WO2016035599A1 - 水反応性Al複合材料、水反応性Al合金溶射膜、このAl合金溶射膜の製造方法、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合金溶射膜、このAl合金溶射膜の製造方法、及び成膜室用構成部材 Download PDFInfo
- Publication number
- WO2016035599A1 WO2016035599A1 PCT/JP2015/073761 JP2015073761W WO2016035599A1 WO 2016035599 A1 WO2016035599 A1 WO 2016035599A1 JP 2015073761 W JP2015073761 W JP 2015073761W WO 2016035599 A1 WO2016035599 A1 WO 2016035599A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- water
- reactive
- sprayed film
- alloy
- Prior art date
Links
Images
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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
-
- 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
-
- 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
- C23C14/04—Coating on selected surface areas, e.g. using masks
- C23C14/042—Coating on selected surface areas, e.g. using masks using masks
-
- 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
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/56—Apparatus specially adapted for continuous coating; Arrangements for maintaining the vacuum, e.g. vacuum locks
- C23C14/564—Means for minimising impurities in the coating chamber such as dust, moisture, residual gases
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/04—Coating on selected surface areas, e.g. using masks
- C23C16/042—Coating on selected surface areas, e.g. using masks using masks
-
- 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
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/4401—Means for minimising impurities, e.g. dust, moisture or residual gas, in the reaction chamber
-
- 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 alloy sprayed film, a method for producing this Al alloy sprayed film, and a constituent member for a film forming chamber, and in particular, Bi, Si, Ti, Ce and Mg in Al.
- Added water-reactive Al composite material, water-reactive Al alloy sprayed film comprising this water-reactive Al composite material, method for producing this Al-alloy sprayed film, and configuration for film forming chamber covered with this Al-alloy sprayed film It relates to members.
- 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 the adhesion film is peeled off.
- 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 adhesion film is peeled off as particles from the film forming chamber component due to the internal stress or stress due to repeated thermal history, and adheres to the substrate, causing 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.
- film forming materials include Al, Mo, Ti, Cu, Ag, Au, Pt, Rh, Ru, Ir, Ta, W, Nb, Zr, Re, Ni, Cr, V, Li, Co, Pd, and Nd.
- valuable metals such as in and Se, an alloy of two or more of these metals, as well as ITO, ZnO, when using an oxide of 2, such as PZT and TiO, without Azukara the film formation on the substrate, other than the substrate
- establishment of an inexpensive processing technique for recycling the constituent members is required.
- a deposition plate used to prevent the deposition material from adhering to the inner wall of the apparatus other than the substrate, the surface of each film forming chamber component, etc. It is currently being reused.
- a peeling method of this deposit 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 prevention plate and the like are damaged to some extent, and the number of reuse is limited. Therefore, it is desired to develop a film peeling method that minimizes damage to the deposition preventive plate and the like.
- An object of the present invention is to solve the above-mentioned problems of the prior art, and can react and dissolve in an atmosphere containing moisture, which is obtained by adding Bi, Si, Ti, Ce and Mg to Al.
- a water-reactive Al composite material for thermal spraying capable of producing a film, an Al alloy sprayed film made of the Al composite material, a method for producing the Al alloy sprayed film, and a component for a deposition chamber covered with the Al alloy sprayed film There is to do.
- the water-reactive Al composite material for thermal spraying according to the present invention comprises Al in an amount of 0.2 wt% to 2 wt%, preferably 0.5 wt% to 1.5 wt% Bi, 1.5 wt% to 8 wt%, based on the Al weight.
- % Preferably 3 wt% to 5 wt% Si, 0.2 wt% to 4 wt%, preferably 1 wt% to 2 wt% Ti, 0.2 wt% to 2 wt%, preferably 0.2 wt% or more It is characterized by adding 0.5 wt% or less of Ce and 0.2 wt% or more and 2 wt% or less, preferably 0.5 wt% or more and 2 wt% or less of Mg.
- the Al film obtained from this material easily reacts in an atmosphere containing moisture to generate and dissolve hydrogen.
