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Nanowires Four Times Faster Than Silicon

evileyetmc writes "Advances in nanowires have shown that they may be the future in cheap, high-performance electronics. Researchers at Harvard have shown that nanowire transistors are are least four times faster than existing silicon ones. These nanowires show promise in being able to be embedded in plastics, and could lead to devices such as flexible displays that process information in the screen itself."

18 of 114 comments (clear)

  1. Wrong Conversion by Anonymous Coward · · Score: 5, Funny

    Why do breast implants have to be faster?

    1. Re:Wrong Conversion by Moqui · · Score: 5, Funny
      Just think of the distributed processing potential of the Los Angeles Basin! Millions upon millions of SETI cycles can be run just by the denizens of Santa Monica's 3rd Street Promonade. Drug research and nuclear explosion test data pulled from The Valley at an amazing clip.

      And people say that the owners of these devices are airheads. Nay! These are the future foremothers of the next great technological revolution -- GLDPs (Gonad Localized Distributed Processing). I for one applaud these persons of the technical cusp!

    2. Re:Wrong Conversion by szrachen · · Score: 5, Funny

      You missed the point... I think they are trying to get the fake ones to move naturally.

    3. Re:Wrong Conversion by Anonymous Coward · · Score: 4, Informative

      Why has this comment scored so highly? Breast implants are made of silicone. It's a very different material.

  2. Not ready for prime-time yet by eaglebtc · · Score: 4, Interesting

    The article says that we won't see this technology in computers and PDAs for a while because the relatively high cost of implementing mass production of nanowires cannot be justified by a mere 4x increase in speed. Its application will be limited to scientific research for now.

    Still, there is hope for implanted computers.

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  3. Electronic Paper by greenpenguin · · Score: 5, Interesting

    Integrated with things like electronic paper, this would be brilliant - it would eliminate the need for a bulky separate processing unit. Imagine being able to hold a piece of paper that acts as a (very) basic computer...

    1. Re:Electronic Paper by SatanicPuppy · · Score: 5, Interesting

      Pssh. Newspapers aren't obsolete. That's like saying "In depth news in handy, portable, written format" is obsolete.

      The media(e.g physical paper) may die, but the content will move on to the next sexy portable format that adequately fills all the niches that dumb paper (as opposed to smart paper) fills today. Despite what the average /.er maintains, the vast bulk of the population doesn't take their laptop with them into the crapper.

      Trust me on this...If newspapers could ditch the whole "Printing and Delivery" thing, they'd do it in a heartbeat. That stuff causes an amount of heartbreak you can only faintly imagine, working outside of the industry. Your data center goes down? Relocate it to your backup site an hour away...then print 100 metric tons of paper, and move it back in time to distribute it to people's lawns before 5am. It's an all-night job on a normal day. But with reliable portable e-delivery? They'd be done at midnight. They could lay off 75% of their staff, and concentrate on a better product.

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  4. Nano-future by UberMench · · Score: 5, Informative

    I have talked with engineers at Tokyo University about this technology, and they are very confident that nanotube transistors are the future of electronics, not only because of speed, but also because they have fewer heat dissipation problems. And the prospect of having technology for electronic displays that can be rolled up like paper for easy transport just r0x0rz!!!

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  5. More Info by Gridpoet · · Score: 4, Informative

    There is a great in-depth article here

    http://uw.physics.wisc.edu/~himpsel/wires.html ... very fascinating stuff the potential for small scale electronics is just staggering.

    i wonder how long before they can mesh nanowires directly to nerve cells... plug me in!

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  6. Ah, even more restrictive than HDMI by Dr.+Manhattan · · Score: 5, Interesting
    "...flexible displays that process information in the screen itself."

    Now the signal doesn't just get decrypted in the monitor, it doesn't even get decrypted and displayed until it reaches the display surface itself. Still doesn't close the analog hole, though...

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  7. Re:Something strangely familiar... by MaWeiTao · · Score: 4, Interesting

    What?!

