Attenuating phase shift mask blank and photomask
    1.
    发明专利
    Attenuating phase shift mask blank and photomask 审中-公开
    相位移动遮罩和照相机

    公开(公告)号:JP2005084682A

    公开(公告)日:2005-03-31

    申请号:JP2004255261

    申请日:2004-09-02

    CPC classification number: C23C14/3442 C23C14/10 C23C14/14 C23C14/46 G03F1/32

    Abstract: PROBLEM TO BE SOLVED: To provide an attenuating phase shift mask blank to be used in lithography and to provide a method for manufacturing the mask blank.
    SOLUTION: The attenuating phase shift mask comprises a substrate and a thin film system applied on one surface of the substrate. The thin film system includes a phase shift layer comprising a phase shift control upper layer and a transmission control upper layer. The phase shift mask is capable of producing a photomask having almost 180° phase shift and at least 0.001% transmission for exposure light at ≤200 nm wavelength. The thin film system is essentially free from defects having ≥0.5 μm particle size.
    COPYRIGHT: (C)2005,JPO&NCIPI

    Abstract translation: 要解决的问题:提供用于光刻中的衰减相移掩模毛坯,并提供一种制造掩模毛坯的方法。 解决方案:衰减相移掩模包括施加在衬底的一个表面上的衬底和薄膜系统。 薄膜系统包括相移层,包括相移控制上层和透射控制上层。 相移掩模能够产生对于≤200nm波长的曝光光具有几乎180°相移和至少0.001%透射率的光掩模。 薄膜系统基本上没有≥0.5μm粒度的缺陷。 版权所有(C)2005,JPO&NCIPI

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