NON-VOLATILE MEMORY DEVICE AND A BAD AREA MANAGEMENT METHOD FOR REDUCING THE NUMBER OF MEMORY CELLS WHICH ARE NOT USED

摘要

PURPOSE: A non-volatile memory device and a bad area management method are provided to process a part of accessed memory block in a bad area without processing the entire memory block in the bad area when a bad memory cell is sensed in the accessed memory block.;CONSTITUTION: A controller accesses the selected memory block by transmission of an address(S110). The controller determines whether to sense a bad memory cell(S120). In case the bad memory cell is sensed, the controller processes one or more memory layers in a bad area(S130).;COPYRIGHT KIPO 2013