Patent ID: 6653025
Filing Date: 2003-11-25
Classification: G03F

Abstract:
A producing method of a mask formed with a transfer pattern and to be irradiated with a predetermined exposure beam, comprising:making design data of an original pattern obtained by enlarging said transfer pattern, applying photosensitive material into which a coloring matter which absorbs light in a predetermined wavelength region is mixed onto at least one first substrate, and forming at least a portion of said original pattern on said first substrate, developing said photosensitive material on said at least one first substrate, and with said at least one first substrate being used as a parent mask having a mask pattern made of said photosensitive material remained after developing said photosensitive material, exposing a reduced image of said pattern of said parent mask onto a second substrate while stitching said reduced image using a projection exposure apparatus which carries out reduction projection using illumination light in a wavelength region absorbed by said photosensitive material.