WO2001035453A1 - Dispositif de traitement thermique - Google Patents
Dispositif de traitement thermique Download PDFInfo
- Publication number
- WO2001035453A1 WO2001035453A1 PCT/JP2000/007886 JP0007886W WO0135453A1 WO 2001035453 A1 WO2001035453 A1 WO 2001035453A1 JP 0007886 W JP0007886 W JP 0007886W WO 0135453 A1 WO0135453 A1 WO 0135453A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- pressure
- exhaust system
- exhaust
- processing furnace
- valve
- Prior art date
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 56
- 239000007789 gas Substances 0.000 abstract description 29
- 239000011261 inert gas Substances 0.000 abstract description 24
- 238000011282 treatment Methods 0.000 description 31
- 230000003647 oxidation Effects 0.000 description 29
- 238000007254 oxidation reaction Methods 0.000 description 29
- 235000012431 wafers Nutrition 0.000 description 27
- 239000004065 semiconductor Substances 0.000 description 23
- 238000002485 combustion reaction Methods 0.000 description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000000034 method Methods 0.000 description 12
- 238000006243 chemical reaction Methods 0.000 description 11
- 238000010926 purge Methods 0.000 description 10
- 230000006837 decompression Effects 0.000 description 9
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 4
- 229910001873 dinitrogen Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 4
- 239000004810 polytetrafluoroethylene Substances 0.000 description 4
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 229910001882 dioxygen Inorganic materials 0.000 description 3
- 230000001590 oxidative effect Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- -1 for example Substances 0.000 description 2
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 2
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 239000001272 nitrous oxide Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 208000037998 chronic venous disease Diseases 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000006200 vaporizer Substances 0.000 description 1
- 238000009279 wet oxidation reaction Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
-
- 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
-
- 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
- C23C16/4412—Details relating to the exhausts, e.g. pumps, filters, scrubbers, particle traps
Definitions
- the present invention relates to a heat treatment apparatus. Background technology
- a semiconductor wafer is oxidized (wet oxidation) by bringing the semiconductor wafer into contact with steam at a predetermined processing temperature in a processing furnace.
- a reaction in which hydrogen gas and oxygen gas are reacted (combusted) to generate steam is performed.
- the heat treatment apparatus there are a normal pressure type equipped with a normal pressure exhaust system and a pressure reducing type capable of providing a normal pressure exhaust system and a reduced pressure exhaust system.
- Conventional atmospheric pressure type heat treatment equipment has an exhaust pressure control valve and a differential pressure type that use a butterfly valve type or a stepping motor and a spring to adjust the valve opening to a normal pressure exhaust system that exhausts the inside of the processing furnace at a predetermined exhaust pressure.
- the pressure sensor was provided to control the exhaust pressure.
- the exhaust system of the processing furnace is branched into a normal-pressure exhaust system and a reduced-pressure exhaust system, and a switching valve is provided at a branch portion.
- the exhaust pressure can be controlled by providing a troll valve and a pressure sensor, and the pressure can be controlled by providing a combination valve and a pressure sensor in the decompression exhaust system.
- the present invention has been made in consideration of the above circumstances, and enables stable control without requiring introduction of air or inert gas, and simplifies the structure of an exhaust system, thereby reducing costs.
- An object of the present invention is to provide a heat treatment apparatus that can be achieved.
- Gas supply means for supplying a processing gas into the processing furnace
- Heating means for setting the inside of the processing furnace to a predetermined processing temperature
- a normal-pressure exhaust system for exhausting the inside of the processing furnace at a predetermined exhaust pressure near the atmospheric pressure, an open / close adjustable and pressure-adjustable valve provided in the ordinary pressure exhaust system, A pressure sensor for detecting exhaust pressure,
- control unit for controlling the pulp based on the pressure detected by the pressure sensor.
- the pressure sensor may be a differential pressure type or an absolute pressure type. In the latter case, stable control is possible without being affected by changes in the atmospheric pressure, and an oxide film having a uniform thickness can be formed at any time.
- a processing furnace Gas supply means for supplying a processing gas into the processing furnace,
- Heating means for setting the inside of the processing furnace to a predetermined processing temperature
- a normal-pressure exhaust system for exhausting the inside of the processing furnace at a predetermined exhaust pressure near the atmospheric pressure, a first valve that is provided in the normal-pressure exhaust system and that can be opened and closed and whose pressure is adjustable, A first pressure sensor for detecting the exhaust pressure of the system,
- a reduced-pressure exhaust system for exhausting the inside of the processing furnace at a predetermined exhaust pressure lower than the atmospheric pressure, a second valve that is provided in the reduced-pressure exhaust system and that can be opened and closed and that can adjust the pressure, and an exhaust of the reduced-pressure exhaust system
- a second pressure sensor for detecting pressure
- a control unit that controls the first valve based on the pressure detected by the first pressure sensor and controls the second valve based on the pressure detected by the second pressure sensor.
