发明名称 Halftone phase shift mask and its manufacturing method
摘要 A halftone phase shift mask comprises a transparent substrate, a light shielding film formed on the transparent film for shielding exposure light, and having a first opening, and a halftone phase shift film formed in the first opening on the transparent substrate for shifting the phase of the exposure light, and having a second opening which defines an exposed region.
申请公布号 US2002197544(A1) 申请公布日期 2002.12.26
申请号 US20020171552 申请日期 2002.06.17
申请人 IWASAKI HARUO 发明人 IWASAKI HARUO
分类号 G03F1/08;G03F1/00;G03F1/32;G03F1/68;H01L21/027;(IPC1-7):G03F9/00;G03C5/00 主分类号 G03F1/08
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