Hello Leily, you should use adhesion promoters/primers for bonding polymers. Have a look at GELEST or UNITED CHEMICAL TECHNOLOGIES for e.g. There you can find technical guides to choose the right primer for your combination of materials. Silane-based promoters work excellent on substrates like silicon, glass, aluminum. Please refer to the process guides from the manufacturers. A wrong application will lead rather to an "anti-sticking-coating" than to an adhesion layer. For SU-8 (epoxy) there are two common adhesion promoters: - 3-Aminopropyltriethoxysilane and - 3-Glycidoxypropyltrimethoxysilane For silicones (PDMS): - 3-Aminopropyltriethoxysilane and - Allyltrimethoxysilane Regards, André -----Ursprüngliche Nachricht----- Von: mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org [mailto:mems-talk-bounces+aboedecker=imsas.uni-bremen.de@memsnet.org] Im Auftrag von Leily Majidi Gesendet: Montag, 15. Februar 2016 23:40 An: mems-talk@memsnet.org Betreff: [mems-talk] Silicone-plastic bonding Hello all, I am having problem bonding silicone chip which is coated with chromium to Lexan ploycarbonat cover. The bonding seems good, however I have leakage in my device at the edges. I have microchannels on my chip and I need to have a flow through microchannels. I used SU8-2 with the thickness around 5 um. After spin coating, I baked two parts and then used UV and finally post bake. I appreciate it if you share your knowledge with me. Thanks! Leily _______________________________________________ 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 _______________________________________________ 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