Samsung has announced plans to produce memory modules built of what is known as a phase change material or PCM, that said to extend “battery life” up to 20% by changing the type of memory used in smartphones. “It plans to produce phase change memory (PCM) chips in the same format as existing designs so they can easily be worked into production runs.” “The most widely adopted form of PCM is typically made from an alloy of germanium, antimony and titanium which forms a glass-like material. Heating it by applying a voltage makes the material turn into two separate forms that exhibit very different resistances to electricity. As a result, the material can be used to represent the binary 0s and 1s used by computers. At its mobile technology forum held in Taipei, Samsung announced plans to start producing PCM modules 512megabits (Mbit) in size. These’ll be made to be compatible with traditional flash memory modules that’ve individual components only 40 nanometres wide. In addition, it said, PCM had a simpler structure than older formats so it should be easy to manufacture and start using in phones. Samsung lab tests suggest that the 512Mbit phase change memory can read and write data up to 10 times faster than some existing flash memory types. Overall, said Samsung, phase change memory is about three times faster than existing flash memory,” writes BBC.