    Regardless of what Apple's marketing team tries to imply that camera is clearly build into the shell with the lens peaking through an opening above the monitor.

    I know Apple likes to make their technology sound like it's more advanced than it really is, but rest assured that the display itself doesn't have a camera built in.

  8. Isn't here more to it than 4x speed increase? by Keyslapper · · Score: 5, Interesting

    I'm not an EE, so I might be wrong about some of this, but this is how I understand things - please corroborate or correct as appropriate.

    If the "hardware" is actually 4x faster than silicon, then that's a 4x increase for similarly scaled systems, right? The thing is that this technology can generate huge improvements in one of the primary focal points in chip design (aside from materials) over the last couple decades: smaller scale. There are several advantages to this: speed, heat, and power consumption, to name the top 3.

    If you only have to send a signal 1/10th the distance to get it processed, that's a 10x increase in the throughput. If the processing also takes place in an area 1/10th the size, that's a full 10x increase in speed for the same construction material. (I pulled that 1/10th out of the air for ease of use, I realize nanowires could potentially construct circuits much smaller than this scale compared to current silicon architecture.)

    Now, make that material 4x faster on top of the scaling improvements, and you have, not a 4x improvement, but a 40x improvement, right? Is there some glaring technical detail I'm missing?

    1. Re:Isn't here more to it than 4x speed increase? by Spellunk · · Score: 4, Informative

      Your first paragraph seems right on, but the second doesn't seem to make sense. The length of the traces have little to do with speed, it is the actual switching speed of the transistor from off to on that causes the delay. Nano wires and transistors may switch faster, but the additional 10x improvement may come from heat/density savings, not the signal path length.

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  9. This will be expensive... by cycletronic · · Score: 5, Funny

    ... since whenever I get frustrated with buggy code I'll just crumple up the monitor and throw it away.

  10. Sorting problem. by swagr · · Score: 4, Interesting

    I have a freind who does nanotube research.
    The problem, as I understand, is sorting.
    Not all nanotubes are conductive, and they can't be manufactured selectiveley.
    But otherwise they behave similarly.

    It's like me giving you a pile of billions of wires and saying: "Here, some of these conduct, and others don't. Now start sorting."

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    1. Re:Sorting problem. by jnaujok · · Score: 4, Informative

      The FA is about nanowires not nanotubes. They specifically point out the large difference between the two and say that nanowires can be made reliably and require no sorting. They also state that they are easy to make at room temperature.

      What I find intriguing is that the article mentions how conducive nanowire technology is to three dimensional circuit construction with a per-layer size of 100nm. That means I can build 1100 layers into a 0.11 mm thick sandwich. How about 100 Athlon 64 CPUs intermixed with 1000 1GB memory arrays? With how reliable they are claiming this technology is, that would represent a 100 core CPU, with 1 Terabyte of memory mixed in. Seems like this is clearly the future of the CPU market. Especially if the heat disappation is as good as they claim.

      How do you like my new Athlon 64 X100 with 1TB of memory running at 16 GHz?

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  11. Re:What about IBM's new transistor? by ChrisGilliard · · Score: 4, Informative

    The difference is SiGe (Silicon Germanium) vs. Nanowire. The 500 gHz SiGe processor is something that can be made today. In fact it was made by IBM according to the article you linked to. The reason you don't see a commercial version probably has to do with the fact that it's expensive and consumes a lot of power. I would imagine it would be more economical to buy 500 1 gHz chips at $40 a piece (current bulk price for a 1 gZh chip). The nanowire chip has potential to be more economical. If we can learn how to incorporate them into current CMOS processes, they will be very useful because wires are actually one of the biggest components in chips believe it or not. These nanowires are so small (and apparently fast now too) that they'd make chips cheaper/faster/less power intensive.

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  12. Out just in time by snoggeramus · · Score: 4, Funny

    4x faster? At least it will be out just in time for Vista.