Patent ID: 6576974
Filing Date: 2003-06-10
Classification: H01L,Y10S

Abstract:
An integrated circuit device, comprising:a substrate; a dielectric layer disposed over the substrate; and a layer of silicon, formed over the dielectric layer, including a first portion, a second portion, and a third portion disposed between the first and second portions, wherein the first and second portions are doped with the same type of impurity and the third portion is doped with a different type of impurity from the first and second portions, and wherein the first, second and third portions form a silicon bipolar junction transistor, the first and second portions being one of collector and emitter, and the third portion being a base of the silicon bipolar junction transistor, and wherein the silicon bipolar junction transistor is turned on to discharge an electrostatic discharge (ESD) when the ESD appears on one of the collector, the emitter and the base, and another one of the collector, the emitter and the base is coupled to a relative ground.