SEMICONDUCTOR MEMORY DEVICE AND METHOD FOR MANUFACTURING THE SAME
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United States of America Patent
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app pub date -
Sep 4, 2015
filing date -
Jul 13, 2015
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Abstract
According to one embodiment, a semiconductor memory device includes a stacked body including a plurality of electrode films and a plurality of insulating films, the plurality of electrode films and the plurality of insulating films being alternately stacked on each other, a semiconductor pillar extending in a stacking direction of the stacked body, and a charge storage film provided between the electrode films and the semiconductor pillar and extending linearly in the stacking direction of the stacked body. A stacking-direction width of an edge portion of the electrode films on side of the semiconductor pillar is shorter than a stacking-direction width of the electrode films other than the edge portion of the electrode films.
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