Atomic Layer Deposited SiOX-Based Resistive Switching Memory for Multi-Level Cell Storage

Yewon Lee, Jiwoong Shin, Giyeong Nam, Daewon Chung, Sungjoon Kim, Joonhyeon Jeon, Sungjun Kim

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

Herein, stable resistive switching characteristics are demonstrated in an atomic-layer-deposited SiOX-based resistive memory device. The thickness and chemical properties of the Pt/SiOX/TaN stack are verified by transmission electron microscopy (TEM) and X-ray photoemission spectroscopy (XPS). It is demonstrated that much better resistive switching is obtained using a negative set and positive reset compared to the opposite polarity. In addition, multi-level switching is demonstrated by changing the compliance current (CC) and the reset stop voltage, and potentiation and depression are emulated by applying pulses to achieve a synaptic device. Finally, a pulse endurance of 10,000 cycles and a retention time of 5000 s are confirmed by modulating the pulse input and reading voltage, respectively.

Original languageEnglish
Article number1370
JournalMetals
Volume12
Issue number8
DOIs
StatePublished - Aug 2022

Keywords

  • memristor
  • resistive switching
  • silicon oxide
  • synaptic devices

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