Patent ID: 9412827
Filing Date: 2016-08-09
CPC Classification: H01L

Claim Text:
1. A vertical semiconductor device, comprising: a semiconductor body having a backside and extending, in a peripheral area and in a vertical direction substantially perpendicular to the backside, from the backside to a first surface of the semiconductor body, the semiconductor body comprising in an active area a plurality of spaced apart semiconductor mesas extending, in the vertical direction, from the first surface to a main surface arranged above the first surface, in a vertical cross-section the peripheral area extending between the active area and an edge that extends between the back-side and the first surface, in the vertical cross-section each of the semiconductor mesas comprising a first side wall, a second side wall, a first pn-junction extending between the first side wall and the second side wall, and a conductive region in Ohmic contact with the semiconductor mesa and extending from the main surface into the semiconductor mesa; a plurality of gate electrodes insulated from the semiconductor body, each of the gate electrodes arranged between a pair of adjacent semiconductor mesas and extending in the vertical direction across the first pn-junctions of the adjacent semiconductor mesas; and a backside metallization arranged on the backside.