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    • 2. 发明申请
    • METHOD AND APPARATUS FOR QUALIFYING OPTICS OF A PROJECTION EXPOSURE TOOL FOR MICROLITHOGRAPHY
    • 用于微型显微投影曝光工具的光学性质鉴定的方法和设备
    • WO2012013320A2
    • 2012-02-02
    • PCT/EP2011/003681
    • 2011-07-22
    • CARL ZEISS SMT GMBHGOEPPERT, Markus
    • GOEPPERT, Markus
    • G03F7/20
    • G01N21/95G03F7/70591G03F7/706G03F7/7085G03F7/70941
    • A method for qualifying optics (16; 14+16) of a projection exposure tool (10) for microlithography is provided. The optics comprise (16; 14, 16) at least one mirror element (14-1 to 14-7, 16-1 to 16-6) with a reflective coating (52) disposed on the latter. The method comprises the following steps: irradiating electromagnetic radiation (13, 42) of at least two different wavelengths onto the optics (16; 14, 16), a penetration depth of the radiation into the coating (52) of the mirror element varying between the individual wavelengths, taking an optical measurement on the optics (16; 14, 16) for each of the wavelengths, and evaluating the measurement results for the different wavelengths taking into consideration a decisive penetration depth of the radiation into the coating (52) of the mirror element for the respective wavelength.
    • 提供了一种用于验证用于微光刻的投影曝光工具(10)的光学器件(16; 14 + 16)的方法。 该光学器件包括(16; 14,16)至少一个反射镜元件(14-1至14-7,16-1至16-6),反射涂层(52)布置在反射涂层上。 该方法包括以下步骤:将至少两个不同波长的电磁辐射(13,42)照射到光学器件(16; 14,16)上,辐射进入反射镜元件的涂层(52)的穿透深度在 对于每个波长在光学器件(16; 14,16)上进行光学测量,并考虑到辐射决定性地穿透进入(52)涂层(52)的不同波长的测量结果, 各个波长的镜面元件。