Patent ID: 6462378
Filing Date: 2002-10-08
Classification: H01L

Abstract:
A power MOS transistor comprising:a drift region of a first conductivity type formed on a semiconductor substrate; a body region of a second conductivity type formed in a predetermined upper region of the drift region; a source region of the first conductivity type including a first source region formed in the body region, adjacent to channel formation portions of the body region, and a second source region connecting opposing portions of the first source region; a plurality of heavily-doped regions of the second conductivity type formed between the first source region in the body region and the second source region; a drain region of the first conductivity type formed in a predetermined region of the drift region; an insulating layer formed over the first source region and the edge of the body region; a gate electrode formed over the insulating layer; a source electrode formed by a source contact exposing the second source region and the heavily-doped region of the second conductivity type; and a drain electrode formed by a drain contact exposing the drain region.