Lithographic projection apparatus, device manufacturing method and device manufactured thereby
    2.
    发明申请
    Lithographic projection apparatus, device manufacturing method and device manufactured thereby 有权
    平版印刷设备,装置制造方法和由此制造的装置

    公开(公告)号:US20050112508A1

    公开(公告)日:2005-05-26

    申请号:US10973250

    申请日:2004-10-27

    IPC分类号: G02B17/00 G03F7/20 H01L21/027

    摘要: In-situ 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 molecular oxygen. Generally, the space will be purged with an ozoneless purge gas which contains a small amount of molecular oxygen in addition to the usual purge gas composition. The technique can also be used in an evacuated space by introducing a low pressure of molecular oxygen into the space.

    摘要翻译: 用于光刻投影装置的光学部件的原位清洁可以通过在分子氧的存在下用包含波长小于250nm的UV或EUV辐射在含有光学部件的装置内照射空间来进行。 通常,除了通常的清洗气体组合物之外,空间将被除去含有少量分子氧的无臭吹扫气体吹扫。 该技术也可以通过将低分子氧引入该空间而在真空空间中使用。