Thanks for the suggestions. I think spray coating seems to be a very good solution to my problem. I am from Arizona State University and I am not sure if I can find a spray coater at my university. If there is anyone on the mailing list from ASU who has a spray coater, kindly send me an email. Thanks, -Ameya - ameya.g@gmail.com On Tue, Nov 10, 2009 at 1:50 PM, Oakes Garrettwrote: > Ameya, > > Spray coating a thin, conformal film of photoresist might be the first > step to solving your problem. Using this technique, one can eliminate > the problems encountered when spinning resist across topography. > Percent (non-)uniformity can also be decreased to roughly 10%. > > Please feel free to contact me directly if you have any further > questions. > > Best Regards, > > Garrett Oakes