JP5324784B2 - 開口部を有する不透明クロム被膜を備えた光学素子およびその作成方法 - Google Patents
開口部を有する不透明クロム被膜を備えた光学素子およびその作成方法 Download PDFInfo
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- JP5324784B2 JP5324784B2 JP2007538080A JP2007538080A JP5324784B2 JP 5324784 B2 JP5324784 B2 JP 5324784B2 JP 2007538080 A JP2007538080 A JP 2007538080A JP 2007538080 A JP2007538080 A JP 2007538080A JP 5324784 B2 JP5324784 B2 JP 5324784B2
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- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 180
- 238000000576 coating method Methods 0.000 title claims abstract description 135
- 239000011248 coating agent Substances 0.000 title claims abstract description 129
- 230000003287 optical effect Effects 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title description 2
- 239000000758 substrate Substances 0.000 claims abstract description 76
- 238000000034 method Methods 0.000 claims abstract description 28
- 238000000151 deposition Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims description 100
- 229910052804 chromium Inorganic materials 0.000 claims description 82
- 150000002500 ions Chemical class 0.000 claims description 37
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 24
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 24
- 229920002120 photoresistant polymer Polymers 0.000 claims description 22
- 238000001312 dry etching Methods 0.000 claims description 14
- 239000000460 chlorine Substances 0.000 claims description 13
- 238000010884 ion-beam technique Methods 0.000 claims description 13
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 12
- 239000001301 oxygen Substances 0.000 claims description 12
- 229910052760 oxygen Inorganic materials 0.000 claims description 12
- 230000001154 acute effect Effects 0.000 claims description 11
- 230000008021 deposition Effects 0.000 claims description 9
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 8
- 229910052801 chlorine Inorganic materials 0.000 claims description 8
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 7
- 238000005566 electron beam evaporation Methods 0.000 claims description 7
- 238000005530 etching Methods 0.000 claims description 7
- 239000010936 titanium Substances 0.000 claims description 7
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052715 tantalum Inorganic materials 0.000 claims description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 claims description 6
- 229910052719 titanium Inorganic materials 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- 238000002207 thermal evaporation Methods 0.000 claims description 4
- 101150036540 Copb1 gene Proteins 0.000 claims description 3
- 229910002367 SrTiO Inorganic materials 0.000 claims description 3
- 229910044991 metal oxide Inorganic materials 0.000 claims description 3
- 150000004706 metal oxides Chemical class 0.000 claims description 3
- 229910052759 nickel Inorganic materials 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
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- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 86
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- 230000015572 biosynthetic process Effects 0.000 description 5
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000008901 benefit Effects 0.000 description 4
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- 239000000203 mixture Substances 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910004298 SiO 2 Inorganic materials 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- XMPZTFVPEKAKFH-UHFFFAOYSA-P ceric ammonium nitrate Chemical compound [NH4+].[NH4+].[Ce+4].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O XMPZTFVPEKAKFH-UHFFFAOYSA-P 0.000 description 2
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- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
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- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000001636 atomic emission spectroscopy Methods 0.000 description 1
