WO2005088692A1 - 基板処理装置および半導体装置の製造方法 - Google Patents
基板処理装置および半導体装置の製造方法 Download PDFInfo
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- WO2005088692A1 WO2005088692A1 PCT/JP2005/004299 JP2005004299W WO2005088692A1 WO 2005088692 A1 WO2005088692 A1 WO 2005088692A1 JP 2005004299 W JP2005004299 W JP 2005004299W WO 2005088692 A1 WO2005088692 A1 WO 2005088692A1
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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
- C23C16/22—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 deposition of inorganic material, other than metallic material
- C23C16/30—Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides
- C23C16/34—Nitrides
- C23C16/345—Silicon nitride
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- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02225—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer
- H01L21/0226—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process
- H01L21/02263—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase
- H01L21/02271—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition
- H01L21/0228—Forming insulating materials on a substrate characterised by the process for the formation of the insulating layer formation by a deposition process deposition from the gas or vapour phase deposition by decomposition or reaction of gaseous or vapour phase compounds, i.e. chemical vapour deposition deposition by cyclic CVD, e.g. ALD, ALE, pulsed CVD
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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
- C23C16/455—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]
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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
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- 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
- C23C16/45546—Atomic layer deposition [ALD] characterized by the apparatus specially adapted for a substrate stack in the ALD reactor
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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
- C23C16/455—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
- C23C16/458—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
- C23C16/50—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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- 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
- H01L21/02104—Forming layers
- H01L21/02107—Forming insulating materials on a substrate
- H01L21/02109—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates
- H01L21/02112—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer
- H01L21/02123—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon
- H01L21/0217—Forming insulating materials on a substrate characterised by the type of layer, e.g. type of material, porous/non-porous, pre-cursors, mixtures or laminates characterised by the material of the layer the material containing silicon the material being a silicon nitride not containing oxygen, e.g. SixNy or SixByNz
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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
- H01L21/67017—Apparatus for fluid treatment
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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
- H01L21/67109—Apparatus for thermal treatment mainly by convection
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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
- H01L21/67242—Apparatus for monitoring, sorting or marking
- H01L21/67253—Process monitoring, e.g. flow or thickness monitoring
Definitions
- the present invention relates to a substrate processing apparatus and a method for manufacturing a semiconductor device, and more particularly to a substrate processing apparatus for processing a semiconductor substrate using a gas and a method for manufacturing a semiconductor device.
- a reaction gas is allowed to flow for a certain time to form a film on a substrate.
- the substrate may be rotated to eliminate the influence of the distance of the gas supply location and to improve the uniformity of the film thickness within the substrate surface.
- the film is rotated many times during film formation in order to supply a continuous gas in which the film formation time is generally longer than the rotation period, it is necessary to strictly consider the rotation period.
- ALD Advanced Layer Deposition
- gas A and B are alternately flowed, the gas A supply ⁇ purge (removal gas removal) ⁇ gas B supply ⁇ purge (remaining gas removal) t ⁇ ⁇ cycle is repeated.
- the membrane advances.
- the time required for this one cycle is defined as a gas supply cycle T (second), and the rotation cycle of the substrate is defined as P (second Z rotation). If the gas supply cycle and the rotation of the substrate are synchronized, that is, if the integer multiple of T and the integer multiple of P match, and the matched number is L (seconds), then the gas will It is supplied to the same point with the same force (see Fig. 1), and contrary to the intention to eliminate the influence of the distance from the gas supply port by rotation, there is a situation where uniformity cannot be improved.
- a main object of the present invention is to prevent or suppress the synchronization of the reaction gas supply cycle and the rotation cycle of the substrate, and to reduce the uniformity of the thickness of the formed film in the substrate surface. Prevent dangling It is an object of the present invention to provide a substrate processing apparatus and a method of manufacturing a semiconductor device which can be mounted.
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- a substrate processing apparatus that alternately supplies at least two types of gases A and B multiple times to form a desired film on the substrate
- the gas supply cycle which is defined by the time from the flow of gas A to the next flow of gas A, and the rotation cycle of the substrate are synchronized at least as long as the gas is alternately supplied a predetermined number of times.
- a substrate processing apparatus provided with a control unit for controlling a rotation cycle or a gas supply cycle of a substrate.