- Bi is less than 0.2 wt%, the reactivity with water tends to decrease, and if it is 0.2 wt% or more and less than 0.5 wt%, the reactivity with water tends to be slightly low. If it is 5 wt% or more, the reactivity with water tends to be satisfied, and if it exceeds 2 wt%, the reactivity with water is very high and tends to react with moisture in the atmosphere. If Si is less than 0.7 wt%, the control effect of the reactivity with water tends to be reduced, and if it exceeds 5 wt%, when the molten material is processed from an ingot to a wire, drawing from the ingot becomes difficult.
- the solubility of the Al alloy sprayed film after the thermal history tends to be inferior, and if it exceeds 0.5 wt%, no particular improvement in solubility can be obtained.
- Mg the Al alloy sprayed film after heat treatment has low stability, reacts with moisture in the atmosphere, and a pulverization phenomenon occurs. If the added amount of Mg is less than 0.2 wt%, a slight pulverization phenomenon is observed on the surface after the heat treatment, and if it is 0.5 wt% or more, the pulverization phenomenon does not occur.
- the wire drawing from the ingot tends to be difficult from about 2 wt%.
- the method for producing a water-reactive Al alloy sprayed film of the present invention is based on Al, based on the weight of Al, 0.2 wt% to 2 wt%, preferably 0.5 wt% to 1.5 wt% Bi, 1.5 wt%. % To 8 wt%, preferably 3 wt% to 5 wt% Si, 0.2 wt% to 4 wt%, preferably 1 wt% to 2 wt% Ti, 0.2 wt% to 2 wt%, preferably 0.
- a material obtained by adding 2 wt% or more and 0.5 wt% or less of Ce and 0.2 wt% or more and 2 wt% or less, preferably 0.5 wt% or more and 2 wt% or less of Mg is melted so that the composition becomes uniform, A film is formed by spraying the molten material onto the surface of the base material and rapidly solidifying it.
- the water-reactive Al alloy sprayed film of the present invention is characterized by comprising the water-reactive Al composite material for spraying.
- the constituent member for the film forming chamber of the film forming apparatus of the present invention is characterized in that the surface is provided with the water reactive Al alloy sprayed film.
- the constituent member is a deposition preventing plate, a shutter, or a mask.
- the Al alloy sprayed film comprising the water-reactive Al composite material for thermal spraying according to the present invention can be easily manufactured by a simple process and at a low cost.
- a thermal history from a film forming process at a high temperature for example, about 350 ° C.
- it has the property of reacting and dissolving in an atmosphere containing moisture, and by adding a predetermined amount of each metal
- the effect of controlling the activity before the thermal history (after the film formation) can be achieved.
- the water-reactive Al alloy sprayed film of the present invention reacts in the presence of moisture and efficiently dissolves while generating hydrogen. Therefore, the film forming chamber component covered with this water-reactive Al alloy sprayed film If a film is formed using a film forming apparatus (for example, an adhesion prevention plate, a shutter, a mask, etc.), an unavoidable adhesion film made of a film formation material that adheres to the surface of the adhesion prevention plate or the like during the film formation process. Is peeled and separated by the reaction / dissolution of the Al alloy sprayed film, and the valuable metal of the film forming material can be easily recovered from the peeled adhered film.
- a film forming apparatus for example, an adhesion prevention plate, a shutter, a mask, etc.
- the film forming chamber constituent member is covered with the water-reactive Al alloy sprayed film of the present invention, damage to the constituent member can be reduced, so that the number of reuses of the constituent member such as an adhesion preventing plate increases. There is an effect.
- FIG. 1 A method for measuring strength (maximum point stress (N / mm 2 )) against an Al alloy sprayed film having the composition described in Example 3 (heat treatment: untreated, 200 ° C. ⁇ 150 hr, 250 ° C. ⁇ 150 hr, 300 ° C. ⁇ 150 hr)
- the film forming chamber receives a repeated thermal history. Therefore, the surface of the constituent member provided in the film forming chamber such as the deposition preventing plate coated with the water-reactive Al alloy sprayed film of the present invention also receives a repeated thermal history. Therefore, the Al alloy sprayed film at the time of thermal spray deposition before receiving the thermal history is stable and easy to handle, and the Al alloy sprayed film with the unavoidable adhered film after the thermal history in the deposition process is also easy. It is necessary to have solubility (activity) that can be peeled off from the substrate and to be stable. In the case of the water-reactive Al alloy sprayed film of the present invention, such solubility and stability are 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 alloy sprayed film that has undergone the thermal history is water-reactive, but according to the present invention, the Al alloy sprayed film that has undergone the thermal history at a high temperature up to about 350 ° C. is also high. Has water reactivity.
