Patent ID: 7154152

Claim:
A semiconductor device comprising: a p-type semiconductor substrate; a low-concentration n-type semiconductor region formed in the p-type semiconductor substrate; a first electrode; a first high-concentration p-type semiconductor region formed in the low-concentration n-type semiconductor region and connected to the first electrode; a resistive element; a first high-concentration n-type semiconductor region formed in the low-concentration n-type semiconductor region and connected by way of the resistive element to the first electrode; a low-concentration p-type semiconductor region formed contiguously with the first high-concentration n-type semiconductor region; a second electrode; a second high-concentration n-type semiconductor region formed in the p-type semiconductor substrate and connected to the second electrode; a second high-concentration p-type semiconductor region formed in the p-type semiconductor substrate and connected to the second electrode; and an element separator portion formed between the low-concentration p-type semiconductor region and the second high-concentration n-type semiconductor region.