WO2015016526A1 - 기판 처리 장치 - Google Patents
기판 처리 장치 Download PDFInfo
- Publication number
- WO2015016526A1 WO2015016526A1 PCT/KR2014/006691 KR2014006691W WO2015016526A1 WO 2015016526 A1 WO2015016526 A1 WO 2015016526A1 KR 2014006691 W KR2014006691 W KR 2014006691W WO 2015016526 A1 WO2015016526 A1 WO 2015016526A1
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- Prior art keywords
- gas
- reaction
- space
- gas injection
- substrate
- Prior art date
Links
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- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
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- 229910052726 zirconium Inorganic materials 0.000 description 1
Images
Classifications
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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
- C23C16/4584—Rigid and flat substrates, e.g. plates or discs the substrate being supported substantially horizontally the substrate being rotated
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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
- C23C16/45523—Pulsed gas flow or change of composition over time
- C23C16/45525—Atomic layer deposition [ALD]
- C23C16/45544—Atomic layer deposition [ALD] characterized by the apparatus
- C23C16/45548—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction
- C23C16/45551—Atomic layer deposition [ALD] characterized by the apparatus having arrangements for gas injection at different locations of the reactor for each ALD half-reaction for relative movement of the substrate and the gas injectors or half-reaction reactor compartments
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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
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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
- C23C16/50—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
-
- 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
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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
- H01J37/3244—Gas supply means
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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
- H01J37/32532—Electrodes
- H01J37/32541—Shape
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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
- H01J37/32532—Electrodes
- H01J37/32568—Relative arrangement or disposition of electrodes; moving means
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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
- H01J37/32623—Mechanical discharge control means
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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
- H01J37/32623—Mechanical discharge control means
- H01J37/32633—Baffles
Definitions
- the present invention relates to a substrate processing apparatus for performing a substrate processing process for a substrate.
- a flat panel display, a solar cell, a predetermined thin film layer, a thin film circuit pattern, or an optical pattern should be formed on a substrate.
- Semiconductor manufacturing processes such as a deposition process, a photo process for selectively exposing the thin film using a photosensitive material, and an etching process for forming a pattern by removing the thin film of the selectively exposed portion are performed.
- the thin film deposition process may be performed in a substrate processing apparatus using chemical vapor deposition or atomic layer deposition.
- the chemical vapor deposition method is to form a thin film on the substrate through a chemical vapor reaction by spraying the process gas for thin film deposition on the substrate, the productivity can be freely controlled due to the relatively thin film deposition rate than the atomic layer deposition method Although there is an advantage, the uniformity and film quality of the thin film are relatively low compared to the atomic layer deposition method.
- a source gas, a purge gas, a reaction gas, and a purge gas are sequentially sprayed on a substrate to form a thin film on the substrate through an atomic layer adsorption reaction, and the thin film is uniformly deposited on the substrate.
- Conventional substrate processing apparatuses for thin film deposition are adapted to favor either chemical vapor deposition or atomic layer deposition. Accordingly, when the thin film is deposited on the substrate through the atomic layer deposition method in the substrate processing apparatus configured to favor the chemical vapor deposition method, the uniformity of the thin film is reduced. On the contrary, when the thin film is deposited on the substrate through the chemical vapor deposition method in the substrate processing apparatus advantageously configured for the atomic layer deposition method, there is a problem that the productivity is low enough to not be used for mass production.
- the present invention has been made to solve the above problems, and it is a technical object of the present invention to provide a substrate processing apparatus capable of freely adjusting productivity while increasing the uniformity of a thin film deposited on a substrate.
- the substrate processing apparatus for achieving the above technical problem is a process chamber for providing a process space; A substrate support part rotatably installed in the process space to support at least one substrate; A chamber lid covering an upper portion of the process chamber to face the substrate support; And a gas injector installed in the chamber lid to spatially separate the process space into first and second reaction spaces and to inject gases for inducing different deposition reactions in the first and second reaction spaces, respectively.
- a gas injector installed in the chamber lid to spatially separate the process space into first and second reaction spaces and to inject gases for inducing different deposition reactions in the first and second reaction spaces, respectively.
- the substrate processing apparatus which concerns on this invention has the following effects.
- a thin film deposited on a substrate by separating the process space of the process chamber into the first and second reaction spaces spatially, and depositing a single layer or a multilayer film on the substrate through different deposition reactions in the first and second reaction spaces, respectively.
- the productivity can be freely controlled while increasing the uniformity of the.
- the ratio of the atomic layer adsorption reaction in the first reaction space and the chemical vapor phase reaction in the second reaction space can be adjusted to easily control the film quality and productivity of the thin film.
- the thin film may be deposited through any one of the atomic layer adsorption reaction in the first reaction space and the chemical vapor phase reaction in the second reaction space, and the dopant may be doped into the thin film through the remaining reaction. Therefore, various substrate processing processes can be performed in one process chamber.
- FIG. 1 is an exploded perspective view illustrating a substrate processing apparatus according to an embodiment of the present invention.
- FIG. 2 is a view for explaining the gas injection unit shown in FIG. 1.
- FIGS. 1 and 2 are diagrams for describing the structural modification of the gas injection unit shown in FIGS. 1 and 2.
- FIG. 7 is a view for explaining a modified embodiment of the space separating means in the gas injection unit of the substrate processing apparatus according to the embodiment of the present invention.
- FIG 8 is a view for explaining a modified embodiment of the first gas injection means in the gas injection unit of the substrate processing apparatus according to the embodiment of the present invention.
- FIG. 9 is a view for explaining a first embodiment of the first gas injection module shown in FIG.
- FIG. 10 is a diagram for describing a second embodiment of the first gas injection module illustrated in FIG. 1.
- FIG. 11 is a diagram for describing a third embodiment of the first gas injection module illustrated in FIG. 1.
- FIG. 12 to 15 are rear views of the first gas injection module for explaining various forms of the electrode inserting portion and the protruding electrode shown in FIG. 11.
- 16 to 18 are rear views of the first gas injection module for explaining various forms of the electrode inserting portion and the protruding electrode illustrated in FIGS. 3 to 5.
- FIG. 19 is a view for explaining a first embodiment of the second gas injection means shown in FIG.
- FIG. 20 is a view for explaining a second embodiment of the second gas injection means shown in FIG.
- FIG. 1 is an exploded perspective view for describing a substrate processing apparatus according to an exemplary embodiment of the present invention
- FIG. 2 is a view for explaining a gas injection unit illustrated in FIG. 1.
- a substrate processing apparatus is rotatably installed in a process chamber 110 and a process chamber 110 to provide a process space to support at least one substrate.
- the process chamber 110 provides a process space for a substrate processing process.
- the process chamber 110 includes a chamber sidewall formed perpendicular to the bottom surface and the bottom surface to define the process space.
- the bottom surface and / or side surface of the process chamber 110 may be in communication with an exhaust port (not shown) for exhausting the gas of the reaction space.
- at least one sidewall of the process chamber 110 is provided with a substrate entrance (not shown) through which the substrate 10 is loaded or unloaded.
- the substrate entrance (not shown) comprises a chamber sealing means (not shown) for sealing the interior of the process space.
- the substrate support part 120 is rotatably installed on the inner bottom surface of the process chamber 110.
- a substrate support 120 is supported by an axis of rotation (not shown) penetrating the central bottom surface of the process chamber 110 and is electrically grounded or has a constant potential (eg, positive potential, negative potential) or Or may be floating.
- the rotating shaft exposed to the outside of the lower surface of the process chamber 110 is sealed by a bellows (not shown) installed on the lower surface of the process chamber 110.
