Patent ID: 8278695
Filing Date: 2012-10-02
Classification: G11C,H01L

Abstract:
1. A nonvolatile semiconductor memory device comprising: a substrate; and a plurality of memory strings arranged in a matrix shape in a row direction and a column direction, each of said plurality of memory strings comprising: wherein said first to nth electrodes of a first memory string which is one of said plurality of memory strings are shared as first to nth conductor layers spread in two dimensions between each of a second memory string adjacent to said first memory string in said column direction and a third memory string adjacent to said first memory string in said row direction; each of said first to nth electrodes and each of said plurality of third insulating films are vertically alternately stacked; edges of said first to nth electrodes and edges of said plurality of third insulating films are formed in a stepwise shape; and said plurality of memory cells are arranged in said first to nth electrodes and in said plurality of third insulating films with an array shape.