Scientists Seek To Forge Diamond Computer Chip

edited December 2004 in Science & Tech
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's 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.
Source: Reuters

Comments

  • mmonninmmonnin Centreville, VA
    edited December 2004
    Best thing about diamods is that they can take extreme temps. But I am not sure that Diamonds have the properties that allow electrons to flow like Silicon does. Plus they will be crazy expensive.
  • EMTEMT Seattle, WA Icrontian
    edited December 2004
    From the article it does sound like diamond as a semiconductor. If they will do better, then it's only up to the cost.
  • entropyentropy Yah-Der-Hey (Wisconsin)
    edited December 2004
    I knew they were working on this for a long time :p We went to see my stepdad's friend who lives in D.C. and works on top-secret stuff. He didn't tell us much, except what he was allowed (that lots of computer things will someday be made of synthetic diamonds). They have unbelievable heat-transfer abilities. A very very thin slab of artificial diamond, if you hold it in your hand, will take the heat from your hand and allow you to cut through a block of ice. :eek: Very cool stuff.
  • Geeky1Geeky1 University of the Pacific (Stockton, CA, USA)
    edited December 2004
    diamond has the highest thermal conductivity of any substance, iirc.
  • edited December 2004
    Also, I do know that there has been significant progress made in the last several years on making synthetic diamonds; enough to give DeBeers some bad nightmares on what might happen in the near future. It seems that I read that they can make diamonds nowdays that are indistinguishable from the best natural diamonds except that they are even purer. Manufacturing cost is the biggest holdback I believe right now. Of course, then the cpu manufacturers will have to figure out how to use diamond as their substrate since it's so hard I sould think though. I'm sure that they can introduce the proper dopants into their process to make the diamond substrate perform like silicon.
  • edited December 2004
    sounds liek they will be man made diamons, not natural eath diamonds.
  • primesuspectprimesuspect Beepin n' Boopin Detroit, MI Icrontian
    edited December 2004
    Talk about bling bling! Imagine a solid diamond heatsink with a 120mm fan on top! :p
  • drasnordrasnor Starship Operator Hawthorne, CA Icrontian
    edited December 2004
    Talk about bling bling! Imagine a solid diamond heatsink with a 120mm fan on top! :p
    You'd have to be careful though: diamond is very brittle. Note that surface hardness is not the same as tensile strength, fracture toughness, etc so while diamond is the hardest naturally-occurring material, it can easily be shattered between a hammer and anvil (or crack under the weight of a hefty fan).

    As far as the natural diamond/artificial diamond comment, they're both nearly single crystals of carbon in zinc blende crystal structure. Whether or not it's made in a laboratory through artificial means or over millions of years through natural processes is immaterial to the final result. The only difference in the end product is that the quality control is better in the lab.

    -drasnor :fold:
  • primesuspectprimesuspect Beepin n' Boopin Detroit, MI Icrontian
    edited December 2004
    watch out... the debeers thugs will be after you with talk like that ;D
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