Do these irregularities only show up after develop? It's not there after coat? How thick is the PR? On 10/5/07, Andrea Mazzolariwrote: > > Hello, > please specify all the process conditions (substrate, primer, soft bake > temperature and time etc...) > > Andrea > > > I am new to Photolithography. I am doing Photolithography with S1813. > > Many a times I get fudging/spreading of photoresist around the edge of > > the photoresist features after developing. They look more or less like > > threads spreading outward from the feature. > > Does anyone know what am I doing wrong?