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- a substrate processing apparatus that alternately supplies at least two types of gases A and B multiple times to form a desired film on the substrate
- the substrate After the gas A is supplied to an arbitrary portion of the substrate and before the gas A is supplied to the arbitrary portion, the substrate is supplied so that the alternate supply number of the gases A and B is executed a predetermined number of times.
- a substrate processing apparatus provided with a control unit for controlling the rotation cycle or the gas supply time of the substrate.
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- a substrate processing apparatus that alternately supplies at least two types of gases A and B multiple times to form a desired film on the substrate
- a gas supply cycle T defined by the time between the flow of gas A and the next flow of gas A;
- the plate rotation cycle P is
- a substrate processing apparatus provided with a control unit for controlling the rotation cycle P or the gas supply cycle ⁇ so as to satisfy the following equation (1).
- a rotation mechanism for holding and rotating the substrate in the reaction chamber
- a controller configured to control the rotation mechanism and the gas supply system such that the supply cycle of the reaction gas and the rotation cycle of the substrate are not synchronized for a predetermined time or more when the reaction gas is periodically supplied into the reaction chamber.
- a substrate processing apparatus comprising:
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- a substrate processing apparatus that alternately supplies at least two types of gases A and B multiple times to form a desired film on the substrate
- the gas supply cycle which is defined by the time from the flow of gas A to the next flow of gas A, and the rotation cycle of the substrate are synchronized at least as long as the gas is alternately supplied a predetermined number of times.
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- At least two gases A and B are alternately supplied multiple times to form a desired film on the substrate A substrate processing apparatus
- a method of manufacturing a semiconductor device comprising the step of processing the substrate using a substrate processing apparatus having a control unit for controlling the rotation cycle or the gas supply time.
- a processing chamber for processing substrates for processing substrates
- a substrate rotating mechanism for rotating the substrate for rotating the substrate
- a gas supply unit that supplies gas to the substrate
- a substrate processing apparatus that alternately supplies at least two types of gases A and B multiple times to form a desired film on the substrate
- the gas supply cycle T which is defined by the time from the flow of the gas A to the next flow of the gas A, and the rotation cycle P of the substrate,
- a method of manufacturing a semiconductor device comprising a step of processing the substrate using a substrate processing apparatus having a control unit for controlling the rotation period P or the gas supply period T so as to satisfy the following equation (1). Is done.
- FIG. 1 is a view for explaining a gas supply state when a rotation cycle of a substrate to be processed is synchronized with a gas supply cycle.
- FIG. 2 is a view for explaining a gas supply state when the rotation cycle of the substrate to be processed and the gas supply cycle are not synchronized.
- FIG. 3A is a view showing a film thickness distribution when a substrate to be processed is not rotated.
- FIG. 3B is a diagram showing a film thickness distribution when the substrate to be processed is rotated and the rotation period of the substrate to be processed and the gas supply period are synchronized.
- FIG. 3C is a diagram showing a film thickness distribution when the substrate to be processed is rotated and the rotation period of the substrate to be processed is not synchronized with the gas supply period.
- FIG. 4 is a schematic longitudinal sectional view for explaining a vertical substrate processing furnace of the substrate processing apparatus according to one embodiment of the present invention.
- FIG. 5 is a schematic cross-sectional view for explaining a vertical substrate processing furnace of the substrate processing apparatus according to one embodiment of the present invention.
- FIG. 6 is a schematic perspective view for explaining a substrate processing apparatus main body according to one embodiment of the present invention.
- the rotation period P and the gas supply period T are finely adjusted so as to satisfy the following expression (1).
- DCS SiH CI, dichlorosilane
- NH ammonia
- SiN silicon nitride
- FIG. 4 is a schematic configuration diagram of a vertical substrate processing furnace according to the present embodiment.
- FIG. 5 shows a vertical section of the processing furnace, and
- FIG. 5 shows a vertical substrate processing furnace according to the present embodiment.
- FIG. 2 is a schematic configuration diagram of a furnace, showing a processing furnace portion in a cross section.
- a reaction tube 203 is provided inside a heater 207 as a heating means as a reaction container for processing a wafer 200 as a substrate, and the lower end opening of the reaction tube 203 is sealed with a seal cap 219 as a lid to provide an airtight member O.
- the heater 207, the reaction tube 203, and the seal cap 219 form at least a processing furnace 202, and the reaction tube 203 and the seal cap 219 form a reaction chamber 201.
