Hello, thanks for your advice, I just did several tests without Omnicoat, and it worked just great! No more adhesion problems. I used the protocol from the official website of Microchem, http://microchem.com/Prod-SU82000.htm, it's very good. -- Tong Chen Postdoc SyntheCell Team IGDR CNRS UMR 6290 2, Avenue du Professeur Léon Bernard 35043 Rennes France _______________________________________________ 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