Hi All I have a quick question, I am trying to etch through 300 nm of silicon nitride using SF6 dry etch, and I am considering using 50 nm of chrome as mask layer, will this mask layer survive the etching? Or is there a better mask layer material? Thanks very much Best Regrads -- Yuan Jia Mechanical Engineering Department Columbia University _______________________________________________ Hosted by the MEMS and Nanotechnology Exchange, the country's leading provider of MEMS and Nanotechnology design and fabrication services. Visit us at http://www.mems-exchange.org Want to advertise to this community? See http://www.memsnet.org To unsubscribe: http://mail.mems-exchange.org/mailman/listinfo/mems-talk