Patent ID: 11860671
Assignee: WINBOND ELECTRONICS CORP.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 4:
5. The memory-control logic as claimed in claim 2, wherein when the available memory-size ratio is 25%, the array-control circuit sequentially searches for the damaged region in a first quarter region in the memory-cell array,
wherein when the array-control circuit has found the damaged region in the first quarter region, the array-control circuit sequentially searches for a good region in the remaining regions of the memory-cell array,
wherein when the array-control circuit has found the good region but has not found the nearest good region, the array-control circuit programs the redirecting mapping table that corresponds to the damaged region to the region index corresponding to the good region, and sets the region-failure flag corresponding to the good region to 1.