- a boat 217 as a substrate holding means is erected on the seal cap 219 via a quartz cap 218, and the quartz cap 218 is a holder for holding the boat. Then, the boat 217 is inserted into the processing furnace 202.
- a plurality of wafers 200 to be batch-processed are loaded on the boat 217 in a horizontal posture in multiple stages in the tube axis direction.
- the heater 207 heats the wafer 200 inserted into the processing furnace 202 to a predetermined temperature.
- two gas supply pipes 232a and 232b are provided to the processing furnace 202 as supply pipes for supplying a plurality of kinds, here two kinds of gases.
- a first mass flow controller 241a as a flow rate control means and a first valve 243a as an on-off valve
- the reaction gas is supplied to the processing furnace 202 via a second gas supply pipe 232b, a second mass flow controller 241b as flow control means, a second valve 243b as an on-off valve, and a gas reservoir.
- the reaction gas is supplied to the processing furnace 202 via a gas supply unit 249, which will be described later, via a 247 and a third valve 243c which is an opening / closing valve.
- the processing furnace 202 is connected to a vacuum pump 246 as exhaust means via a fourth knob 243d by a gas exhaust pipe 231 as an exhaust pipe for exhausting gas, and is evacuated to a vacuum.
- the fourth valve 243d is an opening / closing valve that can open and close the valve to evacuate the processing furnace 202 and stop the evacuation, and can further adjust the valve opening to adjust the pressure.
- the gas in the inner wall above the lower part of the reaction tube 203 along the loading direction of the wafer 200 A buffer chamber 237 that is a dispersion space is provided, and a first gas supply hole 248a that is a supply hole for supplying gas is provided at an end of a wall of the buffer chamber 237 adjacent to the wafer 200. .
- the first gas supply hole 248a opens toward the center of the reaction tube 203.
- the first gas supply holes 248a have the same opening area from the lower part to the upper part, and are provided at the same opening pitch.
- a nozzle 233 is also provided in the loading direction of the wafer 200 over the upper portion of the lower portion of the reaction tube 203. It is arranged along.
- the nozzle 233 is provided with a second gas supply hole 248b which is a supply hole for supplying a plurality of gases.
- the opening area of the second gas supply hole 248b may be the same from the upstream side to the downstream side and the same opening pitch, When the differential pressure is large, it is preferable that the upstream force also increases the opening area toward the downstream side and the opening pitch is reduced.
- the opening area and the opening pitch of the second gas supply holes 248b is adjusted.
- the difference is that the gas with the same flow rate is ejected.
- the gas that also ejects the force of the second gas supply holes 248b is ejected into the buffer chamber 237 and introduced into the buffer chamber 237, so that the gas flow velocity difference is made uniform.
- the gas ejected from each of the second gas supply holes 248b is supplied to the processing furnace from the first gas supply hole 248a after the particle velocity of each gas is reduced in the buffer chamber 237. It gushes at 202. During this time, the gas ejected from each second gas supply hole 248b When the gas was ejected from the first gas supply hole 248a, a gas having a uniform flow rate and flow rate could be obtained.
- a first rod-shaped electrode 269 as a first electrode and a second rod-shaped electrode 270 as a second electrode having an elongated structure are provided in the buffer chamber 237 to protect the electrodes from the upper part to the lower part.
- the first rod-shaped electrode 269 or the second rod-shaped electrode 270 is protected by an electrode protection tube 275 which is a tube, and one of the first rod-shaped electrode 269 and the second rod-shaped electrode 270 is connected to a high-frequency power source 273 via a matching device 272, and the other is connected to the other.
- plasma is generated in the plasma generation region 224 between the first rod-shaped electrode 269 and the second rod-shaped electrode 270.
- the electrode protection tube 275 has a structure in which each of the first rod-shaped electrode 269 and the second rod-shaped electrode 270 can be inserted into the buffer chamber 237 while being isolated from the atmosphere of the buffer chamber 237.
- the inside of the electrode protection tube 275 has the same atmosphere as the outside air (atmosphere)
- the first rod-shaped electrode 269 and the second rod-shaped electrode 270 inserted into the electrode protection tube 275 respectively heat the heater 207. And it is realistic. Therefore, the inside of the electrode protection tube 275 is filled or purged with an inert gas such as nitrogen to suppress the oxygen concentration sufficiently low to prevent the first rod-shaped electrode 269 or the second rod-shaped electrode 270 from oxidizing.
