NONVOLATILE MEMORY DEVICE HAVING CELL-OVER-PERIPHERY (COP) STRUCTURE WITH ADDRESS RE-MAPPING

    公开(公告)号:US20210096967A1

    公开(公告)日:2021-04-01

    申请号:US16865948

    申请日:2020-05-04

    Abstract: A nonvolatile memory device includes a first semiconductor layer, a second semiconductor layer and a control circuit. The memory cell array includes a first vertical structure on the first upper substrate and a second vertical structure on the second upper substrate, the first vertical structure includes first sub-blocks and the second vertical structure includes second sub-blocks. The second semiconductor layer includes a lower substrate that includes address decoders and page buffer circuits. The first vertical structure includes first via areas in which one or more through-hole vias are provided, through-hole vias pass through the first vertical structure. The first sub-blocks are arranged among the first via areas and the second sub-blocks are arranged among the second via areas. The control circuit groups the memory blocks into a plurality of groups based on whether the memory blocks is close to the first via areas and performs address re-mapping.

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