Patent ID: 8691622
Filing Date: 2014-04-08
Classification: H01L

Abstract:
1. A method of forming a memory cell, comprising: forming programmable material within an opening in dielectric material over an elevationally inner conductive electrode of the memory cell; forming conductive electrode material over the dielectric material and within the opening, the programmable material within the opening having an elevationally outer edge surface facing laterally inward into and away from an elevationally outermost sidewall surface of the opening and which angles elevationally and laterally inward relative to an elevationally innermost sidewall surface of the opening, the conductive electrode material being formed to cover over the angling surface of the programmable material within the opening; and removing the conductive electrode material elevationally inward at least to an elevationally outermost surface of the dielectric material and to leave the conductive electrode material covering over the angling surface of the programmable material within the opening, the conductive electrode material comprising an elevationally outer conductive electrode of the memory cell.