- the substrate supporter 120 supports at least one substrate 10 loaded from an external substrate loading device (not shown).
- the substrate support part 120 may have a disc shape.
- the substrate 10 may be a semiconductor substrate or a wafer.
- the substrate support 120 may include a plurality of substrates 10 arranged at regular intervals on the concentric circles.
- the substrate support part 120 is rotated in a predetermined direction (for example, clockwise direction) according to the rotation of the rotation shaft, so that the substrate 10 moves from the gas injector 140 to the first and second reaction spaces 112 in a predetermined order. And 114) sequentially exposed to the process gases injected into each. Accordingly, the substrate 10 sequentially passes through each of the first and second reaction spaces 112 and 114 according to the rotation and the rotational speed of the substrate support 120. A predetermined thin film is deposited by a deposition reaction in at least one of the second reaction spaces 112 and 114.
- the chamber lid 130 is installed above the process chamber 110 to cover the top of the process chamber 110 to seal the process space.
- the chamber lid 130 supports the gas injector 140 to inject gas onto the substrate 10.
- an airtight member (not shown) may be installed between the chamber lead 130 and the process chamber 110.
- the gas injector 140 is detachably installed in the chamber lid to spatially separate the process space into the first and second reaction spaces 112 and 114, and the first and second reaction spaces 112, 114) Inject each gas to induce different deposition reactions.
- Gas injection unit 140 may include a space separating means 142, the first gas injection means 144, and the second gas injection means 146.
- the space separating means 142 is inserted into the chamber lid 130 to separate the process space of the process chamber 110 into the first and second reaction spaces 112 and 114.
- the space separating means 142 separates the first reaction space 112 into a first gas reaction region 112a and a second gas reaction region 112b.
- the space separating means 142 sprays the first and second purge gas to form a gas barrier by injecting a purge gas downward into a space separation region locally set between the substrate support 120 and the chamber lid 130. It may be made by including the frame (142a, 142b).
- the purge gas may include a non-reactive gas such as nitrogen (N 2), argon (Ar), xenon (Ze), or helium (He).
- the first purge gas injection frame 142a spatially separates the process space of the process chamber 110 into the first and second reaction spaces 112 and 114. That is, the first purge gas injection frame 142a is formed in a straight shape so as to have a length smaller than the diameter of the chamber lead 130, and thus the first lead purge gas injection frame 142a may be formed in the first axial direction Y. It is inserted into the first frame inserting portion 131 of the date form formed on the center line.
- the first purge gas injection frame 142a is formed with a first purge gas injection member (not shown) including a plurality of holes or slits for injecting a purge gas supplied from an external purge gas supply unit (not shown). .
- the first purge gas injection frame 142a may inject the purge gas downward on the center line of the first axis Y of the substrate support part 120 through the first purge gas injection member to form the first purge gas injection frame 142a of the substrate support part 120.
- a gas barrier is formed on the center line of the first axis Y to spatially separate the first and second reaction spaces 112 and 114 from the process space of the process chamber 110.
- the second purge gas injection frame 142b spatially separates the first reaction space 112 into the first gas reaction region 112a and the second gas reaction region 112b. That is, the second purge gas injection frame 142b protrudes from the center of the first purge gas injection frame 142a to the edge portion of the chamber lead 130 to have a length smaller than the radius of the chamber lead 130. It is formed in the form of a date, and is inserted into the second frame inserting portion 133 of the date form formed on the center line of the first frame inserting portion 131 with respect to the second axis direction (X).
- the second purge gas injection frame 142b is formed with a second purge gas injection member (not shown) including a plurality of holes or slits for injecting a purge gas supplied from an external purge gas supply unit (not shown). .
- the second purge gas injection frame 142b is purge gas on the center line of the second axis X in the first reaction space 112 with respect to the second axis direction X through the second purge gas injection member. Spraying downward to form a gas barrier on the second axis X center line in the first reaction space 112 to spatially first react the first gas reaction region 112 with the second gas reaction region 112a. Area 112b.
- the space separating means 142 is formed to have a “T” shape in plan view, so that the substrate supporting part 120 is sprayed downward with a purge gas on a portion of the process chamber 110 defined in the process space.
- a plurality of gas barriers are formed between the chamber lid 130 and the chamber lid 130 to separate the process space of the process chamber 110 into the first and second reaction spaces 112 and 114, and simultaneously form the first reaction space 112. Is separated into a first gas reaction region 112a and a second gas reaction region 112b.
- each of the first gas reaction region 112a and the second gas reaction region 112b and the second reaction space 114 of the first reaction space 112 is locally from the space separating means 142. It is spatially isolated by the gas barrier by the purge gas injected downward.
- the first gas injection means 144 injects a process gas for inducing an atomic layer adsorption reaction into the first reaction space 112.
- the first gas injection means 144 is mutually in the first and second gas reaction regions 112a and 112b of the first reaction space 112 spatially isolated by the space separation means 142.
- By spraying another gas atoms on each substrate 10 sequentially pass through the first gas reaction region 112a, the gas barrier, the second gas reaction region 112b, and the gas barrier by rotation of the substrate support 120. Allow thin films to be deposited by bed adsorption reaction.
- the thin film by the atomic layer adsorption reaction may be a high dielectric film, an insulating film, a metal film and the like.
- the first gas injection means 144 may include first and second gas injection modules 144a and 144b.
- the first gas injection module 144a is detachably installed in the chamber lid 130 so as to overlap the first gas reaction region 112a.
- a first installation part 135 in which the first gas injection module 144a is detachably installed is formed in the chamber lid 130 overlapping the first gas reaction region 112a.
- the first gas injection module 144a has a first gas injection space through which a first gas is supplied from an external first gas supply unit (not shown), and receives the first gas supplied to the first gas injection space. 1 is injected into the gas reaction region 112a.
- the first gas may be a source gas including a main material of a thin film to be deposited on the substrate 10.
- the first gas may include an oxide film, an HQ (hydroquinone) oxide film, a thin film of a high-k material, silicon (Si), a titanium group element (Ti, Zr, Hf, etc.), or a source including an aluminum (Al) material. It may consist of a gas.
- a source gas including a silicon (Si) material may include silane (Silane; SiH4), disilane (Disilane; Si2H6), trisilane (Si3H8), TEOS (Tetraethylorthosilicate), DCS (Dichlorosilane), and HCD ( Hexachlorosilane), TriDMA dimethylaminosilane (TriDMAS), and trisylylamine (TSA).
- the second gas injection module 144b is detachably installed in the chamber lid 130 so as to overlap the second gas reaction region 112b.
- the second lid 137 in which the second gas injection module 144b is detachably installed is formed in the chamber lid 130 overlapping the second gas reaction region 112b.
- the second gas injection module 144b has a second gas injection space through which a second gas is supplied from an external second gas supply unit (not shown), and receives the second gas supplied into the second gas injection space. 2 is injected into the gas reaction region 112b.
- the second gas is a gas which is formed to include some material of the thin film to be deposited on the substrate 10 to form a final thin film by reacting with the first gas, hydrogen (H2), nitrogen (N2), oxygen And a reactive gas such as (O 2), a mixed gas of hydrogen (H 2) and nitrogen (N 2), nitrous oxide (N 2 O), ammonia (NH 3), water (H 2 O), or ozone (O 3).
- the second gas injection means 146 injects a process gas into the second reaction space 114 to induce a chemical vapor reaction.
- the second gas injecting means 146 simultaneously injects a third and fourth gas into the second reaction space 114 spatially separated by the space separating means 142. It is detachably installed in the chamber lid 130 so as to overlap the central region of the reaction space 114.
