Hold Voltage Behavior in NbOxBased Threshold Switches for Selector Technology and Neuromorphic Computing Applications

  • Hyun Wook Kim
  • , Sol Jin
  • , Heebum Kang
  • , Eun Ryeong Hong
  • , Jiyong Woo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

We study the insulator-metal transition characteristics of NbOx-based threshold switches to identify how the hold voltage (Vhold), which is a key knob for various applications, can be tuned towards low or high values. Since the hold behavior is rooted in threshold switching, we first investigate the electrical characteristics of the switches with respect to scaling of the NbOx film thickness and cell diameter. We then reveal that the hold properties are mainly related to the stability of the locally transformed metallic phase in the NbOx. Increasing the compliance current not only allows a geometrically thicker and denser phase to be formed, but also elevating the temperature makes the phase thermodynamically favorable, thereby lowering the Vhold.

Original languageEnglish
Title of host publication6th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages207-209
Number of pages3
ISBN (Electronic)9781665421775
DOIs
StatePublished - 2022
Event6th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2022 - Virtual, Online, Japan
Duration: 6 Mar 20229 Mar 2022

Publication series

Name6th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2022

Conference

Conference6th IEEE Electron Devices Technology and Manufacturing Conference, EDTM 2022
Country/TerritoryJapan
CityVirtual, Online
Period6/03/229/03/22

Keywords

  • hold behavior
  • NbO
  • Threshold switching

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