WO2004059384A1 - リソグラフィーマスクブランク - Google Patents
リソグラフィーマスクブランク Download PDFInfo
- Publication number
- WO2004059384A1 WO2004059384A1 PCT/JP2003/016561 JP0316561W WO2004059384A1 WO 2004059384 A1 WO2004059384 A1 WO 2004059384A1 JP 0316561 W JP0316561 W JP 0316561W WO 2004059384 A1 WO2004059384 A1 WO 2004059384A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- thin film
- nitrogen
- phase shift
- film
- mask blank
- Prior art date
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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
- G03F1/26—Phase shift masks [PSM]; PSM blanks; Preparation thereof
- G03F1/32—Attenuating PSM [att-PSM], e.g. halftone PSM or PSM having semi-transparent phase shift portion; Preparation thereof
-
- 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
- G03F1/54—Absorbers, e.g. of opaque materials
- G03F1/58—Absorbers, e.g. of opaque materials having two or more different absorber layers, e.g. stacked multilayer absorbers
Definitions
- the present invention provides a photomask, an electron beam mask, and the like for use in manufacturing a semiconductor device and the like.
- the formation of a transfer pattern in the manufacture of a semiconductor device is performed, for example, by irradiating exposure light through a photomask (reticle).
- a photomask having a light-shielding film pattern formed on a transparent substrate has been conventionally used.
- a chromium-based material chromium alone, chromium containing nitrogen, oxygen, carbon, or the like, or a laminated film of these material films.
- phase shift masks have been put to practical use as ones that can improve the resolution of a transfer pattern.
- Various types of phase shift masks (Levenson type, auxiliary pattern type, self-aligned type, etc.) are known.
- One of them is a halftone phase shift mask suitable for transferring high-resolution patterns of holes and dots.
- This halftone type phase shift mask has a light semi-transmissive film pattern having a phase shift amount of about 180 ° formed on a transparent substrate, and the light semi-transmissive film is formed as a single layer. Some are formed and others are formed in multiple layers.
- Japanese Patent No. 2966639 discloses a light semi-transmissive film pattern formed of a thin film made of a material mainly composed of metal such as molybdenum, silicon and nitrogen.
- the light semi-transmissive film made of such a material not only can control a predetermined phase shift amount and a predetermined transmittance with a single layer, but also has excellent acid resistance and light resistance.
- Photomasks are generally cleaned using a sulfuric acid-based cleaning agent in the final step. It is considered that sulfuric acid or sulfate ions derived from the sulfuric acid-based cleaning agent used in the cleaning step often remains on the photomask after cleaning. For this reason, it is considered that the reaction between the sulfate ion and the ammonium ion generated for some reason is promoted by laser irradiation as a cause of the generation of the precipitate.
- the wavelength of the exposure light source (exposure light wavelength) has changed from the current KrF excimer laser (248 nm) to an ArF excimer laser (193 nm).
- the wavelength is getting shorter.
- a short wavelength exposure light source such as an ArF excimer laser
- the laser output becomes even higher. For this reason, there is a problem that the formation of precipitates is more easily promoted and the generation of foreign substances becomes more remarkable.
- the sources of ammonium ions are thought to be substances or deposits from the atmosphere or from the pellicle.
- a material containing nitrogen for the thin film used for the photomask as described above it was found that those containing nitrogen in the thin film had more ammonium ions on the film surface than the thin film containing no nitrogen. (NH4 +) was found to be abundant. Therefore, it is considered that the film containing nitrogen in the thin film may contribute to the precipitation of ammonium sulfate which may be a foreign matter defect.
- the present invention has been made in view of the above-mentioned problems of the related art, and an object of the present invention is to provide a method capable of reducing the generation of ammonium ions due to the constituent components of a thin film. It is to provide a lithographic mask and a lithographic mask blank from which such a lithographic mask can be manufactured.
- Still another object of the present invention is to produce a halftone phase shift mask capable of reducing the generation of ammonium ions due to a component of a thin film, and to manufacture such a halftone phase shift mask.
- the object of the present invention is to provide a halftone type phase shift mask blank that can be used. Disclosure of the invention
- the present invention has the following aspects.
