WO2020026845A1 - 成膜装置 - Google Patents
成膜装置 Download PDFInfo
- Publication number
- WO2020026845A1 WO2020026845A1 PCT/JP2019/028419 JP2019028419W WO2020026845A1 WO 2020026845 A1 WO2020026845 A1 WO 2020026845A1 JP 2019028419 W JP2019028419 W JP 2019028419W WO 2020026845 A1 WO2020026845 A1 WO 2020026845A1
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- WO
- WIPO (PCT)
- Prior art keywords
- gas supply
- film forming
- supply unit
- unit
- forming apparatus
- Prior art date
Links
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- 239000007789 gas Substances 0.000 claims abstract description 166
- 239000000463 material Substances 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 38
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
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- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- WXRGABKACDFXMG-UHFFFAOYSA-N trimethylborane Chemical compound CB(C)C WXRGABKACDFXMG-UHFFFAOYSA-N 0.000 description 2
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- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003902 SiCl 4 Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 125000003545 alkoxy group Chemical group 0.000 description 1
- 125000000217 alkyl group Chemical group 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
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- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000004678 hydrides Chemical class 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
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Images
Classifications
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- 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
- C23C16/458—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 characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
- C23C16/4585—Devices at or outside the perimeter of the substrate support, e.g. clamping rings, shrouds
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- 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
- C23C16/448—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 characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
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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
- 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
- C23C16/448—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 characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4481—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 characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material
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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
- 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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
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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
- 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
- C23C16/455—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 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber
- C23C16/45563—Gas nozzles
- C23C16/45565—Shower nozzles
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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
- 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
- C23C16/458—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 characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
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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
- 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
- C23C16/458—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 characterised by the method used for supporting substrates in the reaction chamber
- C23C16/4582—Rigid and flat substrates, e.g. plates or discs
- C23C16/4583—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally
- C23C16/4586—Elements in the interior of the support, e.g. electrodes, heating or cooling devices
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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
- 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
- C23C16/50—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 using electric discharges
- C23C16/505—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 using electric discharges using radio frequency discharges
- C23C16/509—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 using electric discharges using radio frequency discharges using internal electrodes
- C23C16/5096—Flat-bed apparatus
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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
- 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
- C23C16/52—Controlling or regulating the coating process
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/67—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
- H01L21/67098—Apparatus for thermal treatment
- H01L21/67103—Apparatus for thermal treatment mainly by conduction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/67—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
- H01L21/683—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 for supporting or gripping
- H01L21/6831—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 for supporting or gripping using electrostatic chucks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- 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
- H01L21/67—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
- H01L21/683—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 for supporting or gripping
- H01L21/687—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68742—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by a lifting arrangement, e.g. lift pins
Definitions
- the present disclosure relates to a film forming apparatus.
- Patent Document 1 a liquid film-forming material used for film formation is vaporized by a vaporizer, the vaporized film-forming material gas is transported to a shower head together with a carrier gas, and is ejected toward a substrate to form a film on the substrate. It is disclosed.
- the present disclosure provides a technique of vaporizing a liquid film-forming material at a position closer to a processing target to form a film.
- the film forming apparatus includes a mounting table, a gas supply unit, and a vaporization unit.
- An object to be processed which is a film formation target, is placed on the mounting table.
- the gas supply unit is arranged to face the mounting table, is provided with a heater controlled at a predetermined temperature, and supplies a carrier gas.
- the vaporization unit is disposed between the mounting table and the gas supply unit, is heated by heat from the gas supply unit, and vaporizes a film-forming material supplied as a liquid.
- a film can be formed by vaporizing a liquid film-forming material at a position closer to a target object.
- FIG. 1 is a cross-sectional view illustrating an example of a schematic configuration of a film forming apparatus according to an embodiment.
- FIG. 2A is a cross-sectional view illustrating an example of a detailed configuration of the film forming apparatus according to the embodiment.
- FIG. 2B is an enlarged view of a part of FIG. 2A.
- FIG. 3 is a cross-sectional view illustrating an example of a detailed configuration of the vaporized substrate according to the embodiment.
- FIG. 4A is a cross-sectional view illustrating an example of a detailed configuration of a supply mechanism according to the embodiment.
- FIG. 4B is a cross-sectional view illustrating an example of a detailed configuration of the supply mechanism according to the embodiment.
- FIG. 1 is a cross-sectional view illustrating an example of a schematic configuration of a film forming apparatus according to an embodiment.
- FIG. 2A is a cross-sectional view illustrating an example of a detailed configuration of the film forming apparatus according to the embodiment.
- FIG. 5A is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- FIG. 5B is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- FIG. 5C is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- FIG. 5D is a diagram illustrating an example of the flow of a film forming process according to the embodiment.
- FIG. 5E is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- FIG. 5F is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- FIG. 5G is a diagram illustrating an example of a flow of a film forming process according to the embodiment.
- a pipe for transporting the film forming material gas and a heater such as a heater for keeping the film forming material gas in a vaporized state Means are required.
- the pipe requires a complicated configuration and control, such as providing a path for discharging the unvaporized gas returned to the liquid before introduction into the shower head. Therefore, a technique that can vaporize a liquid film-forming material at a position closer to the substrate to form a film is expected.
- FIG. 1 is a cross-sectional view illustrating an example of a schematic configuration of a film forming apparatus according to an embodiment.
- the film forming apparatus 100 includes a processing container 1, a mounting table 2, a gas supply unit 3, an exhaust unit 4, a gas supply source 5, and a control unit 6.
- the processing container 1 is made of metal such as aluminum and has a substantially cylindrical shape.
- a loading / unloading port 11 for loading / unloading the wafer W is formed on a side wall of the processing container 1.
- the loading / unloading port 11 is opened and closed by a gate valve 12.
- An annular exhaust duct 13 having a rectangular cross section is provided on the main body of the processing container 1.
- a slit 13 a is formed in the exhaust duct 13 along the inner peripheral surface.