- a third installation part 139 in which the second gas injection means 146 is detachably installed is formed in the chamber lid 130 overlapping the center region of the second reaction space 114.
- the second gas injection means 146 has third and fourth gas injection spaces in which the third and fourth gases are separately supplied from an external third gas supply unit (not shown). Each of the third and fourth gases supplied to each gas injection space is injected together into the second reaction space 114. Accordingly, each substrate 10 passing through the second reaction space 114 by the rotation of the substrate support part 120 is deposited with a thin film by chemical vapor phase reaction of the third and fourth gases, or a predetermined dopant is deposited. To be doped.
- the third gas may be made of the first gas
- the fourth gas may be made of the second gas.
- the third gas is made of a source gas different from the first gas
- the fourth gas is It may consist of a reaction gas different from the second gas.
- the third gas may be made of a dopant gas
- the fourth gas may be made of the same or different reactant gas as the second gas.
- the substrate processing method using the substrate processing apparatus according to the embodiment of the present invention as described above is as follows.
- the plurality of substrates 10 are loaded on the substrate support part 120 at regular intervals and seated thereon.
- the substrate support 120 on which the plurality of substrates 10 are loaded and driven is driven to move the plurality of substrates 10 in a predetermined direction (for example, in a clockwise direction) under the chamber lid 130.
- the purge gas is injected downward using the space separating means 142 of the gas injector 140 to form a gas barrier in a predetermined region of the substrate support 120.
- the process space is separated into first and second gas reaction zones 112a and 112b and second reaction space 114.
- the first and second gases are individually injected into the corresponding first and second gas reaction regions 112a and 112b through the first gas injection means 144 of the gas injection unit 140 and the The third and fourth gases are injected together into the second reaction space 114 through the second gas injection means 146 of the gas injection unit 140.
- each substrate 10 has a first gas reaction region 112a, a gas barrier region, a second gas reaction region 112b, a gas barrier region, and a second reaction space 114 as the substrate support 120 rotates. ), And the gas barrier region sequentially.
- the substrate 10 may have a first gas.
- the thin film is deposited according to the atomic layer adsorption reaction by the purge gas, the second gas, and the purge gas.
- the second reaction space 114 thin films are deposited on the substrate 10 according to chemical vapor reactions by the third and fourth gases.
- the substrate processing apparatus and the substrate processing method using the same forms a gas barrier according to the purge gas that is locally sprayed on the substrate support 120 to form a first reaction for the atomic layer adsorption reaction.
- the quality required for the thin film to be deposited on the substrate 10 in one process chamber 110 by simultaneously providing the space 112 and the second reaction space 114 for the chemical vapor reaction in the process space of the process chamber 110.
- the atomic layer adsorption reaction and the chemical vapor reaction can be individually controlled, allowing the film quality and productivity of the thin film to be freely controlled.
- the first and second gas injector modules 144a and 144b and the second gas injector 146 of the first gas injector 144 are respectively shown in FIGS. 1 and 2.
- the planar shape may be formed in a rectangular shape, but is not limited thereto.
- the planar shape may be formed in the same or different shape from each other in a polygonal shape such as a rectangular shape, a trapezoidal shape, or a fan shape. That is, according to the present invention, each substrate 10 by using the gas injected from the gas injector 140 while moving each substrate 10 to the lower portion of the gas injector 140 in accordance with the rotation of the substrate support unit 120 The thin film is deposited on the film.
- the shape may be formed in a rectangular shape in a plane, but is not limited thereto, and may be formed in the same or different shape from each other in a polygonal shape such as a rectangular shape, a trapezoidal shape, or a fan shape.
- FIGS. 1 and 2 are diagrams for describing the structural modification of the gas injection unit shown in FIGS. 1 and 2.
- each of the first and second gas injection modules 144a and 144b of the first gas injection means 144 is formed in a trapezoidal shape in plan view.
- the two gas injection means 146 may be formed in a rectangular shape in a planar shape so as to have a larger area than each of the first and second gas injection modules 144a and 144b.
- each of the first and second gas injection modules 144a and 144b having a planar trapezoidal shape is relatively shorter than the other side adjacent to the edge of the substrate support 120. It may have a length.
- the gas injection amount gradually increases from one side to the other side.
- each of the first and second gas injection modules 144a and 144b and the second gas injection means 146 of the first gas injection means 144 respectively.
- one side adjacent to the center of the substrate support portion 120 may be formed to have a relatively short length than the other side adjacent to the edge portion of the substrate support portion 120.
- the second gas injection means 146 may have a relatively larger area than each of the first and second gas injection modules 144a and 144b. Accordingly, in each of the first and second gas injection modules 144a and 144b and the second gas injection means 146, the amount of gas injection increases gradually from one side to the other side.
- each of the first and second gas injection modules 144a and 144b and the second gas injection means 146 of the first gas injection means 144 respectively.
- one side adjacent to the center of the substrate support portion 120 may be formed to have a relatively longer length than the other side adjacent to the edge portion of the substrate support portion 120.
- the second gas injection means 146 may have a relatively larger area than each of the first and second gas injection modules 144a and 144b.
- the gas injection amount gradually decreases from one side to the other side.
- each of the first and second gas injection modules 144a and 144b and the second gas injection means 146 of the first gas injection means 144 may be formed in a flat fan shape, one side adjacent to the center of the substrate support portion 120 may be formed to have a relatively short length than the other side adjacent to the edge portion of the substrate support portion 120.
- the second gas injection means 146 may have a relatively larger area than each of the first and second gas injection modules 144a and 144b.
- the amount of gas injection increases gradually from one side to the other side.
- FIG. 7 is a view for explaining a modified embodiment of the space separating means in the gas injection unit of the substrate processing apparatus according to an embodiment of the present invention, which changes the structure of the space separating means.
- the space separating means will be described.
- the space separating means 142 may include a central portion 142c and first to third wing portions 142d1, 142d2, and 142d3.
- the center portion 142c is formed in a circular shape so as to overlap the center portion of the substrate support portion 120, and is inserted into a center installation portion (not shown) formed in the center portion of the chamber lid 130.
- the central portion 142c is provided with a plurality of holes or slits for downwardly injecting the purge gas supplied from an external purge gas supply part (not shown) to the center portion of the substrate support part 120.
- the first and second wings 142d1 and 142d2 are formed at one side and the other side of the central portion 142a, respectively, and the first and second wings are formed at one side and the other side of the central portion of the chamber lid 130. It is inserted into the installation unit (not shown).
- Each of the first and second wing parts 142d1 and 142d2 has a purge gas supplied from an external purge gas supply part (not shown) to downwardly spray one side and the other side of the central portion of the substrate support part 120.
- a plurality of holes or slits are formed.
- the process space of the process chamber 110 may be spatially spaced by the gas barrier by the purge gas injected by the central portion 142c and the first and second wing portions 142d1 and 142d2, respectively.
- the second reaction spaces 112 and 114 are separated.
- the third wing 142d3 overlaps the first reaction space 112 and is formed in the chamber lid 130 to be positioned between the first and second wing mounts. Is inserted into the installation.
- the third wing 142d3 has a purge gas supplied from an external purge gas supply unit (not shown) downward in the first reaction space 112 between the first and second wing portions 142d1 and 142d2. A plurality of holes or slits for ejecting are formed. Accordingly, the first reaction space 112 is spatially separated into the first and second gas reaction regions 112a and 112b by the gas barrier by the purge gas injected by the third wing 142d3. do.
- Each of the first to third wing parts 142d1, 142d2, and 142d3 may be formed to have an area that gradually increases from the central portion of the substrate support part 120 toward the outer circumferential surface.
