Impact of self-complementary resistance switch induced by over-Reset energy on the memory reliability of hafnium oxide based resistive random access memory

Heng Yuan Lee, Yu Sheng Chen, Pang Shiu Chen*, Chen Han Tsai, Pei Yi Gu, Tai Yuan Wu, Kan Hseuh Tsai, Shakh Ziaur Rahaman, Frederick Chen, Ming Jing Tsai, Ming Hung Lee, Tzu Kun Ku

*此作品的通信作者

    研究成果: 雜誌貢獻期刊論文同行評審

    3 引文 斯高帕斯(Scopus)

    摘要

    The degradation behavior of the Ti/HfOxbipolar resistive random access memory (RRAM) during endurance cycles, and the operational parameters, which induce the endurance failure, are studied through the two proposed stressing methods. The over-RESET energy is considered to be the key electrical parameter to induce endurance failure in the memory device. When the device suffers the over-RESET energy, a gradually reduced memory window is observed associated with endurance cycles, and the overall degradation will include two stages. The first stage can be explained by the worn filament model and is mainly due to imbalance energy between SET and RESET process. The occurrence of unusual resistance-voltage (R-V) patterns at positive and negative voltage seep in the memory device under the second stage degradation demonstrates the existence of complementary resistive switching (CRS) in the single Ti/HfO xbipolar RRAM. After analyzing the operation conditions to activate the self-CRS in memory device with one transistor-one resistor (1T-1R) configuration, the mechanism about the second stage degradation in the RRAM originated from over-RESET energy is also discussed. A mechanism based on the worn filament model and the induction of CRS is proposed to explain the endurance failure induced by over-RESET in the Ti/HfOxRRAM with 1T-1R configuration. With an appropriate RESET energy, a robust reliability for endurance cycles is expected.

    原文英語
    文章編號08LE01
    期刊Japanese Journal of Applied Physics
    53
    發行號8 SPEC. ISSUE 1
    DOIs
    出版狀態已發佈 - 2014 八月

    ASJC Scopus subject areas

    • 工程 (全部)
    • 物理與天文學 (全部)

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