Lithographic projection apparatus, device manufacturing method, device manufactured thereby, cleaning unit and method of cleaning contaminated objects
    1.
    发明申请
    Lithographic projection apparatus, device manufacturing method, device manufactured thereby, cleaning unit and method of cleaning contaminated objects 失效
    平版印刷设备,设备制造方法,由此制造的设备,清洁单元和清洁被污染物体的方法

    公开(公告)号:US20030095240A1

    公开(公告)日:2003-05-22

    申请号:US09988830

    申请日:2001-11-19

    IPC分类号: G03B027/52

    CPC分类号: G03F7/70925

    摘要: Cleaning of optical components for use in a lithographic projection apparatus can be carried out by irradiating a space within the apparatus containing the optical component with UV or EUV radiation having a wavelength of less than 250 nm, in the presence of an oxygen-containing species selected from water, nitrogen oxide and oxygen-containing hydrocarbons. Generally, the space will be purged with an ozone-less purge gas which contains a small amount of the oxygen-containing species in addition to the usual purge gas composition. The technique can also be used in an evacuated space by introducing a low pressure of the oxygen-containing species into the space.

    摘要翻译: 用于光刻投影装置的光学部件的清洁可以通过在选择的含氧物质的存在下,用波长小于250nm的UV或EUV辐射照射包含光学部件的装置内的空间来进行 来自水,氮氧化物和含氧烃。 通常,除了通常的吹扫气体组合物之外,空间将被含有少量含氧物质的无臭氧净化气体吹扫。 该技术也可以通过将含氧物质的低压引入空间而用于抽空空间。