- An exhaust port 13 b is formed on an outer wall of the exhaust duct 13.
- a flat ceiling member 14 is provided on the upper surface of the exhaust duct 13 so as to close the upper opening of the processing container 1.
- the ceiling member 14 is made of a metal such as aluminum similarly to the processing container 1.
- the space between the exhaust duct 13 and the ceiling member 14 is hermetically sealed by a seal 15.
- the mounting table 2 supports the wafer W horizontally in the processing chamber 1.
- the mounting table 2 is formed in a disk shape larger than the wafer W, and is supported by the support member 23.
- the mounting table 2 is formed of a ceramic material such as aluminum nitride (AlN) or a metal material such as aluminum or a nickel alloy, and has a heater 21 for heating the wafer W therein, an electrostatic chucking electrode 29A, and a high-frequency electrode. 29B are embedded.
- the heater 21 is heated by being supplied with power from a heater power supply (not shown). Then, the output of the heater 21 is controlled by a temperature signal of a fiber thermometer (not shown) provided near the upper surface of the mounting table 2, whereby the wafer W is controlled to a predetermined temperature.
- a high-frequency power supply 44 is connected to the high-frequency electrode 29B via a matching unit 43.
- the matching unit 43 is provided with a variable capacitor and an impedance control circuit, and can control at least one of the capacitance and the impedance.
- the matching unit 43 matches the load impedance with the internal impedance of the high-frequency power supply 44.
- the high-frequency power supply 44 applies a power of a predetermined frequency to the mounting table 2 via the high-frequency electrode 29B for drawing in ions of plasma.
- the high-frequency power supply 44 applies 13.56 MHz high-frequency power to the mounting table 2 via the high-frequency electrode 29B for attracting ions.
- the mounting table 2 also functions as a lower electrode.
- the electrostatic attraction electrode 29A is connected to an attraction power supply 40 via an ON / OFF switch 20 disposed outside the processing container 1, and a predetermined DC voltage is applied from the attraction power supply 40.
- the electrostatic attraction electrode 29A attracts the wafer W by Coulomb force generated by applying a DC voltage.
- the gas supply unit 3 is disposed above the mounting table 2 so as to face the mounting table 2.
- the gas supply unit 3 has a substantially disk-like shape similar to that of the wafer W.
- gases used for film formation are supplied to the gas supply unit 3 via a gas flow path described later.
- the gas supply unit 3 supplies the supplied various gases into the processing container 1.
- the vaporizing portion is a vaporizing substrate (hereinafter, also referred to as “vaporized substrate”) 10 having the same shape as the wafer W. Since the vaporized substrate 10 has the same shape as the wafer W, it can be transferred from the loading / unloading port 11 into the processing chamber 1 by a transfer mechanism such as a robot arm for transferring the wafer W.
- the vaporized substrate 10 is disposed between the mounting table 2 and the gas supply unit 3.
- the film forming apparatus 100 is provided with a support section for detachably supporting the vaporized substrate 10 on the gas supply section 3.
- the gas supply unit 3 is provided with support pins 50 around the vaporized substrate 10 as support units.
- the support pins 50 are arranged around a rear half of the vaporized substrate 10 opposite to the carry-in / out port 11 side so that the vaporized substrate 10 conveyed from the carry-in / out port 11 can enter the lower surface 3a side of the gas supply unit 3.
- a plurality is provided.
- the support pins 50 are located at directions of 90 degrees, 180 degrees, and 270 degrees with respect to the center of the gas supply unit 3. Are provided in each case.
- the support pin 50 is formed such that a lower end portion is bent in an L-shape toward the center side of the gas supply unit 3, and the end portion wraps around the lower surface of the vaporized substrate 10 that has entered from the loading / unloading port 11 side.
- the substrate 10 is supported.
- the support pin 50 can be moved up and down by an elevating mechanism 57 which will be described later, and moves up while supporting the vaporized substrate 10, thereby fixing the vaporized substrate 10 in contact with the gas supply unit 3.
- a circular opening is formed near the center of the ceiling member 14, and an opening member 51 is installed in accordance with the opening.
- the opening member 51 is provided with a flange portion 51a whose upper side is wider than the opening, and the space between the flange portion 51a and the ceiling member 14 is hermetically sealed by a sealing member such as a seal.
- a columnar shaft 52 is arranged in the opening member 51.
- the lower end of the shaft 52 is fixed to the center of the gas supply unit 3.
- An elastic bellows 53 is provided above the opening member 51.
- a cylindrical housing 54 is provided on the upper part of the bellows 53.
- the shaft 52 passes through the bellows 53 and is provided up to an upper portion inside the housing 54.
- the shaft 52 is supported by the housing 54 so as to be rotatable in the circumferential direction.
- the film forming apparatus 100 is provided with an elevating mechanism 55 for elevating and lowering the gas supply unit 3.
- an elevating mechanism 55 is provided on the upper surface of the ceiling member 14.
- the elevating mechanism 55 is provided with an arm 55a.
- the arm 55a is fixed to the housing 54 and supports the housing 54.
- the elevating mechanism 55 incorporates an actuator such as a motor, and is capable of moving the arm 55a in the vertical direction by the driving force of the actuator.
- the housing 54 moves up and down.
- the shaft 52 also moves up and down.
- the gas supply unit 3 moves up and down in the processing container 1 by moving the shaft 52 in the vertical direction.
- the film forming apparatus 100 is provided with a rotation mechanism 56 for rotating the gas supply unit 3 with a rotation axis perpendicular to the gas supply unit 3.
- a rotation mechanism 56 is provided in the housing 54.
- the rotation mechanism 56 has a built-in motor and rotates the shaft 52 in the housing 54 in the circumferential direction by the driving force of the motor. As the shaft 52 rotates in the circumferential direction, the gas supply unit 3 rotates around the shaft 52 as a rotation axis.
