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Storage device

專利號
US10867683B2
公開日期
2020-12-15
申請人
SAMSUNG ELECTRONICS CO., LTD.（KR Suwon-si）
發(fā)明人
Young-Seop Shim; Jaehong Kim
IPC分類
G11C16/26; G11C16/34; G06F11/10; G11C16/04
技術領域
memory,read,word,may,reclaim,zone,blkz,zones,wl1,count
地域： Suwon-si

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.

說明書

The memory interface 370 may be configured to communicate with the nonvolatile memory device 110/120 under control of the processor 320. As described with reference to FIG. 1, the memory interface 370 may convey a command, an address, and data to the nonvolatile memory device 110/120 through the input/output channel. The memory interface 370 may convey a control signal to the nonvolatile memory device 110/120 through the control channel.

In an exemplary embodiment, in the case where the storage device 100/200 does not include the RAM 130/230, the controller 300 may not include the buffer control circuit 360.

In an exemplary embodiment, the processor 320 may control the controller 300 by using codes. The processor 320 may load codes from a nonvolatile memory device (e.g., a read only memory) that is implemented in the interior of the controller 300. As another example, the processor 320 may load codes from the nonvolatile memory device 110/120 through the memory interface 370.

權利要求

1
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