Patent ID: 8417988

Claim:
A method for managing a defective block in a memory device, comprising: allocating a defective block when a memory block satisfies at least one defective block condition, wherein allocating of the defective block comprises: determining whether the memory block satisfies the defective block condition; performing a subsequent treatment on the memory block when the memory block satisfies the defective block condition; allocating the memory block as a defective block; and cancelling the allocated defective block when the allocated defective block satisfies at least one defective block cancellation condition, wherein the at least one defective block cancellation condition includes a number of program/erase cycles or a failure of a program/erase operation during the program/erase operation of the memory device; wherein the defective block cancellation condition includes whether or not a program/erase operation on the defective block is successful; and wherein the subsequent treatment is used to accelerate oxide recovery of memory cells in the defective block.