WO2006043429A1 - 耐食性部材およびその製造方法 - Google Patents
耐食性部材およびその製造方法 Download PDFInfo
- Publication number
- WO2006043429A1 WO2006043429A1 PCT/JP2005/018593 JP2005018593W WO2006043429A1 WO 2006043429 A1 WO2006043429 A1 WO 2006043429A1 JP 2005018593 W JP2005018593 W JP 2005018593W WO 2006043429 A1 WO2006043429 A1 WO 2006043429A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- film
- corrosion
- less
- plasma
- raw material
- Prior art date
Links
- 230000007797 corrosion Effects 0.000 title claims abstract description 62
- 238000005260 corrosion Methods 0.000 title claims abstract description 62
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 10
- 239000002994 raw material Substances 0.000 claims abstract description 63
- 239000011800 void material Substances 0.000 claims abstract description 63
- 238000007751 thermal spraying Methods 0.000 claims abstract description 36
- 239000000463 material Substances 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000007750 plasma spraying Methods 0.000 claims abstract description 11
- 238000005530 etching Methods 0.000 claims description 44
- 239000000919 ceramic Substances 0.000 claims description 29
- 239000000758 substrate Substances 0.000 claims description 27
- 238000000576 coating method Methods 0.000 claims description 24
- 239000011248 coating agent Substances 0.000 claims description 23
- 238000001035 drying Methods 0.000 claims description 19
- 238000001020 plasma etching Methods 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 13
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 claims description 5
- 101150107341 RERE gene Proteins 0.000 claims 1
- 238000005524 ceramic coating Methods 0.000 abstract 2
- 210000002381 plasma Anatomy 0.000 description 66
- 239000007789 gas Substances 0.000 description 49
- 230000000052 comparative effect Effects 0.000 description 20
- 238000005507 spraying Methods 0.000 description 19
- 239000002245 particle Substances 0.000 description 15
- 230000006866 deterioration Effects 0.000 description 13
- 230000015556 catabolic process Effects 0.000 description 11
- 238000006731 degradation reaction Methods 0.000 description 11
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 238000012360 testing method Methods 0.000 description 10
- 239000000843 powder Substances 0.000 description 9
- 239000004065 semiconductor Substances 0.000 description 9
- 238000004506 ultrasonic cleaning Methods 0.000 description 8
- 238000002844 melting Methods 0.000 description 7
- 230000008018 melting Effects 0.000 description 7
- 238000005498 polishing Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 230000008021 deposition Effects 0.000 description 5
- 229910052736 halogen Inorganic materials 0.000 description 5
- 150000002367 halogens Chemical class 0.000 description 5
- 238000011109 contamination Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000032798 delamination Effects 0.000 description 3
- 238000010285 flame spraying Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 229910001882 dioxygen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007749 high velocity oxygen fuel spraying Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000009832 plasma treatment Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 235000012431 wafers Nutrition 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 241000405965 Scomberomorus brasiliensis Species 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 238000004033 diameter control Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000003028 elevating effect Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000036470 plasma concentration Effects 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
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
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
-
- 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
- C23C4/10—Oxides, borides, carbides, nitrides or silicides; Mixtures thereof
- C23C4/11—Oxides
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249967—Inorganic matrix in void-containing component
- Y10T428/24997—Of metal-containing material
Definitions
- the present invention relates to a corrosion-resistant member used in a corrosive environment such as a corrosive plasma gas atmosphere and a manufacturing method thereof, and more specifically, for example, a halogen-based corrosive gas used in a semiconductor device manufacturing process or a liquid crystal device manufacturing process.
- the present invention relates to a corrosion-resistant member that has excellent resistance to haguchi-gen gas plasma and a method for manufacturing the same.
- the manufacturing size has been increased from the viewpoint of cost reduction in the manufacture of semiconductor devices and liquid crystal devices.
- the size of semiconductor wafers can be adjusted to 12 inches, and the size of liquid crystal devices can exceed 1 m. It is requested.
- quartz glass and ceramics are limited in use for large parts in terms of strength and rigidity.
- members in which a coating of a corrosion-resistant material such as ceramic is formed on the surface of a metal substrate have come to be used.
- alumina and Y are used as corrosion-resistant materials as technologies to cope with the increase in size of corrosion-resistant materials.
