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    • 10. 发明授权
    • Method for modifying a polarization distribution in microlithographic projection exposure apparatus, and microlithographic projection exposure apparatus
    • 用于修改微光刻投影曝光装置中的偏光分布的方法,以及微光刻投影曝光装置
    • US09128389B2
    • 2015-09-08
    • US13010145
    • 2011-01-20
    • Damian Fiolka
    • Damian Fiolka
    • G03B27/42G03F7/20
    • G03F7/70566
    • The disclosure relates to a method for modifying a polarization distribution in a microlithographic projection exposure apparatus, and to a microlithographic projection exposure apparatus. The projection exposure apparatus has an illumination device and a projection objective. The illumination device has an optical axis and a correction arrangement having a lambda/4 plate arranged rotatably about the optical axis and/or a lambda/2 plate arranged rotatably about the optical axis. The method includes determining a polarization distribution in a predetermined plane of the projection exposure apparatus, and rotating the lambda/4 plate and/or the lambda/2 plate about the optical axis so that a local variation of the polarization distribution is reduced after rotation in comparison with the state before the rotating.
    • 本公开涉及一种用于修改微光刻投影曝光装置中的偏振分布的方法,以及微光刻投影曝光装置。 投影曝光装置具有照明装置和投影物镜。 照明装置具有光轴和具有围绕光轴可旋转地设置的λ/ 4板和/或围绕光轴可旋转地设置的λ/ 2板的校正装置。 该方法包括确定投影曝光设备的预定平面中的偏振分布,以及围绕光轴旋转λ/ 4板和/或λ/ 2板,使得在旋转之后偏振分布的局部变化减小 与旋转前的状态进行比较。