Abstract
Kirchhoff’s law was used to examine the electrical specifications of selectiondiodes, which are essential for suppressing the read interference problemsin nano-scale resistive switching cross bar arrays with a high block density.The diode in the cross bar array with a 100 Mb block density should have areverse/forward resistance ratio of > 108, and a forwardcurrent density of > 105 A cm − 2 for stable reading and writing operation. Whilst normal circuitsimulators are heavily overloaded when the number of cells (m) connected to one bit and word line is larger (), which is the desired range for high density cross bar arrays, the present model canprovide a simple simulation. The validity of this new method was confirmed by acomparison with the previously reported method based on a voltage estimation.
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