- Film formation by spraying using rare earth oxides such as O 3 (For example, Japanese Patent No. 3 5 1 0 9 93 and Japanese Patent Laid-Open No. 2 0 0 4-1 0 9 8 1) have been proposed.
- a corrosion-resistant film When a corrosion-resistant film is formed by thermal spraying, voids are inevitably generated in the film, and the voids tend to be larger than bulk ceramic.
- Y 2 O 3 sprayed film has relatively high corrosion resistance compared to other sprayed films such as A 1 2 O 3 sprayed film, but Y 2 O 3 as the raw material has a high melting point and is difficult to melt.
- the voids in the sprayed coating structure may become larger than the A 1 2 O 3 sprayed coating.
- An object of the present invention is to provide a corrosion-resistant member having a controlled void size and having excellent corrosion resistance and adhesion to a substrate, and a method for producing the same.
- the present inventors have a small void present on the surface of the sprayed film, We conducted intensive research to develop materials that have excellent resistance to halogen-based corrosive gases or halogen gas plasma, and the adhesion strength between the base material and the sprayed film is unlikely to decrease.
- the size of the voids in the sprayed film depends on the manufacturing conditions, and by selecting the manufacturing conditions, the size of the voids can be controlled below a certain level, and excellent corrosion resistance is achieved.
- the inventors have found that a sprayed film having adhesion to a substrate can be obtained, and have completed the present invention.
- a corrosion-resistant member used in a corrosive environment, wherein the base material and the relative density covering part or all of the base material surface is 80% or more.
- a ceramic sprayed coating wherein the ceramic sprayed coating has a film thickness of 50 to 500 m and a maximum diameter of a void existing on the surface is 25 ⁇ or less.
- a corrosion resistant member is provided.
- the ceramic sprayed coating is made of 80% CF 4 and 20% O 2 by a parallel plate type RIE apparatus having a material of ⁇ 20 3 and a gap between electrodes of 100 mm. Even if the etching rate is 5 nm / min or less when plasma etching is performed using a mixed gas under the conditions of a flow rate of 50 mL Lmin, output of 100 W and pressure of 6.7 Pa Yo!
- the corrosion-resistant member is Y 2 having a bulk density of 1.5 g / cm 3 or more and a moisture content of 1% by mass or less as a raw material for the ceramic sprayed film. It is obtained by plasma spraying the base material with an output of 40 to 110 kW with a thermal spraying apparatus using O 3 and having two anode torches.
- the ceramic sprayed film is made of a parallel plate RIE apparatus having a material of A 1 20 3 and a gap between electrodes of 10 O mm, and 80% CF 4 and 20
- plasma etching was performed using a mixed gas consisting of% O 2 at a flow rate of 50 m LZ min, an output of 1 0 0 OW, and a pressure of 6.7 Pa, Even a film with an etching rate of 20 nm / min or less may be used.
- the corrosion-resistant member, the as a raw material of Serra mix sprayed film, 1 to as small KasamiHisoka degree. 0 g / cm 3 or more der is, water content 1% by weight or less of A 1 2 0 3 is obtained by plasma spraying the base material at an output of 40 to 110 kW with a thermal spraying apparatus having two anode torches.
- a corrosion-resistant member in which a substrate surface is coated with a Y 2 O 3 film by plasma spraying, and the bulk density is at least 1.5 g Z cm. Water content is 1 mass for 3 or more raw materials.
- the film thickness is at 5 0 ⁇ 5 0 0 ⁇ ⁇ , the maximum diameter of Boi de present on the film surface 2 5; plasma to form a um or less Upsilon 2 Omicron 3 film.
- a method for producing a corrosion resistant member for covering the A 1 2 0 3 film in Ri substrate surface by the plasmas spraying also the bulk density is less 1. 0 g Z 4 0 to 1 1 0 k using a drying process in which a raw material of 3 cm 3 or more is dried until the moisture content is 1% by mass or less, and the raw material after drying is sprayed with two anode torches. Thermal sprayed on substrate surface with W output, relative density is 80% or more, film thickness is 50-500m, maximum diameter of void existing on film surface is 25 ⁇ or less And a plasma spraying step of forming an A 1 2 0 3 film.
