IBM rewrites the memory game
Imagine a memory chip that is 500 times faster than the current flash cards. IBM rewrites the memory game by 500 times, writes Puneet Mehrotra.india Updated: Dec 12, 2006 20:49 IST
Rewriting storage rules
Imagine a memory chip that is 500 times faster than the current flash cards. Imagine a chip that uses less than one-half the power to write data into a cell. As the demand for portable storage for music, video and photo increases so is the pace of innovation. This new innovation shows that unlike flash, phase-change memory technology can improve as it gets smaller with Moore's Law advancements. The organisation behind the current innovation is the IT major IBM along with scientists from Macronix and Qimonda.
The new innovation from IBM
Scientists from IBM, Macronix and Qimonda announced joint research results on Tuesday that give a major boost to a new type of computer memory with the potential to be the successor to flash memory chips, which are widely used in computers and consumer electronics like digital cameras and portable music players.
The advancement heralds future success for "phase-change" memory, which appears to be much faster and can be scaled to dimensions smaller than flash - enabling future generations of high-density "non-volatile" memory devices as well as more powerful electronics. Non-volatile memories do not require electrical power to retain their information. By combining non-volatility with good performance and reliability, this phase-change technology may also enable a path toward a universal memory for mobile applications.
The wonder alloy
The new material is a complex semiconductor alloy created in an exhaustive search conducted at IBM's Almaden Research Center in San Jose, California. It was designed with the help of mathematical simulations specifically for use in phase-change memory cells.
The semiconductor alloy can be changed rapidly between an ordered, crystalline phase having lower electrical resistance to a disordered, amorphous phase with much higher electrical resistance. Because no electrical power is required to maintain either phase of the material, phase-change memory is non-volatile. This in simple terms means more stability in storage and less crashing. Remember "volatile" memories lose their stored information whenever their power supply is interrupted.
The demand for storage
As we transcend into the electronic civilization the demand for storage increases. Data, music, photos, videos, the list is endless as everything gets into its electronic avatar. Besides on the corporate front the demand is rising, as companies require storage for emails, documents and other data, plus protection of data from calamities. The current demand is estimated at approximately $20 billion with a growth rate of approximately 10% annually.
The last word
IBM isn't the only one in the non-volatile storage market. There are also initiatives by organisations like Intel, Samsung amongst others. Just this August Toshiba and SanDisk teamed up in Japan on a $2.6 billion flash memory plant. There are several other initiatives. In IBM's case the "500 times faster" in its mini avatar promise by the new alloy is a definitive breakthrough. Looking forward to see how the product performs in actual conditions soon.
First Published: Dec 12, 2006 20:49 IST