Sunday, September 21, 2014
Search
  
Submit your own News for
inclusion in our Site.
Click here...
Breaking News
New Oculus 'Crescent Bay' Headset Announced
Microsoft Offers iPhone Users 30 GB of Free Storage
New Tizen Device Coming in India
Samsung Launches My Knox App For Latest Mobile Device
Android L To Support Encryption By Default
Microsoft Outlines Basic Elements Of Direct3D 12
New GeForce WHQL Driver Released
Panasonic and Leica Expand Partnership Agreement
Active Discussions
Yamaha CRW-F1UX
help questions structure DVDR
Made video, won't play back easily
Questions durability monitor LCD
Questions fungus CD/DVD Media, Some expert engineer in optical media can help me?
CD, DVD and Blu-ray burning for Android in development
IBM supercharges Power servers with graphics chips
Werner Vogels: four cloud computing trends for 2014
 Home > News > General Computing > Scienti...
Last 7 Days News : SU MO TU WE TH FR SA All News

Monday, December 20, 2004
Scientists seek to forge diamond computer chip


Only a few are singing about them yet, but it could turn out that diamonds are a computer's best friend.

Damon Jackson is one researcher who sees the sparkling gems as a way to overcome the limitations of the silicon chips that serve as the brains of computers and the machines they run.

"It is not a pie-in-the-sky idea," said Jackson, who works in the Lawrence Livermore National Laboratory east of San Francisco. "I would not be surprised at all, as more people start to look into this, if five or 10 years down the line that diamond would be a common material in a computer."

He showed off a microscope focused on a $1 500 natural diamond topped with a spiral of electronic circuits. On a second diamond, eight circuits pointed upward to the summit.

Electronics and the most treasured of jewels may appear an unlikely marriage, but for the shortcomings of today's chips and new advances in creating diamonds.

A conventional computer chip is a slab of silicon topped with millions of transistors -- tiny switches that provide the computing power as electricity passes through them.

That blitz of electricity produces heat, a scourge of chip designers that may halt progress in making faster silicon semiconductors after a decade or so.

Diamond supremacy?

Enter the diamond, which already has a major presence in manufacturing because of its strength and extremely high melting point.

"You can operate a diamond-based transistor at higher temperatures than you could a silicon-based transistor," said John Venables, an advisor at the Pentagon's Defence Advanced Research Projects Agency.

Venables was already predicting diamond computer chips in 1990, when he headed a National Academy of Sciences study. Sceptics say the failure of such expectations to materialise points to the significant obstacles in making diamond chips.

"It is not on the mainstream radar screen," said Pushkar Apte, VP of technology programs at the Semiconductor Industry Association in San Jose, California.

Even now, Venables does not expect home computers to carry stickers saying "diamond inside" any time soon. Instead, he sees diamond chips in specialized devices like satellites, which have difficulty disposing of heat in space.

The price of such chips remains potentially daunting, but scientists hope new techniques in man-made diamonds will lower costs. "The initial cost is huge," Jackson said at Livermore. "Once it works, your cost per unit drops."

Jackson starts his work with a natural one-third carat diamond. Once he has put the circuits on it, he sends it to the University of Birmingham in Alabama, where Professor Yogesh Vohra patented a process to grow diamonds by essentially cooking methane and hydrogen gases in a very hot microwave oven.

Vohra seals the Livermore jewel with a man-made diamond layer. He foresees the eventual development of an entirely man-made diamond chip with the circuitry also made of diamonds.

"What we have done with Livermore is show that we could embed the electrical circuits on a high-quality diamond," he said, adding that engineering challenges make a full diamond chip unlikely before five or 10 years.

Serious work on manufactured diamonds dates back half a century, but scientists have seen growing success in recent years. Several private companies are already marketing the man-made gems.

Scientists are also working on using other materials -- including other carbon-based compounds -- to allow for continued fulfilment of Moore's Law, which predicts that computing power will double roughly every two years.

With current technology, "we are rapidly approaching the time when the laws of physics will limit our implementation of Moore's Law," Semiconductor Industry Association president George Scalise said recently. "We are now in a worldwide race to develop new technologies that will enable progress in semiconductor devices to continue at the pace we have seen for nearly 40 years."

Diamonds have long symbolized ennobling visions; 19th-century poet Thomas Holley Chivers called the stone "the crystalline Revelator of the achromatic white light of Heaven." Will diamonds one day prove the revelator of ultimate computing?

So far, the Livermore work shows they can contain sensors for measuring extreme heat or pressure, but it has yet to prove they work as computer chips. Scientists say plenty of research and development lie ahead on perfecting the little wires in the exalted realm of the diamond.


Previous
Next
Sonic completes purchase of consumer software division of Roxio        All News        Elpida Ships Fully-Buffered DIMM Samples for Advanced Performance in Next-Generation Servers
NVIDIA DVD Decoder 1.00.67     General Computing News      Elpida Ships Fully-Buffered DIMM Samples for Advanced Performance in Next-Generation Servers

Get RSS feed Easy Print E-Mail this Message

Most Popular News
 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .