Dwayne, It is possible to bond PDMS to cyclo-olefin and to PMMA through the use of a capacitively induced oxygen plasma. However, care must be taken with the plasma system used. Most plasma systems will also begin to etch the surface of the material, especially when using an oxygen plasma on organic materials. Instead, the use of a dedicated system specifically intended for plasma activation for bonding should be used. Here are a couple references for the use of plasma activation for cyclo-olefin and PMMA bonding(I will email the PDF documents to you in a separate email): Mizuno, J., et. Al "Cyclo-Olefin Polymer Direct Bonding Using Low Temperature Plasma Activation Bonding", Proceedings of the 13th International Conference on Solid-State Sensors, Actuators, and Microsystems, Seoul, Korea, June 5-9, 2005 Glinsner, T., et. Al "Fabrication of Novel Type Microfluidic Devices by Hot Embossing Technology," Proceedings of the 9th International Conference on the Commercialization of Micro and Nano Systems, Edmonton, Alberta, Canada, 29 August - 2 September 2004 Best Regards, Chad Brubaker -----Original Message----- From: Dwayne Dunaway Sent: Tuesday, September 27, 2005 3:06 PM To: General MEMS discussion Subject: [mems-talk] bonding PDMS to plastics Hello, Does anyone know if it is possible to bond PDMS to PMMA or polyolefin using oxygen plasma? Are there other bonding techniques? Thanks, Dwayne Dunaway