Patent ID: 9680005
Date: 2017-06-13
CPC Classifications: H01L

Claim:
1. A semiconductor device formed in a semiconductor substrate including a first main surface, comprising: a drift region of a first conductivity type; a body region of a second conductivity type, the body region being disposed between the drift region and the first main surface; a first transistor cell and a second transistor cell, each of the first and second transistor cells comprising an active trench at the first main surface and extending into the drift region; a gate conductive layer disposed in the active trench; and a source region formed in the body region adjacent to the active trench, the semiconductor device further comprising a first body trench and a second body trench between the first and the second transistor cells, the first and second body trenches being formed in the first main surface and extending into the drift region, the first and second body trenches being adjacent to the body region and the drift region, a conductive material in at least one of the first and second body trenches being connected with a gate terminal, at least one of the first and second body trenches being different from the active trench in shape, material(s) inside the trench or functionality.