Electrically active defects in Al2O3-InGaAs MOS stacks at cryogenic temperatures

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

Abstract

The effects of defects in In0.47Ga0.53As/Al2O3/Ni metal-oxide-semiconductor (MOS) stacks at cryogenic temperatures are investigated. The MOS stacks exhibit a hysteresis in the capacitance-voltage (CV) curve, both at room temperature and at 100K, indicating the presence of effective charge capture/emission dynamics in the oxide even at cryogenic temperatures. Border traps (BTs) in the Al2O3 close to the In0.47Ga0.53As/Al2O3 interface are recognized as the best candidate for explaining the experimental CV. The hysteresis shape and its temperature dependence are used to profile the oxide defects' properties, which allow correctly predicting the MOS stacks CV and conductance-voltage (GV) frequency dispersions and gaining insights on the hysteresis dynamics.

Original languageEnglish
Title of host publication2023 IEEE International Integrated Reliability Workshop, IIRW 2023
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350327274
DOIs
Publication statusPublished - 2023
Event2023 IEEE International Integrated Reliability Workshop, IIRW 2023 - South Lake Tahoe, United States
Duration: 8 Oct 202312 Oct 2023

Publication series

NameIEEE International Integrated Reliability Workshop Final Report
ISSN (Print)1930-8841
ISSN (Electronic)2374-8036

Conference

Conference2023 IEEE International Integrated Reliability Workshop, IIRW 2023
Country/TerritoryUnited States
CitySouth Lake Tahoe
Period8/10/2312/10/23

Keywords

  • AlO
  • capacitance
  • cryogenic
  • hysteresis
  • InGaAs

Fingerprint

Dive into the research topics of 'Electrically active defects in Al2O3-InGaAs MOS stacks at cryogenic temperatures'. Together they form a unique fingerprint.

Cite this