WO2009133840A1 - 水反応性Al複合材料、水反応性Al膜、このAl膜の製造方法、及び成膜室用構成部材 - Google Patents
水反応性Al複合材料、水反応性Al膜、このAl膜の製造方法、及び成膜室用構成部材 Download PDFInfo
- Publication number
- WO2009133840A1 WO2009133840A1 PCT/JP2009/058259 JP2009058259W WO2009133840A1 WO 2009133840 A1 WO2009133840 A1 WO 2009133840A1 JP 2009058259 W JP2009058259 W JP 2009058259W WO 2009133840 A1 WO2009133840 A1 WO 2009133840A1
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- WO
- WIPO (PCT)
- Prior art keywords
- film
- water
- reactive
- composite material
- film forming
- Prior art date
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Classifications
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
- C23C4/06—Metallic material
- C23C4/08—Metallic material containing only metal elements
-
- 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
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/18—After-treatment
Definitions
- the present invention relates to a water-reactive Al composite material, a water-reactive Al film, a method for producing the Al film, and a film forming chamber component, and in particular, a water-reactive Al composite material in which In is added to 4NAl or 5NAl,
- the present invention relates to a water-reactive Al film made of this water-reactive Al composite material, a method for producing the Al film, and a film-forming chamber component covered with the Al film.
- a film forming material is provided during the film forming process in the film forming chamber constituent member provided in the apparatus.
- the film forming chamber component for example, a deposition plate for preventing the film from adhering to the inside of the vacuum vessel other than the substrate, a shutter, or a film used only for a predetermined place on the substrate.
- a mask, a tray for transporting a substrate, and the like can be given.
- a film having the same composition as the target thin film (thin film to be formed on the substrate) adheres to these members. These members are usually used repeatedly after removing the adhered film.
- the film that inevitably adheres to these film forming chamber components becomes thicker according to the working time of the film forming process.
- Such an attached film peels off as particles from the film forming chamber component due to the internal stress or stress due to repeated thermal history, adheres to the substrate, and causes film defects. Therefore, the film forming chamber component is removed from the film forming apparatus at a stage where the attached film does not peel off, washed to remove the attached film, and then surface-finished and reused. It is done regularly.
- the deposit on the film is peeled off. It is currently being reused.
- a sandblasting method, a wet etching method using acid or alkali, a peeling method using hydrogen embrittlement such as hydrogen peroxide, and a peeling method using electrolysis are generally performed. It has been broken. In this case, when the deposit is peeled off, the deposition preventing plate is not a little dissolved and damaged, so the number of reuses is limited. Therefore, it is desired to develop a film peeling method that minimizes damage to the deposition preventing plate.
- the concentration of the peeled film in the waste liquid generated in the chemical treatment such as acid or alkali treatment is low, the recovery cost of valuable metals becomes high and it is not profitable. In such a case, the present situation is that it is treated as waste.
- An object of the present invention is to solve the above-mentioned problems of the prior art, and an Al composite material to which In is added that can react and dissolve in an atmosphere containing moisture, an Al film made of this Al composite material, An object of the present invention is to provide a method for producing this Al film and a film forming chamber component covered with this Al film.
- the water-reactive Al composite material of the present invention is characterized in that 2-5 wt% In is added to 4NAl or 5NAl based on Al, and In is uniformly dispersed in Al crystal grains. .
- the Al film obtained from this material easily reacts in an atmosphere containing moisture to generate hydrogen and dissolve.
- the reactivity with water decreases, and if it exceeds 5 wt%, the reactivity with water becomes very high and may react with moisture in the atmosphere.
- a material obtained by adding 2 to 5 wt% In to 4NAl or 5NAl on an Al basis is melted so that the composition is uniform, and the molten material is melted on the substrate surface.
- an Al sprayed film in which In is uniformly dispersed in Al crystal grains is formed.
- the water reactive Al film of the present invention is characterized by comprising the above water reactive Al composite material.
- the constituent member for the film forming chamber of the film forming apparatus of the present invention is characterized in that the water-reactive Al film is provided on the surface.
- the above-mentioned constituent member is a deposition plate, a shutter or a mask.
- the Al film made of the water-reactive Al composite material of the present invention can be easily manufactured at a low cost by a simple process. Moreover, even after passing through a thermal history from a film forming process of about 300 to 350 ° C., it has the property of reacting and dissolving in an atmosphere where moisture exists, and using high-purity Al (4NAl and 5NAl). Since it is manufactured, there is an effect that the activity / solubility before receiving the thermal history (when forming the sprayed film) and after passing through the thermal history is higher than that of low-purity Al (2NAl and 3NAl).
