Lithographic apparatus, EUV radiation generation apparatus and device manufacturing method
    5.
    发明授权
    Lithographic apparatus, EUV radiation generation apparatus and device manufacturing method 有权
    光刻设备,EUV辐射发生装置及器件制造方法

    公开(公告)号:US09110377B2

    公开(公告)日:2015-08-18

    申请号:US13817792

    申请日:2011-08-04

    摘要: An EUV radiation generation apparatus includes a laser configured to generate pulses of laser radiation, and an optical isolation apparatus that includes a rotatably mounted reflector and a radially positioned reflector. The rotatably mounted reflector and the laser are synchronized such that a reflective surface of the rotatably mounted reflector is in optical communication with the radially positioned reflector when the optical isolation apparatus receives a pulse of laser radiation to allow the pulse of laser radiation to pass to a plasma formation location and cause a radiation emitting plasma to be generated via vaporization of a droplet of fuel material. The rotatably mounted reflector and the laser are further synchronized such that the reflective surface of the rotatably mounted reflector is at least partially optically isolated from the radially positioned reflector when the optical isolation apparatus receives radiation reflected from the plasma formation location.

    摘要翻译: EUV辐射发生装置包括被配置为产生激光辐射脉冲的激光器,以及包括可旋转地安装的反射器和径向定位的反射器的光隔离装置。 可旋转地安装的反射器和激光器是同步的,使得当光隔离装置接收到激光辐射脉冲以允许激光辐射脉冲传递到一个激光辐射脉冲时,可旋转安装的反射器的反射表面与径向定位的反射器光学连通 等离子体形成位置并且通过燃料材料液滴的蒸发而产生辐射发射等离子体。 可旋转地安装的反射器和激光器进一步同步,使得当光学隔离装置接收从等离子体形成位置反射的辐射时,可旋转安装的反射器的反射表面至少部分地与径向定位的反射器光学隔离。