WO2016072724A1 - 플라즈마 내식각성이 향상된 공정부품 및 공정부품의 플라즈마 내식각성 강화 처리 방법 - Google Patents
플라즈마 내식각성이 향상된 공정부품 및 공정부품의 플라즈마 내식각성 강화 처리 방법 Download PDFInfo
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- WO2016072724A1 WO2016072724A1 PCT/KR2015/011755 KR2015011755W WO2016072724A1 WO 2016072724 A1 WO2016072724 A1 WO 2016072724A1 KR 2015011755 W KR2015011755 W KR 2015011755W WO 2016072724 A1 WO2016072724 A1 WO 2016072724A1
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- coating film
- plasma
- peaks
- valleys
- process part
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- 238000012545 processing Methods 0.000 title abstract description 15
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- 238000001020 plasma etching Methods 0.000 claims description 51
- 238000005524 ceramic coating Methods 0.000 claims description 34
- 239000011247 coating layer Substances 0.000 claims description 21
- 238000000879 optical micrograph Methods 0.000 claims description 17
- 238000004439 roughness measurement Methods 0.000 claims description 13
- RUDFQVOCFDJEEF-UHFFFAOYSA-N yttrium(III) oxide Inorganic materials [O-2].[O-2].[O-2].[Y+3].[Y+3] RUDFQVOCFDJEEF-UHFFFAOYSA-N 0.000 claims description 13
- 238000005507 spraying Methods 0.000 claims description 12
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- 238000005728 strengthening Methods 0.000 claims description 6
- 229940105963 yttrium fluoride Drugs 0.000 claims description 5
- RBORBHYCVONNJH-UHFFFAOYSA-K yttrium(iii) fluoride Chemical compound F[Y](F)F RBORBHYCVONNJH-UHFFFAOYSA-K 0.000 claims description 5
- 238000005260 corrosion Methods 0.000 claims description 4
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- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 13
- 239000010410 layer Substances 0.000 description 9
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- 238000005422 blasting Methods 0.000 description 3
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
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- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 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
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- SIWVEOZUMHYXCS-UHFFFAOYSA-N oxo(oxoyttriooxy)yttrium Chemical compound O=[Y]O[Y]=O SIWVEOZUMHYXCS-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
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- 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
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- 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
- C23C24/00—Coating starting from inorganic powder
- C23C24/02—Coating starting from inorganic powder by application of pressure only
- C23C24/04—Impact or kinetic deposition of particles
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- 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
- C23C4/02—Pretreatment of the material to be coated, e.g. for coating on selected surface areas
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- 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
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32458—Vessel
- H01J37/32477—Vessel characterised by the means for protecting vessels or internal parts, e.g. coatings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32431—Constructional details of the reactor
- H01J37/32458—Vessel
- H01J37/32477—Vessel characterised by the means for protecting vessels or internal parts, e.g. coatings
- H01J37/32495—Means for protecting the vessel against plasma
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
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- H—ELECTRICITY
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/768—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics
- H01L21/76801—Applying interconnections to be used for carrying current between separate components within a device comprising conductors and dielectrics characterised by the formation and the after-treatment of the dielectrics, e.g. smoothing
- H01L21/76822—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc.
- H01L21/76825—Modification of the material of dielectric layers, e.g. grading, after-treatment to improve the stability of the layers, to increase their density etc. by exposing the layer to particle radiation, e.g. ion implantation, irradiation with UV light or electrons etc.
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- H—ELECTRICITY
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67069—Apparatus for fluid treatment for etching for drying etching
Definitions
- the present invention is to solve the problem that the process parts of the semiconductor or display manufacturing equipment is exposed to the plasma etching, the bone of the surface before and after the ceramic powder coating (the surface of the main body and the coating film) of the process parts (
- the present invention relates to a method for improving plasma etching resistance by removing valleys and peaks, and to a process component having improved plasma etching resistance.
- the present invention relates to a method for improving the plasma etch resistance of a semiconductor or display manufacturing equipment process part, and to a process part with improved plasma etch resistance formed by the method.
- plasma etching is developed at the valleys and peaks of the coating layer to protect the process parts from the plasma environment, thereby improving semiconductor and display manufacturing productivity and yield. It is to let.
- the conventional technology for improving plasma etching resistance of semiconductor or display manufacturing equipment process parts is as follows.
