Electromechanical modeling of silicon nanowire switches: Size and boundary condition effects

Sepeedeh Shahbeigi*, Mohammad Nasr Esfahani, B. Erdem Alaca

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Understanding the operational behavior of nanoelectromechanical systems (NEMS) is the preliminary step to design functional sensors and actuators. Miniaturization is considered for further improvement in sensitivity, while the extreme surface area in NEMS devices plays a leading role in the effective performance through size dependence physical properties. Nanowire (NW) switches are one such device with significant surface effects present on the pull-in voltage. This study introduces a new approach to implement the surface effect into electromechanical behavior of NW switches based on finite element analysis. The influence of size and boundary condition on pull-in voltage is studied for silicon NWs. Results demonstrate the importance of length-to-thickness ratio as a suitable parameter to express the surface effect rather than the surface-area-to-volume ratio.

Original languageEnglish
Title of host publicationInternational Conference on Numerical Analysis and Applied Mathematics, ICNAAM 2019
EditorsTheodore E. Simos, Charalambos Tsitouras
PublisherAmerican Institute of Physics
ISBN (Electronic)9780735440258
DOIs
Publication statusPublished - 25 Nov 2020
EventInternational Conference on Numerical Analysis and Applied Mathematics 2019, ICNAAM 2019 - Rhodes, Greece
Duration: 23 Sept 201928 Sept 2019

Publication series

NameAIP Conference Proceedings
Volume2293
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Numerical Analysis and Applied Mathematics 2019, ICNAAM 2019
Country/TerritoryGreece
CityRhodes
Period23/09/1928/09/19

Bibliographical note

Publisher Copyright:
© 2020 American Institute of Physics Inc.. All rights reserved.

Keywords

  • Miniaturization
  • Nanoelectromechanical systems
  • Pull-in voltage
  • Silicon nanowire
  • Surface effect

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