- An Al alloy sprayed film made of an Al composite material to which Bi is added (for example, Al-1 wt% Bi) has a uniform and highly dispersed Bi in Al, so water, water vapor, aqueous solution, etc. It easily reacts and dissolves in an atmosphere containing moisture (for example, 80 ° C.). Bi affects the number of reaction sites. However, if left in the atmosphere for 10 hours after spraying, there is a demerit that it easily reacts with moisture in the atmosphere and a pulverization phenomenon occurs. Therefore, as described below, in order to obtain stability after forming the sprayed film It is necessary to add Si.
- the electrochemical potential difference between Al and Bi 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 Bi, the potential difference rapidly promotes the ionization of Al. At that time, Bi is highly dispersed in the Al crystal grains as it is without being chemically changed. Since Bi has a low melting point (271 ° C.) and does not form a solid solution with Al, a material in which Al and Bi are melted so as to have a uniform composition while paying attention to the density difference between Al and Bi. 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 Bi is highly dispersed in the Al crystal grains by the thermal spraying process, and is kept in direct contact with Al. Since Bi does not form a stable layer with Al, the Al / Bi 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 forming a film 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.
- an Al alloy sprayed film made of an Al—Bi composite material is very active in a state formed through a spraying process and has good solubility in an atmosphere containing moisture, but is difficult to handle. Moreover, there is little decrease in the reactivity (solubility) of the sprayed film after passing through the thermal history.
- the Al alloy sprayed film obtained from the Al composite material has a reduced activity and is easy to handle, and the Al alloy sprayed film after undergoing a thermal history is It becomes very active and exhibits high solubility (activity) in an atmosphere where moisture exists.
- the composition ratio of Bi and Si it may be pulverized just by leaving it in the atmosphere for 2 to 3 hours after passing through the thermal history.
- the film before the peeling treatment after passing through the thermal history Is preferably stored in a dry atmosphere (even in a vacuum atmosphere) in order to prevent reaction with moisture in the air.
- a composition comprising Al-1 wt% Bi-1.5 wt% Si, Al-1 wt% Bi-2 wt% Si, and Al-1 wt% Bi-2.5 wt% Si was used.
- the stability of the sprayed coating by addition was confirmed.
- A5052 and SUS304 were used as the base material, and the above composition was sprayed onto each base material (spraying method: wire-type flame spraying).
- the stability of the sprayed film was improved and the pulverization phenomenon did not occur either after spraying or after being left in the atmosphere for 300 hours.
- this sprayed film was heat-treated (150 ° C. ⁇ 1 hour) and left in the atmosphere, a pulverization phenomenon occurred, and it was confirmed that the sprayed film became active by the heat treatment.
- the spraying time of the sprayed film is further shortened.
- the pseudodeposition film is formed by depositing Al with a purity of 4N on an Al alloy sprayed film made of Al—Bi—Si—Ti or Al—Bi—Si—Ti—Ce by flame spraying. By doing so, an inevitable metal or metal compound deposit film deposited on the film forming apparatus components during the actual film forming process is simulated.
- the obtained sprayed film was subjected to heat treatment at a predetermined temperature for a predetermined time. It was confirmed that the sprayed film (pseudo deposit film) had a very short peeling time and could be easily peeled off.
- the water-reactive Al alloy sprayed film uses a water-reactive Al composite material in which Bi, Si, Ti, Ce and Mg are uniformly dispersed in Al, and is a substrate to be treated in a predetermined atmosphere according to a spraying method. It is manufactured by forming a film on the surface.
- the obtained water-reactive Al alloy sprayed film contains Al crystal grains in a state in which each metal crystal grain is uniformly and highly dispersed.