- Korean Patent No. 10-0938474 Low Temperature Aerosol Deposition of Plasma Protective Layer
- US Patent No. 7,479,464 Low temperature aerosol deposition of plasma resistive layer
- This technique is a technique for forming a bonding layer between the substrate surface and the plasma resistive layer to prevent cracking or shrinkage in the plasma resistive layer of yttrium oxide during the plasma process.
- Korean Patent Publication No. 10-2013-0044170 “Components of Plasma Processing Chambers with Textured Plasma Resistant Coatings” and US Patent Publication US 2013/0102156 "Components of plasma processing chambers having textured plasma resistant coatings” include aerosol deposition on the surface of process components.
- this technique is a technique for forming a yttria coating film on the process parts by using an aerosol deposition method, and then performing polishing, without using a separate process such as the bonding layer of the above-described US Patent US 7,479,464 technology. Since the yttria coating film is formed on the process part by use, and the coating film is polished, the valleys and peaks on the surface of the process part before coating appear on the surface of the coating film. Therefore, in order to remove the coating surface surface valleys and peaks, many coating film thicknesses must be removed, and thus, there is a disadvantage in that a large coating film thickness must be formed during coating. In addition, the coating film formed by coating without removing the valleys and peaks on the surface of the process part before coating has a disadvantage in that plasma etching resistance is lowered as described above.
- Patent Document 1 Republic of Korea Patent Registration 10-0607790 "Processing chamber and a component having a textured inner surface and its manufacturing method"
- Patent Document 2 United States Patent US 6,933,025 "Chamber having components with textured surfaces and method of manufacture"
- Patent Document 3 3. Republic of Korea Patent 10-0938474 "Deposition of low temperature aerosol of the plasma protective layer"
- Patent Document 4 4. US Patent US 7,479,464 "Low temperature aerosol deposition of plasma resistive layer"
- Patent Document 5 The Republic of Korea Patent Publication 10-2013-0044170 "Component of the plasma processing chamber having a textured plasma coating"
- Patent Document 6 United States Patent Application Publication US 2013/0102156 "Components of plasma processing chambers having textured plasma resistant coatings"
- Patent Document 7 United States Patent Application Publication US 2013/0273327 "Ceramic coated article and process for applying ceramic coating"
- Patent Document 8 8. Republic of Korea Patent Publication 10-2014-0100030 "Surface treatment method and ceramic structure using the same"
- An object of the present invention is to provide a method for improving plasma etching resistance of semiconductor and display manufacturing equipment process parts, and a process part for improving plasma etching resistance formed by the method.
- the valleys and peaks on the surface of the process parts are removed before the ceramic coating film is formed on the process parts.
- the surface roughness Rz value of the coating film or the microscopic surface photograph By controlling the area ratio between the light and dark areas, plasma etching resistance developed at the valleys and peaks of the ceramic coating layer surface can be improved.
- plasma etching resistance may be further improved.
- the present invention is a process component for semiconductor or display manufacturing equipment exposed to plasma, wherein a ceramic coating film is formed on the surface of the process part body from which part or all of the valleys and peaks are removed, and the bone is formed on the surface of the coating film. and a process component having improved plasma etch resistance, wherein part or all of a valley and a peak are removed.
- the present invention also provides a method for improving plasma etching resistance of semiconductor or display manufacturing equipment process parts exposed to plasma, comprising the steps of: (a) preparing a process part; (b) removing some or all of the valleys and peaks from the surface of the process component body; (c) forming a ceramic coating film on the surface of the process part body; And (d) removing some or all of the valleys and peaks from the surface of the coating film; Plasma etching resistance strengthening treatment method of a process component comprising a.
- Plasma etching resistance of semiconductor or display manufacturing equipment process parts exposed to plasma can be improved.
- 1 is a 1,200 times magnification optical micrograph of the surface of an alumina ceramic component, showing that some valleys and peaks of the ceramic surface are removed such that the surface roughness Rz is less than 5.0 ⁇ m (a) And state (b) in which the valleys and the peaks were removed relatively more so that the surface roughness Rz was 3.0 ⁇ m or less.
