Patent ID: 9324729
Filing Date: 2016-04-26
CPC Classification: H01L

Claim Text:
1. A non-volatile memory device comprising: a plurality of electrodes arranged side by side in a first direction; at least one semiconductor layer extending into the electrodes in the first direction; conductive layers provided between each of the electrodes and the semiconductor layer, the conductive layers being separated from each other in the first direction; a first insulating film extending between the conductive layers and the semiconductor layer in the first direction along the semiconductor layer; and a second insulating film provided between each of the electrodes and the conductive layers, the conductive layers becoming smaller in a thickness in a direction perpendicular to the first direction as the conductive layers are closer to an end of each of the conductive layers in the first direction or a direction opposite to the first direction, and having a convex shape in a direction from the semiconductor layer toward each of the electrodes, the second insulating film including a first film in contact with the conductive layers, and a second film provided between each of the electrodes and the first film, and a dielectric constant of the first film being higher than a dielectric constant of the second film.