- the Al alloy sprayed film is manufactured, for example, as follows. Al, Bi, Si, Ti, Ce, and Mg are prepared, and Bi is 1.5 wt% or more and preferably 2 wt% or less, preferably 0.5 wt% or more and 2 wt% or less of Al based on the weight of Al. % To 8 wt% Si, 0.2 wt% to 4 wt% Ti, 0.2 wt% to 2 wt% Ce, and 0.2 wt% to 2 wt% Mg, and each metal in Al After the material is uniformly melted, a material processed into a rod or wire shape is used as a thermal spray material.
- a substrate such as a deposition chamber constituent member such as a deposition plate of a deposition apparatus
- a base material provided with a desired water-reactive Al alloy sprayed film can be produced by spraying and solidifying by spraying on the surface of the substrate.
- the Al alloy sprayed film thus obtained is a film in which Bi is uniformly and highly dispersed in Al crystal grains.
- the base material coated with the above-mentioned Al alloy sprayed film or the base material after the heat treatment is immersed in water such as water, water vapor, aqueous solution or the like, for example, in warm water at a predetermined temperature
- water such as water, water vapor, aqueous solution or the like
- the reaction starts immediately after immersion, hydrogen gas is generated, and when the reaction further proceeds, the water turns black, and finally the sprayed film is completely dissolved.
- Al, Bi, Si, Ti, Ce , And Mg remain as precipitates. This reaction proceeds more vigorously as the water temperature is higher.
- the temperature of the atmosphere in which moisture is present may be, for example, 40 to 130 ° C., preferably 80 to 100 ° C.
- the above-described sprayed film has been described as an example of flame spraying using a rod or wire-shaped material, other flame spraying may be used, and arc spraying or plasma spraying may be used.
- the above-mentioned raw materials are sprayed onto the substrate surface and rapidly solidified under known process conditions to form a sprayed film.
- a deposition chamber constituent member such as a deposition plate or a shutter provided in the deposition chamber of the deposition apparatus.
- 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 these components are reused increases dramatically compared to when 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 when the film forming material is an expensive metal such as a noble metal or a rare metal, the film can be formed by applying the water-reactive Al alloy sprayed film of the present invention to a component for a film forming chamber such as a deposition preventing plate. Because the deposited film made of the film deposition material can be peeled off by immersing the film forming chamber component having the film inevitably adhered in the water or spraying water vapor, precious metals, rare metals, etc. without contamination Can be recovered. The recovery cost is low, and the film forming material can be recovered with high quality.
- a deposition preventing plate Because the deposited film made of the film deposition material can be peeled off by immersing the film forming chamber component having the film inevitably adhered in the water or spraying water vapor, precious metals, rare metals, etc. without contamination Can be recovered. The recovery cost is low, and the film forming material can be recovered with high quality.
- Al, Bi, Si, Ti, and Ce are blended in the above proportions, and using a thermal spray material in which each metal is uniformly dissolved in Al and processed into a wire shape, hot wire flame spraying (wire flame spraying) (Heat source: C 2 H 2 —O 2 gas, about 3000 ° C., spray gun: Sulzer Metco, Model 12E) and sprayed on the surface of a base material (A5052) made of aluminum in an air atmosphere. Then, a pseudo deposit film was formed on the sprayed film.
- hot wire flame spraying wire flame spraying
- spray gun Sulzer Metco, Model 12E
- Each Al alloy sprayed film with pseudo-deposition film thus obtained was subjected to heat treatment at 250 ° C. (in the atmosphere, 100 hours, furnace cooling) instead of the thermal history received from the film formation process.
- the substrate with the sprayed film after the heat treatment was immersed in 300 ml of pure water at 80 ⁇ 1 ° C., and the peeling time (hr) of each sprayed film (pseudodeposited film) was measured to examine the solubility.
- the obtained results are shown in FIG. In FIG. 1, the vertical axis represents the pseudo deposition film peeling time (hr (hour)).
- the Al—Bi-based sprayed film peels off in a shorter time than the Al—In-based (control), indicating that the peelability is high.
- the peeling time of the Al alloy sprayed film is shortened and the peelability is high.
- Ce is added to the Al—Bi system, the stripping time of the Al alloy sprayed film (pseudo deposit film) is further shortened.
