Patent ID: 6724040
Filing Date: 2004-04-20
Classification: H01L

Abstract:
An MIS type semiconductor device which comprises:a second conductivity type semiconductor substrate layer, a first conductivity type diffusion layer on the top of said second conductivity type semiconductor substrate layer; a second conductivity type drift path region on the top of said first conductivity type diffusion layer; a first conductivity type compartment region on the top of said second conductivity type drift path region; a second conductivity type drain region in contacts with said second conductivity type drift path region; a second conductivity type source region spaced apart from said second conductivity type drift path region by part of said first conductivity type diffusion layer; and a gate electrode provided via a gate insulation film on the surface of the first conductivity type diffusion layer between the drift path region and the source region, wherein a drift current shall flow in a lateral direction.