JP3943089B2 - X線放射線または極紫外線放射線を発生するための方法および装置 - Google Patents
X線放射線または極紫外線放射線を発生するための方法および装置 Download PDFInfo
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- JP3943089B2 JP3943089B2 JP2004036569A JP2004036569A JP3943089B2 JP 3943089 B2 JP3943089 B2 JP 3943089B2 JP 2004036569 A JP2004036569 A JP 2004036569A JP 2004036569 A JP2004036569 A JP 2004036569A JP 3943089 B2 JP3943089 B2 JP 3943089B2
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- 230000005855 radiation Effects 0.000 title claims description 40
- 238000000034 method Methods 0.000 title claims description 19
- 239000007788 liquid Substances 0.000 claims description 62
- 238000001459 lithography Methods 0.000 claims description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 8
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 239000011737 fluorine Substances 0.000 claims description 5
- 230000008016 vaporization Effects 0.000 claims description 5
- 238000009834 vaporization Methods 0.000 claims description 5
- 238000001420 photoelectron spectroscopy Methods 0.000 claims description 4
- 238000004876 x-ray fluorescence Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims description 3
- 238000003963 x-ray microscopy Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 2
- 238000002508 contact lithography Methods 0.000 claims 2
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- 230000003287 optical effect Effects 0.000 description 4
- 239000013077 target material Substances 0.000 description 4
- 238000001900 extreme ultraviolet lithography Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G2/00—Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
- H05G2/001—Production of X-ray radiation generated from plasma
- H05G2/003—Production of X-ray radiation generated from plasma the plasma being generated from a material in a liquid or gas state
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05G—X-RAY TECHNIQUE
- H05G2/00—Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma
- H05G2/001—Production of X-ray radiation generated from plasma
- H05G2/008—Production of X-ray radiation generated from plasma involving an energy-carrying beam in the process of plasma generation
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- X-Ray Techniques (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
Description
Electronics and Electron Physics 65, 91 (1985))に記載されている。これによって非常に小さくかつ空間的に輪郭のはっきりした液滴が得られる。このようにして、デブリスを少なくすることに加えて、このコンパクトなX線源においては、極めて近付き易い幾何学的形態を有し、新たなターゲット材料が連続的に供給されるので中断なしに長期間に亘って作動させることができ、かつ繰返し数の多いレーザを使用することによって高い平均X線出力を得ることができる。同様の技術は、ヘルツらによる「レーザプラズマ放射線の応用II」、M.C.リチャードソン編のスピエ第2523巻(1995年第88〜93頁)(Hertz et al,in Applications of Laser Plasma Radiation II, M.C. Richardsson, Ed., SPIE Vol. 2523 (1995), pp 88-93)、欧州特許第186,491号、ライメルらによるアプライド・フィジックス・レター66,20(1995年)(Rymell et al, Appl. Phys. Lett 66, 20 (1995))、ライメルらによるアプライド・フィジックス・レター66,2625(1995年)(Rymell et al, Appl. Phys. Lett 66, 2625 (1995))、および米国特許第5,459,771号に開示されている。
16によって解決することができる。また、図示はしないが、主真空チャンバ8の外側にノズル10を位置決めし、非常に小さな孔を通して液体を注入するようにしてもよい。この場合には、所望量の液体のみを主真空チャンバ8に供給するために、主真空チャンバ8の外側に機械式チョッパーまたは電気偏向手段を配置して使用することができる。気化の少ない液体については、ポンプの容量を増大することで十分である。
マによるX線発生に使用することができる。
3 レーザビーム
7,10,14 ターゲット発生手段
13 集光手段
17 ターゲット
Claims (11)
- レーザ誘起プラズマ放射によりX線放射線または極紫外線放射線を発生するための方法であって、少なくとも1つのターゲット(17)を発生させるとともに、少なくとも1つのパルスレーザビーム(3)を前記ターゲット(17)に集光させて前記プラズマを発生させる方法において、
前記ターゲット(17)は、ノズル(10)を通して液体を圧力の作用で圧送することによって噴流の形態で発生され、前記ターゲット(17)は、気化によって液滴が形成されないように凍結されて空間的に連続した部分を含む固体の形態となり、かつ、前記レーザビーム(3)は、このように凍結された噴流の空間的に連続した部分に集光されることを特徴とする方法。 - 前記噴流のターゲット(17)は、その直径が1〜100μmであるように発生される、請求項1記載の方法。
