NONVOLATILE MEMORY DEVICE AND METHOD OF OPERATING THE SAME

    公开(公告)号:US20230154552A1

    公开(公告)日:2023-05-18

    申请号:US17847545

    申请日:2022-06-23

    Abstract: Aggressor memory cells connected to one or more aggressor wordlines are grouped into aggressor cell groups by performing a read operation with respect to the aggressor wordlines based on one or more grouping read voltages, where the aggressor wordlines are adjacent to a selected wordline corresponding to a read address among wordlines of a memory block. Selected memory cells connected to the selected wordline are grouped into a selected cell groups respectively corresponding to the aggressor cell groups. Group read conditions respectively corresponding to the selected cell groups are determined and group read operations are performed with respect to the plurality of selected cell groups based on the group read conditions. The read errors are reduced by grouping the selected memory cells into the selected cell groups according to the change of operation environments.

    Controller, a storage device including the controller, and a reading method of the storage device

    公开(公告)号:US11514997B2

    公开(公告)日:2022-11-29

    申请号:US17156801

    申请日:2021-01-25

    Abstract: A controller including: control pins for providing control signals to a nonvolatile memory; a buffer memory configured to store first to third tables; and an error correction code (ECC) circuit configured to correct an error in first data read from the nonvolatile memory according to a first read command, wherein the first table stores first offset information, the second table stores second offset information, and the third table stores third offset information, wherein the third offset information corresponds to a history read level and is determined by the first and second offset information, and when the error of the first data is uncorrectable, an on-chip valley search operation is performed by the nonvolatile memory according to a second read command, detection information of the on-chip valley search operation is received according to a specific command, and the second offset information which corresponds to the detection information is generated.

    Operating method of a nonvolatile memory device for programming multi-page data

    公开(公告)号:US11500706B2

    公开(公告)日:2022-11-15

    申请号:US17233816

    申请日:2021-04-19

    Abstract: An operating method of a nonvolatile memory device for programming multi-page data, the operating method including: receiving the multi-page data from a memory controller; programming first page data among the multi-page data to first memory cells connected to a word line adjacent to a selected word line; reading previous page data previously stored in second memory cells connected to the selected word line based on a first sensing value and a second sensing value after programming the first page data, calculating a first fail bit number by comparing first bits of the previous page data read based on the first sensing value to second bits of the previous page data read based on the second sensing value; and programming the previous page data read from the second memory cells and second page data among the multi-page data to the second memory cells based on the first fail bit number.

    IMAGE SENSOR WITH MULTIPLE COLOR FILTERS

    公开(公告)号:US20220231064A1

    公开(公告)日:2022-07-21

    申请号:US17648294

    申请日:2022-01-18

    Abstract: An image sensor includes a substrate that includes a plurality of photoelectric conversion devices, an insulating structure disposed on the substrate, a grid pattern structure disposed on the insulating structure, a plurality of color filters disposed on the insulating structure, and a plurality of microlenses disposed on the plurality of color filters. The grid pattern structure includes a first pattern portion and a plurality of second pattern portions spaced apart from the first pattern portion. The first pattern portion is disposed between proximate pairs of color filters among the plurality of color filters. An entire side surface of each second pattern portion of the plurality of second pattern portions is respectively surrounded by a color filter from among the first to third color filters.

    Storage device calculating optimal read voltage using degradation information

    公开(公告)号:US11380405B2

    公开(公告)日:2022-07-05

    申请号:US16810559

    申请日:2020-03-05

    Abstract: A storage device includes a first memory device including a plurality of memory blocks, and a plurality of pages included in each of the plurality of memory blocks, a second memory device configured to store first degradation information of the first memory device, and a controller configured to perform a first read operation on the first memory device using a first read voltage, to acquire the first degradation information, and to perform a second read operation on the first memory device using a second read voltage. The second read voltage is calculated using second degradation information of the first memory device estimated using the first degradation information. Each of the first degradation information and the second degradation information includes the number of error bits of each of the plurality of pages.

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