Patent ID: 9595672
Date: 2017-03-14
CPC Classifications: H01L

Claim:
1. A method of forming a memory element, the method comprising: forming a first dielectric material having a top surface; forming a via within the first dielectric material; forming a first electrode having a top surface within the via; forming an insulating material element in contact with the top surface of the first electrode, wherein the top surface of the first electrode and the top surface of the first dielectric material are co-planar; forming a second electrode in contact with a top surface of the insulating material element; forming a phase change material in contact with sidewalls of the second electrode, sidewalls of the insulating material element, the top surface of the first dielectric material and the top surface of the first electrode; and etching the phase change material to remove at least a portion of the phase change material in contact with the first dielectric material, but leaving the phase change material that is in contact with the sidewalls of the second electrode, the sidewalls of the insulating material element and the top surface of the first electrode.