Patent ID: 8211743

Claim:
A method of forming a non-volatile resistive oxide memory cell, comprising: forming a first conductive electrode of the memory cell as part of a substrate, the first conductive electrode having an elevationally outermost surface and opposing laterally outermost edges at the elevationally outermost surface in one planar cross section; forming programmable multi-resistive state metal oxide-comprising material over the first conductive electrode; depositing conductive material over the programmable multi-resistive state metal oxide-comprising material; forming an etch mask over the programmable multi-resistive state material, the etch mask having opposing laterally outermost edges in the one planar cross section; and forming a second conductive electrode of the memory cell which comprises the conductive material received over the programmable multi-resistive state metal oxide-comprising material, the forming of the second conductive electrode comprising etching through the conductive material using the opposing laterally outermost edges of the etch mask to form opposing laterally outermost conductive edges of said conductive material in the one planar cross section at the conclusion of said etching which are received laterally outward of the opposing laterally outermost edges of the first conductive electrode in the one planar cross section.