Comparison of Si <100> and <110> crystal orientation nanowire transistor reliability using Poisson–Schrödinger and classical simulations

Gerrer, L., Georgiev, V. , Amoroso, S.M., Towie, E. and Asenov, A. (2015) Comparison of Si <100> and <110> crystal orientation nanowire transistor reliability using Poisson–Schrödinger and classical simulations. Microelectronics Reliability, 55(9-10), pp. 1307-1312. (doi: 10.1016/j.microrel.2015.06.094)

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Abstract

In this paper we perform trap sensitivity simulation analysis of square nanowire transistors (NWTs), comparing Poisson–Schrödinger (PS) and classical solutions. Both approaches result in very different electrostatic behaviour due to strong quantum confinement effects in ultra-scaled NWTs such as the Si NWTs presented in this work. Statistical distributions of traps are investigated, modelling the steady state impact of Random Telegraph Noise and Bias Temperature Instabilities for two crystal orientations. Statistical simulations are performed to evaluate the reliability impact on threshold voltage and ON current, emphasising the importance of both confinement and trap distribution details for the proper assessment of reliability in nanowire transistors.

Item Type:Articles
Status:Published
Refereed:No
Glasgow Author(s) Enlighten ID:Towie, Dr Ewan and Gerrer, Dr Louis and Amoroso, Dr Salvatore and Asenov, Professor Asen and Georgiev, Dr Vihar
Authors: Gerrer, L., Georgiev, V., Amoroso, S.M., Towie, E., and Asenov, A.
Subjects:Q Science > Q Science (General)
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
Research Group:Device Modelling Group
Journal Name:Microelectronics Reliability
Publisher:Elsevier
ISSN:0026-2714
ISSN (Online):1872-941X

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
634171Time-Dependent Variability: A test-proven modelling approach for systems verification and power consumption minimizationAsen AsenovEngineering & Physical Sciences Research Council (EPSRC)EP/L010585/1ENG - ENGINEERING ELECTRONICS & NANO ENG