ELDRS and dose-rate dependence of vertical NPN transistor

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ZHENG Yu-Zhan, LU Wu, REN Di-Yuan, WANG Gai-Li, YU Xue-Feng and GUO Qi. ELDRS and dose-rate dependence of vertical NPN transistor[J]. Chinese Physics C, 2009, 33(1): 47-49. doi: 10.1088/1674-1137/33/1/010
ZHENG Yu-Zhan, LU Wu, REN Di-Yuan, WANG Gai-Li, YU Xue-Feng and GUO Qi. ELDRS and dose-rate dependence of vertical NPN transistor[J]. Chinese Physics C, 2009, 33(1): 47-49.  doi: 10.1088/1674-1137/33/1/010 shu
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Received: 2008-04-01
Revised: 2008-05-30
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ELDRS and dose-rate dependence of vertical NPN transistor

    Corresponding author: ZHENG Yu-Zhan,

Abstract: 

The enhanced low-dose-rate sensitivity (ELDRS) and dose-rate dependence of vertical NPN transistors are investigated in this article. The results show that the vertical NPN transistors exhibit more degradation at low dose rate, and that this degradation is attributed to the increase on base current. The oxide trapped positive charge near the SiO2-Si interface and interface traps at the interface can contribute to the increase on base current and the two-stage hydrogen mechanism associated with space charge effect can well explain the experimental results.

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