公开(公告)号：US20180173595A1

公开(公告)日：2018-06-21

申请号：US15805622

申请日：2017-11-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： DAE-JEONG KIM ,  YOENHWA LEE

IPC: G06F11/14

CPC classification number: G06F11/1458 ,  G06F11/1448 ,  G11C14/0018 ,  G11C17/16 ,  G11C29/00 ,  G11C29/42 ,  G11C29/4401 ,  G11C2029/0407 ,  G11C2029/4402 ,  G11C2229/743

Abstract: A data backup method for performing a post package repair (PPR) operation includes reading repair unit information of a memory device, storing the repair unit information in a register, determining whether to perform the PPR operation in response to a read error occurring while the memory device is being accessed, and performing a data backup operation of the memory device based on the repair unit information in response to determining that the PPR operation is to be performed.