Plasma radiation source for a lithographic apparatus
    8.
    发明申请
    Plasma radiation source for a lithographic apparatus 失效
    用于光刻设备的等离子体辐射源

    公开(公告)号:US20080137050A1

    公开(公告)日:2008-06-12

    申请号:US11634386

    申请日:2006-12-06

    IPC分类号: G03B27/42 G21K5/00

    CPC分类号: H05G2/003 H05G2/005

    摘要: A radiation source is disclosed that includes an anode and a cathode that are configured and arranged to create a discharge in a substance in a discharge space between the anode and the cathode and to form a plasma so as to generate electromagnetic radiation, the anode and the cathode being rotatably mounted around an axis of rotation, the cathode being arranged to hold a liquid metal. The radiation source further includes an activation source arranged to direct an energy beam onto the liquid metal so as to vaporize part of the liquid metal and a liquid metal provider arranged to supply additional liquid metal so as to compensate for the vaporized part of the liquid metal.

    摘要翻译: 公开了一种辐射源,其包括阳极和阴极,其构造和布置成在阳极和阴极之间的放电空间中的物质中产生放电并形成等离子体以产生电磁辐射,阳极和 阴极围绕旋转轴线可旋转地安装,阴极被布置成保持液态金属。 辐射源还包括激活源,其被布置成将能量束引导到液态金属上,以便使部分液态金属蒸发,并且液态金属提供器被布置成提供附加的液态金属,以便补偿液态金属的汽化部分 。