Patent ID: 6589718
Filing Date: 2003-07-08
Classification: G03F

Abstract:
A method of making a resist pattern, comprising:forming a resist layer on a target layer; patterning the resist layer to form original openings and at least one slit in the resist layer, the slit surrounding at least one of the original openings and having a specific width; and reflowing the patterned resist layer under heat to cause deformation in the original openings and the at least one slit, thereby contracting the original openings and eliminating the at least one slit, the original openings thus contracted serving as resultant openings for forming desired contact/via holes in the target layer, and the resist layer having the resultant openings comprising a resist pattern, wherein the at least one slit is formed in such a way that a volume of the resist layer material in a region of an original opening is approximately uniform for all of the original openings in the region.