Method and apparatus for reducing unnoticed data errors in non-volatile memory systems

摘要

In one embodiment, an apparatus includes a memory array including a plurality of phase change memory cells (PCM cells); and a controller for determining to read data stored by the plurality of PCM cells, independently of a read command from a host device; and in response to the determination to read data stored by the plurality of PCM cells, independently of a read command from a host device, performing a dummy read operation on the plurality of PCM cells and performing an additional read operation on the plurality of PCMs cells.