Patent ID: 8847277

Claim:
A reverse-conducting power semiconductor device with a wafer having a first main side and a second main side arranged parallel to the first main side, the device comprising: a plurality of diode cells and a plurality of IGCT cells, wherein each IGCT cell includes layers in an order between the first and second main side as follows: a cathode electrode, a first cathode layer of a first conductivity type, a base layer of a second conductivity type, a drift layer of the first conductivity type, a buffer layer of the first conductivity type, a first anode layer of the second conductivity type, a first anode electrode, wherein each IGCT cell includes a gate electrode, which is arranged lateral to the first cathode layer and separated from the first cathode layer by the base layer, and wherein each diode cell includes a second anode electrode on the first main side, a second anode layer of the second conductivity type, which is separated from the base layer by the drift layer, and a second cathode layer of the first conductivity type, which is arranged alternating to the first anode layer on the second main side, and at least one mixed part in which the second anode layers of the diode cells alternate with the first cathode layers of the IGCT cells.