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Technology Stocks : Ultratech Stepper -- Ignore unavailable to you. Want to Upgrade?

To: Andrew Vance who wrote (2579)	7/31/1998 3:19:00 PM
From: Clarksterh	Read Replies (1) \| Respond to of 3696

Andrew - Question: When companies, say Intel, talk of being at 0.25u production, I presume that is a reference to only a few of the layers. The other layers are still at 0.35u or 0.5u?. Thus, only 25%(?) of the layers require DUV. But as they move to 0.18u, I presume the number of layers that will need to be DUV will move up (60% ?). Do you happen to know some concrete data on this subject, or know where I could find such data? TIA Clark PS I realize it is different for every kind of chip, with MP's and DRAM's being the opposite ends of the spectrum, but I'm looking for a general rule or at least an understanding of the differences. Again, TIA.