- the side surfaces of each of the first to third wing parts 142d1, 142d2, and 142d3 facing the outer circumferential surface from the central portion of the substrate support part 120 may be formed to be inclined at a predetermined slope or may be formed in a step shape.
- Each of the central portion 142c and the first to third wing portions 142d1, 142d2, and 142d3 may be formed as one body having a purge gas injection space that is spatially separated from each other, but is not limited thereto.
- the center part 142c injects the purge gas from the space separating means 142
- the present invention is not limited thereto, and the center part 142c may be configured to supply gas remaining in the center part of the substrate support part 120 to the process chamber. It may also be used as a central pumping port for pumping out of 110.
- FIG. 8 is a view for explaining a modified embodiment of the first gas injection means in the gas injection unit of the substrate processing apparatus according to an embodiment of the present invention, which changes the structure of each of the first gas injection means.
- the configuration of the first gas injection means will be described.
- the space separating means 142 of the gas injector 140 separates the process space of the process chamber 110 into first and second reaction spaces 112 and 114, and divides the first reaction space 112. A plurality of alternating first gas reaction regions 112a1 and 112a2 and a plurality of second gas reaction regions 112b1 and 112b2 are separated.
- the space separating means 142 of the gas injection unit 140 may include a central portion 142c and first to fifth wing portions 142d1, 142d2, 142d3, 142d4, and 142d5.
- the central portion 142c and the first and second wing portions 142d1 and 142d2 separate the process space of the process chamber 110 into the first and second reaction spaces 112 and 114. It plays a role.
- the third to fifth wing parts 142d3, 142d4, and 142d5 may be disposed at regular intervals between the first and second wing parts 142d1 and 142d2 overlapping the first reaction space 112. It is inserted and installed in the 3rd thru
- purge gas supplied from an external purge gas supply part (not shown) is defined in the first reaction space 112.
- a plurality of holes or slits for downward injection are formed in the.
- the first reaction space 112 of the process chamber 110 is spatially formed by a plurality of gas barriers by the purge gas injected by each of the third to fifth wing parts 142d3, 142d4, and 142d5.
- the pair of first gas reaction regions 112a1 and 112a2 and the pair of second gas reaction regions 112b1 and 112b2 alternate with each other are separated.
- a pair of first gas reaction regions 112a1 and 112a2 may be provided between the first and third wing portions 142d1 and 142d3 and between the fourth and fifth wing portions 142d4 and 142d5.
- a pair of second gas reaction regions 112b1 and 112b2 may be provided between the third and fourth wing portions 142d3 and 142d4 and between the second and fifth wing portions 142d2 and 142d5. have.
- the first gas injecting means 144 includes a pair of first gas injecting modules 144a1 and 144a2 and a pair of second injecting a first gas into each of the pair of first gas reaction regions 112a1 and 112a2. And a pair of second gas injection modules 144b1 and 144b2 for injecting a second gas into each of the gas reaction regions 112b1 and 112b2.
- Each of the pair of first gas injection modules 144a1 and 144a2 is detachably installed in the chamber lid 130 so as to overlap each of the pair of first gas reaction regions 112a1 and 112a2.
- the pair of first gas injection modules 144a1 and 144a2 may be detachably installed in the chamber lid 130 overlapping each of the pair of first gas reaction regions 112a1 and 112a2.
- a first mounting portion (not shown) is formed.
- Each of the pair of first gas injection modules 144a1 and 144a2 has a first gas injection space to which the above-described first gas is supplied from an external first gas supply part, and is supplied to the first gas injection space. A first gas is injected into each of the pair of first gas reaction regions 112a1 and 112a2.
- Each of the pair of second gas injection modules 144b1 and 144b2 is detachably installed in the chamber lid 130 so as to overlap each of the pair of second gas reaction regions 112b1 and 112b2.
- the pair of second gas injection modules 144b1 and 144b2 may be detachably installed in the chamber lid 130 overlapping each of the pair of second gas reaction regions 112b1 and 112b2.
- a second mounting portion (not shown) is formed.
- Each of the pair of second gas injection modules 144b1 and 144b2 has a second gas injection space to which the above-described second gas is supplied from an external second gas supply part, and is supplied to the second gas injection space. A second gas is injected into each of the pair of second gas reaction regions 112b1 and 112b2.
- the first gas injection means 144 sequentially injects the first and second gases to each of the substrates 10 that are moved according to the rotation of the substrate support part 120.
- each of the substrates 10 moved by the rotation of the substrate support part 120 includes the pair of first gas reaction regions 112a1 and 112a2 and the pair of second gas reaction regions 112b1 and 112b2.
- the first gas, the purge gas, the second gas, the purge gas, the first gas, the purge gas, the second gas, and the purge gas are sequentially exposed.
- the thin film is deposited by the layer adsorption reaction.
- the first gas injection means 144 includes a pair of first gas injection modules 144a1 and 144a2 and a pair of second gas injection modules 144b1 and 144b2.
- the present invention is not limited thereto, and the first gas injection means 144 may include two or more first and second gas injections alternately arranged to be spatially separated by three or more gas barriers formed by the purge gas. It may be configured to include a module.
- FIGS. 1 to 8 illustrate and explain that one second gas injection means 146 is disposed in the second reaction space 114 to inject the third and fourth gases together, the present invention is not limited thereto.
- two or more second gas injection means 146 may be installed at regular intervals.
- a gas barrier may be formed in the second reaction space 114 by the above-described purge gas, and in this case, each of the two or more second gas injection means 146 may be spatially formed by the additional gas barrier. Can be separated.
- FIG. 9 is a view for explaining a first embodiment of the first gas injection module shown in FIG.
- the first gas injection module 144a according to the first embodiment of the present invention includes a housing 210, a gas supply hole 220, and a gas injection pattern member 230. It is composed.
- the housing 210 is formed in a box shape such that a lower surface thereof has an open gas injection space 212, and downwardly injects the first gas G1 supplied to the gas injection space 212.
- the housing 210 includes a plate 210a and a side wall 210b.
- the plate 210a is formed in a flat plate shape and coupled to an upper surface of the chamber lid 130.
- the side wall 210b protrudes to a predetermined height from the lower edge of the plate 210a to have the gas injection space 212 and is inserted into the first installation part 135 provided in the chamber lid 130 described above.
- the lower surface of the sidewall 210b may be positioned on the same line as the lower surface of the chamber lid 130, may be located inside the chamber lid 130, or may protrude from the lower surface of the chamber lid 130.
- the gas injection space 212 is surrounded by the side wall 210b to communicate with the first gas reaction region 112a of the process space.
- the gas injection space 212 is formed to have a length greater than the length of the substrate 10 seated on the substrate support 120.
- the gas supply hole 220 is formed to vertically penetrate the plate 210a and communicates with the gas injection space 212.
- the gas supply holes 220 may be formed in plural so as to have a predetermined interval along the longitudinal direction of the plate 210a.
- the gas supply hole 220 is connected to an external first gas supply unit through a gas supply pipe (not shown) to supply the first gas G1 supplied from the first gas supply unit to the gas injection space 212. .
- the gas injection pattern member 230 injects the first gas G1 supplied to the gas injection space 212 downward into the first gas reaction region 112a.
- the gas injection pattern member 230 may be integrally formed on the bottom surface of the sidewall 210b to cover the bottom surface of the gas injection space 212, or may be formed in the form of an insulating plate (or shower head) made of an insulating material having no polarity. It may be coupled to the bottom surface of the side wall 210b to cover the bottom surface of the injection space 212. Accordingly, the gas injection space 212 is provided between the plate 210a and the gas injection pattern member 230 and is supplied to the gas injection space 212 through the gas supply hole 220. G1 is diffused and buffered in the gas injection space 212 and injected into the first gas reaction region 112a through the gas injection pattern member 230.
