JP2019105860A - 薄膜スペクトル純度フィルタコーティングとともに画像センサを使用するeuv化学線レチクル検査システム - Google Patents
薄膜スペクトル純度フィルタコーティングとともに画像センサを使用するeuv化学線レチクル検査システム Download PDFInfo
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- 239000010409 thin film Substances 0.000 title claims abstract description 87
- 230000003595 spectral effect Effects 0.000 title claims abstract description 53
- 238000007689 inspection Methods 0.000 title claims abstract description 34
- 238000000576 coating method Methods 0.000 title description 23
- 239000011248 coating agent Substances 0.000 title description 19
- 238000009501 film coating Methods 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 14
- 239000004065 semiconductor Substances 0.000 claims abstract description 9
- 239000000758 substrate Substances 0.000 claims abstract description 9
- 239000010410 layer Substances 0.000 claims description 22
- 238000005286 illumination Methods 0.000 claims description 17
- 150000001875 compounds Chemical class 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 8
- 239000010955 niobium Substances 0.000 claims description 8
- 239000002356 single layer Substances 0.000 claims description 8
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229910052710 silicon Inorganic materials 0.000 claims description 6
- 239000010703 silicon Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 claims description 5
- UVGLBOPDEUYYCS-UHFFFAOYSA-N silicon zirconium Chemical compound [Si].[Zr] UVGLBOPDEUYYCS-UHFFFAOYSA-N 0.000 claims description 5
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 4
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 230000002238 attenuated effect Effects 0.000 claims description 4
- 229910052790 beryllium Inorganic materials 0.000 claims description 4
- ATBAMAFKBVZNFJ-UHFFFAOYSA-N beryllium atom Chemical compound [Be] ATBAMAFKBVZNFJ-UHFFFAOYSA-N 0.000 claims description 4
- 229910052796 boron Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- GALOTNBSUVEISR-UHFFFAOYSA-N molybdenum;silicon Chemical compound [Mo]#[Si] GALOTNBSUVEISR-UHFFFAOYSA-N 0.000 claims description 4
- 229910052758 niobium Inorganic materials 0.000 claims description 4
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 claims description 4
- 229910052703 rhodium Inorganic materials 0.000 claims description 4
- 239000010948 rhodium Substances 0.000 claims description 4
- MHOVAHRLVXNVSD-UHFFFAOYSA-N rhodium atom Chemical compound [Rh] MHOVAHRLVXNVSD-UHFFFAOYSA-N 0.000 claims description 4
- 229910052707 ruthenium Inorganic materials 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 4
- 229910052713 technetium Inorganic materials 0.000 claims description 4
- GKLVYJBZJHMRIY-UHFFFAOYSA-N technetium atom Chemical compound [Tc] GKLVYJBZJHMRIY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052727 yttrium Inorganic materials 0.000 claims description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims description 4
- 230000008901 benefit Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 238000010586 diagram Methods 0.000 description 10
- 239000000463 material Substances 0.000 description 8
