Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study

A comprehensive study of Schottky barrier MOSFET (SBMOSFET) scaling issue is performed to determine the role of wafer orientation and structural parameters on the performance of this device within Non-equilibrium Green's Function formalism. Quantum confinement increases the effective Schott...

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Main Authors: Z. Ahangari, M. Fathipour
Format: Article
Language:English
Published: Nanoscience and Nanotechnology Research Center, University of Kashan 2012-12-01
Series:Journal of Nanostructures
Subjects:
Online Access:http://jns.kashanu.ac.ir/article_5420_9e9d3bd5833c7e84bb8c8f51338d52f5.pdf
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author Z. Ahangari
M. Fathipour
author_facet Z. Ahangari
M. Fathipour
author_sort Z. Ahangari
collection DOAJ
description A comprehensive study of Schottky barrier MOSFET (SBMOSFET) scaling issue is performed to determine the role of wafer orientation and structural parameters on the performance of this device within Non-equilibrium Green's Function formalism. Quantum confinement increases the effective Schottky barrier height (SBH). (100) orientation provides lower effective Schottky barrier height in comparison with (110) and (111) wafers. As the channel length of ultra thin body SBMOSFET scales down to nanoscale regime, especially for high effective SBHs, quantum confinement is created along the channel and current propagates through discrete resonance states. We have studied the possibility of resonant tunneling in SBMOSFET. Resonant tunneling for  (110) and (111) orientations appear at higher gate voltages.
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spelling doaj.art-d50081b562f045f59ad31769ecf25b802022-12-21T23:22:49ZengNanoscience and Nanotechnology Research Center, University of KashanJournal of Nanostructures2251-78712251-788X2012-12-012447748310.7508/jns.2012.04.0105420Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical StudyZ. Ahangari0M. Fathipour1Department of Electrical Engineering, Science and Research Branch, Islamic Azad University, Tehran, IranSchool of Electrical and Computer Engineering University of Tehran, TehranA comprehensive study of Schottky barrier MOSFET (SBMOSFET) scaling issue is performed to determine the role of wafer orientation and structural parameters on the performance of this device within Non-equilibrium Green's Function formalism. Quantum confinement increases the effective Schottky barrier height (SBH). (100) orientation provides lower effective Schottky barrier height in comparison with (110) and (111) wafers. As the channel length of ultra thin body SBMOSFET scales down to nanoscale regime, especially for high effective SBHs, quantum confinement is created along the channel and current propagates through discrete resonance states. We have studied the possibility of resonant tunneling in SBMOSFET. Resonant tunneling for  (110) and (111) orientations appear at higher gate voltages.http://jns.kashanu.ac.ir/article_5420_9e9d3bd5833c7e84bb8c8f51338d52f5.pdfNanoscale SchottkyNon-equilibrium Green'sFunction (NEGF) formalismQuantum TransportResonant Tunneling
spellingShingle Z. Ahangari
M. Fathipour
Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
Journal of Nanostructures
Nanoscale Schottky
Non-equilibrium Green's
Function (NEGF) formalism
Quantum Transport
Resonant Tunneling
title Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
title_full Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
title_fullStr Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
title_full_unstemmed Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
title_short Impact of Silicon Wafer Orientation on the Performance of Metal Source/Drain MOSFET in Nanoscale Regime: a Numerical Study
title_sort impact of silicon wafer orientation on the performance of metal source drain mosfet in nanoscale regime a numerical study
topic Nanoscale Schottky
Non-equilibrium Green's
Function (NEGF) formalism
Quantum Transport
Resonant Tunneling
url http://jns.kashanu.ac.ir/article_5420_9e9d3bd5833c7e84bb8c8f51338d52f5.pdf
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