Patent ID: 11957069
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 14:
15. A phase change memory cell comprising:
one or more heater elements in a first dielectric material that each are on a portion of a metal layer in a semiconductor structure;
a first layer of an improved liner material over the one or more heater elements in the first dielectric material and over one or more portions of the dielectric material adjacent to the one or more heater elements;
a first phase change material over the first layer of the improved liner material;
a second phase change material over the first phase change material, wherein the second phase change material is doped;
a third phase change material over the second phase change material;
a second layer of the improved liner material over the third phase change material; and
a top electrode contacting a top electrode over the second layer of the improved liner forming a phase change memory device.