Patent ID: 11862263
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 5:
6. A storage device comprising:
a non-volatile memory including a plurality of physical blocks; and
a controller configured to group the plurality of physical blocks into a plurality of super blocks that include a first super block, the first super block including a first physical block and a second physical block at a first time period, configured to perform a read operation on the first physical block using a first read level, perform the read operation on the second physical block using a second read level offset from the first read level based on a difference in electrical characteristics between the first physical block and the second physical block, configured to detect a defective physical block in the first super block based on a result of the read operation, and configured to replace the defective physical block with a third physical block.