- a lithographic mask blank used as a material for manufacturing a lithographic mask wherein the lithographic mask blank has at least one thin film having a desired function on a substrate, wherein the blank is a thin film containing nitrogen as the thin film Forming an ammonium ion formed on the nitrogen-containing thin film or at least on a surface portion of the nitrogen-containing thin film to prevent generation of ammonium ions exposed to the surface when the lithography mask is manufactured. It has at least a film formation preventing layer.
- the ammonium ion generation preventing layer is a thin film having a smaller nitrogen content than the nitrogen-containing thin film.
- the ammonium ion generation preventing layer is formed by heat-treating the nitrogen-containing thin film.
- a photomask is manufactured using the photomask plank according to any of the first to third aspects.
- Halftone type mask used as a material for manufacturing halftone type phase masks A phase shift mask blank, comprising: a halftone phase shift mask blank having, on a substrate, a single- or multi-layer light semi-transmissive film having at least a desired transmittance and a phase shift amount.
- a thin film containing nitrogen as a thin film constituting the permeable film and a thin film formed on the nitrogen-containing thin film or at least on a surface portion of the nitrogen-containing thin film. It has at least an ammonium ion generation preventing layer for preventing generation of exposed ammonium ions.
- the ammonium ion generation preventing layer is a thin film having a smaller nitrogen content than the nitrogen-containing thin film.
- the nitrogen-containing thin film contains at least silicon and nitrogen
- the ammonia generation preventing layer contains at least silicon and oxygen
- the ammonium ion generation preventing layer is formed by heat-treating the nitrogen-containing thin film.
- a half-one phase shift mask is manufactured using the half-one phase shift mask blank according to any of the fifth to eighth aspects.
- FIG. 1 is a cross-sectional view for explaining a halftone phase shift mask blank according to Embodiment 1 of the present invention.
- FIG. 2 is a cross-sectional view for explaining a method of manufacturing a halftone phase shift mask blank according to Embodiments 3 and 4 of the present invention.
- FIG. 3 shows the presence / absence of an ammonia generation preventing film in Example 1 and the presence of an ammonium surface prevention film.
- FIG. 4 is a diagram showing a relationship with a monium ion concentration.
- FIG. 4 is a diagram showing the relationship between the heat treatment time performed in Example 3 and the concentration of ammonium ions on the film surface.
- FIG. 5 is a diagram showing the relationship between the heat treatment time performed in Example 4 and the concentration of ammonium ions on the film surface.
- the present inventors have found that, in lithographic mask blanks such as masks and mask blanks, based on the fact that ammonium ions are extracted from a nitrogen-containing thin film whose surface is exposed when a mask is manufactured, ammonia ions are extracted. It was presumed that the formation of palladium ions was caused by nitrogen in the film. Incidentally, it has been found that even in a film containing nitrogen, there is almost no ammonium ion present inside the film, so that the nitrogen component in the thin film involves some alteration on the surface of the film, and the ammonia ion It is considered that ions were generated.
- the formation of ammonium ions on the nitrogen-containing thin film or at least on the surface portion of the nitrogen-containing thin film is performed.
- an ammonium ion generation prevention layer for preventing the formation of ammonium ions is formed.
- the concentration of ammonium ions on the film surface decreases, and even if sulfuric acid or sulfuric acid ions remain in the subsequent washing of the mask blank with sulfuric acid or the sulfuric acid of a photomask manufactured using a mask blank, the exposure is performed.
- the laser irradiation at this time it is possible to suppress the generation of foreign substances due to ammonium ions such as ammonium sulfate.
- the surface subjected to the treatment for preventing the formation of foreign substances caused by ammonium ions such as ammonium sulfate is treated when the concentration of ammonium ions (NH4 +) is measured by an ion chromatography method using pure water extraction or the like.
- NH4 + compared to before The treatment is performed so that the concentration decreases, for example, the NH4 + concentration measured by ion chromatography becomes 20 ng / cm 2 or less, preferably 10 ng / cm 2 or less, and more preferably 5 ng / cm 2 or less.
