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CN102119365A 辐射源、光刻设备和器件制造方法 有权

辐射源、光刻设备和器件制造方法
摘要：
一种光刻设备(1)，包括：辐射源(SO)，被配置成产生极紫外辐射，所述辐射源(SO)包括：腔(210)，在所述腔中产生等离子体(225)；收集器反射镜(270)，被配置以反射由所述等离子体(225)发射的辐射；和碎片减缓系统(230)，所述碎片减缓系统(230)包括：气体供给系统(235)，被配置以朝向所述等离子体供给第一气流(240)，所述第一气流(240)被选择以将由所述等离子体(225)产生的碎片热能化；和多个气体岐管(247)，被布置在靠近所述收集器反射镜(270)的位置处，所述气体岐管被配置成将第二气流(250)供给到所述腔(210)内，所述第二气流(250)被朝向所述等离子体(225)引导，以防止被热能化的碎片沉积到所述收集器反射镜(270)上。
摘要（英）：

A lithographic apparatus (1) includes a radiation source (SO) configured to produce extreme ultraviolet radiation, the radiation source (SO) including a chamber (210) in which a plasma (225) is generated; a collector mirror (270) configured to reflect radiation emitted by the plasma (225); and a debris mitigation system (230) including a gas supply system (235) configured to supply a first gas flow (240) toward the plasma, the first gas flow (240) being selected to thermalize debris generated by the plasma (225), and a plurality of gas manifolds (247) arranged at a location proximate the collector mirror (270), the gas manifolds configured to supply a second gas flow (250) in the chamber (210), the second gas flow (250) being directed toward the plasma (225) to prevent thermalized debris from depositing on the collector mirror (270).

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