Patent ID: 6285817
Filing Date: 2001-09-04
Classification: G02B,G03F,G03H,H01J

Abstract:
A holographic lithography system for generating an interference pattern suitable for selectively exposing a photosensitive material, comprising:a platform for mounting a workpiece having a photosensitive surface; anda beam delivery system configured to direct a plurality of illuminating beams toward said platform in an overlapping manner to form an optical interference pattern in the vicinity of the workpiece, said beam delivery system including:a plurality of optical fibers having transmissive ends from which the illuminating beams respectively emanate divergently; anda support structure on which the transmissive ends of the optical fibers are mounted, the transmissive ends being positioned and angled on said support structure such that the illuminating beams overlap to form the optical interference pattern that selectively exposes the photosensitive surface of the workpiece.