Samsung Semiconductor recently announced its plan to mass produce 512MB PRAM
(Phase-change memory) chips come June. The long awaited PRAM chips are welcome competitors on the market which hope to successfully trump both NAND and NOR flash memory.
PRAM utilizes the interesting characteristic of chalcogenide glass, which can change states between crystalline and amorphous with the introduction of heat. Through this behavior, it can deliver significant performance gains over conventional flash memory.