never tried this. but you may wanna try to use a thin layer of uncrosslinked SU-8 as adhension layer. that might help Guocheng Shao --- On Tue, 6/23/09, ê¹íì§wrote: From: ê¹íì§ Subject: [mems-talk] bonding su-8 layer with pdms? To: mems-talk@memsnet.org Date: Tuesday, June 23, 2009, 12:58 AM Hi all! Has anyone tried bonding a Su-8 layered substrate with PDMS? I made a attempts by treating a su-8 film coated wafer with pdms using oxygen plasma (30W for 1 min), but the devices seemed not bond at all. Does anyone have suggestions? Thanks! Best regards, TJ