- the gas injection pattern member 230 includes a gas injection pattern 232 for injecting the first gas G1 supplied to the gas injection space 212 toward the substrate 10.
- the gas injection pattern 232 is formed in the form of a plurality of holes (or a plurality of slits) penetrating the gas injection pattern member 230 to have a predetermined interval (the first gas supplied to the gas injection space 212 ( G1) is injected at a predetermined pressure.
- the diameter and / or spacing of each of the plurality of holes may be set such that a uniform amount of gas is injected into the entire region of the substrate 10 which is moved according to the rotation of the substrate support part 120.
- the diameter of each of the plurality of holes is the outer side of the first gas injection module 144a adjacent to the edge of the substrate support 120 from the inner side of the first gas injection module 144a adjacent to the center of the substrate support 120. Can be increased gradually.
- the gas injection pattern member 230 may be omitted.
- the first gas G1 may be injected onto the substrate 10 through the gas injection space 212.
- FIG. 10 is a diagram for describing a second embodiment of the first gas injection module illustrated in FIG. 1.
- the first gas injection module 144a includes a housing 210, a gas supply hole 220, an insulating member 240, and a plasma electrode 250. It is configured by.
- the first gas injection module illustrated in FIG. 9 is injected onto the substrate 10 without the first gas G1 being activated. However, it is necessary to activate and spray the first gas G1 on the substrate 10 according to the material of the thin film to be deposited on the substrate 10. Accordingly, in the first gas injection module 144a according to the second embodiment of the present invention, the plasma electrode 250 is added to the gas injection space 212 of the gas injection module illustrated in FIG. 9. .
- the insulating member insertion hole 222 communicating with the gas injection space 212 is formed in the plate 210a of the housing 210 described above.
- the housing 210 is electrically connected to the chamber lid 130, whereby the sidewall 210b of the housing 210 described above has a first potential for forming a plasma together with the plasma electrode 250.
- the branch serves as the first electrode, ie the ground electrode.
- the insulating member 240 is inserted into the insulating member insertion hole 222.
- An electrode insertion hole 242 is formed in the insulating member 240 to communicate with the gas injection space 212, and the plasma electrode 250 is inserted into the electrode insertion hole 242.
- the plasma electrode 250 is inserted into the gas injection space 212 and is disposed in parallel with the sidewall 210b or surrounded by the sidewall 210b.
- the lower surface of the plasma electrode 250 may be positioned on the same line as the lower surface of the sidewall 210b or may not protrude or protrude to have a predetermined height from the lower surface of the sidewall 210b.
- the plasma electrode 250 serves as a second electrode having a second potential for forming a plasma according to the plasma power supplied from the plasma power supply 260. Accordingly, a plasma is formed between the plasma electrode 250 and the sidewall 210b according to the potential difference between the plasma electrode 250 and the sidewall 210b of the housing 210 according to the plasma power supply, and thus the gas injection space.
- the first gas G1 supplied to 212 is activated by the plasma and injected into the first gas reaction region 112a.
- a gap (or gap) between the plasma electrode 250 and the sidewall 210b is defined by the plasma electrode 250. And narrower than the interval between the substrate 10 and the substrate 10. Accordingly, the present invention does not form the plasma between the substrate 10 and the plasma electrode 250, and plasma is disposed between the sidewalls 210b and the plasma electrode 250 disposed side by side to be spaced apart from the substrate 10. By forming it, it is possible to prevent the substrate 10 and / or the thin film from being damaged by the plasma.
- the plasma power supply may be high frequency power or Radio Frequency (RF) power, for example, Low Frequency (LF) power, Middle Frequency (MF), High Frequency (HF) power, or Very High Frequency (VHF) power.
- RF Radio Frequency
- LF Low Frequency
- MF Middle Frequency
- HF High Frequency
- VHF Very High Frequency
- the LF power has a frequency in the range of 3 kHz to 300 kHz
- the MF power has a frequency in the range of 300 kHz to 3 MHz
- the HF power has a frequency in the range of 3 MHz to 30 MHz
- the VHF power has a frequency in the range of 30 MHz to It may have a frequency in the 300MHz range.
- An impedance matching circuit may be connected to the feed cable connecting the plasma electrode 250 and the plasma power supply 260.
- the impedance matching circuit matches the load impedance and the source impedance of the plasma power supplied from the plasma power supply 260 to the plasma electrode 250.
- the impedance matching circuit may be composed of at least two impedance elements (not shown) composed of at least one of a variable capacitor and a variable inductor.
- FIG. 11 is a diagram for describing a third embodiment of the first gas injection module illustrated in FIG. 1.
- the first gas injection module 144a includes a first electrode frame 310, a second electrode frame 320, and an insulating frame 330. do.
- the first electrode frame 310 is inserted into and installed in the first mounting part 135 formed in the chamber lead 130 so as to overlap the first gas reaction region 112a of the substrate support part 120. And electrically grounded through) serves as a first electrode GE having a first potential for plasma formation.
- the first electrode frame 310 is provided with a plurality of electrode insertion portions EIPs formed to have a predetermined interval. Each of the plurality of electrode insertion portions EIP is formed to penetrate the first electrode frame 310 in the vertical direction Z.
- the second electrode frame 320 is coupled to an upper surface of the first electrode frame 310 with an insulating frame 330 interposed therebetween to serve as a second electrode having a second potential for plasma formation and a first gas ( Simultaneously sprays G1).
- the second electrode frame 320 may include a frame body 321, a plurality of protruding electrodes PE, a gas supply passage 323, a plurality of gas injection passages 325, and a plurality of gas injection holes. And 327.
- the frame body 321 is formed in a flat shape having a predetermined thickness and is coupled to an upper surface of the first electrode frame 310 with an insulating frame 330 interposed therebetween.
- the frame body 321 is electrically connected to the plasma power supply unit 340 through a power cable 342, and thus, the first body of the first electrode frame 310 is controlled by plasma power supplied from the plasma power supply unit 340. It has a second potential different from the potential.
- the plasma power supply 340 supplies the above-described plasma power to the frame body 321 through a power cable 342.
- the above-described impedance matching circuit (not shown) may be connected to the power cable 342.
- Each of the plurality of protruding electrodes PE has a cross-sectional area smaller than the area of the electrode inserting portion EIP formed in the first electrode frame 310 from the lower surface of the frame body 321. It protrudes toward and penetrates through the insulating frame 330 and is inserted into the electrode inserting portion EIP of the first electrode frame 310. Accordingly, each side surface of the protruding electrode PE is spaced apart from each side surface of the electrode inserting portion EIP at regular intervals, and thus, between each side surface of the protruding electrode PE and each side surface of the electrode inserting portion EIP.
- the gap space GS is provided.
- Each of the plurality of protruding electrodes PE may protrude in the shape of a circle column or a polygonal column having the same cross-section as that of the plane of the electrode insertion unit EIP so as to be surrounded by each side of the electrode insertion unit EIP.
- each of the plurality of protruding electrodes PE may be convex or concave rounded so that each side edge portion has a predetermined curvature in order to prevent or minimize arcing generated at the edge portion.
- the plurality of protruding electrodes PE are second electrodes having a second potential by plasma power supplied from the plasma power supply unit 340 through the frame body 321 to serve as plasma electrodes for plasma formation. do.
- the gas supply flow path 323 is formed inside the frame body 321 to branch the first gas G1 supplied from the first gas supply part to each of the plurality of gas injection flow paths 325.