- the formation of the ammonium ion generation preventing layer is performed so as not to impair the original function of the thin film. Alternatively, it is adjusted so as to have an original function when the ammonium ion generation preventing layer is formed.
- the formation of the ammonium ion generation preventing layer can be performed at the time of manufacturing the mask blank or after the manufacturing, and can also be performed at the time of manufacturing the mask or after the manufacturing.
- the following two methods are typically considered as methods for forming the ammonium ion generation preventing layer.
- At least the outermost surface is a layer in which even if a substance caused by the formation of ammonium ions is present, the layer is difficult to elute or a layer that suppresses the formation of ammonium ions.
- a method of forming a thin film (ammonia ion generation preventing layer) having a lower nitrogen content than a nitrogen-containing thin film there is a method of newly forming such an ammonium ion generation preventing layer on a nitrogen-containing thin film by film formation.
- a thin film having a lower nitrogen content includes a thin film containing substantially no nitrogen.
- the method (2) specifically includes, for example, a heat treatment of a thin film containing nitrogen.
- a heat treatment of a thin film containing nitrogen By performing heat treatment in the atmosphere or an atmosphere containing oxygen such as 02 or C02, or an inert gas atmosphere such as nitrogen or Ar, or a vacuum treatment, the thin film containing nitrogen of the mask blank and its surface layer are thermally perturbed. Receive.
- the photomask surface is modified to a chemically more stable state. This makes it possible to suppress the generation of ammonium ions on the surface of the thin film.
- the heat treatment temperature is preferably 180 ° C. or higher, more preferably 250 or higher.
- the heat treatment time varies depending on the processing temperature and the processing atmosphere.At least, considering that the thermal perturbation is uniformly applied to the photomask blank and the deterioration inside the thin film can be controlled stably, It is preferably at least 5 minutes, preferably at least 10 minutes.
- the heat treatment temperature exceeds 400 ° C, for example, in an active atmosphere containing oxygen, the reaction with the thin film surface may proceed extremely, which may impair the function of the thin film. It is necessary to keep in mind.
- the heat treatment at a high temperature it is preferable to perform the heat treatment in an atmosphere containing no oxygen or having a sufficiently controlled oxygen concentration.
- a method of coexisting a substance for suppressing the generation of ammonium ions by nitrogen into the film together with nitrogen can be considered.
- a substance that suppresses the formation of ammonium ions for example, oxygen is cited.
- oxygen ions or the like are formed on the film surface of a thin film containing nitrogen.
- a method of performing surface treatment such as surface oxidation treatment using heat, plasma, or the like.
- examples of the foreign substance caused by the ammonium ion include ammonium sulfate, an ammonium salt mainly composed of ammonium sulfate, and other ammonium salts.
- a thin film having a desired function in a photomask blank for example, a light shielding film, an antireflection film, an optical half for a halftone type phase shift mask can be used.
- Permeable membranes and the like are used as a thin film having a desired function in a photomask blank. These thin films often correspond to thin films whose surfaces are exposed when a photomask is manufactured.
- a thin film containing nitrogen is formed as a thin film constituting a light semi-transmissive film, and a thin film containing nitrogen is formed on at least a surface portion of the thin film containing nitrogen. And at least an ammonium ion generation preventing layer for preventing generation of ammonium ions whose surface is exposed when the mask is manufactured.
- the nitrogen-containing thin film when the nitrogen-containing thin film is a light semi-transmissive film having a desired transmittance and phase shift amount of a halftone type phase shift mask blank, the nitrogen-containing thin film contains nitrogen.
- This corresponds to a single-layer structure composed of a thin film, or a multi-layer semi-transmissive film in which a nitrogen-containing thin film is formed immediately below the ammonium ion generation preventing layer.
- a material of the light semi-transmissive film having a single-layer structure for example, a material containing silicon and nitrogen, a material containing metal, silicon, and nitrogen, or a material containing oxygen, fluorine, carbon, and hydrogen is selected. And materials containing one or more of these.
- the metal includes one or more metals selected from molybdenum, tantalum, tungsten, chromium, titanium, nickel, palladium, hafnium, zirconium and the like.
