中国物理B ›› 2009, Vol. 18 ›› Issue (2): 763-767.doi: 10.1088/1674-1056/18/2/058

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Thermal analytic model of current gain for bipolar junction transistor-bipolar static induction transistor compound device

张有润, 张波, 李泽宏, 赖昌菁, 李肇基   

  1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • 收稿日期:2008-07-07 修回日期:2008-07-18 出版日期:2009-02-20 发布日期:2009-02-20

Thermal analytic model of current gain for bipolar junction transistor-bipolar static induction transistor compound device

Zhang You-Run(张有润), Zhang Bo(张波), Li Ze-Hong(李泽宏), Lai Chang-Jin(赖昌菁), and Li Zhao-Ji(李肇基)   

  1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China
  • Received:2008-07-07 Revised:2008-07-18 Online:2009-02-20 Published:2009-02-20

摘要: This paper proposes a thermal analytical model of current gain for bipolar junction transistor-bipolar static induction transistor (BJT-BSIT) compound device in the low current operation. It also proposes a best thermal compensating factor to the compound device that indicates the relationship between the thermal variation rate of current gain and device structure. This is important for the design of compound device to be optimized. Finally, the analytical model is found to be in good agreement with numerical simulation and experimental results. The test results demonstrate that thermal variation rate of current gain is below 10% in 25℃--85℃ and 20{\%} in -55℃--25℃.

关键词: bipolar junction transistor-bipolar static induction transistor, thermal analytic model, current gain

Abstract: This paper proposes a thermal analytical model of current gain for bipolar junction transistor-bipolar static induction transistor (BJT-BSIT) compound device in the low current operation. It also proposes a best thermal compensating factor to the compound device that indicates the relationship between the thermal variation rate of current gain and device structure. This is important for the design of compound device to be optimized. Finally, the analytical model is found to be in good agreement with numerical simulation and experimental results. The test results demonstrate that thermal variation rate of current gain is below 10% in 25℃--85℃ and 20% in -55℃--25℃.

Key words: bipolar junction transistor-bipolar static induction transistor, thermal analytic model, current gain

中图分类号:  (Bipolar transistors)

  • 85.30.Pq
85.30.De (Semiconductor-device characterization, design, and modeling)