Work-in-Progress: Mitigating Write Disturbance in Phase Change Memory Architectures

Phase Change Memory (PCM) is seen as a potential candidate that can replace DRAM as main memory, due to its better scalability. However, writing `0s' in PCM cells requires high-temperature RESET operations, which induce write disturbance errors in neighboring idle PCM cells due to excessive heat dissipation. This paper introduces low-temperature partial-RESET operations for writing `0s' in PCM cells. Compared to traditional RESET operations, partial-RESET operations dissipate negligible heat, and therefore, do not cause disturbance errors in neighboring cells during PCM writes.