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Technology Stocks : Dupont Photomasks (DPMI) -- Ignore unavailable to you. Want to Upgrade?

To: Tulvio Durand who wrote (552)	5/2/1998 11:35:00 PM
From: Duane L. Olson	Read Replies (1) \| Respond to of 955

Tulvio...Good post over on the CYMI thread. As an owner of both CYMI and DPMI, I did go back and forth just a bit a while back, and came down in favor of DPMI as the more certain bet. You apparently have some info that we haven't discussed on this thread, RE: the life of photomasks in light of specific pulse frequencies for the (CYMI) eximer lasers.. can you give us a short course on that, or point us to some info?...Mask usage rates are of quite a bit of interest. As an aside, it seems to me that the 4X number for masks was the cost move from $4000 per mask to $16,000 per mask for .35u and .25u....and a number like 44,000 for the .18u ((ALL: jump in and correct my numbers if I remembered thhose incorrectly). I cannot imagine what the cost per mask will be when DUV reaches/exceeds .10u (per the recent U of Texas test results). But DPMI was the supplier of the phase shift mask (for use with a CYMI laser at 193 nm).. for those tests. Nice future for the next decade or so with DPMI, no? TSO