Patent ID: 6576377
Filing Date: 2003-06-10
Classification: G03F

Abstract:
A photo mask pattern designing method configured to correct pattern configuration of at least one of a plurality of kinds of photo masks for making a single-layered resist pattern by transferring pattern configuration by use of multiple exposures of a resist coated on a substrate, characterized in that:a first photo mask used for exposure using interference of light from said multiple exposures has a first shading region and a first translucent region adjacent to each other; a second photo mask used for exposure before or after said exposure using interference of light has a second shading region and a second translucent region adjacent to each other; said first shading region and said second shading region are substantially aligned in location in said first photo mask and said second photo mask; said first translucent region and said second translucent region are substantially aligned in location in said first photo mask and said second photo mask; said first shading region is corrected in width in the direction of adjacent alignment of said first shading region and said first translucent region; and said second shading region is corrected in width in the direction of adjacent alignment of said second shading region and said second translucent region.