- an Al alloy sprayed film composed of the above-described control composition, and an Al alloy composed of Al-1 wt% Bi-3-4 wt% Si-1-2 wt% Ti-0.2% Ce obtained in the same manner as described above.
- the sprayed film was left in a constant temperature and high humidity oven at 40 ° C. and 90% RH for 108 hours, and the number of surface particles was measured (measuring environment: clean room, class: 1000, measuring device: manufactured by Pentagon Technologies, QIII MAX), stability was examined.
- the sprayed film made of the control composition 3800 pieces / cm 2 approximately of particles with a particle size 0.3 [mu] m, 2400 pieces / cm 2 approximately of particles in the particle size 0.5 ⁇ m was observed, also, Al-1 wt In the case of a sprayed film composed of% Bi-3 to 4 wt% Si-1 to 2 wt% Ti-0.2% Ce, a particle size of about 400 particles / cm 2 with a particle size of 0.3 ⁇ m, and 200 particles with a particle size of 0.5 ⁇ m It was confirmed that particles of about / cm 2 or less were observed, generation of particles was suppressed, and higher stability was obtained.
- Reference Example 2 instead of the heat treatment (250 ° C. ⁇ 100) for each Al alloy sprayed film (pseudo-deposition film) having each composition obtained according to the description in Reference Example 1, in this reference example, heat treatment at 270 ° C. (in air, 150 hours) The process of Reference Example 1 was carried out. The substrate with the sprayed film after the heat treatment was immersed in 300 ml of pure water at 80 ⁇ 1 ° C., and the peeling time (hours) of each sprayed film (pseudodeposited film) was measured to examine the solubility. The obtained results are shown in FIG. In FIG. 2, the vertical axis represents the pseudo deposition film peeling time (hr).
- the substrate with the sprayed film after the heat treatment was immersed in 300 ml of pure water at 80 ⁇ 1 ° C., and the peeling time (hours) of each sprayed film (pseudodeposited film) was measured to examine the solubility.
- the obtained results are shown in FIG. In FIG. 3, the vertical axis represents the pseudo deposition film peeling time (hr (hour)).
- the pseudo deposit film could not be peeled off even in 3 hours, but in the case of the present invention, the pseudo deposit film was obtained in 1 hour or less. could be peeled off without problems.
- the peelability of the Al alloy sprayed film after high-temperature heat treatment (250 ° C.) at the process temperature is improved.
- Example 1 heat treatment (in the atmosphere, 150 hours, furnace cooling) at 250 ° C. was performed on each of the obtained Al alloy sprayed films instead of the thermal history received from the film forming process. Then, instead of this heat treatment, heat treatment at 300 ° C. (in the atmosphere, 150 hours, furnace cooling) was performed, and the process of Example 1 was repeated.
- the obtained results are shown in FIG. In FIG. 4, the vertical axis represents the pseudo deposition film peeling time (hr (hour)).
- the pseudodeposited film could not be peeled off even in 3 hours.
- the deposition film could be peeled off without any problem.
- the addition of Ce improves the peelability of the Al alloy sprayed film after high-temperature heat treatment (300 ° C.).
- the coin sample on which the Al alloy sprayed film is formed is fixed to a tensile test jig made of SUS304 with an adhesive, and the tensile test jig to which the coin sample is bonded is manufactured by SHIMADZU.
- a tensile test was performed with AUTOGRAPH at a tensile speed of 1 mm / min, the sprayed film was broken, and the maximum point stress was determined. The fracture occurred mainly at the interface between the sprayed film and the adhesive, and a part occurred in the sprayed film.
- the Al alloy sprayed film having the composition of the present invention has almost the same strength when heat treatment is not performed, as compared with the case of the Al—In system as a control.
- the strength of the Al alloy sprayed film increased after the heat treatment.
- Ce and Mg the strength of the Al alloy sprayed film after the high-temperature heat treatment at the process temperature is improved, and by adding Si and Ti, the strength of the Al alloy sprayed film is also improved.
