Patent ID: 9324783
Filing Date: 2016-04-26
CPC Classification: H01L

Claim Text:
1. A semiconductor device comprising: a semiconductor body having a first side and a second side opposite the first side, the second side being arranged distant from the first side in a first vertical direction; a rectifying junction; a field stop zone of a first conduction type arranged in the semiconductor body; and a drift zone of the first conduction type arranged in the semiconductor body between the rectifying junction and the field stop zone; wherein the semiconductor body has, along a straight line running parallel to the first vertical direction, a net doping concentration; and wherein at least one of (a) and (b) applies: (a) the drift zone comprises, at a first depth, a doping charge centroid, wherein a distance between the rectifying junction and the doping charge centroid is less than 37% of a thickness of the drift zone in the first vertical direction; (b) the absolute value of the net doping concentration comprises, along the straight line and inside the drift zone, a local maximum value.