Manufacturing method of semiconductor integrated circuit device

摘要

A manufacturing technique of a semiconductor integrated circuit device utilizing a defect correction technique of a reflection-type mask using extreme ultraviolet (EUV) light with a wavelength of about 13.5 nm as an exposure light source is provided. An auxiliary pattern having an opening diameter finer than that of an opening pattern in which a phase defect is generated is formed in an absorption layer in the vicinity of the opening pattern. The auxiliary pattern is a pattern for adjusting the exposure light amount at the time when the opening pattern is transferred to a photoresist film on a wafer.