Patent ID: 6147369
Filing Date: 2000-11-14
Classification: H01L

Abstract:
A structure of an electrostatic discharge protective circuit, comprising:a first-type substrate;a second-type well formed in the first-type substrate;a first second-type diffusion region formed in the second-type well and electrically coupled to a first electrode;a first first-type diffusion region formed in the second-type well, separated from the first second-type diffusion region and electrically coupled to the first electrode;a second first-type diffusion region formed in the second-type well, separated from the first first-type diffusion region and electrically coupled to a second electrode;a second second-type diffusion region formed in the first-type substrate separated from the second first-type diffusion region and electrically coupled to the second electrode;a third first-type diffusion region formed in the first-type substrate, separated from second second-type diffusion region and electrically coupled to the second electrode.