Hi Huihang Could you share with us how you did image reversal with S1827 please? Thanks, Leo On Fri, Aug 21, 2009 at 9:18 AM, Huihang Dongwrote: > Hi, > > I patterned Ti-Pt on cured polyimide layer by lift-off (don't know what is your substrate). > The PR 1827(around 2.7 um) was patterned by Image reversal which can give you negative angle on the edge of trench to make lift-off easier. The Lift-off took me about 10-20 min. > > Hope this can help. > > Thanks, > Huihang -- Xiaoguang "Leo" Liu Birck Nanotechnology Center, Purdue University, 1205 W.State Street, West Lafayette, IN, 47906 USA liu79@purdue.edu