- Gas purge mechanism is provided for
- a gas supply unit 249 is provided on an inner wall that is about 120 ° around the inner circumference of the reaction tube 203 from the position of the first gas supply hole 248a.
- the gas supply unit 249 is a supply unit that shares the buffer chamber 237 and the gas supply type when a plurality of types of gases are alternately supplied to the wafer 200 one by one in the film formation by the ALD method.
- the gas supply unit 249 also has a third gas supply hole 248c, which is a supply hole for supplying gas at the same pitch, at a position adjacent to the wafer. Tube 232b is connected.
- the opening area of the third gas supply hole 248c is preferably the same from the upstream side to the downstream side with the same opening pitch and the same opening pitch. If the pressure is high, it is better to increase the opening area or decrease the opening pitch by moving from upstream to downstream.
- a boat 217 for mounting a plurality of wafers 200 at the same interval in multiple stages is provided.
- the boat 217 is provided by a boat elevator mechanism not shown in the drawing. You can get in and out of 203.
- a boat rotating mechanism 267 is provided as rotating means for rotating the boat 217, and the boat held by the quartz cap 218 is rotated by rotating the boat rotating mechanism 267. It rotates 217.
- the controller 121 which is a control means, includes first and second mass flow controllers 241a and 241b, first and fourth knobs 243a, 243b, 243c and 243d, a heater 207, a vacuum pump 246, and a boat. It is connected to a rotating mechanism 267, a boat elevating mechanism not shown in the figure, a high-frequency power supply 273, and a matching device 272, and adjusts the flow rates of the first and second mass flow controllers 241a and 241b, and the first and third knobs 243a.
- a wafer 200 on which a film is to be formed is loaded into a boat 217 and carried into a processing furnace 202. After loading, perform the following three steps in order.
- DCS is stored in the gas reservoir 247 in advance with a desired amount of 243b open and 243c closed (the raw material is released from the gas reservoir 247 in advance in the first cycle and in the second and subsequent cycles. It is preferable to store the raw material in the gas reservoir 247 at a time other than the event without wasting time.)
- the gas is flowed in advance. This is because the DCS accumulated in the gas reservoir 247 at the next event flows into the reaction tube 203 at a stretch due to the pressure difference between the gas reservoir 247 and the reaction tube 203, and further flows from the gas supply port 248a of the buffer chamber 237 to the buffer. Backflow into room 237 This is to prevent that.
- the DCS stored in the gas reservoir 247 passes through the buffer chamber (gas supply unit) 249 to the buffer chamber (gas supply unit) 249.
- the gas is supplied onto a wafer 200 as a substrate to be processed from a gas supply port 248c provided for each substrate.
- the pressure in the furnace (such as a valve 243d such as a butterfly valve provided in the middle of the exhaust pipe) should be set so as to increase the pressure so that the DCS partial pressure increases. At this time, it is preferable to keep the inert gas such as N flowing from the buffer chamber 237.
- the wafer temperature at this time is 300-600 ° C.
- the valve 243c is closed to stop the supply of DCS from the gas reservoir 247. After the valve 243c is closed, the time until the next supply starts can be used as the DCS storage time (that is, the DCS gas can be stored in the gas storage 247 during another event. You don't need to take extra time as a time-only event!).
- the gas is supplied so as to be uniform, and is supplied onto a wafer 200 as a substrate to be processed through gas supply holes 248b provided in the buffer chamber 237 at intervals of one substrate.
- NH can be similarly supplied onto a plurality of wafers 200 as substrates to be processed.
- the temperature of the heater 207 at this time is set so that the temperature of the wafer 200 becomes 300 to 600 ° C. Since NH has a high reaction temperature, it does not react at the above-mentioned wafer temperature, so it is excited by plasma.
- the active species are forced to flow, so that the wafer temperature can be maintained at the set low temperature range.
- the exhaust is performed by the air means 243.
- it is also effective to combine the extrusion with an inert gas with the vacuum bow.
- the gas is adsorbed on the surface of the underlying film.
- the amount of gas adsorbed is proportional to the gas pressure and the gas exposure time. Therefore, in order to adsorb a desired constant amount of gas in a short time, it is necessary to increase the gas pressure in a short time.
- the DCS stored in the gas reservoir 247 is instantaneously supplied after the valve 243d is closed, so that the DCS pressure in the reaction tube 203 can be rapidly increased.
- a desired constant amount of gas can be instantaneously adsorbed.
