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Memory window engineering of Ta2O5-x oxide-based resistive switches via incorporation of various insulating frames.


ABSTRACT: Three-dimensional (3D) stackable memory frames, including nano-scaled crossbar arrays, are one of the most reliable building blocks to meet the demand of high-density non-volatile memory electronics. However, their utilization has the disadvantage of introducing issues related to sneak paths, which can negatively impact device performance. We address the enhancement of complementary resistive switching (CRS) features via the incorporation of insulating frames as a generic approach to extend their use; here, a Pt/Ta2O5-x/Ta/Ta2O5-x/Pt frame is chosen as the basic CRS cell. The incorporation of Ta/Ta2O5-x/Ta or Pt/amorphous TaN/Pt insulting frames into the basic CRS cell ensures the appreciably advanced memory features of CRS cells including higher on/off ratios, improved read margins, and increased selectivity without reliability degradation. Experimental observations identified that a suitable insulating frame is crucial for adjusting the abrupt reset events of the switching element, thereby facilitating the enhanced electrical characteristics of CRS cells that are suitable for practical applications.

SUBMITTER: Lee AR 

PROVIDER: S-EPMC4958974 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature

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Memory window engineering of Ta2O5-x oxide-based resistive switches via incorporation of various insulating frames.

Lee Ah Rahm AR   Baek Gwang Ho GH   Kim Tae Yoon TY   Ko Won Bae WB   Yang Seung Mo SM   Kim Jongmin J   Im Hyun Sik HS   Hong Jin Pyo JP  

Scientific reports 20160725


Three-dimensional (3D) stackable memory frames, including nano-scaled crossbar arrays, are one of the most reliable building blocks to meet the demand of high-density non-volatile memory electronics. However, their utilization has the disadvantage of introducing issues related to sneak paths, which can negatively impact device performance. We address the enhancement of complementary resistive switching (CRS) features via the incorporation of insulating frames as a generic approach to extend thei  ...[more]

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