SEMICONDUCTOR DEVICE AND METHOD OF MANUFACTURING THE SAME

Disclosed herein is a semiconductor device including a semiconductor substrate, a collector layer formed under the semiconductor substrate, a base layer formed on the semiconductor substrate, an emitter layer formed on the base layer, one or more trench barriers vertically penetrating the base layer and the emitter layer, a first gate insulating layer formed on the trench barriers and the emitter layer such that an upper portion of the emitter layer is partially exposed, a gate formed on the first gate insulating layer, a second gate insulating layer formed to cover the gate, and an emitter metal layer formed on an upper portion of the emitter layer exposed by the first gate insulating layer.