- a method for producing a corrosion-resistant member is provided.
- the present invention after adjusting the moisture content and bulk density of the raw material, it is sprayed at a power of 40 to 110 kW by a spraying device having two anode torches separated from each other.
- the resulting sprayed coating has a maximum diameter of the void existing on the surface (hereinafter referred to as (It may be described as “maximum void diameter”) is controlled to 25 ⁇ m or less, so that the number of corrosion starting points is small and the etching rate during plasma exposure is small.
- the corrosion-resistant member of the present invention as a member in a chamber in a semiconductor manufacturing process or a liquid crystal manufacturing process, it is possible to prevent generation of particles due to corrosion and extend the life of the member. It becomes possible.
- manufacturing costs for semiconductor devices and liquid crystal devices can be reduced, and productivity can be improved by reducing the frequency of parts replacement.
- FIG. 1 is a schematic cross-sectional view showing an apparatus for forming a sprayed film in a corrosion-resistant member of the present invention.
- FIG. 2 is a drawing showing a schematic configuration of an R I E device used for etching a corrosion-resistant member.
- the corrosion-resistant member of the present invention is used in a corrosive environment such as a plasma treatment using a corrosive gas.
- Corrosion-resistant components cover at least the substrate and part or all of it.
- ceramic sprayed film The material of the base material is not limited, but it can be formed of, for example, a metal such as stainless steel or aluminum, glass, ceramics, or a ceramic composite material.
- a ceramic sprayed coating is a film that covers the surface of a substrate, at least a portion that is exposed to a corrosive atmosphere, has a relative density of 80% or more, and has a maximum void diameter on the surface of the film. 2 5 m or less.
- the relative density of the ceramic sprayed coating is low, the corrosion resistance and plasma resistance will decrease, and the degassing from the corrosion-resistant material will increase, and the vacuum in the chamber will not increase, raising the running cost.
- the relative density is preferably 80% or more, and more preferably 85% or more in order to prevent a decrease in chip yield due to generation of particles.
- the size of the void (the diameter of the void) is more closely related to the likelihood of plasma corrosion than the number and total area of the voids.
- the maximum diameter of the void existing on the surface of the sprayed film has an important meaning from the viewpoint of the effect on the plasma resistance.
- Voids with a diameter of more than 25 / m reduce the adhesion of the sprayed film and cause corrosion, as well as cause contamination of particles, compared to those with a diameter of 25 or less. It was confirmed that it was easy.
- conventional sprayed coatings focusing on the maximum void diameter on the surface of the film and controlling this, there was no idea of a problem.
- the maximum void diameter increases beyond 25 / xm, the depth of the void increases with the diameter. For this reason, a portion having low adhesion strength is locally generated at the interface with the substrate.
- the edge is formed longer depending on the diameter.
- the edge of the void is more easily scraped off and more likely to be detached, so a large diameter void of more than 25 ⁇ is longer due to the longer edge and the ratio of the depth to the film thickness. Detachment is likely to cause particles.
- the void when repeatedly exposed to the plasma environment, gradually expands and the depth also increases.
- the exposed surface may cause corrosion.
- a sprayed coating that has even one void exceeding the diameter of 25 ⁇ on the surface of the sprayed coating has a marked decrease in corrosion resistance.
- particles that enter the void are difficult to remove by cleaning, which can contaminate the chamber during the process and reduce chip yield. If it is less than S 15 m, the probability of particles entering the void can be greatly reduced, so that particle contamination caused by intrusion of particles into the void can be prevented.
- the maximum void diameter is preferably 25 m or less, and more preferably 15 m or less.
- the “maximum void diameter” is, for example, sprayed After polishing the film surface, the surface can be determined with reference to the diameter of the largest void when the surface is arbitrarily observed with a 10X field at a magnification of X500 using a scanning microscope. .
- the film thickness of the sprayed coating of the corrosion resistant member is preferably 50 to 500 ⁇ m, more preferably 100 to 300 ⁇ .
- the thermal history increases due to repeated film formation, and the crack at the interface between the base material and the sprayed film increases and the sprayed film tends to peel off.
