公开(公告)号：US20210249094A1

公开(公告)日：2021-08-12

申请号：US16996266

申请日：2020-08-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KWANGWOO LEE ,  JINWOO HONG ,  YUNJUNG LEE

IPC: G11C16/34 ,  G11C16/08 ,  G11C16/16 ,  G11C16/30 ,  G11C16/28 ,  G06N20/00 ,  G06F12/02 ,  G06F12/0891

Abstract: A storage device includes a nonvolatile memory device that includes a first storage area and a second storage area. A controller of the storage device controls the nonvolatile memory device and performs a read reclaim operation of reading data stored in the first storage area of the nonvolatile memory device and writing the read data in the second storage area. In the read reclaim operation, the controller is further configured to allow the nonvolatile memory device to perform sample read operations on the first storage area and to determine locations of the second storage area, at which the data are to be written, based on results of the sample read operations.

公开(公告)号：US20240152289A1

公开(公告)日：2024-05-09

申请号：US18196788

申请日：2023-05-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： SANGJIN YOO ,  KWANGWOO LEE ,  HEEWON LEE ,  Byungchan Park ,  HYOJIN AHN ,  DONGCHEUL JANG

IPC: G06F3/06

CPC classification number: G06F3/064 ,  G06F3/0623 ,  G06F3/0656 ,  G06F3/0673

Abstract: There is provided a storage device, which includes: a memory device that includes a plurality of memory blocks, and stores first meta data including first status data and a first parameter in a first memory block among the plurality of memory blocks; and a memory controller that stores second meta data including second status data and second parameters, determines final meta data among a plurality of pieces of meta data including the first meta data and the second status data by comparing a plurality of pieces of status data with the first status data and the second status data, performs parameter confirmation for storing the final meta data in the meta block, and controls the memory device based on a parameter stored in the meta block.

公开(公告)号：US20200110547A1

公开(公告)日：2020-04-09

申请号：US16416750

申请日：2019-05-20

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： KWANGWOO LEE ,  CHANHA KIM ,  YUNJUNG LEE ,  JISOO KIM ,  SEUNGKYUNG RO ,  JINWOOK LEE ,  HEEWON LEE

IPC: G06F3/06 ,  G11C16/04 ,  G11C16/26 ,  G06F11/10 ,  G11C29/52 ,  G06N20/00

Abstract: A storage device includes a nonvolatile memory device including a plurality of memory blocks, each including a plurality of memory cells connected to a plurality of word lines, and a controller configured to perform a first read operation on memory cells connected to a selected word line included in a selected memory block based on a request of an external host device. The controller is further configured to perform a check read operation that checks a reliability of the memory cells of the selected memory block after performing the first read operation. In the check read operation, the controller is further configured to select and perform one of an actual check and a machine learning-based check.