- Such a material film can be formed by performing reactive sputtering in an atmosphere using a reactive gas such as silicon or a target made of metal and silicon in an atmosphere using a reactive gas such as nitrogen.
- a reactive gas such as silicon or a target made of metal and silicon in an atmosphere using a reactive gas such as nitrogen.
- the film can also be formed using a target including the above.
- a material film of the light translucent film having a single layer structure obtained by laminating two or more layers, chromium, tantalum, hafnium, magnesium, aluminum, titanium, vanadium, yttrium, zirconium
- a transmittance adjusting layer such as a metal film containing one or more selected from the group consisting of, niobium, molybdenum, tin, lanthanum, tungsten, silicon, etc., and the above-mentioned single-layer material (halftone film) are laminated.
- the light transflective film has a phase difference of about 180 ° and a transmittance of 3 to 40% in order to obtain an effect as a halftone type phase shift film. Is set to the transmittance selected from the range.
- an ammonia generation preventing layer on a material containing metal, silicon, and nitrogen, or a material layer containing one or more kinds selected from oxygen, fluorine, carbon, and hydrogen in these materials Is a material containing one kind selected from the group consisting of silicon, oxygen-containing material, metal, nitrogen (the amount of nitrogen is smaller than that of nitrogen-containing layer), and carbon. You can do it.
- the present invention will be described in more detail with reference to Examples.
- the halftone phase shift mask blank had a transmittance of 5.5% and a phase shift of approximately 180 ° in the KrF excimer laser (wavelength: 248 nm).
- an ammonium ion generation preventing layer 3 (each of which is made of a thin film of oxidized molybdenum and silicon (MoSiO) on the transparent substrate 1 by reactive sputtering (DC sputtering). Then, a film thickness of about 30 angstroms and a thickness of 100 angstroms) were formed to manufacture an eight-tone phase shift mask blank (see FIG. 1 (2)).
- the MoSiN film + MoSio film can be used as a light semi-transmissive film of the halftone type phase shift mask blank.
- Figure 3 shows a sample that was not treated to prevent foreign matter generation due to ammonium ions such as ammonium sulfate (denoted as “none” in the figure) and a sample that was treated to prevent foreign matter generation due to ammonium ions such as ammonium sulfate.
- ammonium ion concentration on the film surface of the sample shown as film thickness in the figure
- the ammonium sulfate on the surface of the film subjected to the ammonium sulfate production prevention treatment is greatly reduced.
- This phase shift mask uses a KrF excimer laser or other pattern-based pattern transfer method for a sample that has been subjected to a process for preventing the formation of foreign particles due to ammonium ions such as ammonium sulfate, since the sample surface has a small amount of ammonium ions. In this case, the generation of foreign matter defects due to ammonium sulfate can be reduced.
- phase shift mask blanks having a semi-transmissive film 2 (thickness of about 800 on guest ports) of 0 SiN) were prepared (see Fig. 1 (1)).
- the halftone phase shift mask blank had a transmittance of 5.5% and a phase shift of about 180 ° with an ArF excimer laser (wavelength 193 nm).
- Molybdenum and silicon Mo S
- Two halftone type phase shift mask blanks having a 1 N) light semi-transmissive film 2 (thickness of about 800 ⁇ ) were prepared.
- the MoS iN film + S i ON film can be used as the light semi-transmissive film of the halftone type phase shift mask blank.
- the ammonium ion concentration on the film surface of this halftone type phase shift mask blank was measured by ion chromatography. As a result, a sample with a thickness of 30 ⁇ was 3.5 ng / cm2 and a film thickness of 100 ⁇ . It was 2.8 ng gZcn ⁇ for the sample of the system.
- a chromium-based light-shielding film was formed on the thin film made of the MoSiO film, a resist film was formed, and a resist pattern was formed by pattern exposure and development.
- the MoSiO film and MoSiN film are etched by dry etching with CF4 + 02 gas. After the resist is stripped, the film is washed with 100% 98% sulfuric acid (H2S04), rinsed with pure water, and phased. A shift mask was obtained.