- the first pressure sensor may be a differential pressure type or an absolute pressure type.
- the second pressure sensor may be a differential pressure type or an absolute pressure type. If an absolute pressure type pressure sensor is used, stable control can be performed without being affected by changes in atmospheric pressure, and an oxide film having a uniform film thickness can be formed at any time. ⁇
- Gas supply means for supplying a processing gas into the processing furnace
- Heating means for setting the inside of the processing furnace to a predetermined processing temperature
- a normal-pressure exhaust system for exhausting the inside of the processing furnace at a predetermined exhaust pressure near the atmospheric pressure, an open / close adjustable and pressure-adjustable valve provided in the ordinary pressure exhaust system, An absolute pressure type pressure sensor for detecting
- a differential pressure type pressure sensor that detects the exhaust pressure of the normal pressure exhaust system by a differential pressure from the atmospheric pressure
- the exhaust pressure of the normal exhaust system is set based on the pressure detected by the differential pressure sensor.
- a control unit that controls the valve so as to be a differential pressure, and corrects the set differential pressure based on a detection pressure of the absolute pressure type pressure sensor;
- FIG. 1 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a first embodiment of the present invention.
- FIG. 2 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a second embodiment of the present invention.
- FIG. 3 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a third embodiment of the present invention.
- FIG. 1 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a first embodiment of the present invention.
- the oxidation treatment apparatus (heat treatment apparatus) of the present embodiment is configured as a normal pressure type.
- a vertical, batch-type processing furnace 1 contains a semiconductor wafer W to be processed, is supplied with steam as a processing gas, and is semiconductive at a high temperature of, for example, about 850 ° C.
- the body wafer W is heat-treated.
- the processing furnace 1 is provided with a vertically long cylindrical heat-resistant, for example, quartz-made reaction tube (processing vessel) 2 having an upper end closed and a lower end opened.
- the reaction tube 2 constitutes a highly airtight processing furnace 1 by closing the lower end opening as the furnace B in an airtight manner with a lid 3.
- a wafer support 4 made of, for example, quartz, which is a substrate support for supporting a large number of, for example, about 150, semiconductor wafers W in a horizontal state in multiple stages at intervals in the vertical direction, It is placed via the heat retention tube 5.
- the lid 3 is configured to open (unload), unload (unload), and open / close the furnace port of the wafer boat 4 into the processing furnace 1 by a lifting mechanism (not shown).
- a predetermined temperature for example, 300 to 10
- a heater 6 that can be controlled to be heated to 00 ° C. is provided.
- gas introduction tubes 7 are provided at the lower side of the reaction tube 2.
- the combustion device 8 can supply steam at a very small flow rate, for example, about 0.4 to 1 liter per minute, for example, by reducing the diameter of the combustion nozzle or improving the shape of the combustion nozzle. It is preferable that it has been 3 liters per minute or more. Further, the combustion device 8 is provided with an inert gas supply unit 9 for supplying an inert gas, for example, nitrogen gas N 2 , for diluting steam.
- an inert gas supply unit 9 for supplying an inert gas, for example, nitrogen gas N 2 , for diluting steam.
- a gas supply source for supplying other processing gas, such as NO, N 2 O, N 2 O, hydrogen chloride HC 1 or an inert gas, such as N 2 is provided in the other gas introduction pipe section. However, each is connected (not shown).
- An exhaust pipe section 10 for exhausting the inside of the reaction tube 2 is provided on a lower side wall of the reaction tube 2.
- a normal pressure exhaust system 12 is connected to the exhaust pipe section 10 via an exhaust pipe 11 extending to a position lower than the processing furnace 1.
- the normal pressure exhaust system 12 extends upward from a connection portion with the exhaust pipe 11 (at a lower position than the processing furnace 1), and is provided with a factory exhaust system equipped with an abatement device and an exhaust blower not shown. It is connected to the.
- the reaction tube 2, Note c and summer as may be exhausted at a predetermined exhaust pressure, atmospheric pressure exhaust system may extend downwardly from the connecting portion.
- the normal pressure exhaust system 12 is provided with a capacitor 13 for cooling and condensing water vapor in the exhaust gas. Drain water generated by condensation of water vapor by the condenser 13 is drained through a drain pipe 14 extending downward from a connection with the exhaust pipe 11, a trap 15 and a ball valve 16. Has become.
