Full metadata
Precise electrical manipulation of nanoscale defects such as vacancy nano-filaments is highly desired for the multi-level control of ReRAM. In this paper we present a systematic investigation on the pulse-train operation scheme for reliable multi-level control of conductive filament evolution. By applying the pulse-train scheme to a 3 bit per cell HfO2 ReRAM, the relative standard deviations of resistance levels are improved up to 80% compared to the single-pulse scheme. The observed exponential relationship between the saturated resistance and the pulse amplitude provides evidence for the gap-formation model of the filament-rupture process.
- Zhao, L. (Author)
- Chen, H.-Y. (Author)
- Wu, S.-C (Author)
- Jiang, Z. (Author)
- Yu, Shimeng (Author)
- Hou, T.-H. (Author)
- Wong, H.-S. Philip (Author)
- Nishi, Y. (Author)
- Ira A. Fulton Schools of Engineering (Contributor)
Zhao et al. Multi-level control of conductive nano-filament evolution in HfO2 ReRAM by pulse-train operations. Nanoscale 2014, 6, 5698-5702 DOI: 10.1039/c4nr00500g
- 2014-06-26 05:20:50
- 2021-12-07 11:07:58
- 1 year 3 months ago