- the auxiliary gas for generating plasma may be mixed with the first gas G1.
- At least one gas supply passage 323 formed at a predetermined depth from an upper surface of the frame body 321 and connected to the first gas supply unit through a gas supply pipe (not shown), at least one A gas branch formed in the first horizontal direction (Y) in the frame body 321 so as to communicate with the gas supply hole 323a to branch the first gas G1 supplied through the gas supply hole 323a.
- a flow path 323b and a plurality of communication holes 323c communicating each of the gas branch flow paths 323b and the plurality of gas injection flow paths 325 may be included.
- the gas branch flow path 323b is formed in a straight shape so as to be exposed to both sides of the first horizontal direction (Y) of the side of the frame body 321, both ends thereof are sealed by welding or sealed cap Sealed by (not shown).
- Each of the plurality of gas injection flow paths 325 is an internal space of the frame body 321 to which the first gas G1 branched by the gas supply flow path 323 is supplied. That is, the frame body 321 is formed at regular intervals along the second horizontal direction X crossing the gas branch flow path 323b so as to communicate with each of the plurality of communication holes 323c.
- each of the plurality of gas injection flow paths 325 is formed in a straight shape to be exposed to both sides of the second horizontal direction (X) of the side of the frame body 321, both ends of the weld (325a) Sealed by or sealed by a sealing cap 325a.
- Each of the plurality of gas injection holes 327 is formed on a lower surface of the frame body 321 so as to communicate with each of the plurality of gas injection flow paths 325 overlapping the gap space GS, and thus, the plurality of gas injection flow paths 325.
- the first gas G1 supplied from each is injected into the gap space GS. That is, each of the plurality of gas injection holes 327 is formed so as to vertically penetrate each of the plurality of gas injection passages 325 overlapping the gap space GS and the lower surface of the frame body 321, and thus the plurality of gas injection holes 327.
- Each of the flow paths 325 communicates with the gap space GS.
- the insulating frame 330 is formed of an insulating material, for example, a ceramic material, and is installed between the first and second electrode frames 310 and 320 to electrically insulate the first and second electrode frames 310 and 320. Let's do it. That is, the insulating frame 330 covers the remaining area of the lower surface of the second electrode frame 320 except for the plurality of protruding electrodes PE and the plurality of gas injection holes 327. Removably coupled to the lower surface of the 320. In the insulating frame 330, a plurality of electrode through parts 332 through which the protruding electrodes PE of the second electrode frame 320 are inserted are formed, and the plurality of electrode through parts 332 is formed. Each is formed to have the same cross-sectional shape as the protruding electrode PE.
- the first distance D1 between the lower surface of the first electrode frame 310 and the upper surface of the substrate 10 is the second distance between the lower surface of the protruding electrode PE and the upper surface of the substrate 10. It may be the same as or different from D2).
- the first and second distances D1 and D2 may be the same, and in this case, a bottom surface of the protruding electrode PE may correspond to a bottom surface of the first electrode frame 310. It is located on the same line as.
- the first and second distances D1 and D2 may be different from each other.
- the protruding electrode PE may extend from the bottom surface of the first electrode frame 310 to the substrate 10.
- the insulating frame is formed to be longer than the overall thickness of the insulating frame 330 and the first electrode frame 310 to protrude in the upper surface direction, or to not protrude in the upper surface direction of the substrate 10 from the lower surface of the first electrode frame 310. It may be formed shorter than the overall thickness of the 330 and the first electrode frame (310).
- the first electrode frame 310, the insulating frame 330, and the second electrode frame 320 described above may be integrated into a single module and detachably coupled to the first installation unit 135 of the chamber lid 130. have.
- the first gas injection module 144a uses an electric field (E-field) according to a potential difference between the plurality of protruding electrodes PE and the first electrode frame 310.
- E-field electric field
- a first gas G1 activated by the plasma is formed by forming a plasma in the gap space GS or in a lower region of the gap space GS from the first gas G1 injected into the gap space GS. It inject
- the plasma is formed in the gap space GS or in the lower region of the gap space GS according to the protruding length of the protruding electrode PE.
- FIG. 12 to 15 are rear views of the first gas injection module illustrated in FIG. 11, to explain various types of electrode inserts and protruding electrodes illustrated in FIG. 11. Accordingly, in the following description, only various forms of the electrode inserting portion and the protruding electrode will be described.
- the first gas injection module 144a includes one electrode inserting portion EIP and one protruding electrode PE.
- the electrode inserting portion EIP according to the modified example is formed to have a rectangular shape in plan.
- the protruding electrode PE according to the modified example is formed in a rectangular pillar shape so as to be spaced apart by a predetermined distance from the side of the electrode inserting portion EIP.
- the above-described gap space GS is provided between the side surface of the electrode insertion part EIP and the protruding electrode PE, and the plurality of gas injection holes 327 formed in the second electrode frame 320 are provided in the gap space GS. ), The first gas is injected.
- the first gas injection module 144a includes a plurality of electrode inserting parts EIP and a plurality of protruding electrodes PE.
- the electrode inserting portion EIP according to another modified example may be formed to have a circular shape in a plane and disposed in a lattice form.
- the protruding electrode PE according to another modified example is formed in a circular columnar shape so as to be spaced apart by a predetermined distance from the side of the electrode inserting portion EIP.
- the above-described gap space GS is provided between the side surface of the electrode insertion part EIP and the protruding electrode PE, and the plurality of gas injection holes 327 formed in the second electrode frame 320 are provided in the gap space GS. ), The first gas is injected.
- the electrode inserting portion EIP is formed in a lattice form by forming a square (or rectangular) shape or a rounded (or rectangular) shape in which each corner portion is rounded. As shown in FIG. 15, it may be formed in a polygonal shape having an interior angle of 90 degrees or more in plan view and arranged in a honeycomb form.
- the protruding electrode PE may be formed in a circular column shape so as to be spaced apart at a predetermined distance from the side of the electrode inserting portion EIP.
- the present invention is not limited thereto, and may be formed in the same pillar shape as the electrode insertion part EIP or may have a pillar shape to have a polygonal cross section having an internal angle of 90 degrees or more.
- FIGS. 16 to 18 are rear views of the first gas injection module illustrated in FIGS. 3 to 5, which illustrate various types of electrode inserts and protruding electrodes illustrated in FIGS. 3 to 5. Accordingly, in the following description, only various forms of the electrode inserting portion and the protruding electrode will be described.
- the first gas injection module 144a illustrated in FIGS. 3 to 5 is formed to have the same structure as shown in any one of FIGS. 9 to 11, and the housing 210 is trapezoidal in plan view. It may be formed to have a shape.
- the first gas injection module 144a When the first gas injection module 144a according to another modification is formed in the same structure as shown in FIG. 11, the first gas injection module 144a includes one electrode inserted as shown in FIG. 16. A part EIP and one protruding electrode PE are included.
- the electrode insertion portion EIP is formed to have a trapezoidal shape in plan view.
- the protruding electrode PE is formed in a rectangular pillar shape so as to be spaced apart from the side surface of the electrode inserting portion EIP by a predetermined distance and surrounded by the electrode inserting portion EIP.
- one protruding electrode PE is inserted into the electrode inserting portion EIP, but the present invention is not limited thereto, and the plurality of protruding electrodes are arranged side by side at regular intervals in the electrode inserting portion EIP. (PE) may be inserted.
- the above-described gap space GS is provided between the side surface of the electrode insertion part EIP and the protruding electrode PE, and the plurality of gas injection holes 327 formed in the second electrode frame 320 are provided in the gap space GS. ),
- the first gas is injected.