- Example 1 The composition of Al, Bi, Si, Ti, Ce and Mg in Example 1 was changed to Al-0.2 wt% Bi-1.5 wt% Si-0.2 wt% Ti-0.2 wt% Ce-0.2 wt% Mg ( N number: 3) and Al-1 wt% Bi-4 wt% Si-2 wt% Ti-1 wt% Ce-0.5 wt% Mg (N number: 3).
- Al-0.2 wt% Bi-1.5 wt% Si-0.2 wt% Ti-0.2 wt% Ce-0.2 wt% Mg N number: 3
- Al-1 wt% Bi-4 wt% Si-2 wt% Ti-1 wt% Ce-0.5 wt% Mg N number: 3
- An adhesion-preventing plate having a surface coated with an Al-1 wt% Bi-3 wt% Si-1 wt% Ti-0.2 wt% Ce-0.5 wt% Mg sprayed film (film thickness 200 ⁇ m) obtained in Example 1 is provided.
- Mo film formation was performed for one cycle using the sputtering apparatus. Sputtering at this time was performed at a sputtering time: 150 hours, a sputtering temperature: 200 ° C., and a Mo film thickness: about 1 mm. When the Mo adhesion-preventing plate was removed and the surface was observed, no powdering phenomenon occurred after sputtering, and the stability of the sprayed film was not changed.
- sputter deposition was performed using Ti instead of Mo. Sputtering at this time was performed under the same sputtering conditions as in the case of Mo, and a film thickness of about 1 mm was obtained.
- this adhesion preventing plate was treated with hot water at 80 ° C., the sprayed film was dissolved in about 10 minutes, and the Ti adhesion film was peeled off from the adhesion preventing plate. For this reason, Ti as a film forming material was easily recovered.
- a vacuum film forming apparatus for forming a thin film of a metal or a metal compound by a sputtering method, a vacuum deposition method, an ion plating method, a CVD method, etc., with an Al alloy sprayed film made of the water-reactive Al composite material of the present invention. If the surface of the film forming chamber component is covered, the inevitable adhesion film adhering to the surface of the film forming chamber component during the film forming process is peeled off and collected in an atmosphere containing moisture. Can do. Therefore, the present invention increases the number of times the film forming chamber components are reused and includes valuable metals in the field of using these film forming apparatuses, for example, in the manufacturing technical field of semiconductor elements and electronic equipment. It can be used to recover the film forming material.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- General Chemical & Material Sciences (AREA)
- Coating By Spraying Or Casting (AREA)
- Physical Vapour Deposition (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
Description
Biが添加されているAl複合材料(例えば、Al-1wt%Bi)からなるAl合金溶射膜は、Al中にBiが均一に高度に分散しているので、水、水蒸気、水溶液等のような水分の存在する雰囲気中(例えば、80℃)で容易に反応して溶解する。Biは反応サイト数に影響がある。しかし、溶射後10時間、大気中に放置すると、大気中の水分と容易に反応し、粉化現象が発生するというデメリットがあるため、以下述べるように、溶射膜形成後に安定性を得るためにSiを添加することが必要になる。
Al、Bi、Si、Ti、Ce及びMgを用意し、Alに対して、Al重量基準で、0.2wt%以上2wt%以下、好ましくは0.5wt%以上2wt%以下のBi、1.5wt%以上8wt%以下のSi、0.2wt%以上4wt%以下のTi、0.2wt%以上2wt%以下のCe、及び0.2wt%以上2wt%以下のMgを配合し、Al中に各金属を均一に溶融させた後、ロッド又はワイヤー形状に加工した物を溶射材料として用い、例えばワイヤー式フレーム溶射法により、成膜装置の防着板等の成膜室用構成部材のような基材の表面に吹き付けて急冷凝固させ、被覆することにより所望の水反応性Al合金溶射膜を備えた基材を製造することができる。かくして得られたAl合金溶射膜は、上記したように、Al結晶粒中にBiが均一に高度に分散した状態で存在している膜である。
