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    • 52. 发明授权
    • Illumination system and scan type exposure apparatus
    • 照明系统和扫描型曝光装置
    • US6081319A
    • 2000-06-27
    • US578339
    • 1995-12-26
    • Kunitaka OzawaEiji SakamotoKazuhiro TakahashiYouzou Fukagawa
    • Kunitaka OzawaEiji SakamotoKazuhiro TakahashiYouzou Fukagawa
    • G03F7/20H01L21/027G03B27/54G03B27/42G03B27/72
    • G03F7/70558G03F7/70358
    • An illumination system includes a light source for providing pulse light, and a scanning system for relatively and scanningly moving an article, to be illuminated, relative to an illumination region to be defined by the pulse light, wherein, in a light intensity distribution defined in the illumination region with respect to a scan direction, the light intensity changes non-linearly from an least one end portion to a highest light intensity point in the distribution, wherein the light intensity distribution includes a first point at the one end portion, a second point whereat light intensity increase changes, a third point whereat light intensity increase changes, and a fourth point whereat the light intensity is highest, and wherein at least one of a width Wa between the first and second points and a width Wb between the third and fourth points substantially corresponds to or is greater than the relative movement amount between the illumination region and the article per pulse.
    • 照明系统包括用于提供脉冲光的光源和用于相对于扫描地移动要被照明的物品的扫描系统相对于由脉冲光限定的照明区域,其中在以 所述照明区域相对于扫描方向,所述光强度从所述分布中的至少一个端部到最高光强度点非线性地变化,其中所述光强度分布包括在所述一个端部处的第一点, 光强度增加变化的点,光强度增加变化的第三点,以及光强度最高的第四点,并且其中第一和第二点之间的宽度Wa和第三和第二点之间的宽度Wb中的至少一个 第四点基本上对应于或大于照明区域和物品/脉冲之间的相对移动量。