- the film forming apparatus 100 is provided with an elevating mechanism 57 for elevating and lowering the support pins 50.
- FIG. 2A is a cross-sectional view showing an example of a detailed configuration of the film forming apparatus according to the embodiment.
- FIG. 2A is a cross-sectional view illustrating an example of a detailed configuration near the upper portion of the film forming apparatus 100 by changing the direction in which the film forming apparatus 100 is viewed from FIG.
- FIG. 2A shows a detailed configuration in the vicinity of the gas supply unit 3, the housing 54, the rotating mechanism 56, and the elevating mechanism 57.
- FIG. 2B is an enlarged view of a part of FIG. 2A.
- a shaft 52 is fixed at the center of the gas supply unit 3.
- the shaft 52 passes through the bellows 53 and reaches the housing 54.
- the housing 54 is provided with bearings 58a and 58b on the inner peripheral surface thereof, which are vertically separated from each other, and rotatably supports the shaft 52 by the bearings 58a and 58b.
- the lower part of the bearing 58a and the upper part of the bearing 58b are hermetically sealed with a seal 59, respectively.
- An upper shaft member 60 is provided above the shaft 52.
- the upper shaft member 60 has a columnar columnar portion 60 a having a smaller diameter than the shaft 52, and a lower flange portion 60 b having the same diameter as the shaft 52.
- the upper shaft member 60 has a flange portion 60b fixed to the shaft 52, and the shaft 52 and the upper shaft member 60 rotate coaxially.
- the periphery of the upper shaft member 60 is covered by a cylindrical cover 61.
- a disc-shaped cover 62 is provided on the upper surface of the cover 61.
- the cover 62 is provided with a bearing 62 a that rotatably supports the upper shaft member 60, and the upper end of the upper shaft member 60 is exposed at the center of the cover 62.
- a pulley 63 is fixed to the upper shaft member 60.
- a belt 64 is attached to the pulley 63.
- the cover 61 has an opening at a portion where the belt 64 passes.
- the belt 64 is driven to rotate by a driving force of a motor provided in the rotation mechanism 56. By the driving of the belt 64 to rotate, the pulley 63 rotates, and the upper shaft member 60 and the shaft 52 also rotate.
- the upper shaft member 60 is provided with a lifting component 70.
- the lifting component 70 has a holder 70b provided around a disk member 70a, and the disk member 70a is rotatably supported by the holder 70b via a bearing 70c.
- the disc member 70a has a through-hole having a diameter larger than the diameter of the upper shaft member 60 formed at the center, and the upper shaft member 60 is disposed in the through-hole.
- the disc member 70a is rotatable in the circumferential direction as a rotor via a bearing 70c.
- the holder 70b supports the disk member 70a as a stator without rotating through the bearing 70c.
- two cylinders 71 are provided as the elevating mechanism 57 at symmetrical positions with the upper shaft member 60 interposed therebetween.
- the cylinder 71 incorporates an actuator such as a motor, and the rod 71a can be expanded and contracted by the driving force of the actuator.
- the holder portion 70b has an extended portion partially extending in the direction of the cylinder 71, and the extended portion is connected to the rod 71a of the cylinder 71.
- the cover 61 has an opening at a portion where the extension of the holder 70b passes.
- the cylinder 71 expands and contracts the rod 71a by the driving force of the actuator, and moves the holder 70b up and down. As the holder 70b moves up and down, the disk member 70a moves up and down in the direction of the rotation axis of the upper shaft member 60.
- a through hole is formed in the shaft 52 and the upper shaft member 60 at a position off the rotation axis in the direction of the rotation axis, and a pole 72 is disposed in the through hole.
- the pole 72 has an upper end connected to the disk member 70 a and a lower end connected to the support pin 50.
- the pole 72 rotates together with the shaft 52 as the shaft 52 rotates.
- the disk member 70 a connected to the upper end of the pawl 72 receives the rotational force transmitted through the pawl 72 and rotates together with the pawl 72 and the shaft 52. That is, the disk member 70a, the pawl 72, and the shaft 52 rotate together as a unit.
- the pole 72 moves in the direction of the rotation axis in the through hole as the upper shaft member 60 moves up and down, and moves the support pin 50 up and down.
- the support pin 50 moves up and down through the upper shaft member 60 and the pole 72 by extending and contracting the rod 71a of the cylinder 71.
- the shaft 52 is formed to have a small diameter at a lower portion so that the connection portion does not interfere with the shaft 52 even when the connection portion between the pole 72 and the support pin 50 moves up and down.
- the connection between the pole 72 and the support pin 50 is exposed outside the shaft 52.
- a fiber thermometer 75 is provided above the upper shaft member 60.
- a through hole is formed in a central portion serving as a rotation axis in the direction of the rotation axis.
- An optical fiber 76 is provided in the through hole.
- the optical fiber 76 has an upper end connected to the fiber thermometer 75 and a lower end reaching the gas supply unit 3.
- the fiber thermometer 75 measures the temperature of the gas supply unit 3 based on an optical signal input from the optical fiber 76.
- the housing 54 is provided with a gas supply port 81 on the outer peripheral surface.
- the supply port 81 is connected to the gas supply source 5 via the gas pipe 83, and the gas is supplied from the gas supply source 5.
- the supply port 81 is supplied with a purge gas from the gas supply source 5.
- the housing 54 has a recess 82 formed in the inner peripheral surface at a position corresponding to the supply port 81 in the circumferential direction.
- the supply port 81 penetrates to a concave portion 82 formed on the inner peripheral surface of the housing 54.
- a gas flow path 85 is formed in the shaft 52 in the rotation axis direction.
- the gas flow path 85 has one lower end reaching the gas supply unit 3, the other upper end turning radially at the height of the concave portion 82, and reaching the peripheral surface facing the concave portion 82.
- the gas supply unit 3 has a gas passage 3 b formed therein and communicates with the gas passage 85.