(参考例1)
Al、Bi、Si、及びTiを用い、また、さらにCeを添加し、以下の組成におけるCe添加による溶射膜の剥離時間(時)に対する影響を検討した。添加量は、Al重量基準である。対照として、ワイヤー式フレーム溶射により得られたAl-In系のAl-3wt%In-0.4wt%Si-0.2wt%Ti(特許第5517371号公報参照)を用いた。
・Al-1wt%Bi-3wt%Si-1wt%Ti(N数:3)
・Al-1wt%Bi-3wt%Si-2wt%Ti(N数:3)
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2%Ce(N数:3)
・Al-1wt%Bi-4wt%Si-1wt%Ti(N数:3)
・Al-1wt%Bi-4wt%Si-2wt%Ti(N数:3)
参考例1の記載に従って得られた各組成からなる各Al合金溶射膜(擬似デポ膜)に対する熱処理(250℃×100)の代わりに、本参考例では、270℃の熱処理(大気中、150時間、炉冷)を施して、参考例1のプロセスを実施した。熱処理を経た後の溶射膜付基材を80±1℃の純水300ml中に浸漬し、各溶射膜(擬似デポ膜)の剥離時間(時)を測定し、溶解性を検討した。得られた結果を、図2に示す。図2において、縦軸は擬似デポ膜剥離時間(hr)である。
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2wt%Ce-0.5wt%Mg(N数:3)
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2wt%Ce-0.5wt%Mg(熱処理:未処理、N数:3)
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2wt%Ce-0.5wt%Mg(熱処理:200℃×150hr、N数:3)
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2wt%Ce-0.5wt%Mg(熱処理:250℃×150hr、N数:3)
・Al-1wt%Bi-3wt%Si-1wt%Ti-0.2wt%Ce-0.5wt%Mg(熱処理:300℃×150hr、N数:3)
Claims (5)
- Alに、Al重量基準で、0.2wt%以上2wt%以下のBi、1.5wt%以上8wt%以下のSi、0.2wt%以上4wt%以下のTi、0.2wt%以上2wt%以下のCe、及び0.2wt%以上2wt%以下のMgを添加してなることを特徴とする溶射用水反応性Al複合材料。
- Alに、Al重量基準で、0.2wt%以上2wt%以下のBi、1.5wt%以上8wt%以下のSi、0.2wt%以上4wt%以下のTi、0.2wt%以上2wt%以下のCe、及び0.2wt%以上2wt%以下のMgを添加してなる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成膜することを特徴とする水反応性Al合金溶射膜の製造方法。
- 請求項1記載の溶射用水反応性Al複合材料からなることを特徴とする水反応性Al合金溶射膜。
- 請求項1記載の溶射用水反応性Al複合材料からなる水反応性Al合金溶射膜又は請求項2記載の方法により製造された水反応性Al合金溶射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 |
---|---|---|---|
SG11201700344QA SG11201700344QA (en) | 2014-09-05 | 2015-08-24 | WATER-REACTIVE Al COMPOSITE MATERIAL, WATER-REACTIVE Al ALLOY SPRAY FILM, METHOD FOR MANUFACTURING Al ALLOY SPRAY FILM AND CONSTITUENT MEMBER FOR FILM DEPOSITION CHAMBER |
JP2015559340A JP5899387B1 (ja) | 2014-09-05 | 2015-08-24 | 水反応性Al複合材料、水反応性Al合金溶射膜、このAl合金溶射膜の製造方法、及び成膜室用構成部材 |
CN201580021615.5A CN106232854B (zh) | 2014-09-05 | 2015-08-24 | 水反应性Al复合材料、水反应性Al合金喷镀膜、该膜的制法及成膜室用构成部件 |
KR1020167030267A KR101702282B1 (ko) | 2014-09-05 | 2015-08-24 | 수반응성 Al 복합 재료, 수반응성 Al 합금 용사막, 이 Al 합금 용사막의 제조 방법, 및 성막실용 구성 부재 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014-181685 | 2014-09-05 | ||
JP2014181685 | 2014-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016035599A1 true WO2016035599A1 (ja) | 2016-03-10 |
Family
ID=55439665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2015/073761 WO2016035599A1 (ja) | 2014-09-05 | 2015-08-24 | 水反応性Al複合材料、水反応性Al合金溶射膜、このAl合金溶射膜の製造方法、及び成膜室用構成部材 |
Country Status (7)
Country | Link |
---|---|
JP (1) | JP5899387B1 (ja) |
KR (1) | KR101702282B1 (ja) |
CN (1) | CN106232854B (ja) |
MY (1) | MY166240A (ja) |
SG (1) | SG11201700344QA (ja) |
TW (1) | TW201615856A (ja) |
WO (1) | WO2016035599A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020193356A (ja) * | 2019-05-27 | 2020-12-03 | アルバックテクノ株式会社 | 成膜装置用部品及びこれを備えた成膜装置 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP5327760B2 (ja) * | 2008-04-30 | 2013-10-30 | 株式会社アルバック | 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 |
JP5327759B2 (ja) * | 2008-04-30 | 2013-10-30 | 株式会社アルバック | 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 |
