Patent ID: 6833298
Filing Date: 2004-12-21
Classification: H01L

Abstract:
A method for fabricating a semiconductor component, the method which comprises:providing a semiconductor body having a front side, a rear side, at least one transistor cell with at least one channel zone extending into the semiconductor body from the front side, at least one edge cell having at least one first terminal zone configured at a distance from the channel zone, an insulation layer applied to the front side of the semiconductor body, an electrode layer applied to the insulation layer, a cutout formed above the channel zone in the insulation layer and in the electrode layer, and a cutout formed above first terminal zone in the insulation layer and in the electrode layer, the channel zone and the first terminal zone being doped by the same conduction type, which is complementary with respect to surrounding regions of the semiconductor body, the edge cell being adjacent the transistor cell, and the first terminal zone extending into the semiconductor body from the front side; doping a region of the channel zone that is uncovered by the cutout formed above the channel zone with a dopant of a complementary conduction type with respect to the channel zone to form a first complementary doped region, and doping a region of the first terminal zone that is uncovered by the cutout formed above the first terminal zone with a dopant of a complementary conduction type with respect to the first terminal zone to form a second complementary doped region; depositing a further insulation layer and patterning the insulation layer to produce a first cutout above the channel zone and to produce a second cutout above the first terminal zone, the electrode layer in the channel zone remaining covered by the insulation layer, the second cutout exposing the cutout formed above the first terminal zone in the electrode layer and in the insulation layer; and fabricating a first contact hole at a bottom of the first cutout of the further insulation layer, the first contact hole reaching through the first complementary doped region into the channel zone, and fabricating a second contact hole above the first terminal zone to at least approximately remove the second complementary doped region.