Patent ID: 8374033

Claim:
A nonvolatile semiconductor memory device comprising: a memory unit; and a control unit, the memory unit including: a multilayer structure including a plurality of electrode films and a plurality of inter-electrode insulating films alternately stacked in a first direction; a first semiconductor pillar piercing the multilayer structure in the first direction; a first memory layer provided between the first semiconductor pillar and each of the electrode films; a first inner insulating film provided between the first memory layer and the first semiconductor pillar; a first outer insulating film provided between the first memory layer and each of the electrode films; and a first wiring electrically connected to one end of the first semiconductor pillar, and the control unit, in an operation of performing at least one of injection of a hole into the first memory layer and extraction of an electron from the first memory layer, performing a first operation of setting the first wiring at a first potential and setting the electrode films at a second potential lower than the first potential, and then performing a second operation of setting the first wiring at a third potential and setting the electrode films at a fourth potential higher than the third potential.