I have a grad student doing some metal liftoff using Shipley 1800-27 positive resist and chlorobenzene. He is encountering some problems with his processing. Would anyone be able to give him advice? His name is Rizwan Aziz and can be contacted at r0aziz01@starbase.spd.louisville.edu Thanks, Kevin Walsh -- Dr. Kevin M. Walsh Electrical Engineering Department, Speed Scientific School University of Louisville, Louisville, KY 40292 (502) 852-0826 Internet address: kmwals01@starbase.spd.louisville.edu