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    • 1. 发明授权
    • Systems and methods for insitu lens cleaning using ozone in immersion lithography
    • 在浸没式光刻中使用臭氧进行透镜清洁的系统和方法
    • US08817226B2
    • 2014-08-26
    • US12128035
    • 2008-05-28
    • Harry SewellLouis John Markoya
    • Harry SewellLouis John Markoya
    • G03B27/52G03B27/54G03B27/32G03B27/58G03B27/42
    • G03F7/70341G03F7/70925G03F7/70983
    • An immersion lithography apparatus is provided that includes an energy source, a projection optical system, a stage, a showerhead including an immersion liquid supply device and an immersion liquid discharge device that produces a flow of liquid within an exposure zone, and a cleaning device that cleans a portion of the projection optical system having been contacted with the immersion liquid by means of a cleaning gas. In an embodiment, the cleaning device includes an ozone generation unit produces a flow of ozone into the exposure zone. In embodiments, the apparatus includes a stage that includes a dose sensor and/or an ultra-violet light source. A method for insitu cleaning of a final lens element within an immersion lithography system having an immersion fluid showerhead that provides immersion fluid to an exposure zone of the immersion lithography system is also provided.
    • 提供了一种浸没式光刻设备,其包括能量源,投影光学系统,平台,包括浸没液体供应装置的喷头和在曝光区​​域内产生液体流的浸没液体排出装置,以及清洁装置, 通过清洁气体清洁已经与浸没液接触的投影光学系统的一部分。 在一个实施例中,清洁装置包括臭氧产生单元产生臭氧流入曝光区域。 在实施例中,该装置包括包括剂量传感器和/或紫外光源的平台。 还提供了一种用于在浸没式光刻系统内对最终透镜元件进行真空清洁的方法,其具有向浸没式光刻系统的曝光区域提供浸没流体的浸没式液体喷头。
    • 2. 发明授权
    • Systems and methods for thermally-induced aberration correction in immersion lithography
    • 浸没光刻中热致像差校正的系统和方法
    • US07995185B2
    • 2011-08-09
    • US11634924
    • 2006-12-07
    • Harry SewellLouis John MarkoyaDiane Czop McCafferty
    • Harry SewellLouis John MarkoyaDiane Czop McCafferty
    • G03B27/52
    • G03B27/72G03F7/70258G03F7/70341G03F7/7085G03F7/70858
    • Immersion lithography aberration control systems and methods that compensate for a heating effect of exposure energy in an immersion fluid across an exposure zone are provided. An aberration control system includes actuators that adjust optical elements within the immersion lithography system and a fluid heating compensation module coupled to the actuators. The fluid heating adjustment module determines actuator commands to make aberration adjustments to optical elements within the immersion lithography system based on changes in one or more of a flow rate of the immersion liquid, an exposure dose and a reticle pattern image. In an embodiment, the aberration control system includes an interferometric sensor that pre-calibrates aberrations based on changes in operating characteristics related to the immersion fluid. Methods are provided that calibrate aberrations, determine actuator adjustments and implement actuator adjustments upon changes in operating characteristics to control aberration effects.
    • 提供了浸没光刻像差控制系统和补偿曝光区域中浸没流体中曝光能量的加热效应的方法。 像差控制系统包括调节浸没式光刻系统内的光学元件的致动器和耦合到致动器的流体加热补偿模块。 流体加热调节模块基于浸入液体的流速,曝光剂量和掩模版图案图像中的一个或多个的变化来确定致动器命令以对浸没式光刻系统内的光学元件进行像差调整。 在一个实施例中,像差控制系统包括干涉测量传感器,其基于与浸没流体相关的操作特性的变化来预校准像差。 提供校准像差的方法,确定致动器调节并且在操作特性的变化中实施致动器调节以控制像差效应。
    • 3. 发明申请
    • Systems and Methods for Insitu Lens Cleaning Using Ozone in Immersion Lithography
    • 在沉浸光刻中使用臭氧进行透镜清洁的系统和方法
    • US20090109411A1
    • 2009-04-30
    • US12128035
    • 2008-05-28
    • Harry SewellLouis John Markoya
    • Harry SewellLouis John Markoya
    • G03B27/42
    • G03F7/70341G03F7/70925G03F7/70983
    • An immersion lithography apparatus is provided that includes an energy source, a projection optical system, a stage, a showerhead including an immersion liquid supply device and an immersion liquid discharge device that produces a flow of liquid within an exposure zone, and a cleaning device that cleans a portion of the projection optical system having been contacted with the immersion liquid by means of a cleaning gas. In an embodiment, the cleaning device includes an ozone generation unit produces a flow of ozone into the exposure zone. In embodiments, the apparatus includes a stage that includes a dose sensor and/or an ultra-violet light source. A method for insitu cleaning of a final lens element within an immersion lithography system having an immersion fluid showerhead that provides immersion fluid to an exposure zone of the immersion lithography system is also provided.
    • 提供了一种浸没式光刻设备,其包括能量源,投影光学系统,平台,包括浸没液体供应装置的喷头和在曝光区​​域内产生液体流的浸没液体排出装置,以及清洁装置, 通过清洁气体清洁已经与浸没液接触的投影光学系统的一部分。 在一个实施例中,清洁装置包括臭氧产生单元产生臭氧流入曝光区域。 在实施例中,该装置包括包括剂量传感器和/或紫外光源的平台。 还提供了一种用于在浸没式光刻系统内对最终透镜元件进行真空清洁的方法,其具有向浸没式光刻系统的曝光区域提供浸没流体的浸没式液体喷头。