spintronics

New IBM memory promises faster, higher-capacity devices

A new kind of memory from IBM Labs is promising to revolutionize how much data we can store and how fast we can access it on our mobile and desktop devices.

After spending six years as a theoretical concept, the memory, dubbed Racetrack, finally is a huge step closer to reality. Researchers at IBM have recently confirmed that their theories of the physics behind Racetrack are valid and can be used to develop and manufacture this new type of memory.

This revolutionary type of memory could open up a whole new world for laptops, smartphones, and other mobile devices. Users would be able to store as much as 100 more times data on their portable gadgets, perhaps keeping as many as 500,000 songs or 3,500 full-length movies on one mobile device. And since Racetrack would use considerably less power, a single battery charge could power a device for weeks rather than days or hours.

The new memory is also expected to play a role in desktop computers and servers, allowing them to access more data much faster. In some ways, Racetrack combines the best elements of flash memory and magnetic storage and could prove to be the one technology to someday replace current RAM, Flash RAM, and even conventional disk drives.… Read more

IBM's 35 atoms and the rise of nanotech

When IBM researcher Don Eigler picked up and moved the first individual atom 20 years ago today, he paved the way for what arguably was the smallest publicity stunt ever: Big Blue's logo made from a precise arrangement of 35 Xenon atoms.

But moving tiny atoms had big consequences by making the idea of assembling devices atom by atom very real. And the company has built on that nanotechnology foundation, storing information on specific gold atoms, collecting carbon monoxide molecules into computer logic circuits, and pursuing a vision for vastly more compact computing technology.

Despite the progress, Eigler is … Read more

Intel touts progress toward intelligent computers

SAN FRANCISCO--I hope Intel warned the Luddites and pessimists away at the door, because the chipmaker had a lot of bullish statements Thursday about its belief that computers will become smarter than humans.

At the Intel Developer Forum here, Intel Chief Technology Officer Justin Rattner showed off a number of technologies in computing, robotics, and communication that he cited as evidence that Ray Kurzweil's concept of "singularity," when machine intelligence surpasses human intelligence, is impending. Demonstrations spotlighted the wireless transmission of electrical power, dextrous robots with new sensory abilities, a direct interface to the brain, programmable materials that can be used for shape-shifting devices such as resizable cell phones, and silicon photonics that enables chips to communicate with photons rather than electrons.

"We're making steady progress toward Ray Kurtzweil's singularity," Rattner said.

Intel of course remains at its heart a chipmaker, and Rattner began with a brief tour, assisted by Mike Garner, senior technologist for Intel's emerging materials group, of various successors to the current complimentary metal oxide semiconductor (CMOS) process used to make processors. Future ideas that pack ever more computing capacity into a given volume include spintronics, quantum computing, carbon nanotubes.

Long live CMOS And CMOS itself still has some legs, Rattner said, with recent progress shrinking the size of circuitry elements to their current size of 45 nanometers, or billionths of a meter.

"When will silicon run out of gas? Can it fuel this exponential growth for 40 years to come?" Rattner asked. "We got very close to the limit at 45 nanometers. We were able to innovate our way out of what seemed an unsolvable problem...We've got some challenges ahead of us. It looks like 32 nanometers is on track, but you go beyond that and it looks a little bit iffy."