- the film thickness is too thick, the number of through-holes in the sprayed film increases, so that the interface between the substrate and the sprayed film is easily corroded by the corrosive gas, and the sprayed film is easily peeled off.
- the maximum void diameter to 25 ⁇ m or less, it is possible to reduce the number of through-holes even when the film thickness is relatively thin.
- a predetermined condition for example, the inter-electrode gear-up Using a 100 mm parallel plate RIE system, a mixed gas consisting of 80% CF 4 and 20% O 2 was used, flow rate 50 ml L min, output 10 00 w, pressure 6 .
- etching is performed under the condition of 7 Pa (50 mTorr), it has an etching resistance with an etching rate of Sn mZmin or less.
- the Y 2 ⁇ 3 film with an etching rate of 5 nm Z min or less under the above conditions is hardly etched even by plasma irradiation, so it can prevent particle contamination, prolong the life of the corrosion-resistant member, and replace the member. Reduce the frequency and improve the productivity of semiconductor devices and liquid crystal devices Contribute to.
- a predetermined condition for example, electrostatic interpolar gears 100 mm parallel plate type RIE device, using a gas mixture of 80% CF 4 and 20% O 2 , flow rate 5 O m L / min, output 10 00 W, pressure 6.
- electrostatic interpolar gears 100 mm parallel plate type RIE device using a gas mixture of 80% CF 4 and 20% O 2 , flow rate 5 O m L / min, output 10 00 W, pressure 6.
- plasma etching under the condition of 7 Pa (50 mTorr), it has an etching resistance with an etching rate of 20 n mZmin or less.
- An A 1 20 3 film with an etching rate of 20 nm / min or less under the above conditions can prevent particle contamination because the amount of etching by plasma irradiation is small, and a sufficient life of a corrosion-resistant member can be obtained. This contributes to the productivity of devices and liquid crystal devices.
- the present invention uses a spraying device including a force sword torch and two anode torches separated from each other.
- the raw material can be introduced into the plasma arc part, which is the hottest temperature, so that the ceramic raw material can be completely melted.
- a desired sprayed film can be obtained.
- the raw material cannot be introduced into the plasma arc due to the structure, and it is difficult to completely melt the ceramic raw material.
- an oxygen element (O) -containing gas plasma when thermal spraying the ceramic raw material.
- the o-containing gas plasma can be formed, for example, by supplying oxygen gas (o 2 ), air, or a mixed gas thereof.
- FIG. 1 is a schematic cross-sectional view showing an example of such a thermal spraying apparatus.
- This thermal spraying apparatus includes an apparatus main body 1 having a thermal spray particle injection port 1 a, a force sword torch 2 provided on the opposite side of the thermal spray particle injection port 1 a of the apparatus main body 1, and both sides of the apparatus main body 1.
- Two anode torches 3 a and 3 b provided to be supported by the supporting members 4 a and 4 b are provided.
- the Ar gas is supplied to the tip of the force sword torch 2 through the Ar gas supply pipe 1 1 and the Ar gas introduction path 1 1 a, and an arc is generated while preventing the torch (electrode) from being oxidized. .
- An accelerator nozzle 5 is provided on the downstream side of the cathode torch 2, and the arc generated in the cathode torch 2 is accelerated to generate a plasma arc 40.
- Air or oxygen gas is supplied to the arc from the force sword torch 2 from the air supply pipe 1 2 through the air introduction path 1 2 a, and the plasma arc 40 0 generated from the accelerator nozzle 5 is the O-containing plasma. Become.
- a ceramic raw material powder which is a thermal spraying raw material powder, is introduced from a raw material supply hopper (not shown) through a raw material supply pipe 13 to the generating portion of the plasma arc 40, and the raw material powder is completely melted. As a result, spray particles are formed. Even if the raw material powder is supplied to the tip of the plasma arc 40, it is possible to completely melt the raw material powder in the same manner. However, since the generating part of the plasma arc 40 has a higher temperature, it can be supplied there. I like it.
- Ar gas is supplied to the tip of the anode torch 3a through the Ar gas supply pipe 21a and the Ar gas introduction path 2 2a and 23a, and the torch (electrical An arc is generated while preventing oxidation of the pole), and the plasma arc 41a extends perpendicularly to the plasma arc 40 emitted from the force sword torch 2.