- NH gas which is a necessary step in the ALD method, is plasma-excited to supply NH gas as active species and to supply the processing furnace 2
- the supplied DCS can effectively react only with NH adsorbed on the wafer 200.
- a cassette stage 105 is provided as a holder transfer member for transferring the cassette 100 as a substrate storage container to and from an external transfer device (not shown).
- a cassette elevator 115 as a lifting / lowering means is provided on the rear side of 105, and a cassette transfer machine 114 as a transport means is attached to the cassette elevator 115.
- a cassette shelf 109 as a mounting means for the cassette 100 is provided, and a spare cassette shelf 110 is provided above the cassette stage 105.
- a clean unit 118 is provided above the spare cassette shelf 110 so that clean air can flow through the inside of the housing 101.
- a processing furnace 202 is provided above the rear part of the housing 101, and a boat 217 as a substrate holding means for holding the wafers 200 as substrates in multiple stages in a horizontal posture is provided below the processing furnace 202.
- a boat elevator 121 is provided as elevating means for elevating and lowering the processing furnace 202.
- a seal cap 219 as a lid is attached to a tip of an elevating member 122 attached to the boat elevator 121, and the boat 217 is supported vertically.
- a transfer elevator 113 as a lifting means is provided between the boat elevator 121 and the cassette shelf 109, and a wafer transfer machine 112 as a transfer means is attached to the transfer elevator 113.
- a furnace mouth shirt 116 is provided as a shielding member having an opening / closing mechanism and closing the lower surface of the processing furnace 202!
- the cassette 100 loaded with the wafers 200 is loaded into the cassette stage 105 with the force of an external transfer device (not shown) in an upward position, and rotated 90 ° by the force setting stage 105 so that the wafers 200 are in the horizontal position. Let me do. Further, the cassette 100 is conveyed from the cassette stage 105 to the cassette shelf 109 or the spare cassette shelf 110 by the cooperation of the raising / lowering operation, the traversing operation of the cassette elevator 115, the forward / backward operation of the cassette transfer device 114, and the rotation operation.
- the cassette shelf 109 has a transfer shelf 123 in which a cassette 100 to be transferred by the wafer transfer machine 112 is stored.
- the cassette 100 to which the wafer 200 is transferred is a cassette elevator 115, a cassette transfer. It is transferred to the transfer shelf 123 by the loading machine 114.
- the boat 217 When a predetermined number of wafers 200 are transferred to the boat 217, the boat 217 is inserted into the processing furnace 202 by the boat elevator 121, and the processing furnace 202 is hermetically closed by the seal cap 219. In the hermetically closed processing furnace 202, the wafer 200 is heated and the processing gas is supplied into the processing furnace 202 to process the wafer 200.
- the wafer 200 is transferred from the boat 217 to the cassette 100 of the transfer shelf 123 by the reverse procedure of the above-described operation, and the cassette 100 is transferred by the cassette transfer machine 114.
- the sheet is transferred from the shelf 123 to the cassette stage 105, and is carried out of the housing 101 by an external transfer device (not shown).
- the furnace locker 116 closes the lower surface of the processing furnace 202 when the boat 217 is in a descending state, thereby preventing outside air from being caught in the processing furnace 202.
- the transfer operation of the cassette transfer device 114 and the like is controlled by the transfer control means 124.
- the present invention it is possible to prevent or suppress the synchronization of the reactant gas supply cycle and the rotation cycle of the substrate, so that the thickness of the formed film is uniform in the substrate surface.
- a substrate processing apparatus and a method for manufacturing a semiconductor device which can prevent deterioration in performance.
