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Scaling capability improvement of silicon-on-void (SOV) MOSFET

Yu Tian, Weihai Bu, Dake Wu, Xia An, Ru Huang, Yangyuan Wang

Open publisher page 11 citations

Abstract

In this paper, the scaling capability improvement of silicon-on-void (SOV) MOSFET is comprehensively investigated. The results show that SOV MOSFET shows a significant improvement in the suppression of the short-channel effects (SCE) caused by the potential coupling between the source and drain through the buried layer. In addition, the parasitic capacitance between the source/drain and the substrate can be greatly decreased. The minimal channel length of SOV MOSFET is reduced by 27% compared with ultra-thin-body (UTB) SOI MOSFET. Most of all, the limitation of silicon film thickness of SOV MOSFET can be relaxed to about 50%, in comparison with SOI MOSFET. SOV MOSFET can alleviate the critical problem and further improve the immunity of SCE of UTB SOI MOSFET in the nanoscale regime. SOV MOSFET will be a good choice of device structure to put off the eventual limit in scaling down.

About this research paper

What this paper is about

In this paper, the scaling capability improvement of silicon-on-void (SOV) MOSFET is comprehensively investigated. The results show that SOV MOSFET shows a significant improvement in the suppression of the short-channel effects (SCE) caused by the potential coupling between the source and drain through the buried layer. In addition, the parasitic capacitance between the source/drain and the substrate can be greatly decreased. The minimal channel length of SOV MOSFET is reduced by 27% compared with ultra-thin-body (UTB) SOI MOSFET. Most of all, the limitation of silicon film thickness of SOV MOSFET can be relaxed to about 50%, in comparison with SOI MOSFET. SOV MOSFET can alleviate the critical problem and further improve the immunity of SCE of UTB SOI MOSFET in the nanoscale regime. SOV MOSFET will be a good choice of device structure to put off the eventual limit in scaling down.

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OpenAlex reports 11 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

In this paper, the scaling capability improvement of silicon-on-void (SOV) MOSFET is comprehensively investigated. The results show that SOV MOSFET shows a significant improvement in the suppression of the short-channel effects (SCE) caused by the potential coupling between the source and drain through the buried layer. In addition, the parasitic capacitance between the source/drain and the substrate can be greatly decreased. The minimal channel length of SOV MOSFET is reduced by 27% compared with ultra-thin-body (UTB) SOI MOSFET. Most of all, the limitation of silicon film thickness of SOV MOSFET can be relaxed to about 50%, in comparison with SOI MOSFET. SOV MOSFET can alleviate the critical problem and further improve the immunity of SCE of UTB SOI MOSFET in the nanoscale regime. SOV MOSFET will be a good choice of device structure to put off the eventual limit in scaling down.

Key concepts: MOSFET, Short-channel effect, Silicon on insulator, Scaling, Channel length modulation, Materials science, Void (composites), Capacitance

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