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Politics : Formerly About Applied Materials
AMAT 322.31-5.6%3:59 PM EST

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To: Tony Viola who wrote (46171)5/4/2001 1:07:55 AM
From: Katherine Derbyshire   of 70976
 
You can tell how many wafers a particular process tool is running by how often it needs maintenance. Maintenance results in orders for process kits and/or service calls. Yield problems also result in service calls.

NVLS in particular is famous for fanatical tracking of its equipment performance metrics. I suspect the company has a very good idea of how many wafers are being run on its equipment vs. the theoretical maximum capacity for that equipment.

Katherine
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