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    • 2. 发明授权
    • Stationary and dynamic radial transverse electric polarizer for high numerical aperture systems
    • 用于高数值孔径系统的静态和动态径向横向电偏振器
    • US07511884B2
    • 2009-03-31
    • US11187848
    • 2005-07-25
    • Donis FlagelloKevin CummingsAlexander Straaijer
    • Donis FlagelloKevin CummingsAlexander Straaijer
    • G02B5/30
    • G03F7/70566G02B5/3058
    • A radial transverse electric polarizer device is provided. The device includes a first layer of material having a first refractive index, a second layer of material having a second refractive index, and a plurality of elongated elements azimuthally and periodically spaced apart, and disposed between the first layer and the second layer. The plurality of elongated elements interact with electromagnetic waves of radiation to transmit transverse electric polarization of electromagnetic waves of radiation. One aspect of the invention is, for example, to use such polarizer device in a lithographic projection apparatus to increase imaging resolution. Another aspect is to provide a device manufacturing method including polarizing a beam of radiation in a transverse electric polarization.
    • 提供径向横向电偏振器装置。 该器件包括具有第一折射率的第一材料层,具有第二折射率的第二材料层和位于方位角和周期上间隔开的多个细长元件,并且设置在第一层和第二层之间。 多个细长元件与辐射的电磁波相互作用以透射辐射的电磁波的横向电极化。 本发明的一个方面是例如在光刻投影设备中使用这种偏振器装置来增加成像分辨率。 另一方面是提供一种包括在横向电极化中偏振辐射束的装置制造方法。
    • 6. 发明授权
    • Optimized polarization illumination
    • 优化极化照明
    • US08395757B2
    • 2013-03-12
    • US12773775
    • 2010-05-04
    • Robert SochaDonis FlagelloSteve Hansen
    • Robert SochaDonis FlagelloSteve Hansen
    • G03B27/72G03B27/54
    • G03F7/705G03F7/70125G03F7/70341G03F7/70566G03F7/70616
    • Disclosed concepts include a method of optimizing polarization of an illumination of a pattern to be formed in a surface of a substrate. Polarized illumination is optimized by determining an illumination intensity for at least one point on an illuminator for at least two polarization states, determining image log slope for the at least one point on the illuminator for the at least two polarization states, determining a maximum image log slope (ILS) where the ILS is near zero for the at least one point on the illuminator, and selecting an optimal polarization state corresponding to the at least two polarization states that minimizes an ILS for the at least one point on the illuminator. This may be repeated for a plurality of points on the illuminator.
    • 公开的概念包括优化待形成在衬底的表面中的图案的照明的偏振的方法。 通过确定至少两个偏振状态的照明器上的至少一个点的照明强度来确定极化照明,确定用于至少两个偏振状态的照明器上的至少一个点的图像对数斜率,确定最大图像记录 斜率(ILS),其中ILS对于照明器上的至少一个点接近于零,并且选择对应于使得照明器上的至少一个点的ILS最小化的至少两个偏振状态的最佳极化状态。 对于照明器上的多个点可以重复这一点。