STORAGE DEVICE INCLUDING FLASH MEMORY AND BLOCK CONTINUOUS-WRITE OPERATION METHOD THEREOF

    公开(公告)号:US20240087658A1

    公开(公告)日:2024-03-14

    申请号:US18304773

    申请日:2023-04-21

    CPC classification number: G11C16/3445 G11C16/0433 G11C16/16

    Abstract: Disclosed is a storage device which includes a first word line connected with memory cells being in a program state, a second word line connected with memory cells being an erase state, and a free word line between the first and second word lines and connected with memory cells being the erase state. Whether a block continuous-write is possible with respect to the memory cells connected with the second word line is determined by verifying the erase state of the memory cells connected with the free word line during one busy signal period. According to the present disclosure, because whether a block continuous-write is possible is determined with respect to a plurality of free pages during one busy signal period, a time taken to perform the block continuous-write operation may decrease.

    Operation method of memory device and operation method of memory system including the same

    公开(公告)号:US12176046B2

    公开(公告)日:2024-12-24

    申请号:US17955858

    申请日:2022-09-29

    Abstract: Disclosed is an operation method of a memory device that includes a plurality of memory cells stacked in a direction perpendicular to a substrate. The method includes performing first to (n−1)-th program loops on selected memory cells connected to a selected word line from among the plurality of memory cells, based on a first program parameter, and after the (n−1)-th program loop is performed, performing n-th to k-th program loops on the selected memory cells, based on a second program parameter different from the first program parameter. Herein, n is an integer greater than 1 and k is an integer greater than or equal to n. The first and second program parameters include information about at least two of a program voltage increment, a 2-step verify range, and a bit line forcing voltage used in the first to k-th program loops.

    Nonvolatile memory device, vertical NAND flash memory device and SSD device including the same

    公开(公告)号:US10804293B2

    公开(公告)日:2020-10-13

    申请号:US16440299

    申请日:2019-06-13

    Abstract: A nonvolatile memory device includes a semiconductor substrate including a page buffer region, a memory cell array, bitlines, first vertical conduction paths, and second vertical conduction paths. The memory cell array is formed in a memory cell region above the semiconductor substrate and includes memory cells. The bitlines extend in a column direction above the memory cell array. Each of bitlines is cut into each of first bitline segments and each of second bitline segments. The first vertical conduction paths extend in a vertical direction and penetrate a column-directional central region of the memory cell region. The first vertical conduction paths connect the first bitline segments and the page buffer region. The second vertical conduction paths extend in the vertical direction and penetrate the column-directional central region. The second vertical conduction paths connect the second bitline segments and the page buffer region.

    Nonvolatile memory and storage device including same

    公开(公告)号:US12002514B2

    公开(公告)日:2024-06-04

    申请号:US17706097

    申请日:2022-03-28

    CPC classification number: G11C16/10 G11C16/0483 G11C16/3459 G11C8/12

    Abstract: A nonvolatile memory may include; a first memory cell array including a first selection transistor connected to a first string selection line, a second memory cell array including a second selection transistor connected to a second string selection line and spaced apart from the first string selection line by a first cutting line, and a peripheral circuit. The peripheral circuit may provide a first program voltage to the first selection transistor, provide a second program voltage to the second selection transistor different from the first program voltage, program the first selection transistor with a first threshold voltage in response to the first program voltage, and program the second selection transistor with a second threshold voltage level greater than the first threshold voltage in response to the second program voltage.

    Nonvolatile memory device and erase method thereof

    公开(公告)号:US11367487B2

    公开(公告)日:2022-06-21

    申请号:US16693925

    申请日:2019-11-25

    Abstract: A non-volatile memory device includes a memory cell array including a plurality of cell strings, each of the plurality of cell strings includes a gate-induced drain leakage (GIDL) transistor and a memory cell group, and a control logic to apply a voltage to each of the plurality of cell strings. The control logic performs a first erase operation of erasing the memory cell groups of each of the plurality of cell strings, a first verification operation of detecting erase results of the memory cell groups of each of the plurality of cell strings, and a program operation of programming the GIDL transistors of some of the plurality of cell strings.

    Nonvolatile memory device and storage device including nonvolatile memory device

    公开(公告)号:US11062775B2

    公开(公告)日:2021-07-13

    申请号:US16846539

    申请日:2020-04-13

    Abstract: A storage device includes a nonvolatile memory device and a controller. The controller provides the nonvolatile memory device with first data, an address, and a program start command and provides the nonvolatile memory device with second data after the program start command is provided the nonvolatile memory device. The nonvolatile memory device is configured to initiate a program operation, which is based on the first data, in response to the program start command and to continue to perform, based on the first data and the second data, the program operation when the second data is provided to the nonvolatile memory device. The nonvolatile memory device is configured to perform a program and a verification read of a first program loop based on the first data, the verification read of the first program loop being performed using one verification voltage.

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