Patent ID: 9691981
Date: 2017-06-27
CPC Classifications: H01L

Claim:
1. A method of forming a memory cell, comprising: forming a plurality of stack structures in a length direction parallel to one another, and separated from each other in a first direction perpendicular to the length direction, wherein each one of the plurality of stack structures comprises: forming a programmable material in plural U-shaped segments, each U-shaped segment extending in the length direction and formed on, and contacting, the plural segments of dielectric material and the second electrode material, of the plural select device stacks, wherein each of the plural U-shaped segments of the programmable material includes a trench extending in the length direction, the trench including a bottom and sidewalls; and forming a third electrode material formed in plural segments, each third electrode segment extending in the length direction, and each third electrode segment filling the trench of each of the plural U-shaped segments of the programmable material by contacting the bottom and side walls of the trench.