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Semiconductor device in which an insulated-gate bipolar transistor ( IGBT) region and a diode region are formed on one semiconductor substrate
Semiconductor device in which an insulated-gate bipolar transistor ( IGBT) region and a diode region are formed on one semiconductor substrate
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机译:在一个半导体衬底上形成绝缘栅双极型晶体管(IGBT)区和二极管区的半导体器件
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摘要
The present application discloses a semiconductor device in which an IGBT region and a diode region are formed on one semiconductor substrate. The IGBT region includes: a collector layer; an IGBT drift layer; a body layer; a gate electrode; and an emitter layer. The diode region includes: a cathode layer; a diode drift layer; an anode layer; a trench electrode; and an anode contact layer. The diode region is divided into unit diode regions by the gate electrode or the trench electrode. In a unit diode region adjacent to the IGBT region, when seen in a plan view of the front surface of the semiconductor substrate, the anode layer and the anode contact layer are mixedly placed, and the anode contact layer is placed at least in a location opposite to the emitter layer with the gate electrode interposed therebetween.
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