公开(公告)号：US20160259685A1

公开(公告)日：2016-09-08

申请号：US15156912

申请日：2016-05-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YOUNG WOO JUNG ,  HWAN-CHUNG KIM ,  KYOUNGKUY PARK ,  EUNJU PARK ,  BONG-GWAN SEOL

IPC: G06F11/10 ,  G11C11/56 ,  G11C16/26 ,  G11C29/52 ,  G11C16/10

CPC classification number: G06F11/1068 ,  G06F11/1072 ,  G06F12/0246 ,  G06F12/0253 ,  G11C11/5628 ,  G11C11/5642 ,  G11C11/5671 ,  G11C16/10 ,  G11C16/26 ,  G11C29/52

Abstract: A memory system includes a nonvolatile memory device including a first memory area formed of memory blocks which store n-bit data per cell and a second memory area formed of memory blocks which store m-bit data per cell, where n and m are different integers, and a memory controller configured to control the nonvolatile memory device. The memory controller is configured to execute a read operation, and to execute a read reclaim operation in which valid data of a target memory block of the second memory area is transferred to one or more memory blocks of the first memory area, the target memory block selected during the read operation. The read reclaim operation is processed as complete when all the valid data of the target memory block is transferred to the one or more memory blocks of the first memory area.

公开(公告)号：US20190004736A1

公开(公告)日：2019-01-03

申请号：US15860498

申请日：2018-01-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： YOUNGGEUN LEE ,  JINWOO KIM ,  YOUNGSIK KIM ,  HWAN-CHUNG KIM ,  JEONGHOON CHO

IPC: G06F3/06

Abstract: A storage device includes nonvolatile memories and a controller. The controller previously manages a correspondence relationship between physical addresses indicating the memory regions and stream identifiers, before first write data is received by the controller. The controller controls the nonvolatile memories such that the first write data is stored in a first memory region of a physical address which is managed corresponding to a first stream identifier of the first write data in the correspondence relationship. The first write data is transferred to the nonvolatile memories based on the correspondence relationship, regardless of whether second write data having a second stream identifier is received by the controller.