Researchers find state of matter that may extend Moore's Law

McGill scientists say quasi-3-D electron crystal could be key to shrinking transistors

Researchers at McGill University in Montreal have discovered a new state of matter that they say could greatly extend Moore's Law.

Engineers at companies like Intel and Advanced Micro Devices have long been cramming more and more transistors - the building blocks of the processor -- onto a chip. Last year, for instance, Intel announced that each of its new Penryn chips hold 820 million transistors. The Penryn chip keeps alive the 40-year-old prediction by Gordon Moor that the number of transistors on a chip will double every two years.

Some observers have long predicted that leakage and energy consumption will be significant roadblocks to the law at some point.

The McGill scientists, though, think they may have a way around those roadblocks.

The researchers say they've found a quasi-three-dimensional electron crystal that could enable them to harness quantum physics to make increasingly small computer chips. The crystal was discovered using a device cooled to a temperature that is 100 times colder than intergalactic space.

Dr. Guillaume Gervais, director of McGill's Ultra-Low Temperature Condensed Matter Experiment Lab, said that the material is not quite three-dimensional but it's something in between two-dimension and three-dimensional.

"In a standard transistor, you have a gate, and the electron flow is controlled by it like a faucet would control a gas flow," Gervais said in a statement. "You can understand the particles as independent units, which lets us treat them as ones and zeroes or on and off switches in digital computing. However, once you get down to the nano-scale, quantum forces kick in and the electrons may condense into a collective state and lose their individual nature. Then all sorts of bizarre phenomena pop up. In some cases, the electrons may even split. Concepts of 'on' and 'off' lose all meaning under these conditions."

Dan Olds, principal analyst with the Gabriel Consulting Group, said the McGill scientists are working on far-reaching science, and even if their theories hold true it would be quite some time before they could be used in the chip manufacturing process.

"There also isn't any evidence to say that this is the answer to continuing Moore's Law. It's a possible answer, it's a potential answer, but only after we understand how these new materials work, which we don't yet," said Olds.

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Sharon Gaudin

Computerworld
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