Phase Change Memory (PCM) devices are a type of non-volatile memory that leverage the unique properties of phase change materials, typically chalcogenide glass, to store data. These materials can switch between amorphous and crystalline states, each with distinct electrical resistance, allowing data to be written, read, and erased. PCM devices are part of the emerging class of memory technologies aimed at bridging the performance gap between volatile memory like DRAM and non-volatile memory like flash storage.
