Patent ID: 6730443
Filing Date: 2004-05-04
Classification: B82Y,G03F,G03H,H01J

Abstract:
A method for patterning a layer on a substrate with a desired image, the method comprising the steps of:projecting coherent radiation toward a reflector surface so that the coherent radiation is reflected off the reflector surface wherein the reflector surface includes information that corresponds to the desired image; projecting a portion of the coherent radiation to the layer without reflecting off the reflector surface; and maintaining the substrate including the layer in the path of the reflected radiation and in the path of the portion of the coherent radiation projected without reflecting off the reflector surface so that the reflected radiation and the coherent radiation projected without reflecting off the reflector surface interfere to provide a holographic projection of the desired image and so that the holographic projection of the desired image is projected onto the layer to thereby pattern the layer with the desired image; wherein the layer comprises an oxide layer that is activated on exposure to portions of the holographic projection of the desired image having sufficient intensity, so that activated portions of the oxide layer can be selectively removed, maintained, or modified.