A method of forming a three-dimensional, non-volatile memory array
utilizing damascene fabrication techniques is disclosed. A bottom set of
conductors is formed and a set of first pillar shaped elements of heavily
doped semiconductor material as formed thereon. A mold is formed of
insulating material having pillar shaped openings self-aligned with the
first pillar shaped elements and a second semiconductor is deposited over
the mold to form second pillar shaped elements aligned with the first
pillar shaped elements. The pillar elements formed may be further
processed by forming another mold of insulating material having trench
openings aligned with the pillar shaped elements and then filling the
trenches with conductive material to form conductors coupled to the
pillar shaped elements.