Impact of interface traps on direct and alternating current in tunneling field-effect transistors

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Abstract

We demonstrate the impact of semiconductor/oxide interface traps (ITs) on the DC and AC characteristics of tunnel field-effect transistors (TFETs). Using the Sentaurus simulation tools, we show the impacts of trap density distribution and trap type on the n-type double gate- (DG-) TFET. The results show that the donor-type and acceptor-type ITs have the great influence on DC characteristic at midgap. Donor-like and acceptor-like ITs have different mechanism of the turn-on characteristics. The flat band shift changes obviously and differently in the AC analysis, which results in contrast of peak shift of Miller capacitor C gd for n-type TFETs with donor-like and acceptor-like ITs.

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Jiang, Z., Zhuang, Y., Li, C., Wang, P., & Liu, Y. (2015). Impact of interface traps on direct and alternating current in tunneling field-effect transistors. Journal of Electrical and Computer Engineering, 2015. https://doi.org/10.1155/2015/630178

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