Patent ID: 9646989
Date: 2017-05-09
CPC Classifications: H01L

Claim:
1. A semiconductor device comprising: a substrate; a stacked body provided above the substrate, the stacked body including a plurality of electrode layers stacked with an insulator, the electrode layers having a plurality of end parts formed in a staircase shape, the stacked body including a first stacked part and a second stacked part including the end parts; a first columnar part including a first semiconductor body extending in a stacking direction in the first stacked part, and a stacked film provided between the first semiconductor body and one of the electrode layers, the stacked film including a charge storage part; an insulating layer provided above the second stacked part; a plurality of contact vias extending in the stacking direction in the insulating layer, and being in contact with the end parts of the electrode layers; and a plurality of second columnar parts extending in the stacking direction in the second stacked part, and including a plurality of second semiconductor bodies being different in length in the stacking direction.