Electro-static discharge protection device having a low trigger voltage

摘要

An electrostatic discharge protection device of the present disclosure includes a first well region of a first conductivity type, a second well region of a second conductivity type disposed in contact with the first well region, and a first conductivity type disposed in the first well region a first diffusion region of the same type, a second diffusion region of a second conductivity type disposed to be spaced apart from the first diffusion region in the first well region, and a third diffusion region of a second conductivity type disposed in the second well region a fourth diffusion region of the first conductivity type disposed to be spaced apart from the third diffusion region in the second well region; a resist layer pattern disposed to be coupled to the first diffusion region through a first contact; and a second contact a first electrode layer pattern electrically coupled to the resist layer pattern while coupled to the second diffusion region through It includes an electrode layer pattern.