and a second sides of the first gate, and coupled to a second and the first nodes respectively; and wherein the center portion of the first gate protrudes into the first doping region and is parallel to the first and second ends of the first gate, wherein the first end and the center portion of the first gate are connected by the first oblique portion of the first gate, and the second end and the center portion of the first gate are connected by the second oblique portion of the first gate.