- the Al film reacts in the presence of moisture and efficiently dissolves while generating hydrogen. Therefore, the film forming chamber components (for example, a deposition plate, a shutter, and the like) covered with the water-reactive Al film are used. If a film is formed using a film forming apparatus equipped with a mask, etc., an inevitable adhesion film made of a film deposition material that adheres to the surface of an adhesion-preventing plate or the like during the film formation process becomes a reaction / dissolution of this Al film. Thus, it is possible to peel and separate from the constituent members for the film forming chamber, and to easily recover the valuable metal of the film forming material from the peeled attached film, and to increase the number of times the constituent material is reused.
- the film forming chamber components for example, a deposition plate, a shutter, and the like
- the film forming chamber undergoes a repeated thermal history.
- the surface of the constituent member provided in the deposition chamber such as an adhesion-preventing plate coated with the Al film of the present invention also undergoes a repeated thermal history. Therefore, the Al film at the time of thermal spray film formation before receiving the thermal history is stable and easy to handle, and the Al film with the inevitable attached film after the thermal history in the film forming process is the base material of the constituent member It is necessary to have a solubility (activity) that can be easily peeled off from the attached film and be stable. In the case of the water-reactive Al film of the present invention, such solubility is sufficiently satisfied.
- the upper limit temperature of the thermal history in the film forming chamber is, for example, about 300 to 350 ° C. in the case of film formation by sputtering, vacuum deposition, ion plating, CVD, etc. It is practically sufficient if the Al film that has undergone the thermal history has water reactivity, and it is even better if the Al film that has undergone the thermal history up to 350 ° C. has water reactivity. As will be described below, the water-reactive Al film in the present invention sufficiently satisfies such solubility.
- the dissolution current Evaluation is performed by density (mA / cm 2 ).
- This measurement method is a method of measuring a mass decrease before and after immersion of the sample in the treatment liquid and converting it to a current density value from the surface area, treatment liquid immersion time, and the like. If the dissolution current density measured by this method is 50 mA / cm 2 or more, the Al film with the unavoidable adhered film after the thermal history in the film forming process can be easily peeled from the substrate together with the adhered film. It can be said that it has solubility (activity).
- Al film made of the water-reactive Al composite material of the present invention since In is uniformly and highly dispersed in 4NAl or 5NAl, it can be easily used in an atmosphere containing water such as water, water vapor, and aqueous solution. It reacts and dissolves.
- Al used in the present invention has a purity of 4N (99.99%) and 5N (99.999%).
- 2N (99%) Al and 3N (99.9%) Al obtained by an electrolytic method are further added. It is obtained by a three-layer electrolysis method or a method utilizing a temperature difference between a solid phase and a liquid phase during solidification by a partial solidification method (segregation method).
- the main impurities in 4NAl and 5NAl are Fe and Si, and Cu, Ni, C, etc. are included in addition to them.
- the electrochemical potential difference between Al and In is very large, but if an Al natural oxide film exists, the ionization of Al does not proceed. However, once the natural oxide film is broken and directly bonded to In, the potential difference rapidly promotes the ionization of Al. At that time, In is present in a highly dispersed state in the Al crystal grains as it is without being chemically changed. Since In has a low melting point (157 ° C.) and does not form a solid solution with Al, a material obtained by melting Al and In so as to have a uniform composition while paying attention to the difference in density between Al and In is used. When thermal spraying is performed on the substrate according to the thermal spraying method, a desired film is obtained by rapid solidification and its compression effect.
- the added In is highly dispersed in the Al crystal grains by the thermal spraying process, and is kept in direct contact with Al. Since In does not form a stable layer with Al, the Al / In interface retains high energy and reacts violently at the contact surface with moisture in an atmosphere where moisture exists.
- the reaction product mainly composed of AlOOH is pulverized without filming on the surface due to the mechanical action caused by the expansion of the generated H 2 bubbles. Dispersed into the liquid, the dissolution reaction proceeds continuously and explosively at the reaction interface that is renewed one after another.
- the Al—In system behavior as described above is particularly remarkable when the Al purity is higher, that is, when 4N and 5N are more than 2N and 3N.
- Al—In sprayed film thus obtained is a film in which In crystal grains (grain diameter of 10 nm or less) are uniformly and highly dispersed in Al crystal grains.
- the reaction starts immediately after immersion, and hydrogen gas is generated.
- the reaction proceeds and the reaction proceeds further, the water becomes black due to the deposited In and the like.
- the sprayed film is completely dissolved, and the precipitate made of Al, In or the like remains in the warm water. This reaction proceeds more vigorously as the water temperature is higher.
- the above-mentioned sprayed film has been described with an example of flame spraying using a rod or wire-shaped material, flame spraying using a powdery material may be used, and arc spraying or plasma spraying may also be used.
- flame spraying using a powdery material may be used, and arc spraying or plasma spraying may also be used.
- the above-mentioned raw materials are melted under a known process condition, sprayed on the surface of the base material, and rapidly solidified to form a sprayed film.
