Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 246.76

-0.5%

Nov 14 3:59 PM EST

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To: Windsock who wrote (76362)	4/3/2002 8:28:07 PM
From: Bill Jackson	Read Replies (2) of 275872

Windsock, Remember the botched gates? Notched gates, that is? They gave Intel abysmally low yields for just those statistical thermodynamic reasons mentioned by Ali. As you get smaller and smaller those fluctautions loom larger and larger and become the dominant failure mode. Since it is a meander around some mean value you will get trapped in a cleft stick as you get smaller and smaller. It takes only one transistor out of ~100 million to cause a failure(some areas may be more tolerant??). At some point you reach zero yield. Now there is also the thermal effect. At 40nm the devices are less tolerant of thermally induced diffusion of assorted dopant atoms, this leads to lower operational temperatures which leads to lower speeds. Can Intel solve these almost intractable problems? Can AMD? These are some of the questions. Bill

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