Patent ID: 9153577
Filing Date: 2015-10-06
Classification: H01L

Abstract:
1. A method of fabricating a nonvolatile memory device, the method comprising: sequentially stacking a first interlayer insulating film, a first sacrificial film, a second interlayer insulating film, and a second sacrificial film on a semiconductor substrate; forming a first penetrating portion, which exposes a region of a top surface of the semiconductor substrate, by etching the first and second interlayer insulating films and the first and second sacrificial films; forming an epitaxial layer on the exposed region of the top surface of the semiconductor substrate in the first penetrating portion by epitaxial growth; forming a first electrode, which contacts a resistance change film and the epitaxial layer, in the first penetrating portion; exposing regions of side surfaces of the epitaxial layer by removing the first sacrificial film; forming an insulating film inside the exposed regions of the side surfaces of the epitaxial layer; and forming a second electrode on the exposed regions of the side surfaces of the epitaxial layer.