- This phase shift mask performs pattern transfer by laser irradiation with a KrF excimer laser, etc., since the sample that has been subjected to the process of preventing foreign matter generation due to ammonium ions such as ammonium sulfate has a small amount of ammonium ions on the film surface. In this case, the generation of foreign matter defects due to ammonium sulfate can be reduced.
- the preferred thickness of the ammonia formation preventing layer is preferably 10 on guest ports or more, more preferably 30 on guest rooms or more, from the viewpoint of dramatically reducing the amount of ammonium ions on the film surface. .
- Example 2 In the same manner as in Example 1, a light semi-transmissive film (thickness: about 935 angstroms) of molybdenum and silicon (MoSiN) 2 was formed on the transparent substrate 1 (see FIG. 2 (1 ) See).
- FIG. 4 shows the results of the measurement of the relationship between the heat treatment time and the concentration of ammonium ions on the surface of the film by ion chromatography.
- the amount of ammonium ions is reduced by the heat treatment, especially when the heat treatment time exceeds about 15 minutes. This is presumably because, in this embodiment, the heat perturbation applied to the mask blank from about 15 minutes after the heat treatment uniformly and effectively acted on the entire surface of the thin film.
- Example 2 the same mask processing as in Example 1 was performed to obtain a phase shift mask.
- This phase shift mask has a small amount of ammonium ions on the film surface of the sample that has been subjected to the ammonium sulfate prevention treatment. Therefore, when the pattern is transferred by laser irradiation such as a KrF excimer laser, the foreign matter due to the ammonium sulfate The generation of defects was prevented.
- Example 2 In the same manner as in Example 1, a light translucent film 2 of molybdenum and silicon (MoSIN) nitrided (thickness: about 935 on-guest D-mem) 2 was formed on the transparent substrate 1 (FIG. 2 ( 1) See).
- MoSIN molybdenum and silicon
- a heat treatment 4 was performed at 400 ° C. in a nitrogen atmosphere (see FIG. 2 (2)).
- Fig. 5 shows the results of measurement of the heat treatment time and the concentration of ammonium ions on the film surface by ion chromatography.
- This phase shift mask has a small amount of ammonium ions on the film surface of the sample that has been treated to prevent ammonium sulfate generation. Therefore, when pattern transfer is performed by laser irradiation with a KrF excimer laser, foreign matter defects due to ammonium sulfate was prevented from being generated. Industrial applicability
- a thin film whose surface is exposed when a photomask is manufactured is at least a nitrogen-containing thin film, and the nitrogen-containing thin film is made of ammonium sulfate or the like.
- a photomask blank capable of producing a photomask in which ammonium sulfate is not deposited by laser irradiation can be obtained by having a surface that has been subjected to a treatment for preventing foreign matter generation due to ammonium ions. .
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/525,524 US7781125B2 (en) | 2002-12-26 | 2003-12-24 | Lithography mask blank |
JP2004562909A JP4319989B2 (ja) | 2002-12-26 | 2003-12-24 | リソグラフィーマスクブランク |
DE10393095T DE10393095B4 (de) | 2002-12-26 | 2003-12-24 | Lithografiemaskenrohling |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002-376275 | 2002-12-26 | ||
