US 12,147,668 B2
Storage device
Ie Ryung Park, Gyeonggi-do (KR); Dong Sop Lee, Gyeonggi-do (KR); and Youn Won Park, Gyeonggi-do (KR)
Assigned to SK hynix Inc., Gyeonggi-do (KR)
Filed by SK hynix Inc., Gyeonggi-do (KR)
Filed on Sep. 6, 2022, as Appl. No. 17/903,557.
Claims priority of application No. 10-2021-0118233 (KR), filed on Sep. 6, 2021; and application No. 10-2022-0096989 (KR), filed on Aug. 3, 2022.
Prior Publication US 2023/0073148 A1, Mar. 9, 2023
Int. Cl. G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 11/10 (2006.01)
CPC G06F 3/061 (2013.01) [G06F 3/0635 (2013.01); G06F 3/0658 (2013.01); G06F 3/0679 (2013.01); G06F 11/1096 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A storage device comprising:
a memory device including one or more memory blocks including first sub-areas and second sub-areas configured to store higher level data than the first sub-areas; and
a controller configured to use the first sub-areas before the second sub-areas in order to store data in the memory device,
wherein the data stored in the first sub-areas includes data recovered after an error occurs therein.