The enhancement of write throughout for phase change memory

The unbalanced speed for writing 0 (Reset) and 1 (Set) of phase change memory (PCM) causes lots of internal timing fragmentation during conventional parallel writing process. This fragmentation is the bottleneck of PCM writing speed. In this work, a novel self-write method is developed to eliminate fragmentation and enhance write throughout. The experimental result shows that this method enhances write throughout by 10%-25%.