One-Dimensional Multi-Subband Monte Carlo Simulation of Charge Transport in Si Nanowire Transistors

Sadi, T., Towie, E., Nedjalkov, M., Riddet, C., Alexander, C., Wang, L., Georgiev, V. , Brown, A., Millar, C. and Asenov, A. (2016) One-Dimensional Multi-Subband Monte Carlo Simulation of Charge Transport in Si Nanowire Transistors. In: SISPAD 2016: International Conference on Simulation of Semiconductor Processes and Devices, Nuremberg, Germany, 6-8 Sept 2016, pp. 23-26. ISBN 9781509008186 (doi: 10.1109/SISPAD.2016.7605139)

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Abstract

In this paper, we employ a newly-developed one-dimensional multi-subband Monte Carlo (1DMSMC) simulation module to study electron transport in nanowire structures. The 1DMSMC simulation module is integrated into the GSS TCAD simulator GARAND coupling a MC electron trajectory simulation with a 3D Poisson-2D Schrödinger solver, and accounting for the modified acoustic phonon, optical phonon, and surface roughness scattering mechanisms. We apply the simulator to investigate the effect of the overlap factor, scattering mechanisms, material and geometrical properties on the mobility in silicon nanowire field-effect transistors (NWTs). This paper emphasizes the importance of using 1D models that include correctly quantum confinement and allow for a reliable prediction of the performance of NWTs at the scaling limits. Our simulator is a valuable tool for providing optimal designs for ultra-scaled NWTs, in terms of performance and reliability.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Towie, Dr Ewan and Sadi, Dr Toufik and Wang, Dr Liping and Georgiev, Dr Vihar and Asenov, Professor Asen and Riddet, Mr Craig
Authors: Sadi, T., Towie, E., Nedjalkov, M., Riddet, C., Alexander, C., Wang, L., Georgiev, V., Brown, A., Millar, C., and Asenov, A.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISSN:1946-1577
ISBN:9781509008186
Copyright Holders:Copyright © 2016 IEEE
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
703701SUPERAID7Asen AsenovEuropean Commission (EC)688101ENG - ENGINEERING ELECTRONICS & NANO ENG