发明名称 METHOD OF MANUFACTURING FIVE-GRAY SCALE PHOTOMASK AND FIVE-GRAY SCALE PHOTOMASK, AND PATTERN TRANSFER METHOD
摘要 PURPOSE: A method for manufacturing a 5-gradation photo-mask and a method for transcribing the 5-gradation photo-mask are provided to form a micro-pattern with high precision by mixing a first anti-transmission film and a second anti-transmission film which has different exposure light transmission ratio. CONSTITUTION: A first anti-transmission film(16) is etched by using a second resist pattern(31) as a mask. A second anti-transmission film(17) is formed on a patterned light-shielding layer and the whole side of a substrate including the first anti-transmission film. A resist film formed on the second anti-transmission film is drawn and developed. A third resist pattern is formed in a region corresponding to a light-shielding part, a first anti-transmission part, and a third anti-transmission part. The second anti-transmission film is etched by using the third resist pattern as the mask.
申请公布号 KR20120021325(A) 申请公布日期 2012.03.08
申请号 KR20120016852 申请日期 2012.02.20
申请人 HOYA CORPORATION 发明人 SANO MICHIAKI
分类号 H01L21/027;G03F1/54;G03F1/58;G03F1/68;G03F1/80 主分类号 H01L21/027
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