Be sure to practice with a dummy chip. Unless your frequency tripling into the near UV you will have to deal with a pretty severe thermal load from the laser. It will likely cause a significant amount a chipping, cracking and other thermal damage. The best laser is an excimer at 157 nm, F2. You can out source to a laser job shop. You can try JPSA Laser @ 603-595-7048 -Mike >>> weiwei2@pd.jaring.my 08/16/02 10:32AM >>> Dear everybody i have a released MUMPS chip. Is it possible subdice it without killing' my microstructure? what can i do? I plan to use YAG laser to 'subdice' it---> which i have access. Is that bit overkill? Leow _______________________________________________ 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/