- a member having a surface covered with the water-reactive Al film is used as a deposition chamber constituent member such as a deposition plate or a shutter provided in the deposition chamber of the deposition apparatus, After the number of film forming processes, the deposited film can be easily peeled off from the film forming chamber constituent member to which the film forming material has inevitably adhered, and valuable metals can be easily recovered.
- the stripping solution simply using water such as pure water, water vapor, or an aqueous solution without using chemicals, it is possible to avoid damage due to dissolution of the constituent members for the film forming chamber such as a deposition plate, The number of times of reuse increases dramatically compared to the case where chemicals are used. In addition, since no chemicals are used, processing costs are greatly reduced and environmental conservation is achieved. Furthermore, since many film-forming materials adhering to the film-forming chamber components such as a deposition plate do not dissolve in water, there is an advantage that the same composition as the film-forming material can be recovered as a solid in the same form. . Furthermore, not only does the recovery cost drop dramatically, but the recovery process is simplified, which has the advantage of expanding the range of recoverable materials.
- the film forming material is an expensive metal such as a noble metal or a rare metal
- the film made of the water-reactive Al composite material of the present invention is applied to a component for a film forming chamber such as a deposition plate
- a component for a film forming chamber such as a deposition plate
- the attached film made of the film forming material can be peeled off.
- Rare metals can be recovered. The recovery cost is low, and the film forming material can be recovered with high quality.
- 3NAl, 4NAl, and 5NAl were used as Al, and the relationship between Al purity and In concentration in the following Al-In composition and the solubility of the obtained sprayed film was compared.
- the addition amount of In is based on Al weight.
- the base material with the thermal spray film before being subjected to the heat treatment (0 ° C.) and the base material with the thermal spray film after the heat treatment are immersed in 300 ml of pure water at 80 ° C., and the solubility of each thermal spray film is determined by the current of the immersion liquid. The density was measured and examined. The obtained results are shown in FIG. In FIG. 1, the horizontal axis is the heat treatment temperature (° C.), and the vertical axis is the dissolution current density (mA / cm 2 ).
- the present invention increases the number of times the constituent members for the film forming chamber are reused and includes valuable metals in the field where these film forming apparatuses are used, for example, in the technical field such as semiconductor elements and electronic equipment. It can be used to recover the membrane material.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Coating By Spraying Or Casting (AREA)
- Physical Vapour Deposition (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Chemical Treatment Of Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
・3NAl-3wt%In
・3NAl-4wt%In
・4NAl-2wt%In
・4NAl-3wt%In
・4NAl-4wt%In
・5NAl-1.5wt%In
・5NAl-2.5wt%In
・5NAl-3.5wt%In
Claims (5)
- 4NAl又は5NAlに、Al基準で、2~5wt%のInを添加してなり、Al結晶粒中にInが均一に分散してなることを特徴とする水反応性Al複合材料。
- 4NAl又は5NAlに、Al基準で、2~5wt%のInを添加した材料を組成が均一になるように溶融し、この溶融材料を基材表面に対して溶射して急冷凝固させることにより、Al結晶粒中にInが均一に分散してなるAl溶射膜を形成することを特徴とする水反応性Al膜の製造方法。
- 請求項1記載の水反応性Al複合材料からなることを特徴とする水反応性Al膜。
- 請求項1記載の水反応性Al複合材料からなる水反応性Al膜又は請求項2記載の方法により製造された水反応性Al膜を表面に備えたことを特徴とする成膜装置の成膜室用構成部材。
- 前記構成部材が、防着板、シャッター又はマスクであることを特徴とする請求項4記載の成膜室用構成部材。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/989,971 US20110041759A1 (en) | 2008-04-30 | 2009-04-27 | Water-reactive al composite material, water-reactive al film, process for the production of the al film, and constituent member for film-forming chamber |
