US 12,277,335 B2
Storage device
Lee Hyun Kwon, Icheon-si Gyeonggi-do (KR)
Assigned to SK hynix Inc., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si Gyeonggi-do (KR)
Filed on Apr. 21, 2023, as Appl. No. 18/305,229.
Claims priority of application No. 10-2022-0153943 (KR), filed on Nov. 16, 2022.
Prior Publication US 2024/0160371 A1, May 16, 2024
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0646 (2013.01) [G06F 3/0611 (2013.01); G06F 3/064 (2013.01); G06F 3/0679 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A storage device comprising:
a memory device comprising a plurality of memory blocks; and
a control circuit configured to:
measure a wait time from a completion of processing a request received from an external device;
move first data from a single level cell (SLC) memory block to a first memory block having a target density lower than a maximum density by determining whether the waiting time has reached a first threshold time; and
move second data that is larger than the first data from the SLC memory block to a memory block having the maximum density by determining whether the waiting time has reached a second threshold time longer than the first threshold time.