公开(公告)号：US09190155B2

公开(公告)日：2015-11-17

申请号：US14155960

申请日：2014-01-15

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Joon-Ho Lee ,  Jong-Nam Baek ,  Dong-Hoon Ham ,  Sang-Wook Yoo ,  In-Tae Hwang

IPC: G11C16/06 ,  G11C16/16 ,  G11C16/04

CPC classification number: G11C16/16 ,  G11C16/0483

Abstract: A memory system includes a flash memory including a block having first sub-blocks and second sub-blocks different from each other, the second sub-blocks including free pages only; and a controller configured to erase the flash memory in units of the sub-blocks, and in a garbage collection operation, the controller is configured to copy data of a valid page of the first sub-blocks to at least one of the second sub-blocks.

Abstract translation: 存储器系统包括闪存，其包括具有彼此不同的第一子块和第二子块的块，第二子块仅包括空闲页; 以及控制器，被配置为以子块为单位擦除闪速存储器，并且在垃圾收集操作中，控制器被配置为将第一子块的有效页面的数据复制到第二子块中的至少一个， 块。

公开(公告)号：US09852802B2

公开(公告)日：2017-12-26

申请号：US15141389

申请日：2016-04-28

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sang-Wook Yoo

IPC: G11C16/34 ,  G06F3/06 ,  G11C16/10

CPC classification number: G11C16/3431 ,  G06F3/0611 ,  G06F3/0616 ,  G06F3/0634 ,  G06F3/0659 ,  G06F3/0679 ,  G11C16/10

Abstract: A memory system includes a nonvolatile memory device and a memory controller. The nonvolatile memory device has a first program mode and a second program mode. The second program mode programs data to have a larger read margin than the first program mode. The memory controller controls the nonvolatile memory device to program the data according to the second program mode for a read reclaim operation.