Switching device having a non-linear element

摘要

A switching device includes a substrate; a first electrode formed over the substrate; a second electrode formed over the first electrode; a switching medium disposed between the first and second electrode; and a nonlinear element disposed between the first and second electrodes and electrically coupled in series to the first electrode and the switching medium. The nonlinear element is configured to change from a first resistance state to a second resistance state on application of a voltage greater than a threshold.

主权项

1. A method for a semiconductor device having a plurality of memory devices formed between intersections of a first plurality of electrodes and a second plurality of electrodes, the method comprising:
applying a read threshold voltage across a first electrode from the first plurality of electrodes and a second electrode from the second plurality of electrodes, to thereby change a resistance state of a non-linear element in a first memory device that is coupled to the first electrode and the second electrode, from a high resistance state to a low resistance state, wherein the read threshold voltage is greater than a threshold voltage associated with the non-linear element, and wherein the read threshold voltage is less than a program threshold voltage associated with a first memory cell in the first memory device; applying a read voltage across the first electrode and the second electrode to thereby promote a first current flow through the first memory device, wherein the read voltage:
is applied while the resistance state of the non-linear element is the low resistance state,is greater than a hold voltage associated with the non-linear element, andis less than the read threshold voltage; and determining a resistance state associated with the first memory cell of the first memory device in response to the first current flow.