Patent ID: 8664631

Claim:
A nonvolatile memory device, comprising: a substrate; a first word line interconnect layer including a plurality of first word lines extending in a first direction on the substrate; a second word line interconnect layer including a plurality of second word lines extending in the first direction on the first word line interconnect layer; a bit line interconnect layer provided between the first and second word line interconnect layers, and including a plurality of bit lines extending in a second direction that intersects the first direction; a first pillar disposed between each of the first word lines and each of the bit lines; a second pillar disposed between each of the second word lines and each of the bit lines; first charge bearing members containing a positive negative fixed charge, and provided on side faces of the first pillars; and second charge bearing members containing a positive fixed charge, and provided on side faces of the second pillars, the first pillars including: a first diode film provided with a p-type layer and an n-type layer, the p-type layer being disposed on the n-type layer; and a first variable resistance film stacked on the first diode film, the second pillars including: a second diode film provided with a p-type layer and an n-type layer, the n-type layer being disposed on the p-type layer; and a second variable resistance film stacked on the second diode film, an upper part of the first pillar having the p-type layer being narrower than a lower part of the first pillar having the n-type layer, an upper part of the second pillar having the n-type layer being narrower than a lower part of the second pillar having the p-type layer, each of the first pillars and the second pillars constituting a memory cell, the first charge bearing member being disposed on side faces of the p-type layer of the first diode film, and being not disposed on side faces of the n-type layer of the first diode film, and the second charge bearing member being disposed on side faces of the n-type layer of the second diode film, and being not disposed on side faces of the p-type layer of the second diode film.