PHOTOMASK BLANK AND METHOD FOR MANUFACTURING PHOTOMASK
    2.
    发明申请
    PHOTOMASK BLANK AND METHOD FOR MANUFACTURING PHOTOMASK 有权
    PHOTOMASK BLANK及其制造方法

    公开(公告)号:US20120251930A1

    公开(公告)日:2012-10-04

    申请号:US13494530

    申请日:2012-06-12

    CPC分类号: G03F1/30 G03F1/32 G03F1/80

    摘要: According to one embodiment, a photomask blank wherein a second film is stacked on a first film, the first film containing chromium and which is not substantially etched by the dry etching using fluorine and which is etchable by the dry etching using oxygen-containing chlorine, and the second film containing no chromium and which is etchable by dry etching using fluorine and dry etching using oxygen-containing chlorine.

    摘要翻译: 根据一个实施方案,一种光掩模坯料,其中第二膜层叠在第一膜上,所述第一膜含有铬,并且其基本上不被使用氟的干蚀刻蚀刻,并且可通过使用含氧氯的干蚀刻来蚀刻, 并且第二膜不含铬,并且可以通过使用氟的干蚀刻和使用含氧氯的干蚀刻来蚀刻。

    Photomask blank and method for manufacturing photomask
    3.
    发明授权
    Photomask blank and method for manufacturing photomask 有权
    光掩模坯料和制造光掩模的方法

    公开(公告)号:US09091931B2

    公开(公告)日:2015-07-28

    申请号:US13494530

    申请日:2012-06-12

    IPC分类号: G03F1/50 G03F1/30 G03F1/32

    CPC分类号: G03F1/30 G03F1/32 G03F1/80

    摘要: According to one embodiment, a photomask blank wherein a second film is stacked on a first film, the first film containing chromium and which is not substantially etched by the dry etching using fluorine and which is etchable by the dry etching using oxygen-containing chlorine, and the second film containing no chromium and which is etchable by dry etching using fluorine and dry etching using oxygen-containing chlorine.

    摘要翻译: 根据一个实施方案,一种光掩模坯料,其中第二膜层叠在第一膜上,所述第一膜含有铬,并且其基本上不被使用氟的干蚀刻蚀刻,并且可通过使用含氧氯的干蚀刻来蚀刻, 并且第二膜不含铬,并且可以通过使用氟的干蚀刻和使用含氧氯的干蚀刻来蚀刻。