I am wondering if there is a recipe (assuming it's possible) for bonding together two wafers, one with a Silicon surface, and the other with a polyimide coating? Can it be done with just heat and pressure? Thanks, John Neumann -- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% Dr. John Neumann Postdoctoral Researcher, ECE Dept. Micro-electro-mechanical Systems (MEMS) 1209 Hamerschlag Hall Carnegie Mellon University Pittsburgh, PA 15213-3890 jneumann@ece.cmu.edu phone: (412) 268-4404 FAX: (412) 268-2860