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arXiv · 2103.13022

beta-Ga2O3 Double Gate Junctionless FET with an Efficient Volume Depletion Region

Dariush Madadi·Ali Asghar Orouji
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Abstract

This paper presents a new \b{eta}-Ga2O3 junctionless double gate Metal-Oxide-Field-Semiconductor-Effect-Transistor (\b{eta}DG-JL-FET) that a P+ packet embedded in the oxide layer (PO-\b{eta}DG-JL-FET) for high-voltage applications. Our goal is to achieve an efficient volume depletion region by placing a P+ layer of silicon. We show that the proposed structure has a subthreshold swing ~ 64 mV/decade and it suppressed the band to band tunneling (BTBT) phenomenon. Also, the PO-\b{eta}DG-JL-FET structure has a high Ion/Ioff ~ 1.3e15. The embedded layer reduces the off-current (IOFF) by ~ 10-4, while the on-current (ION) reduces slightly. Besides, we show that the proposed structure has acceptable Ioff value in a range of gate work functions which help us to the optimization of designs in terms of area, power gain, and leakage current. The leakage current of the proposed structure is ~ 7e-17 A in 400 K temperature. Furthermore, the fabrication process steps of the proposed structure will be investigated.

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Dariush Madadi, Ali Asghar Orouji. 2021-03-24. beta-Ga2O3 Double Gate Junctionless FET with an Efficient Volume Depletion Region. https://doi.org/10.1016/j.physleta.2021.127575

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