Semiconductor memory device
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United States of America Patent
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Sep 22, 2020
Grant Date -
N/A
app pub date -
Mar 6, 2019
filing date -
Sep 20, 2018
priority date (Note) -
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Abstract
According to one embodiment, a semiconductor memory device includes the following structure. First conductive layers are stacked in first direction and extends in second and third directions. The first conductive layers each includes a pair of first portions, and second and third portions. The first portions extend in second direction, is provided separately from each other in third direction and includes a metal. The second portion is provided between the first portions and includes silicon. The third portion is provided on at least one side of the second portion in second direction, extends in third direction, electrically connects the first portions and includes a metal. Memory pillars extend through the second portions in first direction. Contact plugs are respectively provided on the third portion of one of the first conductive layers.
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