- Ar gas is also supplied to the tip of the anode torch 3 b through the Ar gas supply pipe 2 1 b and Ar gas introduction path 2 2 b and 2 3 b to prevent oxidation of the torch (electrode).
- An arc is generated while the plasma arc 41 extends perpendicularly to the plasma arc 40 emitted from the force-sword torch 2.
- the plasma jet 40 0 a is obtained at the confluence of the plasma arcs 40, 4 1 a and 4 lb.
- air is supplied to the plasma jet 40a through the air pipes 24a, 24b through the air introduction channels 25a, 25b, respectively. Trim heat that does not contribute to melting at 40 a.
- the force sword torch 2 and anodic torches 3 a and 3 b have auxiliary power sources 3 2 a and 3 2 b that function as high-frequency starters that start arc generation, and energy sources that sustain the arc.
- DC main power supplies 3 1 a and 3 1 b are connected.
- the auxiliary power sources 3 2 a and 3 2 b and the DC main power sources 3 1 a and 3 1 b are controlled by a control device (not shown).
- a cooling jacket 14 is provided around the cathode torch 2 and the accelerator nozzle 5 to protect them from high temperatures, and the cooling jackets 2 6 a and 2 6 b are also provided around the anode torches 3 a and 3 b. Is provided.
- the thermal spray particles 5 which are carried by the plasma jet 40 a, strike the base material 53 and form a thermal spray film 52.
- the thermal spray output is It is preferable to set it to 40 kW or more and 110 kW or less.
- anode-separated plasma spraying device as shown in Fig. 1, it is possible to inject the raw material into the plasma arc generating part at the highest temperature. It is possible to completely melt the ceramic material. On the other hand, in the anode-integrated thermal spraying apparatus, since the raw material cannot be supplied to the plasma arc generating part due to the apparatus configuration, the raw material may not be sufficiently melted.
- anode separation type thermal spraying apparatus since the anode is separated and the output applied to one anode can be halved, the output can be increased. Therefore, the raw material can be melted more uniformly, the denseness of the sprayed film can be improved, and the maximum void diameter can be reduced.
- the anode-integrated spraying device if the power applied to the anode is increased, the power cannot be withstood and the spraying device may be damaged.
- the ceramic raw material used for thermal spraying is preferably a powder or a conical granule having a certain bulk density.
- the bulk density of the raw material is low, the raw material is light and the raw material does not enter the plasma frame, and the film is formed in an insufficiently melted state, which makes it difficult to form a dense film. Diameter control is also difficult.
- the raw material density is low and pores exist at the raw material stage, they are transferred to the sprayed film, and a finely sprayed film cannot be formed. Therefore, the bulk density of the raw material, for the Y 2 O 3, 1. 5 g Roh cm 3 or more laid preferred, 1. S g Z cm 3 or more Ri preferably good, the upper limit is 3.
- O g / cm 3 Desirable to be as follows.
- the bulk density of A 1 2 O 3 is 1.0 g cm 3 is preferable, 1.2 g / cm 3 or more is more preferable, and the upper limit is desirably 2.4 g Z cm 3 or less.
- the raw material used for thermal spraying is insufficiently dried, the water adsorbed by the raw material will clog the raw material in the raw material feeder, resulting in unstable supply and insufficient raw material melting. As a result, coarse voids are likely to occur in the film. For this reason, the raw material has a moisture content of 1 mass in advance. It is preferable to use one that has been dried to below 0 . In addition, since the probability that voids are generated due to water evaporation from the raw material during thermal spraying, the water content of the raw material is more preferably 0.5% by mass or less.
- the moisture content can be reduced to approximately 1 mass% or lower. Yes, it is possible to reduce the moisture content to approximately 0.5% by mass or less by heating at a temperature of 25 ° C. or higher for 12 hours or longer.
- a surface-treated material such as blast can be used. It is preferable to thoroughly wash the base material after blasting to cleanly remove the blast material and shavings adhering to the surface. If these debris remain on the substrate surface, the adhesive strength of the film will decrease, which is preferable.
- Density is 80% or more, maximum void diameter is 25 ⁇ m or less, residual pores are small, dense, close to the substrate, excellent in mechanical resistance, and etched It is possible to obtain a film having high resistance to bending.