- the gas supply unit 3 is a shower head in which a large number of ejection holes 3c communicating with the gas flow path 3b are formed on a lower surface 3a.
- the gas supplied to the supply port 81 flows into the concave portion 82.
- the concave portion 82 is formed on the inner peripheral surface of the housing 54 one round in the circumferential direction. Therefore, even when the shaft 52 is rotating, the other end of the gas flow path 85 is in communication with the recess 82, and the gas in the recess 82 flows into the gas flow path 85.
- the gas that has flowed into the gas flow path 85 flows through the gas flow path 3 b in the gas supply unit 3, and is jetted from each jet hole 3 c of the gas supply unit 3.
- the housing 54 is provided with a power supply terminal 86.
- the power supply terminal 86 is connected to the heater power supply 80 via a power supply line 84, and power is supplied from the heater power supply 80.
- the housing 54 is provided with one round of a conductive portion 87 in the circumferential direction at a position corresponding to the power supply terminal 86 on the inner circumferential surface.
- the power supply terminal 86 is connected to the conductive portion 87 via a power supply wiring (not shown).
- the shaft 52 is provided with a power supply wiring 88 in the direction of the rotation axis.
- the lower end of the power supply wiring 88 reaches the gas supply unit 3, the other end of the upper side turns radially at the height of the conductive unit 87, reaches the peripheral surface facing the conductive unit 87, and
- the contact portion 87 is in electrical conduction with the conductive portion 87.
- the gas supply unit 3 has a heater 3d provided inside, and a power supply wiring 88 is connected to the heater 3d.
- the power supplied to the power supply terminal 86 flows to the conductive portion 87.
- the conductive portion 87 is formed on the inner peripheral surface of the housing 54 one round in the circumferential direction. Therefore, even when the shaft 52 is rotating, the other end of the power supply wiring 88 is in a conductive state with the conductive portion 87.
- the power supplied to the power supply terminal 86 is supplied to the heater 3 d in the gas supply unit 3 via the conductive part 87 and the power supply wiring 88.
- the heater 3 d generates heat according to the supplied electric power and heats the gas supply unit 3.
- the vaporized substrate 10 is disposed on the lower surface 3a of the gas supply unit 3 while being supported by the support pins 50.
- FIG. 3 is a cross-sectional view showing an example of a detailed configuration of the vaporized substrate according to the embodiment.
- the vaporized substrate 10 has a disk-like shape like the wafer W, and is made of, for example, a metal having high thermal conductivity such as aluminum. Further, the vaporizing substrate 10 is provided with a storage unit 10a.
- the storage unit 10a is made of, for example, a sintered metal, a nylon filter, a porous member, a porous metal, or the like, and is capable of storing a liquid film-forming material.
- the storage unit 10a is arranged so that the material distribution tends to be uniform during film formation.
- the vaporized substrate 10 shown in FIG. 3 divides a disc-shaped surface radially from a center into three regions, a center portion, a middle portion, and an outer peripheral portion, and has a size corresponding to the area ratio of each region. Each area is provided with a storage section 10a.
- the vaporized substrate 10 is provided with a through hole 10c at a position corresponding to each ejection hole 3c of the gas supply unit 3.
- the gas ejected from each ejection hole 3c of the gas supply unit 3 is supplied into the processing container 1 through the through hole 10c.
- the film forming apparatus 100 is provided with a supply mechanism 90 for supplying a liquid film forming material to the storage section 10 a of the vaporized substrate 10.
- the supply mechanism 90 is provided for each storage section 10a of the vaporized substrate 10, but FIG. 1 shows only one supply mechanism 90.
- the supply mechanism 90 is disposed at a position above the storage unit 10 a of the vaporized substrate 10.
- a through hole 3e is formed in the gas supply unit 3 at a position corresponding to the storage unit 10a.
- a through hole 14e is formed at a position above the through hole 3e.
- the supply mechanism 90 is provided with a bellows 91 that expands and contracts at a lower portion, and the bellows 91 is disposed above the through hole 14e.
- the supply mechanism 90 can be moved up and down by a lifting mechanism (not shown).
- the supply mechanism 90 has an upstream side branched, and a liquid film-forming material is supplied from one of the branches, and a purge gas is supplied from the other side.
- the supply mechanism 90 is lowered by an elevating mechanism (not shown), reaches the storage section 10a at the tip, and forms the liquid together with the purge gas from the tip.
- the membrane material is supplied to the storage unit 10a.
- FIG. 4A and 4B are cross-sectional views illustrating an example of a detailed configuration of the supply mechanism according to the embodiment.
- FIG. 4A shows components constituting the supply mechanism 90.
- FIG. 4B shows a state where the components constituting the supply mechanism 90 are combined.
- the supply mechanism 90 has a pipe 92, a refrigerant pipe 93, and a gas introduction unit 94.
- the pipe 92 is, for example, a thin pipe having a diameter of about 0.8 mm, and has upper and lower ends open. At the upper end of the pipe 92, a supply port 92a is provided. The supply port 92a is supplied with a liquid film-forming material from a film-forming material supply unit 96 via a pipe 95. The pipe 92 transports the liquid film-forming material supplied to the supply port 92a and discharges it from the lower end.
- Liquid film forming materials include inorganic compounds and organometallic compounds. Examples of the inorganic compound include hydrides such as SiH 4 and AsH 3 and halides such as SiCl 4 and TiCl 4 .
- organometallic compounds include alkoxyl compounds such as TEOS (Si (OC 2 H 5 ) 4 ) and TMB (trimethylboron), alkyl compounds such as TMP (trimethyl phosphate) and TMAl (trimethylaluminum), and Sr (DPM ) 2 and Bi (DPM) 3 .
- the liquid film-forming material may be a material that forms a self-assembled monolayer (hereinafter sometimes referred to as “SAM”). SAM is a monolayer formed by self-assembly of molecules.
- Examples of a liquid film forming material for forming a SAM include a liquid material including a dielectric substance such as an organic silane molecule, an organic phosphoric acid molecule, or an organic carboxylic acid molecule.