- FIG. 2 is a 1,200 times optical microscope photograph of the surface of a coating film coated with yttria (Y 2 O 3 ) on the surface of an alumina ceramic component, wherein the surface roughness Rz is less than 2.0 ⁇ m, and The peak (a) is removed, and the surface roughness Rz is 1.0 ⁇ m or less, and the valley and the peak are relatively more removed (b).
- FIG. 3 is a process flowchart of a method for improving plasma etching resistance of semiconductor or display manufacturing equipment process parts exposed to plasma.
- FIG. 5 is yttria (Y 2 O 3 is an alumina ceramic surface of the part (a), an alumina ceramic component of bone and a peak has been removed a portion (b) and valleys on the surface and a peak formed in an alumina ceramic surface of the part to remove a portion ) 1,200 times magnification optical micrograph of the coating film surface (c), respectively.
- FIG. 6 is a table showing surface roughness Rz values of (a) to (c) of FIG. 5.
- FIG. 7 is a 1,200 times magnification optical micrograph showing a state in which the valleys and peaks are partially removed from the surface of the alumina ceramic component (a) and the surface of the Y 2 O 3 coating film formed on the surface of the alumina ceramic components in which the valleys and peaks are partially removed. (B) shows the valleys and peaks partially removed.
- FIG. 8 is a table showing surface roughness Rz values of FIGS. 7A and 7B.
- FIG. 9 is a magnification 1,200 times optical micrograph showing the surface of the Y 2 O 3 coating film formed by performing a blast (blast) on the surface of the alumina ceramic component and then spray coating.
- FIG. 10 is a table showing surface roughness Rz values of the thermal sprayed coating film shown in FIG. 9.
- FIG. 11 is a process flow diagram related to another method of improving plasma etch resistance of semiconductor or display manufacturing equipment process components exposed to plasma.
- FIG. 13 is a table showing surface roughness Rz values of (a) and (b) in FIG. 12.
- FIG. 14 is a 1,200 times magnification optical micrograph, in which the valleys and peaks of the quartz surface are partially removed (a), and the yttria formed on the quartz surface from which the valleys and peaks of the surface are partially removed (Y 2); O 3 ) shows a state (c) in which the valleys and peaks of the surface of the yttria (Y 2 O 3 ) coating layer formed on the surface of the coating film (b) and the quartz surface from which the valleys and peaks of the surface are partially removed.
- FIG. 15 is a table showing surface roughness Rz values of (a) to (c) of FIG. 14.
- a process component for semiconductor or display manufacturing equipment exposed to plasma which is parallel to a center line (mean line) where the peak and valley areas are equal within the surface roughness measurement interval.
- distance value average ((V1 + V2 + V3 + V4 + V5) / 5) and the highest peak from the datum line to the 5 deepest valleys (V1.V2, V3, V4, V5) in the surface roughness measurement section Absolute value (((P1 + P2 + P3 + P4 + P5) / 5- (V1 + V2 + V3 + V4 + V5) for the difference of the mean of the distance values up to five (P1, P2, P3, P4, P5) ) / 5])
- a ceramic coating film is formed on the surface of the main body of the process part with the bones and peaks removed or partially so that the surface roughness (Rz) value expressed by the surface roughness (Rz) is less than 5.0 ⁇ m, and the bones on the surface of the coating film Some or all of the peaks are removed, but the coating layer is
- a method of improving plasma etching resistance of semiconductor or display manufacturing equipment process parts exposed to plasma comprising: (a) preparing a process part; (b) the surface roughness measurement interval from an arbitrarily datum line parallel to the center line (mean line) where the area of the peak and valley is equal within the surface roughness measurement interval.
- Distance value average ((V1 + V2 + V3 + V4 + V5) / 5) to five deep valleys (V1.V2, V3, V4, V5) and the highest five peaks (P1, P2, P3, P4, Surface roughness expressed as an absolute value ([(P1 + P2 + P3 + P4 + P5) / 5- (V1 + V2 + V3 + V4 + V5) / 5]) with respect to the difference between the mean values of the distances to P5).
- step (c) is Y 2 O 3 (yttria), YF 3 (yttrium fluoride), YSZ (Y 2 O 3 stabilized ZrO 2 ), Y 4 Al 2 O 9 at 0 ⁇ 60 °C and vacuum conditions (YAM), Y 3 Al 5 O 12 (YAG) and YAlO 3 (YAP) any one or two or more is characterized in that the coating film is formed by spraying a ceramic powder, the step (d) is the coating film The surface roughness (Rz) value of less than 2.0 ⁇ m, the plasma etching resistance strengthening treatment method of the process component.
