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Biotech / Medical : Coherent (COHR) : Anyone else holding? -- Ignore unavailable to you. Want to Upgrade?

To: craig crawford who wrote (380)	1/3/1998 11:05:00 PM
From: Alan Siegal	Respond to of 788

All: I heard a story on the radio today regarding the recent air turbulence accident that resulted in injuries and a death in mid-air. Technology was discussed where lasers will be used to test for nearby turbulence. The technical expert who was introduced by the newscaster was from COHR. Are they so well known in the industry that they are the logical people to speak to with regard to any new developments, medical, semiconductor or other? -Alan

To: craig crawford who wrote (380)	1/4/1998 7:07:00 AM
From: JDN	Read Replies (1) \| Respond to of 788

Dear Craig: I am copying herein your referenced article. I think it is very important, in fact that was the kind of info. I was expecting a press release on. Extending Optical Lithography A high-power, vacuum-ultraviolet light source is necessary for semiconductor manufacturers to reach beyond the limits of the 193-nm argon fluoride laser. The only real contender to date is the F2 laser, with output at 157 nm. In a paper presented at the Semiconductor Workshop in Nagano, Japan, in November, by Uwe Stamm of Lambda Physik, a new record of output for the F2 laser was announced -15 W of average power in single-line operation (22 W in broadband operation) at repetition rates of 500 Hz. The narrow linewidth is of critical importance, since chromatic aberration cannot be sufficiently corrected with the optical systems that must be used in the VUV. Taken at its most optimistic, this development may allow the lifetime of existing lithography technology to be extended as far as 2010. Lambda's breakthrough was achieved by combining the company's NovaTuber all metal/ceramic tube construction together with a new, extremely efficient discharge design. "We have a tremendous amount of experience in engineering reliable, high-power laser sources for the deep ultraviolet and vacuum ultraviolet. For example, we already have more than 40 F2 lasers in the field," notes Dr. Dirk Basting, Lambda Physik's founder and president. Lambda Physik, Inc., 3201 West Commercial Blvd., Fort Lauderdale, FL 33309; tel: 954-486-1500; fax: 954-486-1501. _________________________________________________________________________---------------------------------------------------------------- I presume everyone knows that Lambda Physik is subsidiary of COHR. JDN