Patent ID: 6309809
Filing Date: 2001-10-30
Classification: G03F

Abstract:
A process comprising:a) providing a substrate with an existing pattern in a non-planar surface with a non-planar topology or non-uniformly reflective feature on said surface,b) treating said substrate by applying an antireflective coating to delineate said existing pattern on said non-planar substrate surface as a topological feature,c) adjusting said topologial feature to delineate a desired new pattern in response to radiation with electromagnetic energy associated with said topological feature defined by said existing pattern,d) said topologial feature enabling an optical exposure phenomenon which is activated by illuminating a new pattern onto said non-planar surface, as a function of said existing pattern,e) forming a radiation sensitive layer which is responsive to radiation with electromagnetic energy over said surface of said substrate including said topological feature, andf) activating said radiation with electromagnetic energy to define a new pattern in said radiation sensitive layer with said new pattern being formed by exposure to said electromagnetic energy in a maskless step.