EP09738777A EP2284291A4 (en) | 2008-04-30 | 2009-04-27 | VERSUS WATER REACTIVE AL COMPOSITE, VERSUS WATER REACTIVE AL FILM, METHOD FOR MANUFACTURING THE AL FILM, AND FILM-FORMING CHAMBER COMPONENT |
CN200980115406.1A CN102027151B (zh) | 2008-04-30 | 2009-04-27 | 水反应性Al复合材料、水反应性Al膜、该Al膜的制造方法、及成膜室用构成部件 |
JP2010510110A JP5371965B2 (ja) | 2008-04-30 | 2009-04-27 | 溶射用水反応性Al複合材料、水反応性Al溶射膜、このAl溶射膜の製造方法、及び成膜室用構成部材 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-118855 | 2008-04-30 | ||
JP2008118855 | 2008-04-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009133840A1 true WO2009133840A1 (ja) | 2009-11-05 |
Family
ID=41255056
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/058259 WO2009133840A1 (ja) | 2008-04-30 | 2009-04-27 | 水反応性Al複合材料、水反応性Al膜、このAl膜の製造方法、及び成膜室用構成部材 |
Country Status (10)
Country | Link |
---|---|
US (1) | US20110041759A1 (ja) |
EP (1) | EP2284291A4 (ja) |
JP (1) | JP5371965B2 (ja) |
KR (1) | KR20100136559A (ja) |
CN (1) | CN102027151B (ja) |
MY (1) | MY155240A (ja) |
RU (1) | RU2467091C2 (ja) |
SG (1) | SG189751A1 (ja) |
TW (1) | TWI445826B (ja) |
WO (1) | WO2009133840A1 (ja) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290888A (ja) * | 1974-12-23 | 1987-12-17 | オロンジオ デ ノラ エス エイ | アルミニウム合金陽極の性能改良法 |
JPH1030896A (ja) * | 1996-07-17 | 1998-02-03 | Furukawa Electric Co Ltd:The | 高耐食性アルミニウムチューブの製造方法および前記方法により製造された高耐食性アルミニウムチューブ |
JP2005256063A (ja) | 2004-03-10 | 2005-09-22 | Ulvac Japan Ltd | 水崩壊性Al複合材料、この材料からなるAl膜、Al粉及びこれらの製造方法、並びに成膜室用構成部材及び成膜材料の回収方法 |
JP2006002223A (ja) * | 2004-06-18 | 2006-01-05 | Sumitomo Precision Prod Co Ltd | 耐食性被膜 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0637074A (ja) * | 1992-07-17 | 1994-02-10 | Fujitsu Ltd | 半導体製造装置のクリーニング方法 |
JP2002317267A (ja) * | 2001-04-17 | 2002-10-31 | Nec Kagoshima Ltd | 薄膜製造方法 |
RU2213802C2 (ru) * | 2001-09-28 | 2003-10-10 | Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "Салют" | Способ нанесения покрытий на сплавы |
RU2212473C1 (ru) * | 2002-01-24 | 2003-09-20 | Федеральное государственное унитарное предприятие "Московское машиностроительное производственное предприятие "Салют" | Способ нанесения покрытий на сплавы |
-
2009
- 2009-04-27 MY MYPI2010004848A patent/MY155240A/en unknown
- 2009-04-27 EP EP09738777A patent/EP2284291A4/en not_active Withdrawn
- 2009-04-27 CN CN200980115406.1A patent/CN102027151B/zh active Active
- 2009-04-27 JP JP2010510110A patent/JP5371965B2/ja active Active
- 2009-04-27 US US12/989,971 patent/US20110041759A1/en not_active Abandoned
- 2009-04-27 RU RU2010148772/02A patent/RU2467091C2/ru active
- 2009-04-27 KR KR1020107026606A patent/KR20100136559A/ko not_active Application Discontinuation
- 2009-04-27 SG SG2013025499A patent/SG189751A1/en unknown
- 2009-04-27 WO PCT/JP2009/058259 patent/WO2009133840A1/ja active Application Filing
- 2009-04-29 TW TW098114185A patent/TWI445826B/zh active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62290888A (ja) * | 1974-12-23 | 1987-12-17 | オロンジオ デ ノラ エス エイ | アルミニウム合金陽極の性能改良法 |
JPH1030896A (ja) * | 1996-07-17 | 1998-02-03 | Furukawa Electric Co Ltd:The | 高耐食性アルミニウムチューブの製造方法および前記方法により製造された高耐食性アルミニウムチューブ |
JP2005256063A (ja) | 2004-03-10 | 2005-09-22 | Ulvac Japan Ltd | 水崩壊性Al複合材料、この材料からなるAl膜、Al粉及びこれらの製造方法、並びに成膜室用構成部材及び成膜材料の回収方法 |
JP2006002223A (ja) * | 2004-06-18 | 2006-01-05 | Sumitomo Precision Prod Co Ltd | 耐食性被膜 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2284291A4 |
Also Published As
Publication number | Publication date |
---|---|
JP5371965B2 (ja) | 2013-12-18 |
RU2010148772A (ru) | 2012-06-10 |
RU2467091C2 (ru) | 2012-11-20 |
US20110041759A1 (en) | 2011-02-24 |
TW201006936A (en) | 2010-02-16 |
EP2284291A4 (en) | 2011-04-20 |
JPWO2009133840A1 (ja) | 2011-09-01 |
MY155240A (en) | 2015-09-30 |
CN102027151A (zh) | 2011-04-20 |
KR20100136559A (ko) | 2010-12-28 |
CN102027151B (zh) | 2013-07-10 |
TWI445826B (zh) | 2014-07-21 |
SG189751A1 (en) | 2013-05-31 |
EP2284291A1 (en) | 2011-02-16 |
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