Quantitative method for estimating characteristics of conductive filament in ReRAM

A quantitative 3D conductive filament model for ReRAM is developed based on a hopping percolation theory without any fitting parameter. According to the theory, the dimensions and oxygen vacancy concentration of the conductive filament are functions of the resistance distribution. We perform Monte C...

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Bibliographic Details
Main Authors: Zhiqiang Wei, Yasuhara, Ryutaro, Katayama, Koji, Mikawa, Takumi, Ninomiya, Takeki, Muraoka, Shunsaku
Format: Conference Proceeding
Language:English
Subjects:
Conductivity
Electrodes
filament
percolation
Probability
ReRAM
Resistance
Solid modeling
Switches
Three-dimensional displays
Online Access:Request full text
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Summary:A quantitative 3D conductive filament model for ReRAM is developed based on a hopping percolation theory without any fitting parameter. According to the theory, the dimensions and oxygen vacancy concentration of the conductive filament are functions of the resistance distribution. We perform Monte Carlo simulations for calculating the resistance distribution and derive the physical parameters for quantitative simulation based on the relation between resistivity and the oxygen concentration of TaO x . The dimensions and oxygen vacancy concentration are estimated by simulating the resistance distribution. The estimated conductive filament diameters are corroborated by EBAC and TEM observations.
ISSN:0271-4302
2158-1525
DOI:10.1109/ISCAS.2014.6865267