Patent ID: 7868311
Filing Date: 2011-01-11
Classification: G11C,H01L

Abstract:
1. A phase change memory element, comprising; a substrate; a plurality of rectangle-shaped dielectric patterns formed on the substrate and parallel with each other; a plurality of electric conductive patterns partially covering a first sidewall and the top surface of the rectangle-shaped dielectric pattern and the substrate to expose a part of the first sidewall and a second sidewall of the rectangle-shaped dielectric pattern, wherein the electric conductive patterns covering the same rectangle-shaped dielectric pattern are apart from each other; a phase change spacer formed on the substrate and directly in contact with the exposed first and second sidewalls of the rectangle-shaped dielectric patterns, wherein the two adjacent electric conductive patterns covering the same rectangle-shaped dielectric pattern are electrically connected by the phase change spacer; and a dielectric layer formed on the substrate, wherein a contact hole passes through the dielectric layer exposing the top surface of the patterned electric conductive layer.