Two-terminal memory with intrinsic rectifying characteristic

摘要

Providing for two-terminal memory having an inherent rectifying characteristic(s) is described herein. By way of example, the two-terminal memory can be a resistive switching device having one or more “on” states and an “off” state, to facilitate storage of digital information. A conductive filament can be electrically isolated from an electrode of the two-terminal memory by a thin tunneling layer, which permits a tunneling current for voltages greater in magnitude than a positive rectifying voltage or a negative rectifying voltage. The two-terminal memory cell can therefore have high resistance to small voltages, mitigating leakage currents in an array of the two-terminal memory cells. In addition, the memory cell can be conductive above a rectifying voltage, enabling reading of the memory cell in response to a suitable read bias, and erasing of the memory cell in response to a suitable negative erase bias.