Patent ID: 6376875
Filing Date: 2002-04-23
Classification: H01L

Abstract:
A semiconductor component, comprising:a semiconductor substrate of a second conduction type; first and second doped zones of a first conduction type disposed in said semiconductor substrate, said first doped zone having a surface and a peripheral region; a channel zone disposed between said first and second doped zones in said semiconductor substrate, said channel zone having a surface; a tunnel dielectric partly covering said surface of said first doped zone and defining a given region of said first doped zone disposed under said tunnel dielectric, said given region having a surface defined by a portion of said surface of said first doped zone, said surface of said given region located under said tunnel dielectric; a gate dielectric covering said surface of said channel zone and said peripheral region of said first doped zone; and a gate electrode on said tunnel dielectric and on said gate dielectric; said peripheral region extending into said semiconductor substrate, in a direction perpendicular to said surface of said first doped zone, to a greater extent than said given region, said peripheral region having a higher effective doping than said given region, and said peripheral region completely surrounding said given region except for said surface of said given region.