- the refrigerant pipe 93 has a double annular structure.
- the refrigerant pipe 93 has a pipe 92 disposed in an inner ring.
- the inner diameter of the inner ring is slightly larger than that of the pipe 92, and a gap is formed between the inner ring and the pipe 92.
- a bellows 91 is arranged around the refrigerant pipe 93.
- the refrigerant pipe 93 is formed so that a refrigerant such as cooling water flows between the inner ring and the outer ring.
- the refrigerant pipe 93 is closed at the lower part between the inner ring and the outer ring, and is formed so that the refrigerant does not flow out from the lower part.
- the refrigerant pipe 93 is provided with a refrigerant supply port 93a and a discharge port 93b at the upper part.
- the refrigerant supplied to the supply port 93a flows between the inner ring and the outer ring of the refrigerant pipe 93, and is discharged from the discharge port 93b.
- the film forming apparatus 100 can control the temperature of the liquid flowing through the pipe 92 by changing the temperature of the refrigerant supplied to the supply port 93a. Thereby, the film forming apparatus 100 can control the temperature of the liquid film forming material flowing through the pipe 92 to a temperature suitable for film forming by controlling the temperature of the refrigerant supplied to the supply port 93a.
- a gas inlet 94 is provided above the refrigerant pipe 93.
- the gas introducing section 94 has a pipe section 94a having a larger inner diameter than the pipe 92, and the pipe 92 is disposed inside the pipe section 94a. Further, the pipe portion 94a is formed with a branched pipe 94b.
- the gas introduction part 94 is air-tightly fixed to the upper part of the refrigerant pipe 93.
- the branch pipe 94b is connected to the gas supply source 5, and the gas is supplied from the gas supply source 5.
- a purge gas is supplied from the gas supply source 5 to the branch pipe 94b.
- the purge gas for example, N 2 gas and the like can be mentioned.
- the purge gas supplied to the branch pipe 94b flows between the ring inside the refrigerant pipe 93 and the refrigerant pipe 93, and is discharged from around the lower end of the pipe 92.
- the liquid film-forming material arriving at the lower end of the pipe 95 is smoothly supplied to the storage unit 10a along with the flow of the purge gas, and is prevented from being supplied as a large drop at the lower end of the pipe 95. .
- the mounting table 2 is provided with a cover member 22 made of ceramics such as alumina so as to cover an outer peripheral region and a side surface of the upper surface.
- a support member 23 and an elevating mechanism 24 are provided on the bottom surface of the mounting table 2.
- the support member 23 supports the mounting table 2 from the center of the bottom surface of the mounting table 2.
- the support member 23 extends below the processing container 1 through a hole formed in the bottom wall of the processing container 1, and has a lower end connected to the elevating mechanism 24.
- the mounting table 2 is moved up and down by the elevating mechanism 24 via the support member 23.
- the processing positions of the mounting table 2 and the gas supply unit 3 at the time of film formation are indicated by solid lines, and two transfer positions at which the wafer W and the vaporized substrate 10 can be transferred to and from the transfer mechanism. This is indicated by a chain line.
- a flange 25 is attached to the support member 23 below the processing container 1, and an atmosphere in the processing container 1 is separated from the outside air between the bottom surface of the processing container 1 and the flange 25, and the mounting table 2 is provided.
- a bellows 26 is provided which expands and contracts with the vertical movement.
- wafer support pins 27 are provided near the bottom surface of the processing container 1 so as to protrude upward from the elevating plate 27a.
- the wafer support pins 27 are moved up and down by an elevating mechanism 28 provided below the processing container 1 via an elevating plate 27a.
- the wafer support pins 27 are inserted into through holes 2a provided in the mounting table 2 at the transfer position, and can protrude and retract from the upper surface of the mounting table 2.
- the wafer W is transferred between the transfer mechanism and the mounting table 2 by raising and lowering the wafer support pins 27.
- a processing space 38 is formed between the mounting table 2 and the gas supply unit 3 with the mounting table 2 existing at the processing position.
- the exhaust unit 4 exhausts the inside of the processing container 1.
- the exhaust unit 4 includes an exhaust pipe 41 connected to the exhaust port 13b, and an exhaust mechanism 42 having a vacuum pump, a pressure control valve, and the like connected to the exhaust pipe 41.
- the gas in the processing chamber 1 reaches the exhaust duct 13 through the slit 13a, and is exhausted from the exhaust duct 13 through the exhaust pipe 41 by the exhaust mechanism 42.
- the control unit 6 is, for example, a computer, and includes a CPU (Central Processing Unit), a RAM (Random Access Memory), a ROM (Read Only Memory), an auxiliary storage device, and the like.
- the CPU operates based on a program stored in the ROM or the auxiliary storage device or a process condition of the plasma processing, and controls the operation of the entire apparatus.
- the control unit 6 controls the operation of supplying various gases from the gas supply source 5, the operation of raising and lowering the elevating mechanism 24, the operation of exhausting the inside of the processing chamber 1 by the exhaust mechanism 42, and the power supplied from the high-frequency power supply 44, respectively. .
- control unit 6 controls the raising / lowering operation of the lifting / lowering mechanism 55, the rotating operation of the rotating mechanism 56, the lifting / lowering operation of the lifting / lowering mechanism 57, and the power supplied from the heater power supply 80, respectively. Further, the control unit 6 controls a lifting operation of a lifting mechanism (not shown) that raises and lowers the supply mechanism 90, a supply operation of a liquid film forming material from the film forming material supply unit 96, and a supply of a refrigerant to the refrigerant pipe 93. I do. Note that a computer-readable program necessary for control may be stored in a storage medium.
- the storage medium is, for example, a flexible disk, a CD (Compact Disc), a CD-ROM, a hard disk, a flash memory, a DVD, or the like.
