Patent ID: 8198670

Claim:
A nonvolatile semiconductor memory device comprising: a multilayer body with a plurality of insulating films and electrode films alternately stacked therein; a plurality of select gate electrodes provided on the multilayer body, extending in one direction orthogonal to a stacking direction of the multilayer body, and spaced from each other; semiconductor pillars penetrating through the multilayer body and the select gate electrodes; and a charge storage film provided between one of the electrode films and one of the semiconductor pillars, two neighboring ones of the semiconductor pillars penetrating through a common one of the select gate electrodes and penetrating through mutually different positions in a width direction of the select gate electrodes, and a straight line being orthogonal to the stacking direction and connecting between central axes of two of the semiconductor pillars located at shortest distance, the straight line being sloped with respect to both the one direction and another direction orthogonal to the stacking direction and the one direction.