- the present invention can be particularly suitably applied to a substrate processing apparatus for processing a semiconductor substrate such as a semiconductor Si wafer using a gas and a method for manufacturing a semiconductor device.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Inorganic Chemistry (AREA)
- Plasma & Fusion (AREA)
- Chemical Vapour Deposition (AREA)
- Formation Of Insulating Films (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006510994A JP4361932B2 (ja) | 2004-03-12 | 2005-03-11 | 基板処理装置および半導体装置の製造方法 |
US10/592,348 US7950348B2 (en) | 2004-03-12 | 2005-03-11 | Substrate processing apparatus and semiconductor device producing method |
US14/530,144 US20150050818A1 (en) | 2004-03-12 | 2014-10-31 | Substrate processing apparatus and semiconductor device producing method |
Applications Claiming Priority (2)
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JP2004-070136 | 2004-03-12 | ||
JP2004070136 | 2004-03-12 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
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US10/592,348 A-371-Of-International US7950348B2 (en) | 2004-03-12 | 2005-03-11 | Substrate processing apparatus and semiconductor device producing method |
US13/104,626 Division US8901011B2 (en) | 2004-03-12 | 2011-05-10 | Substrate processing apparatus and semiconductor device producing method |
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WO2005088692A1 true WO2005088692A1 (ja) | 2005-09-22 |
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PCT/JP2005/004299 WO2005088692A1 (ja) | 2004-03-12 | 2005-03-11 | 基板処理装置および半導体装置の製造方法 |
Country Status (6)
Country | Link |
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US (3) | US7950348B2 (ja) |
JP (2) | JP4361932B2 (ja) |
KR (1) | KR100674467B1 (ja) |
CN (1) | CN100452315C (ja) |
TW (1) | TWI334450B (ja) |
WO (1) | WO2005088692A1 (ja) |
Cited By (9)
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JP2006009152A (ja) * | 2004-06-25 | 2006-01-12 | Tokyo Electron Ltd | 高速原子層堆積装置及び使用方法 |
JP2008053326A (ja) * | 2006-08-23 | 2008-03-06 | Elpida Memory Inc | 半導体装置の製造方法 |
JP2008258268A (ja) * | 2007-04-02 | 2008-10-23 | Hitachi Kokusai Electric Inc | 基板処理装置 |
JP2011241460A (ja) * | 2010-05-20 | 2011-12-01 | Tokyo Electron Ltd | 基板処理装置、その制御装置およびその制御方法 |
US8419855B2 (en) | 2008-09-29 | 2013-04-16 | Applied Materials, Inc. | Substrate processing chamber with off-center gas delivery funnel |
JP2015079967A (ja) * | 2010-03-19 | 2015-04-23 | 東京エレクトロン株式会社 | 成膜装置、成膜方法、回転数の最適化方法及び記憶媒体 |
US9200364B2 (en) | 2010-03-19 | 2015-12-01 | Tokyo Electron Limited | Film forming apparatus, film forming method, method for optimizing rotational speed, and storage medium |
WO2019082937A1 (ja) * | 2017-10-27 | 2019-05-02 | 東京エレクトロン株式会社 | 成膜装置及び成膜方法 |
JP7534458B2 (ja) | 2022-03-24 | 2024-08-14 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法およびプログラム |
Families Citing this family (9)
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TWI334450B (en) * | 2004-03-12 | 2010-12-11 | Hitachi Int Electric Inc | Wafer treatment device and the manufacturing method of semiconductor device |
WO2006087893A1 (ja) * | 2005-02-17 | 2006-08-24 | Hitachi Kokusai Electric Inc. | 基板処理方法および基板処理装置 |
JP4828599B2 (ja) | 2006-05-01 | 2011-11-30 | 株式会社日立国際電気 | 基板処理装置 |
JP5805461B2 (ja) * | 2010-10-29 | 2015-11-04 | 株式会社日立国際電気 | 基板処理装置および半導体装置の製造方法 |
JP5794194B2 (ja) * | 2012-04-19 | 2015-10-14 | 東京エレクトロン株式会社 | 基板処理装置 |
JP6027490B2 (ja) * | 2013-05-13 | 2016-11-16 | 東京エレクトロン株式会社 | ガスを供給する方法、及びプラズマ処理装置 |
KR102264257B1 (ko) | 2014-12-30 | 2021-06-14 | 삼성전자주식회사 | 막 형성 방법 및 이를 이용한 반도체 장치 제조 방법 |
