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)

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 Asenov, Professor Asen and Riddet, Mr Craig and Wang, Dr Liping and Georgiev, Professor Vihar and Sadi, Dr Toufik
• 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

Project Code	Award No	Project Name	Principal Investigator	Funder's Name	Funder Ref	Lead Dept
70370	1	SUPERAID7	Asen Asenov	European Commission (EC)	688101	ENG - ENGINEERING ELECTRONICS & NANO ENG