- a 1 base material (JIS 60 6 1) with a surface roughness Ra> 4 m, and use a different type of thermal spraying device to form a Y 2 O 3 sprayed coating. It was.
- a thermal spraying apparatus (see Fig. 1) having two anodic torches separated from each other, a thermal spraying apparatus in which the anodic torch is integrated, and a high-speed frame spraying (HVOF) apparatus were used. .
- the production conditions of the sprayed film are shown in Table 1 and Table 1 and the drying temperature, drying time, moisture content and bulk density of the raw material (granular), sprayed film thickness and spray power (15 to 110 kW).
- Examples 1 to 8 and Comparative Examples 1 to 9 were changed as shown in Table 2.
- film forming properties, relative density, porosity, maximum void diameter, etching rate, adhesion strength degradation due to plasma irradiation, and adhesion strength degradation due to pure water ultrasonic cleaning after plasma irradiation are as follows: Evaluation was performed by the method shown in. The results are also shown in Tables 1 and 2.
- Deposition was confirmed by confirming film delamination after spraying, ⁇ for samples that did not delaminate after spraying, ⁇ for samples with partial delamination, and X for samples with complete delamination after spraying.
- the relative density was calculated by (bulk density) ⁇ (theoretical density) after peeling only the sprayed film from the substrate and measuring the bulk density by the Archimedes method.
- the porosity was calculated based on the relative density.
- ⁇ Maximum void diameter> Regarding the maximum void diameter, after polishing the surface of the sprayed film, it was set to the largest void diameter when the surface was arbitrarily observed with a scanning microscope at a magnification of X500 times 10 fields. .
- etching rate after polishing the test plate surface, mask part of the polished surface with polyimide tape, perform RIE (Reactive Ion Etching), and measure the difference between the part with and without the mask.
- FIG. 2 shows the schematic configuration of the RIE system used in this etching test.
- This RIE apparatus 101 is configured as a parallel plate type RIE apparatus in which a pair of electrode plates face each other vertically and in parallel.
- the RIE apparatus 10 1 has a susceptor 10 3 which is a mounting table for the test plate TP and also functions as a lower electrode in the chamber 1 102. In this test, a susceptor 10 3 having a diameter L 2 of 4 8 O mm was used.
- a shutter head 10 5 which functions as an upper electrode so as to face the susceptor 10 3 in parallel. Spacing between the susceptor 1 0 3 and the shower head 1 0 5 (The gap between the electrodes can be adjusted by an elevating mechanism not shown.
- the shower head 1 0 5 has a gas supply pipe. 1 0 8 is connected, and this gas supply pipe 1 0 8 is branched upstream of the valve 1 0 9 and connected to the CF 4 gas supply source 1 1 0 and the O 2 gas supply source 1 1 1.
- the pipes from these gas supply sources are each provided with flow rate adjusting means (not shown) so that the flow rates of CF 4 gas and 0 2 gas as the etching gas can be adjusted.
- Etching gas reaches the gas supply chamber 10 07 in the shower head 10 5 through the gas supply pipe 10 8 and is discharged evenly from the gas discharge ports 10 6. Is done.
- a high frequency power source 1 1 2 is connected to the susceptor 10 3 functioning as the lower electrode via a matching unit (not shown).
- the high frequency power source 1 1 2 has a frequency of, for example, 1 3.5 6 MHz.
- the high frequency power can be supplied to the susceptor 10 3 as the lower electrode.
- An exhaust port 104 is formed at the bottom of the chamber 1102, and is configured so that the inside of the chamber 1102 can be evacuated to a predetermined reduced pressure atmosphere using a vacuum pump (not shown).
- Adhesion strength degradation (%) X 1 0 0
- the sprayed film may be peeled off during the process, so it is preferably 30% or less.
- Deterioration of adhesion strength due to pure water ultrasonic waves can be measured using the five test pieces ( ⁇ 25 5) after the plasma treatment under the above conditions and before and after cleaning with pure water ultrasonic waves. mm)) under the condition of tensile speed 1 mm Z min, and after obtaining the average value,
- the sprayed film may be peeled off during the process, so it is preferably 30% or less.
