公开(公告)号：US10672451B2

公开(公告)日：2020-06-02

申请号：US15947442

申请日：2018-04-06

Applicant: Samsung Electronics Co., Ltd.

Inventor： Kyoung Il Bang ,  Jun-Ho Jang ,  Dong Gi Lee

IPC: G11C7/00 ,  G11C11/406 ,  G11C16/30 ,  G06F12/02 ,  G11C7/22 ,  G11C16/34

Abstract: A storage device and a refresh method thereof are provided. The storage device includes at least a first processing core configured to operate by receiving a first power from a host, a second processing core separate from the first processing core, at least a first three-dimensional (3D) flash memory, a power module and a retention management module supplied with a second power from the power module when the first power is not supplied from the host. The retention management module is configured to refresh a part of the first 3D flash memory using the second processing core. The retention management module is configured to be woken up at intervals of a first period to refresh the part of the first 3D flash memory.