- the present invention is a process component for semiconductor or display manufacturing equipment exposed to plasma, which is parallel to a center line (mean line) where the area of peak and valley is equal within the surface roughness measurement interval.
- the average distance value ((V1 + V2 + V3 + V4 + V5) / 5 from the arbitrary datum line to the five deepest valleys (V1.V2, V3, V4, V5) in the surface roughness measurement interval; Absolute value (((P1 + P2 + P3 + P4 + P5) / 5- (V1 + V2 + V3 +) for the difference of the mean of the distances to the five highest peaks (P1, P2, P3, P4, P5) V4 + V5) / 5]), a ceramic coating film is formed on the surface of the main body of the process part with the valleys and peaks removed or partially so that the surface roughness (Rz) value represented by V4 + V5) / 5]) is less than 5.0 ⁇ m and is present on the surface of the coating film.
- the process part of the present invention is made of one or more of ceramic, quartz, metal material, and polymer. Ceramic powder is sprayed on the surface of the process part to form a coating film. Ceramic powder forming the coating layer is Y 2 O 3 (yttria), YF 3 (yttrium fluoride), Y 2 O 3 stabilized ZrO 2 (YSZ), Y 4 Al 2 O 9 (YAM) excellent in the resistance to plasma.
- YAG Y 3 Al 5 O 12
- YAP YAlO 3
- the ceramic powder is preferably applied to 99% or more purity.
- the coating film is sprayed the ceramic powder at 0 ⁇ 60 °C and vacuum conditions (b) of Figure 2, Figure 7 (b), Figure 12 (b), Figure 14 of ( As shown in b) and (c), it can be formed to be free of pores and cracks.
- the valleys and peaks present on the surface of the main body of the process part serve as a cause of plasma etching even after the ceramic coating layer is formed. Accordingly, the plasma etch rate may be lowered by removing some or all of the valleys and peaks on the surface of the process component body.
- the valleys and peaks present on the surface of the coating film formed by forming the coating film formed by the spray coating of the ceramic powder on the surface of the process part also act as a cause of plasma etching. Accordingly, by removing some or all of the valleys and peaks on the surface of the coating layer, plasma etching rate may be further lowered.
- the thickness of the coating film may be 2.0 to 15 ⁇ m.
- the initial thickness of the coating film after coating is formed to 3.0 ⁇ 20 ⁇ m, the thickness of the coating film by removing the valleys and peaks of the coating film 2.0 ⁇ Plasma etching resistance can be improved by maintaining at 15 micrometers.
- the degree of removal of valleys and peaks from the surface of the main body of the process part (before the coating layer) and the surface of the coating layer may be quantified by calculating surface roughness Rz or analyzing an optical micrograph.
- the surface roughness Rz when used as a reference, when Rz of the surface of the main body of the process part is less than 5.0 ⁇ m, it contributes to the improvement of the plasma etching resistance.
- ceramic process parts are generally made of sintering, and the surface roughness Rz of such a sintered product is formed to 5.0 ⁇ m or more, and when the valleys and peaks of the surface of the sintered product are removed, the surface of the sintered product Roughness Rz may be reduced to less than 5.0 ⁇ m to reduce plasma etching that develops in valleys and peaks.
- quartz quartz
- the surface of a metallic material process part such as aluminum is generally formed in a uniform pattern or irregular pattern, and has a surface roughness Rz of 5.0 ⁇ m or more, and removes valleys and peaks (pattern or pattern) on the surface of such process part.
- the surface roughness Rz of the process part is reduced to less than 5.0 ⁇ m.
- the Rz of the surface of the ceramic coating film formed on the surface of the process part main body contributes to the improvement of the plasma etching resistance when it is less than 2.0 ⁇ m.
- surface roughness Rz is more than 2.498 ⁇ 3.289 ⁇ m 2.0 ⁇ m a value as shown in (c) of [5]
- the surface roughness Rz of the coating film is formed to be less than 2.0 ⁇ m, valleys and peaks on the surface of the coating film It is possible to reduce the plasma etching developed in the.
- Rz It is possible to determine whether or not to proceed with the surface treatment based on 5.0 ⁇ m (surface roughness of the surface of the main body of the process part before coating) and Rz 2.0 ⁇ m (surface roughness of the coating film).
