SEMICONDUCTOR DEVICE INCLUDING PROTRUDING REGION

A semiconductor device includes: a drift region of a first conductivity type arranged between first and second surfaces of a semiconductor body; a first region of the first conductivity type at the second surface; a second region of a second conductivity type arranged adjacent to the first region at the second surface, the second region including first and second sub-regions, the second sub-region arranged between the first sub-region and the second surface; and a first electrode on the second surface and arranged directly adjacent to the first region and the second sub-region. The first electrode is electrically connected to the drift region by the first region. The first sub-region protrudes, along a first lateral direction, over an interface or a separation region between the second sub-region and the first region. A part of the first region is confined by the first sub-region and the first electrode along a vertical direction.