Patent ID: 9006793
Filing Date: 2015-04-14
Classification: G11C,H01L

Abstract:
1. A non-volatile memory cell, comprising: a columnar electrode disposed perpendicular to a main surface of a substrate; a first conductive layer disposed parallel to the main surface of the substrate; a semiconductor layer disposed in contact with said first conductive layer in a stacking direction; a second conductive layer disposed in contact with said semiconductor layer in the stacking direction; a variable resistance layer disposed between said columnar electrode and said first conductive layer, said variable resistance layer having a resistance value that reversibly changes according to an application of an electric signal; an oxide insulating layer disposed between said columnar electrode and said semiconductor layer, said oxide insulating layer comprising a same constituent element as a constituent element of said semiconductor layer; and an insulating layer disposed between said columnar electrode and said second conductive layer.