ELECTROSTATIC DISCHARGE PROTECTION DEVICE

摘要

Disclosed is an electrostatic discharge protection device (101) which comprises: a substrate (1) of a first conductivity type; a first low concentration diffusion region (2) of a second conductivity type that is different from the first conductivity type and a second low concentration diffusion region (3) of the first conductivity type, said first and second low concentration diffusion regions being formed on the substrate (1); a first high concentration diffusion region (4) of the second conductivity type and a second high concentration diffusion region (5) of the first conductivity type, said first and second high concentration diffusion regions being formed in the first low concentration diffusion region (2) and electrically connected with each other; a third high concentration diffusion region (9) of the first conductivity type and a fourth high concentration diffusion region (8) of the second conductivity type, said third and fourth high concentration diffusion regions being formed in the second low concentration diffusion region (3) and electrically connected with each other; a fifth high concentration diffusion region (6) of the first conductivity type formed in the first low concentration diffusion region (2); and a sixth high concentration diffusion region (7) of the second conductivity type formed in the second low concentration diffusion region (3). The fifth high concentration diffusion region (6) and the sixth high concentration diffusion region (7) are electrically connected with each other.