- Samples that can be deposited are o, samples that are partially peeled off during deposition, and samples that cannot be deposited are X
- a raw material having a bulk density of 1.8 g / cm 3 or more was heated at a temperature of 100 ° C. or more for 12 hours or more, and the water content was reduced to 0.5% by mass or less.
- the film thickness is 100 to 300 ⁇ m by spraying with a thermal spraying device equipped with two anode torches at 40 kW to: ll O kW power. Since the sprayed film was formed, the melting of the raw material progressed, and it was confirmed that the relative density was 90% or more, the maximum void diameter was 15 ⁇ m or less, and the etching rate was 3 ⁇ m / min or less. .
- Comparative Example 3 using a raw material having a low bulk density, the maximum void diameter was large, the etching rate was high, and the adhesion strength was significantly deteriorated. In the adhesion strength test after pure water ultrasonic cleaning, peeling was observed. occured. In Comparative Example 4 where the thermal spray output is low, The film formation was poor and the etching rate was high.
- Comparative Examples 5 to 7 using the canopy-type thermal spraying apparatus the maximum void diameter was large, the etching rate was high, and the adhesion strength was significantly deteriorated.
- Comparative Example 9 using an HV OF (high-speed flame spraying) device, the maximum void diameter was small, but the relative density was low and the etching speed was high.
- the film thickness is 10 000 to 30 000 ⁇ m by spraying with 40 kW to l 1 O kW output with a thermal spraying device equipped with two anode torches. Since the sprayed film of m was formed, the melting of the raw material progressed, the relative density was 90% or more, the maximum void diameter was 15 ⁇ m or less, and the etching rate was 15 ⁇ m / min or less. confirmed.
- Comparative Example 12 using a raw material with a low bulk density, the maximum void diameter was large, the etching rate was high, and the adhesion strength was significantly deteriorated, and the adhesion strength test after pure water ultrasonic cleaning was performed. Then, peeling occurred.
- Comparative Examples 1 and 3 with low spraying power the film-forming property was poor and the etching rate was high.
- Comparative Examples 14 and 15 using an anodic integrated spraying device the maximum void diameter was large, the etching rate was high, and the adhesion strength deteriorated significantly.
- Comparative Examples 16 and 17 using an anode-integrated thermal spraying apparatus and using a raw material having a relatively low thermal spray output and a high bulk density film formation was impossible.
- Comparative Example 18 using the HVOF (high-speed flame spraying) apparatus the maximum void diameter was small, but the etching rate was high. Table 3
- Samples that can be deposited are marked as ⁇ , samples that were partially peeled off during deposition, and samples that could not be deposited as X.
- the corrosion-resistant member of the present invention can be suitably used in a manufacturing process of, for example, a semiconductor device or a liquid crystal device.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/665,230 US20080032115A1 (en) | 2004-10-18 | 2005-09-30 | Corrosion-Resistant Member and Method for Manufacture Thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-302889 | 2004-10-18 | ||
JP2004302889 | 2004-10-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006043429A1 true WO2006043429A1 (ja) | 2006-04-27 |
Family
ID=36202847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/018593 WO2006043429A1 (ja) | 2004-10-18 | 2005-09-30 | 耐食性部材およびその製造方法 |
Country Status (2)
Country | Link |
---|---|
US (1) | US20080032115A1 (ja) |
