Patent ID: 8227150
Filing Date: 2012-07-24
Classification: G03F,G03H

Abstract:
1. A method of patterning a material comprising: providing a substrate comprising a material layer; applying a photosensitive material over the material layer; forming a first image within the photosensitive material, the first image being at a first depth from a top surface of the photosensitive material; forming a second image within the photosensitive material, the second image being at a second depth different from the first depth; developing the first image to form a developed first image; removing photosensitive material located at the first depth without removing the developed first image; developing the second image to form a developed second image; removing photosensitive material located at the second depth without removing the developed second image; and using the developed first image and the developed second image as a mask to pattern the material layer.