Citation: |
Jinxin Zhang, Hongxia Guo, Lin Wen, Qi Guo, Jiangwei Cui, Xin Wang, Wei Deng, Qiwen Zhen, Xue Fan, Yao Xiao. 3-D simulation of angled strike heavy-ion induced charge collection in silicon-germanium heterojunction bipolar transistors[J]. Journal of Semiconductors, 2014, 35(4): 044003. doi: 10.1088/1674-4926/35/4/044003
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J X Zhang, H X Guo, L Wen, Q Guo, J W Cui, X Wang, W Deng, Q W Zhen, X Fan, Y Xiao. 3-D simulation of angled strike heavy-ion induced charge collection in silicon-germanium heterojunction bipolar transistors[J]. J. Semicond., 2014, 35(4): 044003. doi: 10.1088/1674-4926/35/4/044003.
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3-D simulation of angled strike heavy-ion induced charge collection in silicon-germanium heterojunction bipolar transistors
DOI: 10.1088/1674-4926/35/4/044003
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Abstract
This paper presents 3-D simulation of angled strike heavy-ion induced charge collection in domestic silicon-germanium heterojunction bipolar transistors (SiGe HBTs). 3D damaged model of SiGe HBTs single-event effects (SEE) is built by TCAD simulation tools to research ions angled strike dependence. We select several different strike angles at variously typical ions strike positions. The charge collection mechanism for each terminal is identified based on analysis of the device structure and simulation results. Charge collection induced by angled strike ions presents a complex situation. Whether the location of device ions enters, as long as ions track through the sensitive volume, it will cause vast charge collection. The amount of charge collection of SiGe HBT is not only related to length of ions track in sensitive volume, but also influenced by STI and distance between ions track and electrodes. The simulation model is useful to research the practical applications of SiGe HBTs in space, and provides a theoretical basis for the further radiation hardening. -
References
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