Tunnel FETs for low power electronics

  • Anne Vandooren
  • , Alireza Alian
  • , Anne Verhulst
  • , Jacopo Franco
  • , Rita Rooyackers
  • , Quentin Smets
  • , Devin Verreck
  • , Niamh Waldron
  • , Dan Mocuta
  • , Nadine Collaert

Research output: Chapter in Book/Report/Conference proceedingsChapterpeer-review

Abstract

We report on Tunnel Field-Effect Transistors for low power electronics. Thanks to their potential to reach sub-60mV/dec subthreshold slope, these devices are very attractive for use in circuits with sub-0.5V supply voltage. However, proper device design as well as material choice is not obvious and many implementations have shown larger slope than expected, due to parasitic trap-assisted tunneling conduction. We review work done at imec on tunnelFETs. Initial work was based on vertical nanowire structures using goup-IV semiconductor materials. More recently, implementation of TunnelFETS on III-V materials using a Zn-diffusion approach for source doping was demonstrated with an attractive slope below 60mV/dec. Trap-assisted tunneling is extracted from the devices characteristics based on the activation energy of different conduction mechanisms present in the devices.

Original languageEnglish
Title of host publication2016 SOI-3D-Subthreshold Microelectronics Technology Unified Conference, S3S 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509043903
DOIs
Publication statusPublished - 2016
Externally publishedYes
Event2016 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference, S3S 2016 - Burlingame, United States
Duration: 10 Oct 201613 Oct 2016

Publication series

Name2016 SOI-3D-Subthreshold Microelectronics Technology Unified Conference, S3S 2016

Conference

Conference2016 IEEE SOI-3D-Subthreshold Microelectronics Technology Unified Conference, S3S 2016
Country/TerritoryUnited States
CityBurlingame
Period10/10/1613/10/16

Keywords

  • steep-slope devices
  • trap-assisted tunneling
  • TunnelFET
  • vertical nanowires
  • Zn-diffused source

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