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- 239000007888 film coating Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 229910017305 Mo—Si Inorganic materials 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 230000008021 deposition Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000001900 extreme ultraviolet lithography Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000005240 physical vapour deposition Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- 229910052724 xenon Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
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- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000001659 ion-beam spectroscopy Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000002346 layers by function Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000001451 molecular beam epitaxy Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
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- 230000005855 radiation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
- G03F1/82—Auxiliary processes, e.g. cleaning or inspecting
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/68—Preparation processes not covered by groups G03F1/20 - G03F1/50
- G03F1/82—Auxiliary processes, e.g. cleaning or inspecting
- G03F1/84—Inspecting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/1462—Coatings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
- H01L27/146—Imager structures
- H01L27/14601—Structural or functional details thereof
- H01L27/14625—Optical elements or arrangements associated with the device
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N21/956—Inspecting patterns on the surface of objects
- G01N2021/95676—Masks, reticles, shadow masks
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
- G03F1/00—Originals for photomechanical production of textured or patterned surfaces, e.g., masks, photo-masks, reticles; Mask blanks or pellicles therefor; Containers specially adapted therefor; Preparation thereof
- G03F1/22—Masks or mask blanks for imaging by radiation of 100nm or shorter wavelength, e.g. X-ray masks, extreme ultraviolet [EUV] masks; Preparation thereof
- G03F1/24—Reflection masks; Preparation thereof
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electromagnetism (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Exposure Of Semiconductors, Excluding Electron Or Ion Beam Exposure (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
- Optical Filters (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Analysing Materials By The Use Of Radiation (AREA)
Abstract
Description
本出願は、2011年3月16日に出願された米国仮特許出願第61/453,493号の優先権を主張し、かかる出願は参照することにより本明細書に組み込まれる。
Claims (25)
- 極端紫外線画像センサと、
前記極端紫外線画像センサの裏側に窪みが形成されて薄膜化された半導体基板上に配置された、選択されたスペクトル特性を有する薄膜コーティングスペクトル純度フィルタと、
を備え、前記極端紫外線画像センサは、前記薄膜コーティングスペクトル純度フィルタの支持構造として機能する
極端紫外線レチクル検査装置。 - 前記薄膜コーティングスペクトル純度フィルタが、検査中のレチクルと前記画像センサとの間の反射光路内での位置選定のために構成され、放電生成プラズマ光源と検査中の前記レチクルとの間の入射光路での位置選定のために構成される第2のスペクトル純度フィルタをさらに備える、請求項1に記載の装置。
- 前記選択されたスペクトル特性が、実質的に13.5nmでの帯域通過特性を含む、請求項1に記載の装置。
- 前記スペクトル特性が、少なくとも13.5nm、および13.5nmでの名目透過率の90%以下に減衰された100から1200nmのスペクトル範囲の少なくとも一部を含む帯域通過特性をさらに含む、請求項3に記載の装置。
