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Fabrication of NbO2 based IMT Selector Devices via a 300mm Based Memory Test Vehicle

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

Abstract

The demand for differentiated devices in the backend-of-line increases necessitates the need for a test vehicle that enables the integration and electrical characterization of such devices. An Insulator-Metal Transition based NbO2 device was integrated onto the NY CREATES/UAlbany memory test vehicle (MTV) utilizing a 65nm process technology to fabricate nanoscale devices with a footprint down to 120x120 nm2. NbO2, the metastable allotrope of niobium oxide, was deposited onto coupons diced out of the 300mm MTV. This occurred in an oxygen-controlled environment yielding phase-pure NbO2 after a 750 °C crystallization anneal. An endurance of at least 25x106 cycles was demonstrated with an Roff/Ron ratio above 100 and an extrapolation towards >2000 with further device scaling.

Original languageEnglish
Title of host publicationICMTS 2025 - Proceedings of the 2025 IEEE 37th International Conference on Microelectronic Test Structures, ICMTS 2025
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798331531676
DOIs
StatePublished - 2025
Event37th IEEE International Conference on Microelectronic Test Structures, ICMTS 2025 - San Antonio, United States
Duration: Mar 24 2024Mar 27 2024

Publication series

NameIEEE International Conference on Microelectronic Test Structures

Conference

Conference37th IEEE International Conference on Microelectronic Test Structures, ICMTS 2025
Country/TerritoryUnited States
CitySan Antonio
Period03/24/2403/27/24

Keywords

  • CMOS+X test vehicle
  • IMT
  • Semiconductor
  • neuromorphic computing

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