- the control unit 6 may be provided inside the film forming apparatus 100 or may be provided outside. When the control unit 6 is provided outside, the control unit 6 can control the film forming apparatus 100 by a wired or wireless communication means.
- 5A to 5G are diagrams illustrating an example of the flow of a film forming process according to the embodiment.
- the film forming apparatus 100 reduces the pressure in the processing chamber 1 to a vacuum atmosphere by the exhaust mechanism 42.
- the vaporized substrate 10 is attached to the gas supply unit 3.
- the film forming apparatus 100 lowers the mounting table 2 to the lower portion by the elevating mechanism 24. Further, the film forming apparatus 100 lowers the gas supply unit 3 to the transfer position by the elevating mechanism 55. Further, the film forming apparatus 100 contracts the rod 71 a of the cylinder 71 and lowers the support pin 50 from the gas supply unit 3. Then, the film forming apparatus 100 opens the gate valve 12.
- the vaporized substrate 10 is carried in between the gas supply unit 3 and the support pins 50 by the carrying mechanism via the carry-in / out port 11. As shown in FIG. 5B, the film forming apparatus 100 raises the gas supply unit 3 supported by the vaporized substrate 10 to the processing position by the elevating mechanism 55.
- the film forming apparatus 100 When replacing the vaporized substrate 10, the film forming apparatus 100 removes the vaporized substrate 10 from the gas supply unit 3 and carries it out by a transport mechanism in a flow reverse to that when the vaporized substrate 10 is mounted. Then, the film forming apparatus 100 carries in a new vaporized substrate 10 by the transfer mechanism and attaches it to the gas supply unit 3. Thus, the film forming apparatus 100 can easily exchange the vaporized substrate 10. The removed vaporized substrate 10 can be reused by washing.
- the film forming apparatus 100 places the wafer W to be formed on the mounting table 2. For example, as shown in FIG. 5C, the film forming apparatus 100 lowers the mounting table 2 to the lower part by the elevating mechanism 24. The wafer W to be film-formed is carried into the upper part of the mounting table 2 into the film-forming apparatus 100 via the carrying-in / out port 11 by the carrying mechanism. In the film forming apparatus 100, the lifting plate 27 a is raised by the lifting mechanism 28, the wafer support pins 27 are projected from the through holes 2 a of the mounting table 2, and the wafer W is received by the wafer support pins 27.
- the film forming apparatus 100 After the transport mechanism exits from the loading / unloading port 11, the film forming apparatus 100 lowers the elevating plate 27a by the elevating mechanism 28 and stores the wafer support pins 27 in the through holes 2a of the mounting table 2, as shown in FIG. 5D. Then, the wafer W is mounted on the mounting table 2. Then, the film forming apparatus 100 raises the mounting table 2 to the processing position by the elevating mechanism 24 as shown in FIG. 5E.
- the film forming apparatus 100 lowers the supply mechanism 90 by an elevating mechanism (not shown), ejects a liquid film formation material together with a purge gas from the tip of the supply mechanism 90, and removes the liquid film formation material. It is supplied to the storage section 10a of the vaporized substrate 10.
- the film-forming apparatus 100 raises the supply mechanism 90 by an unillustrated elevating mechanism as shown in FIG. 5G.
- the film forming apparatus 100 supplies electric power from the heater power supply 80 to the heater 3d, causes the heater 3d to generate heat, and heats the gas supply unit 3.
- the film forming apparatus 100 measures the temperature of the gas supply unit 3 with the fiber thermometer 75, controls the power supplied from the heater power supply 80, and sets the gas supply unit 3 to a predetermined temperature suitable for vaporizing the film forming material. Control to temperature.
- the temperature of the gas supply unit 3 is controlled to any temperature between 100 ° C. and 400 ° C.
- the film forming apparatus 100 supplies the carrier gas from the gas supply source 5 to the supply port 81 of the housing 54, and discharges the carrier gas from the gas supply unit 3.
- the carrier gas for example, a gas having high heat conductivity such as hydrogen, helium, and nitrogen is used.
- the film forming apparatus 100 extends the rod 71 a of the cylinder 71, raises the support pin 50, and fixes the vaporized substrate 10 in contact with the gas supply unit 3.
- the rotating mechanism 56 rotates the shaft 52 in the circumferential direction, and rotates the gas supply unit 3 around the shaft 52 as a rotation axis.
- the film forming material stored in the storage unit 10 a is vaporized by the heat of the gas supply unit 3. Then, in the film forming apparatus 100, the vaporized film forming material gas flows to the wafer W by the carrier gas flowing from the gas supply unit 3, and the film is formed on the wafer W.
- the film forming apparatus 100 rotates the gas supply unit 3 during film formation. Thus, the film-forming material gas is evenly supplied to the wafer W, so that the film can be uniformly formed on the wafer W.
- the film forming apparatus 100 includes the mounting table 2, the gas supply unit 3, and the vaporized substrate 10. On the mounting table 2, a wafer W to be formed into a film is placed.
- the gas supply unit 3 is disposed so as to face the mounting table 2, is provided with a heater 3 d controlled to a predetermined temperature, and supplies a carrier gas.
- the vaporization substrate 10 is disposed between the mounting table 2 and the gas supply unit 3 and is heated by heat from the gas supply unit 3 to vaporize a film-forming material supplied as a liquid.
- the film forming apparatus 100 can vaporize the liquid film forming material at a position closer to the wafer W to form a film.
- the film forming apparatus 100 can form a film by supplying a vaporized film forming material gas from above the wafer W.
- the vaporized substrate 10 is arranged to face the surface of the gas supply unit 3 on the mounting table 2 side.
- the film forming apparatus 100 includes a lifting mechanism 57 that moves the vaporized substrate 10 up and down with respect to the gas supply unit 3.
- the film forming apparatus 100 can adjust the heat input from the gas supply unit 3 to the vaporized substrate 10 by moving the vaporized substrate 10 up and down with respect to the gas supply unit 3, thereby controlling the vaporization of the film forming material. .