- 前記スペクトル特性が、13.5nmでの前記名目透過率の90%以下の前記100から1200nmのスペクトル範囲の減衰をさらに含む、請求項4に記載の装置。
- 前記薄膜コーティングが単一層薄膜を備える、請求項1に記載の装置。
- 前記薄膜コーティングが多層薄膜を備える、請求項1に記載の装置。
- 前記薄膜コーティングが、ジルコニウム(Zr)またはケイ素−ジルコニウム(Si/Zr)の内の1つまたは複数を備える、請求項1に記載の装置。
- 前記薄膜コーティングが、実質的に10から100nmの間の厚さを有する、請求項8に記載の装置。
- 前記薄膜コーティングが、ベリリウム(Be)、ホウ素(B)、マグネシウム(Mg)、アルミニウム(Al)、ケイ素(Si)、イットリウム(Y)、ニオブ(Nb)、モリブデン(Mo)、テクネチウム(Tc)、ルテニウム(Ru)、ロジウム(Ru)の内の1つまたは複数を備える、請求項1に記載の装置。
- 前記薄膜コーティングが、モリブデン−ケイ素(Mo/Si)、炭化ケイ素(SiC)または窒化ケイ素(Si3N4)の内の1つまたは複数を備える、請求項1に記載の装置。
- 極端紫外線光源と、
検査用のレチクルを受け取るためのレチクル照明位置と、
極端紫外線画像センサと、
前記極端紫外線光源と前記レチクル照明位置との間に設置される照明光学系のセットと、
前記レチクル照明位置と前記画像センサとの間に設置される対物レンズ光学部品のセットと、
前記極端紫外線画像センサの裏側に窪みが形成されて薄膜化された半導体基板上に配置された、選択されたスペクトル特性を有する薄膜コーティングスペクトル純度フィルタと、
を備え、前記極端紫外線画像センサは、前記薄膜コーティングスペクトル純度フィルタの支持構造として機能する
極端紫外線レチクル検査システム。 - 前記極端紫外線光源が、放電生成プラズマ(DPP)光源またはレーザ生成プラズマ(LPP)光源の内の少なくとも1つを備える、請求項12に記載のシステム。
- 前記スペクトル特性が、実質的に13.5nmでの帯域通過特性を含む、請求項12に記載のシステム。
- 前記スペクトル特性が、少なくとも13.5、および13.5nmでの名目透過率の90%以下に減衰された100から1200nmのスペクトル範囲の少なくとも一部を含む帯域通過特性をさらに含む、請求項14に記載のシステム。
- 前記スペクトル特性が、13.5nmでの前記名目透過率の90%以下の前記100から1200nmのスペクトル範囲の減衰をさらに含む、請求項15に記載のシステム。
- 前記薄膜コーティングが、単一元素から本質的に成る単一層から成る、請求項12に記載のシステム。
- 前記薄膜コーティングが、単一化合物から本質的に成る単一層から成る、請求項12に記載のシステム。
- 前記薄膜コーティングが複数の層から成り、各層が、単一元素または単一化合物から本質的に成る、請求項12に記載のシステム。
- 前記薄膜コーティングが、ジルコニウム(Zr)またはケイ素−ジルコニウム(Si/Zr)の内の1つまたは複数を備える、請求項12に記載のシステム。
- 前記薄膜コーティングが、実質的に10nmと100nmとの間の厚さを有する、請求項20に記載のシステム。
- 前記薄膜コーティングが、ベリリウム(Be)、ホウ素(B)、マグネシウム(Mg)、アルミニウム(Al)、ケイ素(Si)、イットリウム(Y)、ニオブ(Nb)、モリブデン(Mo)、テクネチウム(Tc)、ルテニウム(Ru)、ロジウム(Ru)の内の1つまたは複数を備える、請求項12に記載のシステム。
- 前記薄膜コーティングが、モリブデン−ケイ素(Mo/Si)、炭化ケイ素(SiC)または窒化ケイ素(Si3N4)の内の1つまたは複数を備える、請求項12に記載のシステム。
- 前記極端紫外線光源と前記レチクル照明位置との間に位置付けられる第2のスペクトル純度フィルタをさらに備える、請求項12に記載のシステム。
- 極端紫外線レチクルを検査するための方法であって、
極端紫外線光源を活用して極端紫外線光を生成することと、
照明光学系のセットを介して前記極端紫外線光源からレチクルに前記極端紫外線光を導くことと、
対物レンズ光学部品のセットを介して前記レチクルから反射される極端紫外線光を極端紫外線画像センサに向かって導くことと、
前記極端紫外線画像センサの裏側に窪みが形成されて薄膜化された半導体基板上に配置された薄膜コーティングを活用して前記レチクルから反射される前記極端紫外線光の一部をフィルタ処理することであって、前記極端紫外線画像センサは、前記薄膜コーティングスペクトル純度フィルタの支持構造として機能し、前記薄膜コーティングが選択されたスペクトル特性を有する、フィルタ処理することと、
前記画像センサを活用して前記薄膜コーティングによってフィルタ処理される前記光の一部を受け取ることと
を含む方法。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161453493P | 2011-03-16 | 2011-03-16 | |
US61/453,493 | 2011-03-16 | ||
US13/419,042 US8916831B2 (en) | 2011-03-16 | 2012-03-13 | EUV actinic reticle inspection system using imaging sensor with thin film spectral purity filter coating |
US13/419,042 | 2012-03-13 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2017140907A Division JP2017219851A (ja) | 2011-03-16 | 2017-07-20 | 薄膜スペクトル純度フィルタコーティングとともに画像センサを使用するeuv化学線レチクル検査システム |
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JP2019105860A true JP2019105860A (ja) | 2019-06-27 |
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WO2012125647A3 (en) | 2012-12-27 |
WO2012125647A2 (en) | 2012-09-20 |
JP2017219851A (ja) | 2017-12-14 |
JP2014514736A (ja) | 2014-06-19 |
KR101793316B1 (ko) | 2017-11-02 |
KR20140019378A (ko) | 2014-02-14 |
US20120235049A1 (en) | 2012-09-20 |
US8916831B2 (en) | 2014-12-23 |
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