JP5517371B2 (ja) * | 2010-08-27 | 2014-06-11 | 株式会社アルバック | 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 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3974055A (en) * | 1974-12-23 | 1976-08-10 | The Dow Chemical Company | Aluminum alloy anode composition |
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 |
-
2015
- 2015-08-24 WO PCT/JP2015/073761 patent/WO2016035599A1/ja active Application Filing
- 2015-08-24 JP JP2015559340A patent/JP5899387B1/ja active Active
- 2015-08-24 KR KR1020167030267A patent/KR101702282B1/ko active IP Right Grant
- 2015-08-24 CN CN201580021615.5A patent/CN106232854B/zh active Active
- 2015-08-24 MY MYPI2017000052A patent/MY166240A/en unknown
- 2015-08-24 SG SG11201700344QA patent/SG11201700344QA/en unknown
- 2015-09-03 TW TW104129216A patent/TW201615856A/zh unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
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 |
JP5327760B2 (ja) * | 2008-04-30 | 2013-10-30 | 株式会社アルバック | 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 |
JP5327759B2 (ja) * | 2008-04-30 | 2013-10-30 | 株式会社アルバック | 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 |
JP5517371B2 (ja) * | 2010-08-27 | 2014-06-11 | 株式会社アルバック | 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 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020193356A (ja) * | 2019-05-27 | 2020-12-03 | アルバックテクノ株式会社 | 成膜装置用部品及びこれを備えた成膜装置 |
JP7417367B2 (ja) | 2019-05-27 | 2024-01-18 | アルバックテクノ株式会社 | 成膜装置用部品及びこれを備えた成膜装置 |
Also Published As
Publication number | Publication date |
---|---|
SG11201700344QA (en) | 2017-03-30 |
JPWO2016035599A1 (ja) | 2017-04-27 |
TWI561640B (ja) | 2016-12-11 |
JP5899387B1 (ja) | 2016-04-06 |
CN106232854B (zh) | 2017-10-13 |
KR20160130322A (ko) | 2016-11-10 |
MY166240A (en) | 2018-06-22 |
KR101702282B1 (ko) | 2017-02-03 |
TW201615856A (zh) | 2016-05-01 |
CN106232854A (zh) | 2016-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR101235999B1 (ko) | 수붕괴성 Al 복합재료, 이 재료로 이루어지는 Al 막, Al 분말 및 이들의 제조방법, 그리고 막형성 챔버용 구성부재 및 막형성 재료의 회수방법 | |
JP5517371B2 (ja) | 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 | |
JP5327758B2 (ja) | 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 | |
JP5371966B2 (ja) | 水反応性Al膜の製造方法及び成膜室用構成部材 | |
JP5371964B2 (ja) | 水反応性Al膜の製造方法及び成膜室用構成部材 | |
JP5327759B2 (ja) | 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 | |
JP5899387B1 (ja) | 水反応性Al複合材料、水反応性Al合金溶射膜、このAl合金溶射膜の製造方法、及び成膜室用構成部材 | |
JP6418854B2 (ja) | 水反応性Al合金溶射膜の製造方法 | |
JP5327760B2 (ja) | 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 | |
JP5481492B2 (ja) | 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 | |
JP5371965B2 (ja) | 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 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ENP | Entry into the national phase |
Ref document number: 2015559340 Country of ref document: JP Kind code of ref document: A |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15837469 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 20167030267 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 15837469 Country of ref document: EP Kind code of ref document: A1 |