发明名称 Mask blank and mask for electron beam exposure
摘要 A mask blank for electron beam exposure includes a pattern support layer that transmits an electron beam therethrough, an electron beam scattering layer formed on the pattern support layer, and a support body supporting the pattern support layer and the electron beam scattering layer. The pattern support layer is formed by a material that has an amorphous structure and that is mainly composed of carbon-silicon bonds. The pattern support layer is a tensional stress membrane that has a surface roughness of 0.2 (nm, Rms) or less. A mask for electron beam exposure is formed by patterning the electron beam scattering layer of the mask blank.
申请公布号 US7445875(B2) 申请公布日期 2008.11.04
申请号 US20050139635 申请日期 2005.05.31
申请人 HOYA CORPORATION 发明人 AMEMIYA ISAO
分类号 B32B9/00;B32B15/00;B32B17/06;G03C5/00;G03F1/20;G03F1/60;H01L21/027 主分类号 B32B9/00
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