Importance

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Abstract

According to one embodiment, a driving method of a semiconductor memory device, the semiconductor memory device has a stacked body, in which a first electrode film, a second electrode film, a third electrode film are stacked in this order via insulating films, a first semiconductor pillar extending in a stacking direction of the first electrode film, the second electrode film, and the third electrode film and provided in the stacked body, and a memory film. The driving method comprises applying a first voltage to the third electrode film, the first voltage being lower than a second voltage applied to the first electrode film, in case applying a program voltage to the second electrode film, the program voltage to inject charges from the first semiconductor pillar to a portion of the memory film located between the first semiconductor pillar and the second electrode film.

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First Claim