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      #1  
    Old 03-20-02, 12:25 AM
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    Question IBM's 100Ghz chips

    Awile back I saw on yahoo news IBM made some chips that run at 100Ghz. How are these different from PC cpu's? Will they revolutionize anything? I think not since they've had the 70Ghzs out for awile now and nothing seems to be happening. I want more information!
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    Old 07-18-02, 05:20 PM
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    i too read about IBM developing something of a 100Ghz thingy... (in a magazine)
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    Old 05-08-03, 03:44 AM
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    Old 05-08-03, 09:47 AM
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    I took a class on semiconductor materials and we learned alot about how electrons and holes actually flow in the materials. With current technology the limit of Silicon only transistors is around 20GHz. While (Gallium Arsenide) GaAs and (Gallium Nitride) GaN can reach up into the several hundred GHz range that you have seen and that was mentioned in the article. Because nearly all the fabs around the world now are silicon based it would be a long time before they convert to any other manufacturing process, especially while they still have some headroom in silicon for the commercial market.

    Currently GaAs and other Galium based transistors are being used in cellphones and other small scale applications like that (many are also silicon). It will probably be the ceiling of silicon that forces a change to the faster semiconductor materials (or a fancy new GaAs manufacturing process). I can't wait!
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    Old 05-08-03, 09:53 AM
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    I might point out that GaAs is expensive to manufacture with... In part because it's hard to get large wafers.
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    Old 04-25-04, 02:51 PM
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    All these problems may be overcome in years to come when our PC's are cooled by LN
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    Old 04-25-04, 04:32 PM
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    At least in the US, I believe you are required to have a license or permit or something along those lines to be able to purcahse N2. Is that at all true in the UK?
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    Old 04-26-04, 11:07 AM
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    I'm not aware of any license requirement, but it would be something that could cause problems if every man and his dog started using it, I found this on the net http://www.zyra.org.uk/getliqn.htm
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    Old 04-26-04, 12:48 PM
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    If you have a leak too, and a large amount of it, it starts to displace air quite rapidly. Goodbye person living in the basement
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    Old 04-26-04, 01:52 PM
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    , not as bad as CO2 though, it takes a lot less CO2 than LN to take you out as CO2 takes the place of Oxygen (or something like that). Maybe gas cooling isn't a good thing for home PC's unless the fluid can be kept in a self contained system.
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