发明名称 METHOD OF MANUFACTURING FIVE-GRAY SCALE PHOTOMASK AND FIVE-GRAY SCALE PHOTOMASK, AND PATTERN TRANSFER METHOD
摘要 A manufacturing method of 5 gradation photomask, a 5 gradation photomask and a pattern transcription method are provided to manufacture the 5 gradation photomask which has different exposure light transmittance. A light shielding portion(11), a light-transmitting part(12), and a mask pattern comprising the first semi light-transmitting part(13A), the second semi light-transmitting part(13B), and the third semi light-transmitting part(13C) which have different exposure light transmittance. A photo mask blank having the first semi light-transmitting layer(16) and a light-shielding layer(15) are prepared. The first resist pattern is molded by forming and developing the resist film formed on the light-shielding layer of the photo mask blank. The first patterning is performed by etching the light-shielding layer. After the first resist pattern is removed, the second resist pattern is molded.
申请公布号 KR20090093881(A) 申请公布日期 2009.09.02
申请号 KR20090016885 申请日期 2009.02.27
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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