Scanning-slit exposure device
    14.
    发明授权
    Scanning-slit exposure device 失效
    扫描狭缝曝光装置

    公开(公告)号:US5889580A

    公开(公告)日:1999-03-30

    申请号:US824624

    申请日:1997-03-27

    CPC classification number: G03F7/70125 G03F7/70358 G03F7/70808

    Abstract: A scanning-slit exposure device is provided with a radiation source (1) emitting radiation pulses through an exit window (2). An imaging system (3) images the exit window onto a surface (4) to be exposed by the radiation. The surface is scanned relative to the exit window image in a scan direction. To avoid the banding-type non-uniformities in the exposure, the device comprises a scattering element (12) which scattering element causes a blur of the exit window image only in the scan direction. The scattering element is arranged in the entrance pupil of the imaging system (3).

    Abstract translation: 扫描狭缝曝光装置设置有通过出射窗(2)发射辐射脉冲的辐射源(1)。 成像系统(3)将出射窗口成像到由辐射暴露的表面(4)上。 在扫描方向上相对于出口窗口图像扫描表面。 为了避免曝光中的带状不均匀性,该装置包括散射元件(12),散射元件仅在扫描方向上引起出射窗图像的模糊。 散射元件布置在成像系统(3)的入射光瞳上。

Patent Agency Ranking