Patent ID: 8866215
Filing Date: 2014-10-21
Classification: H01L

Abstract:
1. A semiconductor component comprising: a semiconductor body having a cell array region with cell array trenches and a body region of a first conductivity type, the body region adjoining a drift zone of a second conductivity type which is opposite to the first conductivity type, an interface between the drift zone and the body region extending parallel to a surface of the semiconductor body in the cell array region; an edge region with pn junction and without trenches; a transition region with at least one trench, the transition region formed between the cell array region and the edge region; and wherein a gate electrode adjoining an insulating structure is formed in the cell array trenches and in each of the at least one trench in the transition region, respectively, the insulation structure being formed on sidewalls and a bottom wall of the at least one trench in the transition region, wherein in at least one trench in the transition region, a source region only adjoins the insulation structure on one sidewall of the at least one trench in the transition region, wherein a depth, relative to a surface of the semiconductor body, of the gate electrode adjoining the insulating structure in the at least one trench in the transition region lies between the depth of the body region and the depth of the gate electrode adjoining the insulating structure in the cell array trenches, wherein the cell array trenches project deeper into the semiconductor body than the body region by a depth difference, and wherein the gate electrode adjoining the insulating structure in at least one trench in the transition region projects deeper into the semiconductor body than the body region in the cell array region at most by 70% of the depth difference, and the gate electrodes in each of the at least one trench in the transition region are connected to a predetermined potential.