- the exhaust pipe 11 and the normal-pressure exhaust system 12 are formed of a corrosion-resistant material, for example, quartz, stainless steel, or preferably PTF (polytetrafluoroethylene, trade name: Teflon).
- a pressure sensor 17 and a combination valve 18 Downstream (above) the condenser 13 of the normal-pressure exhaust system 12, a pressure sensor 17 and a combination valve 18 whose opening and closing can be adjusted and whose pressure can be adjusted are provided in this order.
- This combination valve 18, for example, converts electrical signals to air The pressure is converted to pressure and the position of a valve (not shown) is controlled. Further, the combination valve 18 has an O-ring (not shown) at the seating portion of the valve body so that the valve can be shut off.
- the combination valve 18 is made of a material having corrosion resistance, for example, PTFE.
- a differential pressure type or an absolute pressure type can be used as the pressure sensor 17.
- C a range of an atmospheric pressure (10 13 .25 hpa) ⁇ 1 330 Pa Can be used.
- the absolute pressure type pressure sensor for example, a sensor capable of detecting in a range of 800 hPa to 110 hPa can be used.
- the combination valve 18 is controlled by a controller (controller) 19 based on the pressure detected by the pressure sensor 17. Thereby, the heat treatment can be performed by controlling the exhaust pressure to a slight differential pressure of, for example, about 150 Pa to 110 Pa with respect to the atmospheric pressure.
- a ball valve 20 is further provided downstream of the combination valve 18 of the normal pressure exhaust system 12. This makes it possible to cope with, for example, a case where the pulling of the factory exhaust system is strong (for example, a case of about -lOOOPa).
- the atmospheric pressure type oxidation processing apparatus having the above configuration is an apparatus for supplying a processing gas into the processing furnace 1 for accommodating the semiconductor wafer W and heat-treating the semiconductor wafer W at a predetermined processing temperature.
- a pressure sensor 17 of a differential pressure type or an absolute pressure type for detecting the exhaust pressure, and a control unit 19 for controlling the combination valve 18 based on the pressure detected by the pressure sensor 17 are provided. For this reason, unlike conventional atmospheric pressure heat treatment equipment, stable control is possible without requiring introduction of air or inert gas.
- the structure of the exhaust system is simplified, the running cost of an inert gas such as N 2 can be eliminated, and the cost of the entire apparatus can be reduced.
- an absolute pressure type pressure sensor 17 if an absolute pressure type pressure sensor 17 is used, stable absolute pressure control near the atmospheric pressure can be performed without being affected by fluctuations in the atmospheric pressure due to weather conditions. This makes it possible to form an oxide film having a uniform thickness at any time.
- introduction of air into the atmosphere before and after the combination valve of the normal pressure exhaust system It is not necessary to introduce an inert gas, but it may be configured to introduce air or an inert gas.
- FIG. 2 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a second embodiment of the present invention.
- the oxidation treatment apparatus (heat treatment apparatus) of the present embodiment is configured as a type capable of decompression treatment.
- the same parts as those in the above embodiment are denoted by the same reference numerals, and description thereof will be omitted.
- the oxidation treatment apparatus of the present embodiment includes a normal-pressure exhaust system 12 and a reduced-pressure exhaust system 21.
- a normal pressure exhaust system 12 is connected to an exhaust pipe section 10 of the reaction tube 2 constituting the processing furnace 1 via an exhaust pipe 11.
- a pressure reducing exhaust system 21 is branched and connected.
- the normal-pressure exhaust system 12 and the reduced-pressure exhaust system 21 downstream of the branch are provided with combination valves 18 A and 18 B capable of opening / closing adjustment and pressure adjustment, respectively.
- the vacuum evacuation system 21 includes a vacuum pump (vacuum pump) 22 that can reduce the pressure in the processing furnace 1 to, for example, about -1 Pa at the maximum.
- a vacuum pump vacuum pump
- a pneumatically controlled switching valve 23, 24 is provided to switch to the exhaust path during operation.
- the exhaust of the heat treatment system is configured so that water (drain water) is removed by a trap 25. In addition, these exhausts are to be treated by abatement equipment (not shown).
- the evacuation system 21 is made of a material having corrosion resistance, for example, stainless steel, preferably PTFE.
- the evacuation pipe 11 is provided with a pressure sensor for detecting the evacuation pressure during the evacuation process (when evacuation is performed).
- 26 and a monitor and control pressure sensor 27 are respectively provided via pneumatically controlled valves 29, 30.
