JP2020530589A - リソグラフィ及び他の用途において極端紫外線と共に使用するための材料、コンポーネント、及び方法 - Google Patents
リソグラフィ及び他の用途において極端紫外線と共に使用するための材料、コンポーネント、及び方法 Download PDFInfo
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Classifications
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- G21K1/00—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating
- G21K1/06—Arrangements for handling particles or ionising radiation, e.g. focusing or moderating using diffraction, refraction or reflection, e.g. monochromators
- G21K1/062—Devices having a multilayer structure
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- G—PHYSICS
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- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
- G02B5/085—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal
- G02B5/0858—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal the reflecting layers comprising a single metallic layer with one or more dielectric layers
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
- C23C28/40—Coatings including alternating layers following a pattern, a periodic or defined repetition
- C23C28/42—Coatings including alternating layers following a pattern, a periodic or defined repetition characterized by the composition of the alternating layers
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
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Abstract
Description
本出願は、2017年8月8に出願され、発明の名称が「Materials,Components,and Methods for use With Extreme Ultraviolet Radiation in Lithography and other Components」である米国特許仮出願第62/542734号明細書の優先権を主張するものであり、その全内容は、本明細書に援用される。本出願は、2013年1月18日に出願された米国特許出願第13/745618号明細書及び2016年6月30日に出願された米国特許出願第15/198291号明細書に関し、これらは何れも、その全内容が示されているかのごとく、参照により本明細書に援用される。
反射コーティングの典型的な実施形態を図4に示す。この構成は、基板、局所的には溶融シリカ、ガラス、クロム、シリコン、石英、1D多層ブラッグ反射コーティング、例えばMo−Si、Nb−Si、W−Si、Ru−Si、又は本発明で述べる、若しくは参照により援用される米国特許出願第15/198291号明細書に見出される他の材料、を有する。多層構造は、交互材料の多くの層から成り、各一式の材料は、二層ペアを形成している。所望に応じて、層又は二層構造のスタックの最上部に、キャップ層又は保護層があり、それは、ルテニウム又は他の貴金属から製造されたコーティングである。
以下の構成は、透過コーティング、膜、又はペリクルの一部として、光学素子に用いられ得る。それはまた、ミラー又はマスク上の反射コーティングにも用いられ得る。
図5は、本発明に従うブラッグ反射鏡500を示す。図5は、2つの例としての実施形態を示す。1つの実施形態501では、多層スタック511が、基板502の上に堆積されている。例501では、各二層ペア509は、Siの層とMxHyCz材料の層とを有する。キャップ層515が、最上部の二層ペアを保護するために形成されていてよい。例2の502では、各二層ペア509は、Moの層とMxHyCz材料の層とを有する。キャップ層515が、最上部の二層ペアを保護するために形成されていてよい。なお別の例(図示せず)では、二層ペアは、MxHyCz材料の第一の層を有してよく、第二の層は、層1に用いられたものとは異なる比を有する異なるMxHyCz材料であってよい。
