Hi,I am trying to fabricate microchannel with some microstructures in it. I use
PDMS to make the channel. Its made of two layers. First layer: consists the
microstructures. you can image non-circular(square) cylinders rising from the
surface of PDMS as the microstructures.  Second layer: Is just a U channel which
sits right on top of the first layer, there by giving rise to a micro channel
with microstructures. Earlier we did not have structures, as a result of this,
there was lot of pdms surface available for bonding. We use plasma treatment to
bond them. A student taught me and I am following it blindly.  I would
appreciate if you could send me links to some sites which might describe this
process in detail. And also, I would like to know if there are other ways of
bonding PDMS surfaces to over come the problem that I have mentioned above.
Thanks a bunch,Vishwa

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