Patent ID: 7825397

Claim:
A phase change memory unit comprising: a first electrode proximate a substrate surface, the first electrode comprising a first layer comprising a first conductive material and a second layer comprising a second conductive material, the first electrode having a first end and an opposite second end, the second end at least partially non-orthogonal to the substrate; a second electrode proximate the substrate surface spaced from the first electrode, the second electrode comprising the second conductive material and having a first end and a second end, the second end at least partially non-orthogonal to the substrate surface; a gap of no more than 100 nm between the first electrode and the second electrode, the gap defined by the second ends of the electrodes; a bridge comprising a phase change material contacting the first electrode, the second electrode, and present within the gap; and an insulative material adjacent at least a portion of the phase change material.