- the gas supply unit 3 is provided with a plurality of ejection holes 3c for ejecting a carrier gas.
- the vaporized substrate 10 has a through hole 10c at a position corresponding to the ejection hole 3c. Accordingly, the film forming apparatus 100 can flow a large amount of the vaporized film forming material gas onto the wafer W by the flow of the carrier gas, and can increase the film forming efficiency on the wafer W.
- the film forming apparatus 100 includes an elevating mechanism 55 for elevating and lowering the gas supply unit 3 and support pins 50 for detachably supporting the vaporized substrate 10 on the gas supply unit 3.
- the vaporized substrate 10 has a shape similar to that of the wafer W, and is transferred using a transfer mechanism that transfers the wafer W to the mounting table 2.
- the elevating mechanism 55 lowers the gas supply unit 3 to a transfer position where the wafer W is transferred to the mounting table 2.
- the support pins 50 support the vaporized substrate 10 transported by the transport mechanism.
- the film forming apparatus 100 can attach and detach the vaporized substrate 10 using the transfer mechanism that transfers the wafer W to the mounting table 2.
- the film forming apparatus 100 further includes a rotation mechanism 56 that rotates the gas supply unit 3 with a rotation axis perpendicular to the mounting table 2 during the film forming process.
- the film forming apparatus 100 can perform film formation by uniformly supplying the vaporized film forming material gas to the wafer W.
- the vaporizing substrate 10 is provided with a storage unit 10a for storing a film-forming material supplied as a liquid.
- the film forming apparatus 100 further includes a supply mechanism 90 that supplies a liquid film forming material to the storage unit 10a.
- the film forming apparatus 100 can perform film formation by supplying the film forming material supplied as a liquid to the vaporized substrate 10.
- the supply mechanism 90 is provided with a refrigerant pipe 93 through which a refrigerant flows around a pipe 92 through which a liquid film-forming material flows, and discharges the film-forming material together with a purge gas at a tip end of the pipe 92 that supplies the film-forming material to the storage unit 10a. Is done. Accordingly, the film forming apparatus 100 can smoothly supply the liquid film forming material to the storage unit 10a.
- the gas supply unit 3 is rotated at the time of film formation is described as an example, but the present invention is not limited to this.
- the mounting table 2 may be rotated.
- the vaporized substrate 10 is brought into contact with the gas supply unit 3 to vaporize the liquid film-forming material has been described as an example, but the present invention is not limited to this.
- the liquid film-forming material may be vaporized while the vaporized substrate 10 is separated from the gas supply unit 3.
- the gas flow path 3b of the gas supply unit 3 is divided into a plurality of parts, and the gas can be individually supplied to the wafer W for each divided area obtained by dividing the lower surface 3a of the gas supply unit 3. Then, a gas supply path such as a gas flow path 85, a concave portion 82, a supply port 81, and the like may be individually formed in the shaft 52 and the housing 54 for each gas flow path 3b.
- the heater 3d of the gas supply unit 3 is divided into a plurality of parts, and the temperature can be individually adjusted for each divided region of the lower surface 3a of the gas supply unit 3.
- a power supply path such as a power supply wiring 88, a conductive portion 87, and a power supply terminal 86 may be individually formed on the shaft 52 and the housing 54 for each heater 3d.
- the supply port 81 and the power supply wiring 88 are provided in the housing 54 to supply and supply gas from the side surface is described as an example, but the present invention is not limited to this.
- gas may be supplied or power may be supplied through a through hole provided in the rotation shaft of the shaft 52.
- the vaporized substrate 10 has the same shape as the wafer W has been described as an example, but the present invention is not limited to this.
- the vaporized substrate 10 may be formed in a shape larger than the wafer W, and a loading / unloading port for the vaporized substrate 10 may be provided in the film forming apparatus 100.
- the entire vaporized substrate 10 may be formed of a member that can pass a gas while storing a liquid such as a sintered metal, a nylon filter, a porous member, or a porous metal.
- the object to be processed is a semiconductor wafer
- the present invention is not limited to this.
- the object to be processed may be another substrate such as a glass substrate.
