Simple model for the switching I-V characteristic in electroformed MIM structures

A simple analytical model for the switching I-V characteristic in electroformed metal-insulator-metal structures is reported. The transitions from the OFF state (high resistance) to the ON state (low resistance) and back are modeled using an equivalent electrical circuit model consisting in two opposite-biased diodes with a series resistance. It is shown how the I-V characteristics are achieved by means of an appropriate change of model parameters.