JP2002376275 | 2002-12-26 |
Publications (1)
Publication Number | Publication Date |
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WO2004059384A1 true WO2004059384A1 (ja) | 2004-07-15 |
Family
ID=32677361
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2003/016561 WO2004059384A1 (ja) | 2002-12-26 | 2003-12-24 | リソグラフィーマスクブランク |
Country Status (5)
Country | Link |
---|---|
US (1) | US7781125B2 (ja) |
JP (1) | JP4319989B2 (ja) |
DE (1) | DE10393095B4 (ja) |
TW (1) | TWI227810B (ja) |
WO (1) | WO2004059384A1 (ja) |
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JP2007206184A (ja) * | 2006-01-31 | 2007-08-16 | Dainippon Printing Co Ltd | フォトマスクおよびその製造方法、並びにパターン転写方法 |
US7585418B2 (en) | 2004-06-25 | 2009-09-08 | Hoya Corporation | Lithographic mask and manufacturing method thereof |
JP2010002816A (ja) * | 2008-06-23 | 2010-01-07 | Shin-Etsu Chemical Co Ltd | フォトマスクブランクの製造方法及びフォトマスクブランク |
WO2010092879A1 (ja) * | 2009-02-12 | 2010-08-19 | Hoya株式会社 | フォトマスクの製造方法 |
JP2010243598A (ja) * | 2009-04-01 | 2010-10-28 | Dainippon Printing Co Ltd | 階調マスクおよび階調マスクの製造方法 |
US8221941B2 (en) | 2008-12-29 | 2012-07-17 | Hoya Corporation | Photomask blank manufacturing method and photomask manufacturing method |
JP2012212180A (ja) * | 2012-07-24 | 2012-11-01 | Shin Etsu Chem Co Ltd | 欠陥の低減方法 |
JPWO2018056033A1 (ja) * | 2016-09-26 | 2018-09-27 | Hoya株式会社 | マスクブランク、位相シフトマスク、位相シフトマスクの製造方法及び半導体デバイスの製造方法 |
WO2019188397A1 (ja) * | 2018-03-26 | 2019-10-03 | Hoya株式会社 | マスクブランク、位相シフトマスク及び半導体デバイスの製造方法 |
WO2022054810A1 (ja) * | 2020-09-08 | 2022-03-17 | 凸版印刷株式会社 | 位相シフトマスクブランク、位相シフトマスク及び位相シフトマスクの製造方法 |
JP2022118976A (ja) * | 2021-02-03 | 2022-08-16 | アルバック成膜株式会社 | マスクブランクス及びフォトマスク |
JP2022118978A (ja) * | 2021-02-03 | 2022-08-16 | アルバック成膜株式会社 | マスクブランクス及びフォトマスク |
JP2022118977A (ja) * | 2021-02-03 | 2022-08-16 | アルバック成膜株式会社 | マスクブランクス及びフォトマスク |
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KR100617389B1 (ko) * | 2005-05-16 | 2006-08-31 | 주식회사 피케이엘 | 헤이즈 방지를 위한 위상편이 마스크 |
JP5535932B2 (ja) * | 2008-10-29 | 2014-07-02 | Hoya株式会社 | フォトマスクブランク、フォトマスク及びその製造方法 |
JP5114367B2 (ja) | 2008-11-21 | 2013-01-09 | Hoya株式会社 | フォトマスクの製造方法及びそのフォトマスクを用いたパターン転写方法 |
JP5762819B2 (ja) * | 2010-05-19 | 2015-08-12 | Hoya株式会社 | マスクブランクの製造方法及び転写用マスクの製造方法、並びにマスクブランク及び転写用マスク |
JP6292581B2 (ja) * | 2014-03-30 | 2018-03-14 | Hoya株式会社 | マスクブランク、転写用マスクの製造方法及び半導体装置の製造方法 |
JP7298556B2 (ja) * | 2020-06-30 | 2023-06-27 | 信越化学工業株式会社 | フォトマスクブランクの製造方法 |
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2003
- 2003-12-24 US US10/525,524 patent/US7781125B2/en active Active
- 2003-12-24 TW TW092136653A patent/TWI227810B/zh not_active IP Right Cessation
- 2003-12-24 JP JP2004562909A patent/JP4319989B2/ja not_active Expired - Fee Related
- 2003-12-24 DE DE10393095T patent/DE10393095B4/de not_active Expired - Fee Related
- 2003-12-24 WO PCT/JP2003/016561 patent/WO2004059384A1/ja active Application Filing
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Also Published As
Publication number | Publication date |
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TWI227810B (en) | 2005-02-11 |
TW200422772A (en) | 2004-11-01 |
US7781125B2 (en) | 2010-08-24 |
DE10393095B4 (de) | 2011-07-07 |
US20050250018A1 (en) | 2005-11-10 |
JP4319989B2 (ja) | 2009-08-26 |
JPWO2004059384A1 (ja) | 2006-04-27 |
DE10393095T5 (de) | 2005-08-25 |
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