发明名称 REFLECTION-TYPE PHOTOMASKS AND METHODS OF FABRICATING THE SAME
摘要 Reflection-type photomasks are provided. The reflection-type photomask includes a substrate and a reflection layer on a front surface of the substrate. The substrate includes a pattern transfer region, a light blocking region and a border region. A trench penetrates the reflection layer in the border region to expose the substrate. First absorption layer patterns are disposed on the reflection layer in the pattern transfer region, and a second absorption layer pattern is disposed on the reflection layer in the light blocking region. Sidewalls of the trench have a sloped profile. Related methods are also provided.
申请公布号 US2013196256(A1) 申请公布日期 2013.08.01
申请号 US201313754187 申请日期 2013.01.30
申请人 SK HYNIX INC.;SK HYNIX INC. 发明人 RYU CHOONG HAN;KIM YONG DAE
分类号 G03F1/24 主分类号 G03F1/24
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