- 接触リソグラフィーに適した0.8〜2nmの範囲の波長のX線放射線を発生するよう、弗素含有液体を使用して前記ターゲット(17)を発生する、請求項1記載の方法。
- 少なくとも1つのレーザビーム(3)を発生するための少なくとも1つのレーザ(1)と、少なくとも1つのターゲット(17)を発生するためのターゲット発生手段(7,10,14)と、前記レーザビーム(3)を前記ターゲット(17)に集光させて前記プラズマを発生させるための集光手段(13)とを備えた、レーザ誘起プラズマ放射によりX線放射線または極紫外線放射線を発生するための装置において、
前記ターゲット発生手段(7,10,14)は、ノズル(10)を通して液体を圧力の作用で圧送することによって前記ターゲット(17)を噴流の形態で発生させるように構成され、前記装置は、前記ターゲット(17)が気化によって液滴が形成されないように凍結されて空間的に連続した部分を含む固体の形態となるように構成され、かつ、前記集光手段(13)は、このように凍結された噴流の空間的に連続した部分に前記レーザビーム(3)を集光させるように構成されていることを特徴とする装置。 - 前記ターゲット発生手段(7,10,14)は、1〜100μmの直径を持つ前記噴流のターゲット(17)を発生させる、請求項4記載の装置。
- 前記液体は接触リソグラフィーに適した0.8〜2nmの範囲の波長のX線放射線をプラズマの状態で発生するための弗素含有液体であり、前記ターゲット(17)上での前記レーザビーム(3)の集光と関連して露光ステーション(18)がさらに配置されている、請求項4に記載の装置。
- X線顕微鏡検査に使用される、請求項4又は5記載の装置の使用法。
- 近接リソグラフィーに使用される、請求項4乃至6のいずれか記載の装置の使用法。
- 極紫外線投影リソグラフィーに使用される、請求項4又は5記載の装置の使用法。
- 光電子分光法に使用される、請求項4又は5記載の装置の使用法。
- X線螢光に使用される、請求項4又は5記載の装置の使用法。
Applications Claiming Priority (1)
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SE9601547A SE510133C2 (sv) | 1996-04-25 | 1996-04-25 | Laser-plasma röntgenkälla utnyttjande vätskor som strålmål |
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JP53800397A Division JP3553084B2 (ja) | 1996-04-25 | 1997-04-25 | X線放射線または極紫外線放射線を発生するための方法および装置 |
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JP2004235158A JP2004235158A (ja) | 2004-08-19 |
JP3943089B2 true JP3943089B2 (ja) | 2007-07-11 |
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JP53800397A Expired - Fee Related JP3553084B2 (ja) | 1996-04-25 | 1997-04-25 | X線放射線または極紫外線放射線を発生するための方法および装置 |
JP2004036569A Expired - Fee Related JP3943089B2 (ja) | 1996-04-25 | 2004-02-13 | X線放射線または極紫外線放射線を発生するための方法および装置 |
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JP53800397A Expired - Fee Related JP3553084B2 (ja) | 1996-04-25 | 1997-04-25 | X線放射線または極紫外線放射線を発生するための方法および装置 |
Country Status (7)
Country | Link |
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US (1) | US6002744A (ja) |
EP (1) | EP0895706B2 (ja) |
JP (2) | JP3553084B2 (ja) |
AU (1) | AU2720797A (ja) |
DE (2) | DE69722609T3 (ja) |
SE (1) | SE510133C2 (ja) |
WO (1) | WO1997040650A1 (ja) |
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1996
- 1996-04-25 SE SE9601547A patent/SE510133C2/sv not_active IP Right Cessation
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1997
- 1997-04-25 WO PCT/SE1997/000697 patent/WO1997040650A1/en active IP Right Grant
- 1997-04-25 JP JP53800397A patent/JP3553084B2/ja not_active Expired - Fee Related
- 1997-04-25 EP EP97921060A patent/EP0895706B2/en not_active Expired - Lifetime
- 1997-04-25 DE DE69722609T patent/DE69722609T3/de not_active Expired - Lifetime
- 1997-04-25 AU AU27207/97A patent/AU2720797A/en not_active Abandoned
- 1997-04-25 DE DE0895706T patent/DE895706T1/de active Pending
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1998
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Also Published As
Publication number | Publication date |
---|---|
EP0895706B1 (en) | 2003-06-04 |
SE510133C2 (sv) | 1999-04-19 |
DE69722609D1 (de) | 2003-07-10 |
SE9601547L (sv) | 1997-10-26 |
DE895706T1 (de) | 2001-06-13 |
SE9601547D0 (sv) | 1996-04-25 |
AU2720797A (en) | 1997-11-12 |
DE69722609T2 (de) | 2004-04-29 |
DE69722609T3 (de) | 2009-04-23 |
JP2004235158A (ja) | 2004-08-19 |
EP0895706A1 (en) | 1999-02-10 |
JP2000509190A (ja) | 2000-07-18 |
WO1997040650A1 (en) | 1997-10-30 |
US6002744A (en) | 1999-12-14 |
JP3553084B2 (ja) | 2004-08-11 |
EP0895706B2 (en) | 2008-08-06 |
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