JP2014523640A5 - - Google Patents

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Publication number
JP2014523640A5
JP2014523640A5 JP2014514465A JP2014514465A JP2014523640A5 JP 2014523640 A5 JP2014523640 A5 JP 2014523640A5 JP 2014514465 A JP2014514465 A JP 2014514465A JP 2014514465 A JP2014514465 A JP 2014514465A JP 2014523640 A5 JP2014523640 A5 JP 2014523640A5
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JP
Japan
Prior art keywords
light source
optical system
gas
source according
beam path
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JP2014514465A
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English (en)
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JP2014523640A (ja
JP6043789B2 (ja
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Priority claimed from US13/156,188 external-priority patent/US9516730B2/en
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Publication of JP2014523640A publication Critical patent/JP2014523640A/ja
Publication of JP2014523640A5 publication Critical patent/JP2014523640A5/ja
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Claims (10)

  1. 光学系と、
    ターゲット材料と、
    開口を有するEUVミラーと、
    ビーム経路に沿って前記光学系を通過して前記ターゲット材料を照射するレーザビームと、
    前記開口を通って前記ターゲット材料に向けて前記ビーム経路に沿って向けられる実質的に乱流がないガス流を発生させ、
    容積を取り囲み、前記開口に向けて実質的に乱流がない流れを生成するべく、該開口に向けて配置された小さな端部と、該小さな端部と反対側に配置された大きな端部とを有するテーパ付け部材と、
    複数のガスラインと
    を有するシステムと、
    を含み、
    前記容積の少なくとも一部分は、前記EUVミラーと前記光学系との間に配置され、該光学系は、該容積内で前記大きな端部と前記小さな端部との間の前記ビーム経路に沿って配置され、前記複数のガスラインの各々のガスラインは、前記テーパ付け部材の該大きな端部から該容積内へとガスを入れる
    ことを特徴とする極紫外(EUV)光源。
  2. 前記部材は、内壁を有し、かつ該内壁から突出する複数のフローガイドを更に含むことを特徴とする請求項1に記載の光源。
  3. 前記光学系は、窓であることを特徴とする請求項1に記載の光源。
  4. 前記光学系は、前記ビームを前記ビーム経路上の焦点に集束させるレンズであることを特徴とする請求項1に記載の光源。
  5. 前記テーパ付け部材は、前記ビーム経路を取り囲むことを特徴とする請求項1に記載の光源。
  6. 前記ガス流は、水素(プロチウム)、水素(重水素)、及び水素(トリチウム)から構成されるガスの群から選択されたガスを含むことを特徴とする請求項1に記載の光源。
  7. 前記テーパ付け部材は、前記レーザビーム内に延びないことを特徴とする請求項1に記載の光源。
  8. 前記ガス流は、毎分40標準立方リットル(sclm)を超える流量の大きさを有することを特徴とする請求項1に記載の光源。
  9. ターゲット材料液滴の流れを生成する液滴発生器を更に含むことを特徴とする請求項1に記載の光源。
  10. 前記光学系は、150mmよりも大きい直径を有するレンズであることを特徴とする請求項1に記載の光源。
JP2014514465A 2011-06-08 2012-05-10 レーザ生成プラズマ光源内の緩衝ガス流安定化のためのシステム及び方法 Active JP6043789B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US13/156,188 US9516730B2 (en) 2011-06-08 2011-06-08 Systems and methods for buffer gas flow stabilization in a laser produced plasma light source
US13/156,188 2011-06-08
PCT/US2012/037363 WO2012170144A1 (en) 2011-06-08 2012-05-10 Systems and methods for buffer gas flow stabilization in a laser produced plasma light source

Publications (3)

Publication Number Publication Date
JP2014523640A JP2014523640A (ja) 2014-09-11
JP2014523640A5 true JP2014523640A5 (ja) 2015-07-02
JP6043789B2 JP6043789B2 (ja) 2016-12-14

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JP2014514465A Active JP6043789B2 (ja) 2011-06-08 2012-05-10 レーザ生成プラズマ光源内の緩衝ガス流安定化のためのシステム及び方法

Country Status (6)

Country Link
US (1) US9516730B2 (ja)
EP (1) EP2719261A4 (ja)
JP (1) JP6043789B2 (ja)
KR (1) KR101940162B1 (ja)
TW (1) TWI576013B (ja)
WO (1) WO2012170144A1 (ja)

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