- the optical micrograph analysis criteria are as follows.
- the optical micrograph of the surface of the coating film is divided into light and dark parts according to relative brightness, when the light area becomes 10% or more based on the dark area, it contributes to the improvement of plasma etching resistance. do.
- the optical micrograph of the surface of the main body of the process part when the roux area becomes 10% or more based on the dark portion area, it contributes to the improvement of the plasma etching resistance.
- the rosters 20 and 40 are flattened by the combined removal method of the valleys and peaks so that the light is reflected and appears bright, and the bright part If much appears, it means that the surface of the main body of the process part or the surface of the ceramic coating film of the process part becomes flat.
- the surface roughness Rz has a value of less than 5.0 ⁇ m (the Rz value is small), and the plasma etching resistance is improved. do.
- the surface roughness measurement interval is determined from an arbitrary datum line parallel to a center line (mean line) where the area of the peak and valley is the same within the surface roughness measurement interval.
- Distance value average ((V1 + V2 + V3 + V4 + V5) / 5) to the five deepest valleys (V1.V2, V3, V4, V5) and five highest peaks (P1, P2, P3, P4)
- Surface roughness expressed as an absolute value ([(P1 + P2 + P3 + P4 + P5) / 5- (V1 + V2 + V3 + V4 + V5) / 5]) with respect to the difference between the mean values of the distances to P5) And removing some or all of the valleys and peaks from the surface of the process part body so that the (Rz) value is less than 5.0 ⁇ m.
- any one of cutting, grinding, brushing, polishing, lapping, and chemical polishing is applied. Or a combination of two or more methods.
- step (c) by spraying the ceramic powder at 0 to 60 ° C. and vacuum conditions, cracks and pores may not be generated in the ceramic coating layer.
- the ceramic powder any one or two or more of Y 2 O 3 , YF 3 , YSZ, Y 4 Al 2 O 9 , Y 3 Al 5 O 12, and YAlO 3 may be applied.
- Whether the process of removing the bones and peaks from the process part body surface (before the coating film is formed) and the surface of the coating film is progressed, and the amount of work may be determined through surface roughness Rz or optical micrograph analysis.
- Figure 3 schematically shows the progress of the step according to the surface roughness.
- step (b) the surface roughness Rz of the main body of the process part is less than 5.0 ⁇ m, and in step (d), the bone and peak are removed so that the surface roughness Rz of the coating film is less than 2.0 ⁇ m. To proceed.
- the surface roughness Rz of the process part main body is checked, and if the surface roughness Rz of the process part main body is 5.0 ⁇ m or more, the surface roughness of the process part main body so that the surface roughness Rz is less than 5.0 ⁇ m (Work to remove valleys and peaks. Further, in the step (d), the valleys and peaks on the surface of the ceramic coating film are removed so that the surface roughness Rz of the surface of the ceramic coating film is less than 2.0 ⁇ m.
- the surface roughness Rz of the main body of the process part is 5.0 ⁇ m or more ((a) in Fig. 5), (b) of Fig. 5
- the peak and valleys are partially removed to adjust the surface roughness Rz of the process part to less than 5.0 ⁇ m, and spray coating the ceramic powder as shown in (c) of FIG. 5 to form a coating layer free of pores and cracks.
- the ceramic coating film surface roughness Rz of the process part is formed to be 2.0 ⁇ m or more.
- the plasma etching resistance is much higher than that shown in (c) of FIG. 5. Gets bigger
- the coating film is formed in the state (a) of FIG. 7 has a much higher plasma etching resistance than the coating film is formed in the state (b) of FIG. 5, and Rz as shown in (a) of FIG. When a small value of less than 5.0 ⁇ m When the coating film is formed as shown in (b) of FIG. 7 after the Rz of the coating film is less than 2.0 ⁇ m, the coating film of the process component is much more plasma etch resistance.
- Patents 10-2013-0044170 “Components of Plasma Processing Chambers with Textured Plasma Resistant Coatings”
- US Patent Publication US 2013/0102156 “Components of plasma processing chambers having textured plasma resistant coatings” 50% or more is better than the plasma etch resistance of the coating film in which the yttria coating film is formed without the peak removed. That is, if the process component according to US 2013/0102156 can be used for 6,000 hours after being exposed to plasma, it means that the process part according to the present invention can be used after being exposed to plasma for 12,000 hours or more.