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Abstract
Description
次に、実施形態に係る成膜装置の構成について説明する。成膜装置は、成膜対象とされた被処理体に成膜を行う装置である。以下では、成膜装置が、被処理体として半導体ウエハ(以下「ウエハ」とも言う。)に対して成膜を行う場合を例に説明する。図1は、実施形態に係る成膜装置の概略構成の一例を示す断面図である。成膜装置100は、処理容器1と、載置台2と、ガス供給部3と、排気部4と、ガス供給源5と、制御部6とを有している。
2 載置台
3 ガス供給部
3b ガス流路
3c 噴出穴
3d ヒータ
3e 貫通穴
5 ガス供給源
6 制御部
10 気化基板
10a 貯留部
10c 貫通穴
24 昇降機構
50 支持ピン
52 シャフト
53 ベローズ
54 ハウジング
55 昇降機構
55a アーム
56 回転機構
57 昇降機構
60 上部軸部材
63 プーリー
64 ベルト
70 昇降部品
70a 円盤部材
70b ホルダ部
70c ベアリング
71 シリンダ
71a ロッド
72 ポール
80 ヒータ電源
81 供給口
82 凹部
85 ガス流路
86 給電端子
87 導電部
88 給電配線
90 供給機構
91 ベローズ
92 配管
92a 供給口
93 冷媒管
93a 供給口
93b 排出口
94 ガス導入部
94b 分岐管
96 成膜材料供給部
100 成膜装置
W ウエハ
Claims (7)
- 成膜対象とされた被処理体が配置される載置台と、
前記載置台と対向するように配置され、所定の温度に制御されるヒータが設けられ、キャリアガスを供給するガス供給部と、
前記載置台と前記ガス供給部との間に配置され、前記ガス供給部からの熱により加熱され、液体で供給される成膜材料を気化する気化部と、
を有することを特徴とする成膜装置。 - 前記気化部は、前記ガス供給部の前記載置台側の面に対向して配置され、
前記気化部を前記ガス供給部に対して昇降する第1昇降機構をさらに有する
ことを特徴とする請求項1に記載の成膜装置。 - 前記ガス供給部は、前記キャリアガスを噴出する噴出穴が複数設けられ、
前記気化部は、前記噴出穴に対応する位置に貫通穴が設けられた
ことを特徴とする請求項1または2に記載の成膜装置。 - 前記ガス供給部を昇降する第2昇降機構と、
前記気化部を前記ガス供給部に着脱可能に支持する支持部と、をさらに有し、
前記気化部は、前記被処理体と同様の形状とされ、前記被処理体を前記載置台へ搬送する搬送機構を使用して搬送され、
前記第2昇降機構により前記被処理体を前記載置台へ搬送する搬送位置まで前記ガス供給部を下降し、前記搬送機構により搬送される前記気化部を前記支持部で支持する
ことを特徴とする請求項1~3の何れか1つに記載の成膜装置。 - 成膜処理時に、前記載置台に垂直な回転軸で前記ガス供給部を回転させる回転機構をさらに有することを特徴とする請求項1~4の何れか1つに記載の成膜装置。
- 前記気化部は、液体で供給される成膜材料を貯留する貯留部が設けられ、
前記貯留部へ液体の成膜材料を供給する供給機構をさらに有する
ことを特徴とする請求項1~5の何れか1つに記載の成膜装置。 - 前記供給機構は、液体の成膜材料が流れる第1配管の周囲に冷媒が流れる第2配管が設けられ、前記貯留部に成膜材料を供給する前記第1配管の先端部分でパージガスと共に前記成膜材料が吐出される
ことを特徴とする請求項6に記載の成膜装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US17/264,208 US11414754B2 (en) | 2018-08-02 | 2019-07-19 | Film forming apparatus |
KR1020217004552A KR20210035217A (ko) | 2018-08-02 | 2019-07-19 | 성막 장치 |
CN201980049511.3A CN112513322B (zh) | 2018-08-02 | 2019-07-19 | 成膜装置 |
JP2020533424A JP7046188B2 (ja) | 2018-08-02 | 2019-07-19 | 成膜装置 |
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JP2018-146001 | 2018-08-02 | ||
JP2018146001 | 2018-08-02 |
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WO2020026845A1 true WO2020026845A1 (ja) | 2020-02-06 |
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PCT/JP2019/028419 WO2020026845A1 (ja) | 2018-08-02 | 2019-07-19 | 成膜装置 |
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US (1) | US11414754B2 (ja) |
JP (1) | JP7046188B2 (ja) |
KR (1) | KR20210035217A (ja) |
CN (1) | CN112513322B (ja) |
WO (1) | WO2020026845A1 (ja) |
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JP2022032260A (ja) * | 2020-08-11 | 2022-02-25 | Ckd株式会社 | 気化器 |
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JPH1046343A (ja) * | 1996-04-05 | 1998-02-17 | Ebara Corp | 液体原料気化装置及びガス噴射装置 |
JP2002535483A (ja) * | 1999-01-13 | 2002-10-22 | 東京エレクトロン株式会社 | 先駆物質液を用いて金属層を化学蒸着する処理装置および方法 |
JP2017504725A (ja) * | 2014-01-21 | 2017-02-09 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 低圧ツール交換を可能にする原子層堆積処理チャンバ |
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US6596085B1 (en) * | 2000-02-01 | 2003-07-22 | Applied Materials, Inc. | Methods and apparatus for improved vaporization of deposition material in a substrate processing system |
US7163197B2 (en) * | 2000-09-26 | 2007-01-16 | Shimadzu Corporation | Liquid substance supply device for vaporizing system, vaporizer, and vaporization performance appraisal method |
KR20180128515A (ko) | 2016-04-25 | 2018-12-03 | 어플라이드 머티어리얼스, 인코포레이티드 | 자기-조립 단분자층 프로세스들을 위한 화학물질 전달 챔버 |
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2019
- 2019-07-19 JP JP2020533424A patent/JP7046188B2/ja active Active
- 2019-07-19 WO PCT/JP2019/028419 patent/WO2020026845A1/ja active Application Filing
- 2019-07-19 US US17/264,208 patent/US11414754B2/en active Active
- 2019-07-19 KR KR1020217004552A patent/KR20210035217A/ko not_active Application Discontinuation
- 2019-07-19 CN CN201980049511.3A patent/CN112513322B/zh active Active
Patent Citations (4)
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JPH07273052A (ja) * | 1994-03-30 | 1995-10-20 | Hitachi Electron Eng Co Ltd | Cvd装置 |
JPH1046343A (ja) * | 1996-04-05 | 1998-02-17 | Ebara Corp | 液体原料気化装置及びガス噴射装置 |
JP2002535483A (ja) * | 1999-01-13 | 2002-10-22 | 東京エレクトロン株式会社 | 先駆物質液を用いて金属層を化学蒸着する処理装置および方法 |
JP2017504725A (ja) * | 2014-01-21 | 2017-02-09 | アプライド マテリアルズ インコーポレイテッドApplied Materials,Incorporated | 低圧ツール交換を可能にする原子層堆積処理チャンバ |
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JP2022032260A (ja) * | 2020-08-11 | 2022-02-25 | Ckd株式会社 | 気化器 |
JP7311469B2 (ja) | 2020-08-11 | 2023-07-19 | Ckd株式会社 | 気化器 |
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US20210301398A1 (en) | 2021-09-30 |
CN112513322B (zh) | 2023-09-26 |
JPWO2020026845A1 (ja) | 2021-08-05 |
CN112513322A (zh) | 2021-03-16 |
JP7046188B2 (ja) | 2022-04-01 |
US11414754B2 (en) | 2022-08-16 |
KR20210035217A (ko) | 2021-03-31 |
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