- BGTFCAQCKWKTRL-YDEUACAXSA-N chembl1095986 Chemical compound C1[C@@H](N)[C@@H](O)[C@H](C)O[C@H]1O[C@@H]([C@H]1C(N[C@H](C2=CC(O)=CC(O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O)=C2C=2C(O)=CC=C(C=2)[C@@H](NC(=O)[C@@H]2NC(=O)[C@@H]3C=4C=C(C(=C(O)C=4)C)OC=4C(O)=CC=C(C=4)[C@@H](N)C(=O)N[C@@H](C(=O)N3)[C@H](O)C=3C=CC(O4)=CC=3)C(=O)N1)C(O)=O)=O)C(C=C1)=CC=C1OC1=C(O[C@@H]3[C@H]([C@H](O)[C@@H](O)[C@H](CO[C@@H]5[C@H]([C@@H](O)[C@H](O)[C@@H](C)O5)O)O3)O[C@@H]3[C@H]([C@@H](O)[C@H](O)[C@@H](CO)O3)O[C@@H]3[C@H]([C@H](O)[C@@H](CO)O3)O)C4=CC2=C1 BGTFCAQCKWKTRL-YDEUACAXSA-N 0.000 description 1
- 150000001844 chromium Chemical class 0.000 description 1
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- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
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- 238000005457 optimization Methods 0.000 description 1
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- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 238000005240 physical vapour deposition Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Images
Classifications
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- C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
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- 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
- G03F1/60—Substrates
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
- C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
- C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
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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
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- 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
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- G03F7/00—Photomechanical, e.g. photolithographic, production of textured or patterned surfaces, e.g. printing surfaces; Materials therefor, e.g. comprising photoresists; Apparatus specially adapted therefor
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
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- C03C2217/20—Materials for coating a single layer on glass
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- C03C2217/218—V2O5, Nb2O5, Ta2O5
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- C—CHEMISTRY; METALLURGY
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- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2217/00—Coatings on glass
- C03C2217/70—Properties of coatings
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C2218/00—Methods for coating glass
- C03C2218/30—Aspects of methods for coating glass not covered above
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- C03C2218/328—Partly or completely removing a coating
- C03C2218/33—Partly or completely removing a coating by etching
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133509—Filters, e.g. light shielding masks
- G02F1/133512—Light shielding layers, e.g. black matrix
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
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- General Physics & Mathematics (AREA)
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Description
透過率(%) 光学濃度(OD)
100 0
10 1
1 2
0.1 3
光が通過しなければならない開口部に関しては、光の透過率が100%またはできる限り100%に近くなるように、ODはゼロまたはできる限りゼロに近くすべきである。
204,310 基板
206,322 第1層
208,324 第2層
210,326 第3層
300,400 ウインドウ/光学素子
330 鋭角
450 ホルダ
Claims (17)
- 基板と、
3以上の光学濃度を有するとともに、前記基板の表面上に形成された不透明クロム被膜であって、エッチングされて内部に開口部を形成した不透明クロム被膜とを備えた物品であって、
前記開口部内のクロムは検出可能限界未満であり、前記開口部を画成する前記クロム皮膜のエッジ部が10°から15°未満の鋭角をもって傾斜していることを特徴とする光学素子。 - 前記不透明クロム被膜が、クロムを含む第1層と、酸化クロムを含む第2層と、クロムを含む第3層とを備えていることを特徴とする請求項1記載の光学素子。
- 前記第1層の厚さが10nm未満であり、かつ該第1層のクロム含有量が50%を超えていることを特徴とする請求項2記載の光学素子。
- 前記第2層の厚さが約30から52nmまでの範囲内にあり、かつ該第2層の酸素含有量が35から60原子%までの範囲内にあることを特徴とする請求項2記載の光学素子。
- 前記第3層の厚さが少なくとも90nmであり、かつ該第3層がほぼ原子80%を超えるクロム含有量を有し、該第3層は、堆積時にイオンビーム・アシストを用いることによって生成された緻密化された層であることを特徴とする請求項3記載の光学素子。
- 前記不透明クロム被膜が3.8以上の光学濃度を有することを特徴とする請求項1記載の光学素子。
- 前記被膜がさらに第4層を備え、該第4層が酸化クロムであり、前記被膜がエッチングされて該被膜内部に開口部を形成し、前記第4層が緻密化された層であり、該緻密化は前記第3層の堆積時においてイオンビーム・アシストを用いることによる結果であり、該イオンビームは、50〜600ボルトの範囲内のイオンエネルギーと0.17〜0.4mA/cm2の範囲内の電流密度とを有することを特徴とする請求項2記載の光学素子。
- 頂面および底面を有する光透過性基板と、該基板の頂面および底面の少なくとも一方上の不透明被膜と、光が前記基板に入射しかつ該基板を透過するのを可能にする前記被膜内の開口部とを有する、ウインドウ/光学素子を形成する方法であって、
前記基板の一方の面または両面に、選択された厚さを有するクロム層を堆積させ、この場合、該堆積を、検出不能のイオン・アシストを伴って行ない、
前記クロム層の頂面上に、選択された厚さを有する酸化クロムからなる層を堆積させ、
該酸化クロム層の頂面上に、選択された厚さを有するクロム層を堆積させ、
該クロム層の頂面上にネガ型フォトレジスト材料を配置し、
前記開口部の領域を覆うマスクの使用によって前記フォトレジストをパタン化し、かつ前記マスクされたフォトレジストを露光し、これによりマスクされていないフォトレジスト材料をポリマー化し、