- the surface roughness Rz of the ceramic coating film should be made as small as possible by removing valleys and peaks on the surface of the coating film. This is because the smaller the surface roughness Rz of the pre-coating process part and the surface roughness Rz of the post-coating process part ceramic coating film, the greater the plasma etching resistance.
- the reason why the surface of the process part and the Rz value of the coating film cannot be reduced indefinitely is that the surface treatment time of the process part and the coating film thickness (initial thickness) of the process part cannot be increased indefinitely. Therefore, the surface roughness Rz value should be adjusted in consideration of the surface condition of the main body of the process part before coating and the thickness of the ceramic coating film after coating.
- step (b) may be omitted and subsequent steps may be sequentially performed.
- step (b) the optical micrograph of the surface of the main body of the process part is divided into roux and dark portions according to relative brightness, and the roux area Y based on the dark portion area X. ) Is 10% or more, and in step (d), the optical micrograph of the surface of the coating film is divided into roux and dark portions according to relative brightness, so that the roux area is 10% or more based on the dark portion area.
- FIG. 1 in an optical microscope photograph of the surface of the process part main body (before forming the coating film), ⁇ area Y of area 20 / area Y of arm 10 ⁇ That is, it may be confirmed that Y / X is less than 10%, and if less than 10%, the valleys and peaks on the surface of the main body of the process part may be removed.
- FIG. 2 in the micrograph showing the surface of the ceramic coating film of the process part, ⁇ area Y of area 40 / area X of arm 30 ⁇ , that is, Y / X is 10. It may be confirmed that the percentage is greater than or equal to 10%, and the valleys and peaks on the surface of the ceramic coating layer of the process part may be removed to improve plasma etching resistance.
- step (b) may be omitted and proceed to the next step.
- the surface roughness Rz of the coating film is The Rz value is distributed in the range of 2.103 to 2.311 ⁇ m ((b) of FIG. 14) of 2.0 ⁇ m or more, and the surface roughness Rz value of the coating layer is 2.0 ⁇ m by removing valleys and peaks on the surface of the coating layer having the Rz value of 2.0 ⁇ m or more. If it is adjusted to less than ((c) of FIG. 14, the surface roughness Rz is 0.254-0.389 ⁇ m), plasma etching resistance of the ceramic coating film of the process part may be improved.
- the present invention provides a method for improving plasma etch resistance through removal of valleys and peaks on the front and back surfaces of the ceramic powder coating on the process parts (the surface of the process part body and the surface of the coating film) and thereby the plasma.
- the present invention relates to a process part with improved corrosion resistance, and solves the problem of etching process parts of semiconductor or display manufacturing equipment by exposure to plasma.
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Abstract
Description
Claims (12)
- 플라즈마에 노출되는 반도체 또는 디스플레이 제조장비 공정부품으로서,표면조도 측정 구간 내에서 피크(Peak)와 골(valley)의 면적이 같아지는 중심선(center line; mean line)과 평행한 임의의 기준선(arbitrary datum line)으로부터 상기 표면조도 측정 구간 내 가장 깊은 골 5개(V1. V2, V3, V4, V5)까지의 거리값 평균((V1+V2+V3+V4+V5)/5)과 가장 높은 피크 5개(P1, P2, P3, P4, P5)까지의 거리값 평균의 차에 대한 절대값([(P1+P2+P3+P4+P5)/5-(V1+V2+V3+V4+V5)/5])으로 표현되는 표면조도(Rz) 값이 5.0㎛ 미만이 되도록 골과 피크를 일부 또는 전체를 제거한 상태의 공정부품 본체 표면에 세라믹 코팅막이 형성되고, 상기 코팅막 표면에 존재하는 골과 피크의 일부 또는 전부가 제거된 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제1항에서,상기 코팅막은 Y2O3(yttria), YF3(yttrium fluoride), YSZ(Y2O3 stabilized ZrO2), Y4Al2O9(YAM), Y3Al5O12(YAG) 및 YAlO3(YAP) 중 어느 하나 이상으로 조성된 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제1항에서,상기 코팅막은 기공과 균열이 없는 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제1항에서,상기 코팅막의 표면조도(Rz) 값이 2.0㎛ 미만인 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제1항에서,상기 코팅막 표면에 대한 광학현미경 사진을 상대적 밝기에 따라 명부(明部)와 암부(暗部)로 구분할 때, 상기 암부 면적을 기준으로 명부 면적이 10% 이상이 되도록 구성된 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제5항에서,상기 본체 표면에 대한 광학현미경 사진을 상대적 밝기에 따라 명부와 암부로 구분할 때, 상기 암부 면적을 기준으로 명부 면적이 10% 이상이 되도록 구성된 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 제1항 내지 제6항 중 어느 한 항에서,상기 공정부품은 세라믹, 석영(quartz), 금속재료, 폴리머(polymer) 중 하나 이상으로 이루어진 것을 특징으로 하는 플라즈마 내식각성이 향상된 공정부품.
