Patent ID: 7344970
Filing Date: 2008-03-18
Classification: G03F,H01L

Abstract:
1. A method for depositing a photosensitive composition comprising the steps of: a) disposing on an electronic device substrate a photosensitive composition comprising a binder polymer comprising as polymerized units one or more (meth)acrylate monomers; one or more free-radically polymerizable cross-linking agents; one or more photoactive components; and an organic solvent; wherein the photosensitive composition is substantially free of water and wherein the photosensitive composition has a total solids content of 45% or greater; b) spinning the electronic device substrate at a speed and for a time sufficient to provide a layer of the photosensitive composition having a substantially uniform thickness, wherein the thickness of the layer is 50 μm or greater; c) imagewise exposing the layer of photosensitive composition to actinic radiation; and d) developing the exposed layer of photosensitive composition in an acidic developer composition.