Patent ID: 8946073
Filing Date: 2015-02-03
Classification: H01L

Abstract:
1. A method for fabricating a phase change memory cell, the method comprising: forming a bottom electrode; depositing a first non-conductive layer above the bottom electrode; defining a first well in the first non-conductive layer that is positioned directly above the bottom electrode; lining a first electrically conductive liner along at least one wall of the first well such that the first electrically conductive liner partially fills the first well and is in electrical contact with the bottom electrode; depositing a phase change material in the first well such that the phase change material is in electrical contact with the first electrically conductive liner; and forming a top electrode; and wherein the first electrically conductive liner is in physical contact with both the bottom electrode and the top electrode; and wherein the phase change material is in physical contact with both the bottom electrode and the top electrode.