Phase-change memory offers faster read and write speeds at lower power than conventional NOR and NAND flash memory, and allows for bit-alterability normally seen in RAM.
2. MEMS enabled storage technology could provide a storage density of 4Tb/in^2 When this technology is fully developed, it will be possible for a storage device to be reduced to the size of a fingernail, with a capacity of 1 Tb, (
Industry reaction to the Samsung/Numonyx agreement on phase change memory is generally positive
Phase Change memory could allow computers and cellphones to be instantly turned on. In 2010, it will cost about $100-150 [Forbes article quotes Ed Doller, CTO of Numonyx. He won't disclose with whom he's having those conversations, but says the first big market will likely be in high-end PCs and laptops. At this point, adding PCM chips to make a laptop turn on "instantly" would add about $100 to $150 to the cost of building the PC, Doller estimates. ] to add the phase change memory (PCM) to allow for computers that do not need to have boot up time. The PCM would hold operating system and machine state ready to be used.
The new MEMS, (Micro-Electro-Mechanical Systems) discovery will allow video camera batteries to increase their charging life approximately 2-1/2 times, consume 1/5th of the energy of disc storage and store 1-Tb on a postage stamp size device. Dr. Khatib expects this new technology to be available to the public within the next five-years.
Numonyx PCM chips is reviewed by Chipworks labs at semiconductor.net.
Numonyx signed a deal with Virident (startup) to supply NAND flash, and PCM for use as sub-DRAM tiers of storage in Virident's Green Gateway servers. The PCM could theoretically be a DRAM replacement, as it is said to be as fast as DRAM while still being non-volatile. There are several other NAND successor candidates, including STT RAM, and Programmable Metallization Cell memory.
Qimonda had carbon resistive memory, but Qimonda is going through bankruptcy now. It is unclear what will happen with the advanced memory technology they were working on.