CN106048560A (zh) * | 2016-06-24 | 2016-10-26 | 浙江晶科能源有限公司 | 一种硅片ald镀膜方法和装置 |
CN110565072B (zh) * | 2018-06-05 | 2023-06-09 | 长鑫存储技术有限公司 | 一种原子层沉积方法 |
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KR100458982B1 (ko) * | 2000-08-09 | 2004-12-03 | 주성엔지니어링(주) | 회전형 가스분사기를 가지는 반도체소자 제조장치 및 이를이용한 박막증착방법 |
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2005
- 2005-03-10 TW TW094107285A patent/TWI334450B/zh active
- 2005-03-11 CN CNB200580000901XA patent/CN100452315C/zh active Active
- 2005-03-11 JP JP2006510994A patent/JP4361932B2/ja active Active
- 2005-03-11 WO PCT/JP2005/004299 patent/WO2005088692A1/ja active Application Filing
- 2005-03-11 KR KR1020067005079A patent/KR100674467B1/ko active IP Right Grant
- 2005-03-11 US US10/592,348 patent/US7950348B2/en active Active
-
2009
- 2009-07-10 JP JP2009163570A patent/JP5027850B2/ja active Active
-
2011
- 2011-05-10 US US13/104,626 patent/US8901011B2/en active Active
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2014
- 2014-10-31 US US14/530,144 patent/US20150050818A1/en not_active Abandoned
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JP2003502878A (ja) * | 1999-06-24 | 2003-01-21 | ナーハ ガジル、プラサード | 原子層化学気相成長装置 |
JP2003045864A (ja) * | 2001-08-02 | 2003-02-14 | Hitachi Kokusai Electric Inc | 基板処理装置 |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006009152A (ja) * | 2004-06-25 | 2006-01-12 | Tokyo Electron Ltd | 高速原子層堆積装置及び使用方法 |
JP4713241B2 (ja) * | 2004-06-25 | 2011-06-29 | 東京エレクトロン株式会社 | 高速原子層堆積装置及び使用方法 |
JP2008053326A (ja) * | 2006-08-23 | 2008-03-06 | Elpida Memory Inc | 半導体装置の製造方法 |
US7576016B2 (en) | 2006-08-23 | 2009-08-18 | Elpida Memory, Inc. | Process for manufacturing semiconductor device |
JP2008258268A (ja) * | 2007-04-02 | 2008-10-23 | Hitachi Kokusai Electric Inc | 基板処理装置 |
US8419855B2 (en) | 2008-09-29 | 2013-04-16 | Applied Materials, Inc. | Substrate processing chamber with off-center gas delivery funnel |
US8425977B2 (en) | 2008-09-29 | 2013-04-23 | Applied Materials, Inc. | Substrate processing chamber with off-center gas delivery funnel |
JP2015079967A (ja) * | 2010-03-19 | 2015-04-23 | 東京エレクトロン株式会社 | 成膜装置、成膜方法、回転数の最適化方法及び記憶媒体 |
US9200364B2 (en) | 2010-03-19 | 2015-12-01 | Tokyo Electron Limited | Film forming apparatus, film forming method, method for optimizing rotational speed, and storage medium |
JP2011241460A (ja) * | 2010-05-20 | 2011-12-01 | Tokyo Electron Ltd | 基板処理装置、その制御装置およびその制御方法 |
KR101508948B1 (ko) * | 2010-05-20 | 2015-04-07 | 도쿄엘렉트론가부시키가이샤 | 기판 처리 장치, 그의 제어 장치 및 그의 제어 방법 |
US9136148B2 (en) | 2010-05-20 | 2015-09-15 | Tokyo Electron Limited | Substrate processing apparatus, control device thereof, and control method thereof |
WO2019082937A1 (ja) * | 2017-10-27 | 2019-05-02 | 東京エレクトロン株式会社 | 成膜装置及び成膜方法 |
JP2019083231A (ja) * | 2017-10-27 | 2019-05-30 | 東京エレクトロン株式会社 | 成膜装置及び成膜方法 |
JP7534458B2 (ja) | 2022-03-24 | 2024-08-14 | 株式会社Kokusai Electric | 基板処理装置、半導体装置の製造方法およびプログラム |
Also Published As
Publication number | Publication date |
---|---|
US20110212626A1 (en) | 2011-09-01 |
TWI334450B (en) | 2010-12-11 |
US8901011B2 (en) | 2014-12-02 |
KR20060095955A (ko) | 2006-09-05 |
US20150050818A1 (en) | 2015-02-19 |
KR100674467B1 (ko) | 2007-01-25 |
TW200600606A (en) | 2006-01-01 |
JP5027850B2 (ja) | 2012-09-19 |
US7950348B2 (en) | 2011-05-31 |
JP4361932B2 (ja) | 2009-11-11 |
CN100452315C (zh) | 2009-01-14 |
US20080153309A1 (en) | 2008-06-26 |
JPWO2005088692A1 (ja) | 2008-01-31 |
JP2009239304A (ja) | 2009-10-15 |
CN1842899A (zh) | 2006-10-04 |
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