Patent ID: 10115793

Abstract:
An improvement is achieved in the IE effect of a semiconductor device including an IGBT having an active cell region with an EGE structure. Each of a plurality of hybrid cell regions extending in a Y-axis direction has first, second, and third trench electrodes extending in the Y-axis direction, a p-type body region, and contact trenches provided between the first and second trench electrodes and between the first and third trench electrodes to extend in the Y-axis direction and reach middle points in the p-type body region. Each of the hybrid cell regions further has a plurality of n+-type emitter regions formed in an upper surface of a semiconductor substrate located between the contact trenches and the first trench electrode to be shallower than the contact trenches and spaced apart at regular intervals in the Y-direction in plan view. The n+-type emitter regions are arranged in a staggered configuration in plan view.