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To: Yousef who wrote (4855)3/15/1998 9:33:00 PM
From: Petz  Read Replies (1) | Respond to of 6843
 
Yousef, thanks for your more detailed explanation of "rocket lots." I'm a little surprised that there is such a large queue of wafers ready for processing at each stage of production, apparently due to lack of equipment. The 3:1 speedup ratio for rocket lots would indicate that, on average, there are two wafers already waiting for each machine for each *new* wafer from the prior stage of production. But doubling the # of machines might only increase production 50%, because then you will sometimes be in the situation where a machine is waiting for wafers.

Petz