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电子学报  2003 

4H-SiCnpnBJT特性研究

, PP. 2201-2204

Keywords: 4H-SiC,物理模型,双极型晶体管

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Abstract:

基于二维器件仿真软件Medici对4H-SiC双极型晶体管(BJT)进行了建模,包括能带模型、能带窄变模型、迁移率模型、产生复合模型和不完全电离模型,为4H-SiC的工艺与器件提供了设计平台.在此基础上对4H-SiCBJT器件进行了模拟研究.结果显示,器件基极电流IB=1μA/μm时发射极电流增益β为32.4,击穿电压BVCEO大于800V,截止频率fT接近1GHZ.

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