WO (1) | WO2006043429A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9850573B1 (en) | 2016-06-23 | 2017-12-26 | Applied Materials, Inc. | Non-line of sight deposition of erbium based plasma resistant ceramic coating |
US10975469B2 (en) | 2017-03-17 | 2021-04-13 | Applied Materials, Inc. | Plasma resistant coating of porous body by atomic layer deposition |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001164354A (ja) * | 1999-12-10 | 2001-06-19 | Tocalo Co Ltd | プラズマ処理容器内部材およびその製造方法 |
JP2002363724A (ja) * | 2001-03-08 | 2002-12-18 | Shin Etsu Chem Co Ltd | 溶射用球状粒子および溶射部材 |
JP2003095649A (ja) * | 2001-07-19 | 2003-04-03 | Ngk Insulators Ltd | イットリア−アルミナ複合酸化物膜の製造方法、イットリア−アルミナ複合酸化物膜、溶射膜、耐蝕性部材および低パーティクル部材 |
JP2004010981A (ja) * | 2002-06-07 | 2004-01-15 | Nihon Ceratec Co Ltd | 耐食性部材およびその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5254295A (en) * | 1992-12-04 | 1993-10-19 | Caterpillar Inc. | Method for forming reinforced powder particles |
JP2001244320A (ja) * | 2000-02-25 | 2001-09-07 | Ibiden Co Ltd | セラミック基板およびその製造方法 |
EP1239055B1 (en) * | 2001-03-08 | 2017-03-01 | Shin-Etsu Chemical Co., Ltd. | Thermal spray spherical particles, and sprayed components |
-
2005
- 2005-09-30 US US11/665,230 patent/US20080032115A1/en not_active Abandoned
- 2005-09-30 WO PCT/JP2005/018593 patent/WO2006043429A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001164354A (ja) * | 1999-12-10 | 2001-06-19 | Tocalo Co Ltd | プラズマ処理容器内部材およびその製造方法 |
JP2002363724A (ja) * | 2001-03-08 | 2002-12-18 | Shin Etsu Chem Co Ltd | 溶射用球状粒子および溶射部材 |
JP2003095649A (ja) * | 2001-07-19 | 2003-04-03 | Ngk Insulators Ltd | イットリア−アルミナ複合酸化物膜の製造方法、イットリア−アルミナ複合酸化物膜、溶射膜、耐蝕性部材および低パーティクル部材 |
JP2004010981A (ja) * | 2002-06-07 | 2004-01-15 | Nihon Ceratec Co Ltd | 耐食性部材およびその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US20080032115A1 (en) | 2008-02-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TWI616558B (zh) | 電漿處理裝置用的零件的製造方法 | |
JP6082345B2 (ja) | 半導体用途のための溶射コーティング | |
WO2015151857A1 (ja) | 耐プラズマ部品及び耐プラズマ部品の製造方法及び耐プラズマ部品の製造に用いる膜堆積装置 | |
JP4905697B2 (ja) | 導電性耐プラズマ部材 | |
JP3649210B2 (ja) | 耐食性部材 | |
US20170233860A1 (en) | Manufacturing method for component in plasma processing apparatus | |
TW201544484A (zh) | 耐電漿陶瓷塗層的漿料電漿噴塗 | |
US6682627B2 (en) | Process chamber having a corrosion-resistant wall and method | |
TW200847272A (en) | Aluminum-plated components of semiconductor material processing apparatuses and methods of manufacturing the components | |
JP2012191200A (ja) | プラズマ処理装置 | |
CN102210196A (zh) | 用于等离子腔室部件的抗等离子涂层 | |
TW200949013A (en) | Ceramic sprayed member, making method, abrasive medium for use therewith | |
US7531232B2 (en) | Component for vacuum apparatus, production method thereof and apparatus using the same | |
JP5566891B2 (ja) | 半導体製造装置用部品及び半導体製造装置 | |
JP6005314B1 (ja) | 皮膜付き基材、プラズマエッチング装置用部品およびそれらの製造方法 | |
JP5137304B2 (ja) | 耐食性部材およびその製造方法 | |
KR101094725B1 (ko) | 산화이트륨 코팅막 및 산화이트륨 코팅방법 | |
JP2010106317A (ja) | 耐食性部材 | |
JP4680681B2 (ja) | 耐食性部材およびその製造方法 | |
JP4181069B2 (ja) | プラズマ処理装置 | |
WO2006043429A1 (ja) | 耐食性部材およびその製造方法 | |
JP5412290B2 (ja) | 耐食性部材 | |
JP2004002101A (ja) | 耐プラズマ性部材及びその製造方法 | |
TW202219308A (zh) | 利用低溫氟化的金屬氧化物 | |
US20220013336A1 (en) | Process kit with protective ceramic coatings for hydrogen and nh3 plasma application |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV LY MA MD MG MK MN MW MX MZ NA NG NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): BW GH GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU LV MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
WWE | Wipo information: entry into national phase |
Ref document number: 11665230 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 05790130 Country of ref document: EP Kind code of ref document: A1 |
|
WWP | Wipo information: published in national office |
Ref document number: 11665230 Country of ref document: US |