- 플라즈마에 노출되는 반도체 또는 디스플레이 제조장비 공정부품의 플라즈마 내식각성을 향상시키는 방법으로서,(a) 공정부품을 준비하는 단계;(b) 표면조도 측정 구간 내에서 피크(Peak)와 골(valley)의 면적이 같아지는 중심선(center line; mean line)과 평행한 임의의 기준선(arbitrary datum line)으로부터 상기 표면조도 측정 구간 내 가장 깊은 골 5개(V1. V2, V3, V4, V5)까지의 거리값 평균((V1+V2+V3+V4+V5)/5)과 가장 높은 피크 5개(P1, P2, P3, P4, P5)까지의 거리값 평균의 차에 대한 절대값([(P1+P2+P3+P4+P5)/5-(V1+V2+V3+V4+V5)/5])으로 표현되는 표면조도(Rz) 값이 5.0㎛ 미만이 되도록 상기 공정부품 본체 표면에서 골과 피크의 일부 또는 전체를 제거하는 단계;(c) 상기 공정부품 본체 표면에 세라믹 코팅막을 형성시키는 단계; 및(d) 상기 코팅막 표면에서 골과 피크의 일부 또는 전부를 제거하는 단계; 를 포함하는 것을 특징으로 하는 공정부품의 플라즈마 내식각성 강화 처리 방법.
- 제8항에서,상기 (d)단계는 상기 코팅막의 표면조도(Rz) 값이 2.0㎛ 미만이 되도록 하는 것을 특징으로 하는 공정부품의 플라즈마 내식각성 강화 처리 방법.
- 제8항에서,상기 (b)단계는 상기 공정부품 본체 표면의 광학현미경 사진을 상대적 밝기에 따라 명부(明部)와 암부(暗部)로 구분하여, 상기 암부 면적을 기준으로 명부 면적이 10% 이상이 되도록 하고,상기 (d)단계는 상기 코팅막 표면의 광학현미경 사진을 상대적 밝기에 따라 명부와 암부로 구분하여, 상기 암부 면적을 기준으로 명부 면적이 10% 이상이 되도록 하는 것을 특징으로 하는 공정부품의 플라즈마 내식각성 강화 처리 방법.
- 제8항 내지 제10항 중 어느 한 항에서,상기 공정부품 본체 표면과 코팅막 표면에서 골과 피크를 제거하는 방법으로 절삭(cutting), 그라인딩(grinding), 브러싱(brushing), 폴리싱(polishing), 래핑(lapping), 화학적 연마 중 어느 하나 이상의 방법을 적용하는 것을 특징으로 하는 공정부품의 플라즈마 내식각성 강화 처리 방법.
- 제8항에서,상기 (c)단계는 0~60℃ 및 진공 조건에서 Y2O3(yttria), YF3(yttrium fluoride), YSZ(Y2O3 stabilized ZrO2), Y4Al2O9(YAM), Y3Al5O12(YAG) 및 YAlO3(YAP) 중 어느 하나 또는 둘 이상이 혼합된 세라믹 파우더를 분사하여 코팅막을 형성시키는 것을 특징으로 하는 공정부품의 플라즈마 내식각성 강화 처리 방법.
