A Multi-Scale Simulation Study of the Strained Si Nanowire FETs

Lee, J., Medina-Bailon, C., Berrada, S., Carrillo-Nunez, H., Sadi, T., Georgiev, V. P. , Nedjalkov, M. and Asenov, A. (2019) A Multi-Scale Simulation Study of the Strained Si Nanowire FETs. In: 2018 IEEE 13th Nanotechnology Materials & Devices Conference (NMDC 2018), Portland, OR, USA, 14-17 Oct 2018, ISBN 9781538610169 (doi:10.1109/NMDC.2018.8605884)

Lee, J., Medina-Bailon, C., Berrada, S., Carrillo-Nunez, H., Sadi, T., Georgiev, V. P. , Nedjalkov, M. and Asenov, A. (2019) A Multi-Scale Simulation Study of the Strained Si Nanowire FETs. In: 2018 IEEE 13th Nanotechnology Materials & Devices Conference (NMDC 2018), Portland, OR, USA, 14-17 Oct 2018, ISBN 9781538610169 (doi:10.1109/NMDC.2018.8605884)

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Abstract

In this work, we study 2.1nm-diameter uniaxial strained Si gate-all-around nanowire field-effect transistors, focusing on the electron mobility and the variability due to random discrete dopants (RDDs). Firstly, we extract the electron effective masses under various strains from Density Functional Theory (DFT) simulations. Secondly, we present the impact of the strain on the electron mobility in the Si nanowire using the Kubo-Greenwood formalism with a set of multi-subband phonon, surface roughness, and ionized impurity scattering mechanisms. Finally, we perform quantum transport simulations to investigate the effect of RDD on the threshold voltage and ON-state current variation.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Carrillo-Nunez, Dr Hamilton and Sadi, Dr Toufik and Lee, Jaehyun and Georgiev, Dr Vihar and Asenov, Professor Asen and Berrada, Dr Salim and Medina Bailon, Miss Cristina
Authors: Lee, J., Medina-Bailon, C., Berrada, S., Carrillo-Nunez, H., Sadi, T., Georgiev, V. P., Nedjalkov, M., and Asenov, A.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISSN:2378-377X
ISBN:9781538610169
Published Online:10 January 2019
Copyright Holders:Copyright © 2018 IEEE
First Published:First published in 2018 IEEE 13th Nanotechnology Materials and Devices Conference (NMDC)
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
703701SUPERAID7Asen AsenovEuropean Commission (EC)688101ENG - ENGINEERING ELECTRONICS & NANO ENG
427901Integrated self-pumped optical frequency conversion and generation in semiconductor waveguidesDavid HutchingsEngineering and Physical Sciences Research Council (EPSRC)EP/E009972/1ENG - ENGINEERING ELECTRONICS & NANO ENG
3023770Quantum Simulator for Entangled Electronics (QSEE)Vihar GeorgievEngineering and Physical Sciences Research Council (EPSRC)EP/S001131/1ENG - Electronics & Nanoscale Engineering