Did you use adhesive promoter?For example, VM-652? 2012/11/19 Sheng Zhang> brine -- Yunda Wang, Ph.D. Department of Mechanical engineering University of Colorado - Boulder Boulder,Co. US. 80302 (614)3120920 E-mail: yundawang@gmail.com _______________________________________________ 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