发明授权
- 专利标题: Storage device
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申请号: US15493860申请日: 2017-04-21
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公开(公告)号: US10319447B2公开(公告)日: 2019-06-11
- 发明人: Young-Seop Shim , Jaehong Kim
- 申请人: SAMSUNG ELECTRONICS CO., LTD.
- 申请人地址: KR Suwon-si, Gyeonggi-Do
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si, Gyeonggi-Do
- 代理机构: F. Chau & Associates, LLC
- 优先权: KR10-2016-0080281 20160627
- 主分类号: G06F11/10
- IPC分类号: G06F11/10 ; G11C16/26 ; G11C16/34 ; G11C16/04
摘要:
A storage device includes a nonvolatile memory device and a controller. A nonvolatile memory device includes a plurality of memory blocks. Each of the plurality of memory blocks is divided into a plurality of zones and is formed on a substrate. Each of the plurality of zones comprises one or more word lines. A controller performs a reliability verification read operation on a first zone of the plurality of zones of a memory block selected from the plurality of memory blocks if a number of read operations performed on the first zone reaches a first threshold value and performs the reliability verification read operation on a second zone of the plurality of zones of the selected memory block if a number of read operations performed on the second zone reaches a second threshold value.
公开/授权文献
- US20170371742A1 STORAGE DEVICE 公开/授权日:2017-12-28