Patent ID: 9570596
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A super junction semiconductor device, comprising: a semiconductor portion comprising mesa regions protruding from a base section and spatially separated in a lateral direction parallel to a first surface of the semiconductor portion; and a compensation structure covering at least sidewalls of the mesa regions, the compensation structure comprising at least two first compensation layers of a first conductivity type, at least two second compensation layer of a complementary second conductivity type, and at least one interdiffusion layer between one of the first and one of the second compensation layers, wherein the compensation structure covers portions of the end faces of the mesa regions, surficial lateral faces of the compensation structures cut the first and second compensation layers in a vertical projection of the mesa regions, and the super junction semiconductor device comprises body zones of the second conductivity type extending along the surficial lateral faces and structurally connecting the second compensation layers.