Hi All, I have been testing this chemically amplified negative tone photoresist on copper for some time now. I have found that: 1. There is adhesion issue between Copper and the resist. Does anyone know the reason behind it. 2. The dedicated developer RD6 shows leaves marks on the copper. As though because of contamination. Does anyone know how to over come this. I am working in a completely metal-ion free bench. Many Thanks, Ricky Tyndall National Institute Cork, Ireland _______________________________________________ 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