Patent ID: 8735965
Filing Date: 2014-05-27
Classification: H01L

Abstract:
1. A nonvolatile semiconductor memory device comprising: a substrate; an electrode layer provided above the substrate; a first insulating layer provided on the electrode layer; a stacked body provided on the insulating layer, the stacked body having a plurality of conductive layers and a plurality of insulating film alternately stacked on each other; a memory film provided on a sidewall of each of a pair of holes penetrating the stacked body in a direction of stacking the stacked body; a channel body layer provided on an inner side of the memory film in each of the pair of the holes; a channel body connecting portion formed so as to be buried in the electrode layer and provided so as to join a lower portion in the pair of the holes; and a second insulating layer provided between the channel body connecting portion and the stacked body, a film thickness of the second insulating layer being thicker than a film thickness of the first insulating layer.