PCM is an emerging memory technology exploits unique feature of chalcogenide-based phase change materials that undergo ultrafast and reversible phase transitions between a highly resistive amorphous state (digital “0”) and a conducting crystalline state (digital “1”) using nanosecond (ns) electrical pulses. Such permanent, yet reversible phase transitions (more than 10 million cycles) are stable over 10 years, ensures non-volatility as well as faster programming (ns) and therefore, PCM is being demonstrated as a strong candidate not only for next generation high speed non-volatile memory but also ‘universal memory’ for future high speed computing devices.
Memory and Logic Devices: https://anbuchalcogen.wixsite.com/anbarasu