MEMORY DEVICE AND OPERATING METHOD THEREOF
    62.
    发明公开

    公开(公告)号:US20230223082A1

    公开(公告)日:2023-07-13

    申请号:US17955733

    申请日:2022-09-29

    IPC分类号: G11C16/08 G11C16/16 G11C29/12

    摘要: An operating method of a memory device includes: acquiring an address of a first bad word line, the first bad word line included in a plurality of word lines of the memory device; detecting whether word lines adjacent to the first bad word line are bad based on the address of the first bad word line, the word lines adjacent to the first bad word line included in the plurality of word lines; designating a first word line among the word lines adjacent to the first bad word line as a prohibited word line, the first word line being detected as a second bad word line; and sending first data via a second word line among the word lines adjacent to the first bad word line, the second word line being detected as a normal word line.

    NAND FLASH MEMORY DEVICE CAPABLE OF SELECTIVELY ERASING ONE FLASH MEMORY CELL AND OPERATION METHOD THEREOF

    公开(公告)号:US20230128347A1

    公开(公告)日:2023-04-27

    申请号:US17715809

    申请日:2022-04-07

    发明人: Honam YOO Jong-Ho LEE

    摘要: A flash memory device includes a cell array and a control circuit. The cell array includes a first NAND string having first flash memory cells having control gates respectively connected to word lines, and a first bit line selection switch connecting the first flash memory cells to a first bit line according to a control of a first string selection line. The control circuit controls a first erase operation for erasing a selected flash memory cell. The control circuit controls a voltage difference between the first bit line and the first string selection line to have a first value for generating gate induced drain leakage (GIDL) at the first bit line selection switch, and controls a voltage of a control gate of the selected flash memory cell and a voltage of a control gate of an unselected flash memory cell to be different from each other.