- the number of the plurality of gas injection holes 327 may increase from one side of the first gas injection module 144a to the other side, and in this case, the first gas injection module 144a may be moved from one side.
- the gas injection amount may gradually increase toward the side.
- the one protruding electrode PE is formed in a columnar shape having a trapezoidal shape in plan view and surrounded by an inner surface of the trapezoidal electrode inserting portion EIP.
- the side surface of the one protruding electrode (PE) is spaced apart from the inner surface of the electrode insertion portion (EIP) at a predetermined interval so that the side surface of the one protruding electrode (PE) between the inner surface of the electrode insertion portion (EIP)
- a gap gap GS is provided at regular intervals.
- the bottom surface of the protruding electrode PE illustrated in FIGS. 16 and 17 may be formed to be inclined from the inner side to the outer side of the first electrode frame 310 adjacent to the center of the substrate support part 120.
- one lower surface of the protruding electrode PE adjacent to the inner side of the first electrode frame 310 is positioned on the same line as the lower surface of the first electrode frame 310, and the lower surface of the first electrode frame 310 is disposed.
- the other lower surface of the protruding electrode PE adjacent to the outside is positioned inside the first electrode frame 310 so that the lower surface of the protruding electrode PE is at a predetermined angle with respect to the lower surface of the first electrode frame 310. It is formed to be inclined.
- the first gas injection module 144a When the first gas injection module 144a according to another modification is formed in the same structure as shown in FIG. 11, the first gas injection module 144a includes a plurality of electrodes as illustrated in FIG. 18. The insertion part EIP and the plurality of protruding electrodes PE are included.
- the electrode insertion part EIP may be formed to have a circular shape in a plane, and may be disposed to have a trapezoidal shape in a plane.
- the protruding electrode PE is formed in a circular column shape so as to be spaced apart by a predetermined distance from the side of the electrode inserting portion EIP.
- the above-described gap space GS is provided between the side surface of the electrode insertion part EIP and the protruding electrode PE, and the plurality of gas injection holes 327 formed in the second electrode frame 320 are provided in the gap space GS. ), The first gas is injected.
- the electrode inserting portion EIP illustrated in FIG. 18 is not limited to a circular shape in plan view, and as illustrated in FIGS. 14 and 15, the electrode inserting portion EIP may be formed to have a polygonal cross section having an angle of 90 degrees or more. Can be.
- the protruding electrode PE is not limited to having a circular pillar shape surrounded by the electrode insertion portion EIP, and is formed in the same pillar shape as the electrode insertion portion EIP or has a polygonal angle of 90 degrees or more. It may be formed in the form of a column to have a cross section in the form.
- the second gas injection module 144b illustrated in FIG. 1 is configured in the same manner as the first gas injection module 144a described above with reference to FIGS. 9 to 18 and is supplied from an external second gas supply unit. Since all are the same except that the gas is injected into the second gas reaction region of the first reaction space, description thereof will be omitted.
- FIG. 19 is a view for explaining a first embodiment of the second gas injection means shown in FIG.
- the second gas injection means 146 is a housing 410 consisting of a plate 410a and a side wall 410b, the interior of the housing 410 A partition member 415 that separates the space into third and fourth gas injection spaces 412a and 412b, and formed on one side of the plate 410a to form a third gas (3) in the third gas injection space 412a.
- a gas injection coupled to the lower surface of the housing 410 to cover the lower surfaces of the four gas supply holes 420b and the third and fourth gas injection spaces 412a and 412b to inject gas through the gas injection pattern 432. It may be configured to include a pattern member 430.
- the internal space of the housing 410 is spatially separated into the third and fourth gas injection spaces 412a and 412b by the partition member 415,
- the first or second gas injection modules 144a and 144b shown in FIG. 9 are provided with different gases G3 and G4 respectively supplied to the third and fourth gas injection spaces 412a and 412b. Since it is the same, a description thereof will be omitted.
- the second gas injection means 146 injects the third gas G3 into the aforementioned second reaction space 114 through the third gas injection space 412a and at the same time, the fourth gas injection space.
- the fourth gas G4 is injected into the aforementioned second reaction space 114 through 412b. Accordingly, in each of the substrates 10 passing through the second reaction space 114 by the rotation of the substrate support 120 described above, a thin film is deposited by chemical vapor phase reaction of the third and fourth gases or a predetermined dopant. Is to be doped.
- FIG. 20 is a view for explaining a second embodiment of the second gas injection means shown in FIG. 1, which further forms the plasma electrode 450 in the third gas injection space 412a shown in FIG. 19. will be. In the following, only different configurations will be described.
- the third gas G3 is injected onto the substrate without being activated. However, it is necessary to activate and spray the third gas G3 on the substrate according to the material of the thin film to be deposited on the substrate. Accordingly, the second gas injection means 146 according to the second embodiment activates and injects the third gas G3 onto the substrate.
- the second gas injection means 146 may further include a plasma electrode 450 inserted into the third gas injection space 412a.
- the insulating member insertion hole 410c communicating with the third gas injection space 412a is formed in the plate 410a of the housing 410 described above, and the insulating member 440 is formed in the insulating member insertion hole 410c. ) Is inserted.
- An electrode insertion hole 442 communicating with the third gas injection space 412a is formed in the insulating member 440, and the plasma electrode 450 is inserted into the electrode insertion hole 442.
- the plasma electrode 450 is inserted into the third gas injection space 412a to be disposed or surrounded by the sidewall 410b and the partition member 415 in parallel.
- the lower surface of the plasma electrode 450 may be positioned on the same line as the lower surface of the sidewall 410b or may not protrude or protrude to have a predetermined height from the lower surface of the sidewall 410b.
- the plasma electrode 450 forms a plasma from the third gas G3 supplied to the third gas injection space 412a according to the plasma power supplied from the plasma power supply 460.
- the plasma is formed by an electric field applied between the plasma electrode 450, the sidewall 410b, and the partition member 415 according to the plasma power source. Accordingly, the third gas G3 supplied to the third gas injection space 412a is activated by the plasma and injected into the second reaction space 114.
- an interval (or gap) between the plasma electrode 450 and the sidewall 410b is set to be smaller than an interval between the plasma electrode 450 and the substrate. Accordingly, the present invention does not form the plasma between the substrate and the plasma electrode 450, and plasma is disposed between the plasma electrode 450 and the sidewall 410b and the partition member 415 disposed side by side to be spaced apart from the substrate. By forming, it is possible to prevent the substrate and / or the thin film from being damaged by the plasma.
- the plasma electrode 450 is illustrated and described as being disposed only in the third gas injection space 412a.
- the present invention is not limited thereto, and the plasma electrode 450 may also be disposed in the fourth gas injection space 412b.
- the same may be arranged to form a plasma in the fourth gas injection space (412b), in this case, the fourth gas (G4) supplied to the fourth gas injection space (412b) is also activated by the plasma to It is injected into the second reaction space 114.
- the second gas injection means 146 may be configured in the same manner as the first and second gas injection module (144a, 144b) shown in Figure 11, in this case,
- the mixed gas in which the third and fourth gases G3 and G4 are mixed is supplied to the gas supply passage 323 of the second electrode frame 320, and the mixed gas is the gas injection passage 325 described above. And is injected into the gap space GS through the plurality of gas injection holes 327 and activated by plasma generated in the gap space GS according to the potential difference between the first electrode frame 310 and the protruding electrode PE. And is injected into the second reaction space 114.
- the substrate processing apparatus uses a purge gas to spatially separate the process space of the process chamber into the first and second reaction spaces, and through different deposition reactions in the first and second reaction spaces, respectively.
- productivity can be freely controlled while increasing the uniformity of the thin film deposited on the substrate.
