Electrostatic Characteristics of High-k Stacked Gate-All-Around Heterojunction Tunnel Field Effect Transistor using Superposition Principle
Abstract We use superposition method to model the electrostatic characteristics of high-k stacked Gate-All-Around Hetero Junction TFETs (GAA-HJTFETs). The hetero junction is set up by using Ge/Si material in the source/channel respectively. The modeling is accomplished by considering the space charge regions at the source-channel/drainchannel junctions and the channel region. The surface potential in the channel region is obtained by applying superposition principle, where as in source/drain it is derived by solving 2-D/1-D Poisson's equation respectively. Furthermore, the electric field and drain current are modeled from the surface potential and Kane model respectively. The results are confirmed using ATLAS TCAD simulation.
2020 ◽
Vol 19
(3)
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pp. 1154-1163
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2020 ◽
Vol 21
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pp. 339-347
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2016 ◽
Vol 59
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pp. 30-36
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2019 ◽
Vol 14
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pp. 868-876
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2009 ◽
Vol 56
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pp. 100-108
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