低温多晶硅发射极晶体管电流增益模型和模拟
MODEL AND MODELING OF LOW TEMPERATURE CURRENT GAIN OF POLYSILICON EMITTER BIPOLAR TRANSISTOR
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摘要: 本文考虑禁带变窄效应、载流子冻析效应和多晶硅/单晶硅界面复合与氧化层隧穿效应,采用有效复合速度方法,建立了多晶硅发射极晶体管电流增益的温度关系模型。模拟计算结果与实验符合较好。Abstract: A unified model of low temperature current gain of polysilicon emitter bipolar transistors based on effective recombination speed method is presented, incorporating bandgap narrowing, carrier freezing-out and tunneling of holes through interface oxide. The modeling results based on the unified model are in good agreement with experimental data.
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