Method for the protection of an optical element of a lithographic apparatus and device manufacturing method
    22.
    发明申请
    Method for the protection of an optical element of a lithographic apparatus and device manufacturing method 审中-公开
    保护光刻设备的光学元件的方法及其制造方法

    公开(公告)号:US20090074962A1

    公开(公告)日:2009-03-19

    申请号:US11898801

    申请日:2007-09-14

    CPC classification number: C23C16/06 C23C16/0236 G03F7/70916 G03F7/70983

    Abstract: A method for the protection of an optical element of a lithographic apparatus is disclosed. A deposition gas comprising SnH4 is provided to the surface of the optical element to deposit a Sn cap layer on the surface of the optical element. In this way, a Sn cap layer is deliberately provided on the optical element, which may protect the optical element during lithographic processing from debris from a (Sn) plasma source. During or after lithographic processing, the (deteriorated) cap layer may be repaired by providing a hydrogen radical containing gas and/or a SnH4 containing gas. Additionally or alternatively, the (deteriorated) cap layer may be removed and a new cap layer provided by providing the deposition gas comprising SnH4.

    Abstract translation: 公开了一种用于保护光刻设备的光学元件的方法。 包含SnH4的沉积气体被提供到光学元件的表面以在光学元件的表面上沉积Sn盖层。 以这种方式,在光学元件上有意地提供Sn盖层,这可以在光刻处理期间保护光学元件免受来自(Sn)等离子体源的碎片的影响。 在平版印刷加工期间或之后,可以通过提供含氢自由基气体和/或含SnH 4的气体来修复(劣化的)盖层。 附加地或替代地,可以去除(劣化的)盖层,并且通过提供包括SnH 4的沉积气体提供新的盖层。

    Spectral purity filter, lithographic apparatus, and method for manufacturing a spectral purity filter
    27.
    发明授权
    Spectral purity filter, lithographic apparatus, and method for manufacturing a spectral purity filter 有权
    光谱纯度滤光片,光刻设备和制造光谱纯度滤光片的方法

    公开(公告)号:US08817237B2

    公开(公告)日:2014-08-26

    申请号:US13392434

    申请日:2010-07-21

    CPC classification number: G03F7/70575 G02B5/1809 G21K1/10

    Abstract: A method of forming a spectral purity filter having a plurality of apertures configured to transmit extreme ultraviolet radiation and suppress transmission of a second type of radiation, in which trenches are formed in a base material in a pattern corresponding to the walls to be formed between the apertures. The trenches are filled with a grid material to form walls of the grid material, and the base material is selectively removed until the grid material is exposed and forms the spaces between the walls of the grid material for the apertures.

    Abstract translation: 一种形成光谱纯度滤光片的方法,该光谱纯度滤光器具有多个孔,其被配置为透射极紫外辐射并抑制第二类型辐射的透射,其中沟槽以对应于待形成的壁之间的壁的图案形成在基材中 孔。 沟槽填充有栅格材料以形成栅格材料的壁,并且选择性地去除基底材料,直到栅格材料暴露并且在孔的栅格材料的壁之间形成空间。

    Lithographic apparatus, plasma source, and reflecting method
    28.
    发明授权
    Lithographic apparatus, plasma source, and reflecting method 失效
    平版印刷设备,等离子体源和反射方法

    公开(公告)号:US08593617B2

    公开(公告)日:2013-11-26

    申请号:US12920417

    申请日:2009-03-03

    CPC classification number: G03F7/70958 G03F7/70033 G03F7/70916 G03F7/70983

    Abstract: A lithographic apparatus includes a plasma source that includes a vessel configured to enclose a plasma formation site, an optical device configured to transfer optical radiation to or from the vessel, and a reflector arranged in an optical path between the optical device and the plasma formation site source. The reflector is configured to reflect the optical radiation between the optical device and the plasma formation site. The reflector is formed, in operation, as a molten metal mirror.

    Abstract translation: 光刻设备包括等离子体源,其包括构造成包围等离子体形成位置的容器,被配置为向容器转移光辐射的光学器件和布置在光学器件与等离子体形成部位之间的光路中的反射器 资源。 反射器被配置为反射光学装置和等离子体形成部位之间的光辐射。 反射器在操作中形成为熔融金属镜。

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