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US15/524,045 US20170349992A1 (en) | 2014-11-07 | 2015-11-04 | Processing component having improved plasma etching resistance, and treatment method for reinforcing plasma etching resistance of processing component |
CN201580059892.5A CN107004558A (zh) | 2014-11-07 | 2015-11-04 | 等离子体耐蚀刻性得到提高的工艺部件及工艺部件的等离子体耐蚀刻性强化处理方法 |
JP2017544263A JP6798997B2 (ja) | 2014-11-07 | 2015-11-04 | プラズマ耐エッチング性が向上された工程部品及びそのプラズマ耐エッチング性の強化処理方法 |
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JP2020141123A (ja) | 2019-02-27 | 2020-09-03 | Toto株式会社 | 半導体製造装置用部材および半導体製造装置用部材を備えた半導体製造装置並びにディスプレイ製造装置 |
JP7236347B2 (ja) * | 2019-08-06 | 2023-03-09 | 日本特殊陶業株式会社 | 溶射膜被覆部材の製造方法 |
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US20130273313A1 (en) * | 2012-04-13 | 2013-10-17 | Applied Materials, Inc. | Ceramic coated ring and process for applying ceramic coating |
KR20130123821A (ko) * | 2012-05-04 | 2013-11-13 | (주)코미코 | 내 플라즈마 코팅막, 이의 제조 방법 및 내 플라즈마성 부품 |
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JP3864958B2 (ja) * | 2004-02-02 | 2007-01-10 | 東陶機器株式会社 | 耐プラズマ性を有する半導体製造装置用部材およびその作製方法 |
US7589025B2 (en) * | 2005-12-02 | 2009-09-15 | Rohm And Haas Electronic Materials Llc | Semiconductor processing |
JP2008160093A (ja) * | 2006-11-29 | 2008-07-10 | Toto Ltd | 静電チャック、静電チャックの製造方法および基板処理装置 |
JP2008189494A (ja) * | 2007-02-02 | 2008-08-21 | Tosoh Corp | 石英ガラス部品及びその製造方法 |
US8114473B2 (en) * | 2007-04-27 | 2012-02-14 | Toto Ltd. | Composite structure and production method thereof |
US20090162670A1 (en) * | 2007-12-20 | 2009-06-25 | General Electric Company | Method for applying ceramic coatings to smooth surfaces by air plasma spray techniques, and related articles |
JP5129902B2 (ja) * | 2008-09-15 | 2013-01-30 | 共栄電工株式会社 | 基板戴置装置用の基板戴置板の表面研磨方法及び装置 |
JP5726021B2 (ja) * | 2010-08-30 | 2015-05-27 | 京セラ株式会社 | 球状体およびこれを用いた転がり支持装置 |
JP5568756B2 (ja) * | 2011-06-29 | 2014-08-13 | トーカロ株式会社 | 耐食性や耐プラズマエロージョン性に優れるサーメット溶射皮膜被覆部材およびその製造方法 |
CN103074563B (zh) * | 2011-10-26 | 2017-09-12 | 中国科学院微电子研究所 | 一种y2o3耐侵蚀陶瓷涂层的改进方法 |
US9090046B2 (en) * | 2012-04-16 | 2015-07-28 | Applied Materials, Inc. | Ceramic coated article and process for applying ceramic coating |
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KR20040012364A (ko) * | 2002-08-02 | 2004-02-11 | 삼성전자주식회사 | 반도체 제조설비용 프로세스 챔버 |
KR20070006406A (ko) * | 2005-07-08 | 2007-01-11 | 매그나칩 반도체 유한회사 | 반도체 장치 제조 방법 |
US20130273313A1 (en) * | 2012-04-13 | 2013-10-17 | Applied Materials, Inc. | Ceramic coated ring and process for applying ceramic coating |
KR20130123821A (ko) * | 2012-05-04 | 2013-11-13 | (주)코미코 | 내 플라즈마 코팅막, 이의 제조 방법 및 내 플라즈마성 부품 |
KR101272736B1 (ko) * | 2013-02-07 | 2013-06-10 | 주식회사 템네스트 | 에어로졸 코팅을 이용한 정전척 재생 방법 |
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JP6798997B2 (ja) | 2020-12-09 |
KR101563130B1 (ko) | 2015-11-09 |
JP2017534001A (ja) | 2017-11-16 |
US20170349992A1 (en) | 2017-12-07 |
TW201630066A (zh) | 2016-08-16 |
KR20150068285A (ko) | 2015-06-19 |
TWI581330B (zh) | 2017-05-01 |
CN107004558A (zh) | 2017-08-01 |
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