Phase-change Memory

Phase-change memory (PCM) is a type of non-volatile memory that uses the unique properties of chalcogenide glass to store data. PCM works by changing the physical state of the glass between amorphous and crystalline states, which represent the 0 and 1 states of binary data. The change in state is achieved by applying heat to the glass, which causes it to either melt and then cool quickly to form an amorphous state, or to be heated to a specific temperature to form a crystalline state. PCM has several advantages over other types of non-volatile memory, including high speed, low power consumption, and high endurance. PCM is used in a variety of applications, including embedded systems, mobile devices, and solid-state drives (SSDs).
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