Patent ID: 9466606
Filing Date: 2016-10-11
CPC Classification: H01L

Claim Text:
1. A semiconductor storage device comprising: stacks comprising insulating films and first wires alternately stacked; a conductive part provided in the stacks, a longitudinal direction of the conductive part being a stacking direction of the insulating films and the first wires; and memory cells between the first wires and the conductive part, a plurality of the memory cells being provided with the conductive part in a cross-section in a direction perpendicular to the longitudinal direction of the conductive part, wherein a width of first side surfaces of the conductive part on which the memory cells are provided is larger at a bottom end of the conductive part than at a top end of the conductive part, the width of the first side surfaces being a width in a longitudinal direction of the first wires, and a width of second side surfaces between the first side surfaces of the conductive part is smaller at the bottom end of the conductive part than at the top end of the conductive part, the width of the second side surfaces being a width in a direction intersecting with the longitudinal direction of the conductive part and the longitudinal direction of the first wires.