本発明は、リソグラフィ、イメージング及び印刷のシステム及び設備に関連する装置、並びにそれらのコンポーネント及びそれらの中の素子におけるコーティングの使用を含む。これは、光源、スキャナーツール、検査ツール、計測、及び製造ツールを含む。
Claims (21)
- 光学素子のための多層ブラッグ反射コーティングであって、前記光学素子は、UV、DUV、又はEUV帯域幅でのターゲット波長を操作する光学システムで使用のためのものであり、前記コーティングは:
基板と;
多層スタックを形成する二層ペアの繰り返しセットであって、各二層ペアは、さらに:
第一の層;及び
比MxCyHzの炭素、H族元素、及び金属で形成された層、
を備えた、二層ペアの繰り返しセットと;
保護層又はキャップ層と、
を備え、並びに、
x≧0、y≧0、及びz≧0であり、x=y=z=0、及びx=1、y=z=0は除く、
多層ブラッグ反射コーティング。 - 前記第一の層が、比MxCyHzの炭素、H族元素、及び金属で形成され、並びにx≧0、y≧0、及びz≧0であり、x=y=z=0、及びx=1、y=z=0は除く、請求項1に記載のコーティング。
- 前記H族元素が、ヘリウム、水素、ネオン、又は元素ガスからの原子である、請求項1に記載のコーティング。
- 前記金属(M)が、元素周期律表の第4、5、又は6行から選択される金属である、又はモリブデン、ニオブ、ルテニウム、ジルコニウム、テクネチウム、白金、パラジウム、金、若しくはニッケルの何れかである、請求項1に記載のコーティング。
- 前記炭素(C)及び前記水素(H)が、炭化水素、炭素化物、水素化物、カルベン、又は水素及び炭素の有機金属複合体である、請求項1に記載のコーティング。
- 前記コーティングが、前記ターゲット波長においてMo−Si多層コーティングよりも広いスペクトル帯域幅を前記光学素子に与える、請求項1に記載のコーティング。
- 前記コーティングが、前記ターゲット波長においてMo−Si多層コーティングよりも広い角度帯域幅を前記光学素子に与える、請求項1に記載のコーティング。
- 前記コーティングが、フォトマスク、ミラー、レンズ、フィルター、カバー層、キャップ層、基板、フィルム、ペリクル、反射鏡、検出器、集光器の層である、又は光源に用いられる、請求項1に記載のコーティング。
- 前記第一の層が、Siである、請求項1に記載のコーティング。
- 光学素子のための反射コーティング又は透過コーティングであって、前記光学素子は、UV、DUV、又はEUV帯域幅でのターゲット波長を操作する光学システムでの使用のためであり、前記コーティングは:
二次元以上で構築されたコーティングに用いられる組み合わせ材料MxCyHz;
膜又は基板、
を備え、及び、
x=y=z=0は除外される、
反射コーティング又は透過コーティング。 - 前記炭素(C)及び前記H族元素が、炭化水素、炭素化物、水素化物、カルベン、又は水素及び炭素の有機金属複合体である、請求項10に記載のコーティング。
- 前記金属原子(M)が、前記炭素(C)又は前記H族元素(H)と、1又は複数のリガンドを用いて結合されている、請求項10に記載のコーティング。
- 前記光学素子が、フォトマスク、ミラー、レンズ、フィルター、カバー層、キャップ層、基板、フィルム、ペリクル、反射鏡、検出器、若しくは集光器である、又は光源に用いられる、請求項10に記載の光学素子。
- 0.1nm〜250nmの範囲内のターゲット波長で操作する光学素子での使用のための材料コーティングを製造するための方法であって:
金属(M)、炭素(C)、及びH族元素(H)を、x≧0、y≧0、及びz≧0である比MxCyHzで組み合わせて、組み合わせ材料を形成すること;
2種類以上のイオンの組み合わせをターゲットに衝突させること;
制御された堆積法を用いて、前記MxCyHz組み合わせ材料を均一に堆積して、層とすること、
を含み、及び、
x=y=z=0は除外される、
方法。 - さらに:
第二の層の材料を提供すること;
2種類以上のイオンの組み合わせを第二のターゲットに衝突させること;及び
前記制御された堆積法を用いて、前記第二の材料を均一に堆積して、多層コーティングのための層ペアとすること、
を含む、請求項14に記載の方法。 - 前記イオンが、アルゴン、窒素、ヘリウム、水素、クリプトン、及びネオンのイオンから成る群より選択される、請求項14に記載の方法。
- 前記H族元素が、ヘリウム、水素、ネオン、又は元素ガスである、請求項14に記載の方法。
- スパッタリング、イオンビーム堆積、PECVD、原子層堆積、イオン支援堆積、電子ビーム堆積、化学蒸着、熱蒸着、イオン注入、又は分子ビームエピタキシなどの制御された堆積法を用いる、請求項14に記載のコーティングを製造するための方法。
- 前記金属(M)が、元素周期律表の第4、5、又は6行から選択される金属である、請求項14に記載の方法。
- 前記光学素子が、フォトマスク、ミラー、レンズ、フィルター、カバー層、キャップ層、基板、フィルム、ペリクル、反射鏡、検出器、若しくは集光器である、又は光源に用いられる、請求項14に記載の方法。
- 0.1nm〜250nmの範囲内のターゲット波長で操作する光学素子での使用のための材料コーティングを製造するための方法であって:
制御された堆積法を用いて、光学素子中の層として遷移金属を堆積すること;
制御された堆積法を用いて、前記光学素子の前記層に炭化水素を堆積すること、
を含み、並びに、
前記制御された堆積は、同時に、及び周囲ガスの存在下で行われる、
方法。
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