One widely used technique is direct laser ablation using a KrF excimer at 248 nm. We used this technique to produce via's from 25-1000 microns in electroplated polyimide radiation detectors. You should be aware that the cost of ownership on these systems are quite high. Also, if you want to machine holes over a large area, say larger than a few square cm this may not be the solution for you. Here's some companies that will quote a system for you: www.lambdaphysik.com and www.jpsalaser.com -Mike >>> l.beccai@mail-arts.sssup.it 12/10/02 09:15AM >>> Dear all, I'm searching information about the different technical possibilities to cut holes of 200 micron diameter in Kapton film. The profile of the material must keep a good quality. Any input is appreciated. Regards, Lucia Beccai -- ---------------------------------------------- Lucia Beccai CRIM Lab Polo Sant'Anna Valdera Scuola Superiore Sant'Anna Viale Rinaldo Piaggio 34 - 56025 -Pontedera (Pisa) - Italy phone: +39 050 883 488 fax +39 050 883 402 http://www-crim.sssup.it/ _______________________________________________ MEMS-talk@memsnet.org mailing list: to unsubscribe or change your list options, visit http://mail.mems-exchange.org/mailman/listinfo/mems-talk Hosted by the MEMS Exchange, providers of MEMS processing services. Visit us at http://www.memsnet.org/