- the present invention can adjust the ratio of the atomic layer adsorption reaction in the first reaction space and the chemical gas phase reaction in the second reaction space can easily control the film quality and productivity of the thin film.
- the substrate processing apparatus deposits a thin film through any one of an atomic layer adsorption reaction in the first reaction space and a chemical vapor reaction in the second reaction space, and the thin film is deposited on the thin film through the remaining reactions. Since the desired dopant may be doped, various substrate processing processes may be performed in one process chamber.
Abstract
Description
Claims (15)
- 공정 공간을 제공하는 공정 챔버;상기 공정 공간에 회전 가능하게 설치되어 적어도 하나의 기판을 지지하는 기판 지지부;상기 기판 지지부에 대향되도록 상기 공정 챔버의 상부를 덮는 챔버 리드; 및상기 챔버 리드에 설치되어 상기 공정 공간을 공간적으로 제 1 및 제 2 반응 공간으로 분리시키고, 상기 제 1 및 제 2 반응 공간 각각에서 서로 다른 증착 반응을 유도하기 위한 가스를 분사하는 가스 분사부를 포함하여 구성되는 것을 특징으로 하는 기판 처리 장치.
- 제 1 항에 있어서,상기 제 1 반응 공간에서는 원자층 흡착 반응에 의해 상기 기판에 박막이 증착되고,상기 제 2 반응 공간에서는 화학적 기상 반응에 의해 상기 기판에 박막이 증착되는 것을 특징으로 하는 기판 처리 장치.
- 제 1 항에 있어서,상기 기판은 상기 기판 지지부의 회전에 따라 상기 제 1 및 제 2 반응 공간을 통과하고,상기 기판에는 상기 가스 분사부로부터 상기 제 1 및 제 2 반응 공간 중 적어도 어느 하나의 반응 공간에 분사되는 가스에 의한 증착 반응에 따라 박막이 증착되는 것을 특징으로 하는 기판 처리 장치.
- 제 2 항에 있어서,상기 가스 분사부는,상기 공정 챔버의 공정 공간을 공간적으로 제 1 및 제 2 반응 공간으로 분리하는 공간 분리 수단;화학적 기상 반응을 위한 공정 가스를 상기 제 1 반응 공간에 분사하는 제 1 가스 분사 수단; 및원자층 흡착 반응을 위한 공정 가스를 상기 제 2 반응 공간에 분사하는 제 2 가스 분사 수단을 포함하여 구성된 것을 특징으로 하는 기판 처리 장치.
- 제 4 항에 있어서,상기 공간 분리 수단은 상기 제 1 및 제 2 반응 공간 사이에 퍼지 가스를 분사하여 가스 장벽을 형성하는 것을 특징으로 하는 기판 처리 장치.
- 제 4 항에 있어서,상기 공간 분리 수단은,상기 제 1 및 제 2 반응 공간 사이에 퍼지 가스를 분사하여 가스 장벽을 형성하고,상기 제 1 반응 공간에 국부적으로 퍼지 가스를 분사하여 상기 제 1 반응 공간을 적어도 하나의 제 1 가스 반응 영역과 적어도 하나의 제 2 가스 반응 영역으로 분리하는 것을 특징으로 하는 기판 처리 장치.
- 제 6 항에 있어서,상기 제 1 가스 분사 수단은,상기 적어도 하나의 제 1 가스 반응 영역에 제 1 가스를 분사하는 적어도 하나의 제 1 가스 분사 모듈; 및상기 적어도 하나의 제 2 가스 반응 영역에 상기 제 1 가스와 다른 제 2 가스를 분사하는 적어도 하나의 제 2 가스 분사 모듈을 포함하여 구성된 것을 특징으로 하는 기판 처리 장치.
- 제 7 항에 있어서,상기 제 1 가스는 상기 박막의 물질을 포함하는 소스 가스이고,상기 제 2 가스는 상기 제 1 가스와 반응하는 반응 가스인 것을 특징으로 하는 기판 처리 장치.
- 제 8 항에 있어서,상기 제 1 및 제 2 가스 분사 모듈 중 적어도 하나는 제 1 전극과 상기 제 1 전극에 둘러싸이는 제 2 전극 간의 전위차에 의해 발생되는 플라즈마를 이용해 상기 제 1 및 제 2 전극 사이에 분사되는 해당 가스를 활성화시켜 분사하는 것을 특징으로 하는 기판 처리 장치.
- 제 9 항에 있어서,상기 제 1 및 제 2 전극 각각은 원 또는 다각 형태의 단면을 가지는 것을 특징으로 하는 기판 처리 장치.
- 제 7 항 내지 제 10 항 중 어느 한 항에 있어서,상기 제 1 및 제 2 가스 분사 모듈은 상기 기판 지지부의 중심부에 인접한 일측변과 상기 기판 지지부의 에지부에 인접한 타측변을 가지며,상기 일측변의 길이는 상기 타측변의 길이와 동일하거나 다른 것을 특징으로 하는 기판 처리 장치.
- 제 1 항 내지 제 10 항 중 어느 한 항에 있어서,상기 제 2 가스 분사 수단은 상기 제 2 반응 공간에 제 3 가스와 상기 제 3 가스와 다른 제 4 가스를 함께 분사하는 것을 특징으로 하는 기판 처리 장치.
- 제 12 항에 있어서,상기 제 3 가스는 상기 박막의 물질을 포함하는 소스 가스이고,상기 제 4 가스는 상기 제 2 가스와 반응하는 반응 가스인 것을 특징으로 하는 기판 처리 장치.
- 제 12 항에 있어서,상기 제 2 가스 분사 수단은 플라즈마 전극과 상기 플라즈마 전극을 둘러싸는 접지 전극에 의해 발생되는 플라즈마를 이용해 상기 제 3 및 제 4 가스 중 적어도 한 종류의 가스를 활성화시켜 분사하는 것을 특징으로 하는 기판 처리 장치.
- 제 14 항에 있어서,상기 제 2 가스 분사 수단은 상기 기판 지지부의 중심부에 인접한 일측변과 상기 기판 지지부의 에지부에 인접한 타측변을 가지며,상기 일측변의 길이는 상기 타측변의 길이와 동일하거나 다른 것을 특징으로 하는 기판 처리 장치.
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CN201480043656.XA CN105453224B (zh) | 2013-07-31 | 2014-07-23 | 基板处理设备 |
US14/904,402 US20160153086A1 (en) | 2013-07-31 | 2014-07-23 | Substrate processing apparatus |
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KR10-2013-0091252 | 2013-07-31 | ||
KR1020130091252A KR102115337B1 (ko) | 2013-07-31 | 2013-07-31 | 기판 처리 장치 |
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US (1) | US20160153086A1 (ko) |
KR (1) | KR102115337B1 (ko) |
CN (2) | CN105453224B (ko) |
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KR102535194B1 (ko) * | 2018-04-03 | 2023-05-22 | 주성엔지니어링(주) | 기판처리장치 |
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Also Published As
Publication number | Publication date |
---|---|
TWI680204B (zh) | 2019-12-21 |
CN108546931B (zh) | 2021-03-23 |
KR20150015322A (ko) | 2015-02-10 |
CN105453224B (zh) | 2018-05-22 |
CN105453224A (zh) | 2016-03-30 |
TW201519353A (zh) | 2015-05-16 |
CN108546931A (zh) | 2018-09-18 |
TWI639207B (zh) | 2018-10-21 |
KR102115337B1 (ko) | 2020-05-26 |
TW201843346A (zh) | 2018-12-16 |
US20160153086A1 (en) | 2016-06-02 |
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