Advanced Micro Devices - Moderated (AMD) Message Board

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Technology Stocks : Advanced Micro Devices - Moderated (AMD)

AMD 210.80

-4.8%

3:59 PM EST

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To: semiconeng who wrote (73769)	3/7/2002 7:51:36 PM
From: TimF	Read Replies (1) of 275872

I know they are two different issues but I'm thinking about the overall effects. If the extra layers means you produce less wafers (because there isn't enough clean room space to increase the amount of tools working in the fab) but the smaller die size (then what the chips would have been with a lower number of metal layers) means more chips per wafer, which effect is stronger on the overall number of good dies produced. I understand that more layers might also slightly reduce the yield per wafer directly, but indirectly increase it by keeping the die smaller. I think in this case both of these factors might be minor. Tim

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