前記ポリマー化されていないフォトレジストを剥ぎ取って、その下にあるクロム/酸化クロム/クロム層を露出させ、
該露出されたクロム/酸化クロム/クロム層の選択された部分をエッチングにより除去し、
前記ポリマー化されたフォトレジストを剥ぎ取り、
洗浄し、これにより、一方の面または両面上の不透明クロム被膜および該被膜内の開口部を備えた基板を提供して、光が前記基板を透過するのを可能にする、
各工程を有してなり、
前記検出不能のイオン・アシストを伴った堆積が、約25ボルト以内のイオンエネルギーと0.04mA/cm2以内の電流密度とをもって前記基板上に堆積される前記クロムを衝突させることを含むことを特徴とする方法。 - 前記エッチングが乾式エッチングであることを特徴とする請求項8記載の方法。
- 前記エッチングが、塩素/酸素プラズマを用いて前記露出された不透明クロム被膜を除去して光学素子を生成させる乾式エッチングであり、前記光学素子においては、前記開口部内のクロムが検出可能限界未満であり、かつ前記開口部の周縁を画成する前記クロム層のエッジ部が、15°未満の鋭角をもって傾斜していることを特徴とする請求項8記載の方法。
- 前記塩素/酸素プラズマは8:2から5:5までの範囲内の塩素/酸素(Cl2/O2)比を有することを特徴とする請求項10記載の方法。
- 前記堆積が、熱蒸着または電子ビーム蒸着によるものである請求項8記載の方法。
- 頂面および底面を有しかつ光透過性である基板と、
該基板の頂面および底面の一方または双方上の不透明被膜であって、一つの面のエッジから面の中心に向かって延び、かつそこを通って光が前記基板を透過し得る開口部を画成する不透明被膜と、
前記基板の周囲および前記頂面から前記底面までを囲み、かつ該基板のエッジから一つの面の中心に向かって延びるが、該基板上の前記不透明被膜を完全に覆うことはないハウジングと、
前記不透明被膜と前記ハウジングとの間に介在する封着材料とを備え、
前記開口部の周縁を画成する前記不透明被膜のエッジ部が前記面に対して10°から15°未満の鋭角をなして傾斜していることを特徴とする光学素子。 - 前記被膜が3層の被膜であり、該3層の被膜は、
クロム、チタン、タンタルおよびアルミニウムからなる材料の群から選択された、前記基板に隣接した第1層と、
CrOX,SrTiOX,CoPb,CoMnOX,CoMnFeOX,MnFeOXおよび当業者に知られているその他の酸化物からなる群から選択された黒色金属酸化物である、前記第1層の頂面上の第2層と、
金属アルミニウム、ニッケル、チタン。タンタルおよびクロムからなる群から選択された金属材料である、前記第2層の頂面上の第3層と、
を含むことを特徴とする請求項13記載の光学素子。 - 前記第1層がクロムであることを特徴とする請求項14記載の光学素子。
- 前記第2層が酸化クロムであることを特徴とする請求項14記載の光学素子。
- 前記第3層がクロムであることを特徴とする請求項14記載の光学素子。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
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US10/971,611 US7459095B2 (en) | 2004-10-21 | 2004-10-21 | Opaque chrome coating suitable for etching |
US10/971,611 | 2004-10-21 | ||
US11/198,712 | 2005-08-05 | ||
US11/198,712 US7575798B2 (en) | 2004-10-21 | 2005-08-05 | Optical element with an opaque chrome coating having an aperture and method of making same |
PCT/US2005/037954 WO2006047314A2 (en) | 2004-10-21 | 2005-10-20 | Optical element with an opaque chrome coating having an aperture and method of making same |
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JP2008517862A JP2008517862A (ja) | 2008-05-29 |
JP5324784B2 true JP5324784B2 (ja) | 2013-10-23 |
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EP (1) | EP1802452B1 (ja) |
JP (1) | JP5324784B2 (ja) |
KR (1) | KR101333864B1 (ja) |
WO (1) | WO2006047314A2 (ja) |
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US7465681B2 (en) * | 2006-08-25 | 2008-12-16 | Corning Incorporated | Method for producing smooth, dense optical films |
JPWO2009123166A1 (ja) * | 2008-03-31 | 2011-07-28 | Hoya株式会社 | フォトマスクブランクおよびその製造方法 |
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JPS5323277A (en) | 1976-08-14 | 1978-03-03 | Konishiroku Photo Ind Co Ltd | Photomasking material and photomask |
JPS57104141A (en) * | 1980-12-22 | 1982-06-29 | Dainippon Printing Co Ltd | Photomask and photomask substrate |
US5230971A (en) | 1991-08-08 | 1993-07-27 | E. I. Du Pont De Nemours And Company | Photomask blank and process for making a photomask blank using gradual compositional transition between strata |
JPH08190091A (ja) | 1995-01-11 | 1996-07-23 | Aneruba Kk | 液晶ディスプレイ用薄膜基板及びこの薄膜基板を使用した液晶ディスプレイ並びに液晶ディスプレイ用薄膜基板の作成装置 |
US6013409A (en) * | 1996-09-10 | 2000-01-11 | 3M Innovative Properties Company | Dry peel-apart imaging process |
US6406818B1 (en) * | 1999-03-31 | 2002-06-18 | Photronics, Inc. | Method of manufacturing photomasks by plasma etching with resist stripped |
KR100603842B1 (ko) * | 2000-02-18 | 2006-07-24 | 엘지.필립스 엘시디 주식회사 | 확인용 인식마크를 포함하는 컬러필터 |
US6635394B2 (en) * | 2001-05-31 | 2003-10-21 | Macronix International Co., Ltd. | Three dimensional mask |
US6667837B1 (en) * | 2002-01-30 | 2003-12-23 | Raytheon Company | Method and apparatus for configuring an aperture edge |
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2005
- 2005-10-20 KR KR1020077011402A patent/KR101333864B1/ko active IP Right Grant
- 2005-10-20 EP EP05811945.4A patent/EP1802452B1/en not_active Expired - Fee Related
- 2005-10-20 JP JP2007538080A patent/JP5324784B2/ja not_active Expired - Fee Related
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WO2006047314A2 (en) | 2006-05-04 |
KR20070084382A (ko) | 2007-08-24 |
EP1802452A2 (en) | 2007-07-04 |
EP1802452B1 (en) | 2013-12-25 |
KR101333864B1 (ko) | 2013-11-27 |
JP2008517862A (ja) | 2008-05-29 |
WO2006047314A3 (en) | 2006-09-28 |
EP1802452A4 (en) | 2010-09-22 |
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