- the pressure sensor 26 is, for example, capable of detecting in a range of 0 to 133 KPa.
- the pressure sensor 27 can detect in the range of, for example, 0 to 1.333 KPa.
- absolute pressure sensors can be used.
- a pressure switch normal pressure return switch into which the switch enters when the exhaust pressure becomes a normal pressure or a positive pressure is provided to the exhaust pipe 11 via an air pressure control type valve 32.
- a pressure sensor 17 for detecting the exhaust pressure at the time of normal-pressure processing is provided with a pneumatic control type. It is provided via a valve 33.
- the valve 33 opens during normal pressure processing and closes during pressure reduction processing to prevent damage to the pressure sensor 17.
- a bypass pipe 34 for bypassing the combination valve 18 A and the ball valve 20 is connected to the normal pressure exhaust system 12.
- the bypass pipe 34 is provided with a bypass valve 35 and a check valve 36 which are normally closed.
- the bypass valve 35 and the check valve 36 are designed to open in an emergency, for example, when a positive pressure suddenly occurs during the pressure reduction process or when a power failure occurs.
- the combination valves 18 A, 18 B provided in the normal pressure exhaust system 12 and the reduced pressure exhaust system 21, respectively, are based on the detection pressures of the pressure sensors 17, 26, 27 based on: It is controlled by a common control unit (controller) 37. Specifically, the control unit 37 opens the combination valve 18 A of the normal-pressure exhaust system 12 during normal-pressure processing and controls this based on the detection pressure of the pressure sensor 17 for normal-pressure processing. At the same time, during the decompression process, the combination valve 18B of the decompression exhaust system 21 is opened, and this is controlled based on the detected pressure of the pressure sensor 26 or 27 for the decompression process. In other words, two systems can be controlled.
- the oxidation treatment apparatus having the above configuration has a leak-tight structure capable of high-pressure exhaustion.
- each connection part of the exhaust system of the processing furnace 1 is provided with a sealing means, for example, an O-ring.
- the heat treatment device is controlled by a control device (not shown) to which a program receiver of the desired heat treatment method has been input in advance.
- the combustion device 8, the heater unit 6, the control units 37 of the combination valves 18A and 18B, etc. Is controlled so that a desired heat treatment method is automatically performed.
- a pneumatically controlled valve 38 is provided upstream of the trap 15 of the drain pipe 14. Next, the operation (heat treatment method) of the oxidation treatment apparatus will be described.
- the inside of the processing furnace 1 is opened to the atmosphere, and the heating is controlled in advance by a heater 6 to a predetermined temperature, for example, 300 ° C.
- a wafer boat 4 holding a large number of semiconductor wafers W is loaded into such a processing furnace 1, and the furnace port of the processing furnace 1 is sealed with a lid 3. Is done.
- the pressure inside the processing furnace 1 is reduced by evacuation by the vacuum evacuation system 21.
- This low pressure or evacuation preferably includes a cycle purge step.
- an inert gas such as N 2 is supplied into the processing furnace 1 so that a natural oxide film is not formed on the surface of the semiconductor wafer W.
- the cycle purge is performed by alternately repeating supply and stop of an inert gas such as N 2 while evacuating the inside of the processing furnace 1.
- the exhaust system is switched to the reduced pressure exhaust system 20 by the combination valve 18 B, and the pressure (pressure in the pipe 11-pressure in the furnace 1) is detected by the pressure sensor 26 while the vacuum pump 22 is operating.
- the pressure inside the processing furnace 1 is reduced and evacuated to a predetermined pressure, for example, about 11 Pa by controlling the combination valve 18 B while the pressure is detected.
- an inert gas controlled at a predetermined flow rate, for example, N 2 is intermittently supplied by repeatedly opening and closing an inert gas supply valve (not shown).
- this cycle purge is performed, and the pressure in the processing furnace 1 is rapidly reduced, and the processing furnace 1 can be sufficiently replaced with the inert gas. That is, this cycle purge enables rapid pressure reduction (shortening of the time to reach vacuum) and replacement.
- the inside of the processing furnace 1 is heated up to a predetermined processing temperature, for example, 850 ° C. through the control of the heater 6.
- a predetermined processing temperature for example, 850 ° C.
- the inside of the processing furnace 1 has a slight differential pressure, for example, about 150 Pa to --100 Pa for atmospheric pressure. Is controlled.
- a recovery process (a process for stabilizing the temperature of the semiconductor wafer) is performed, and then a desired heat treatment, for example, HC 1 oxidation is performed.
- This heat treatment is an oxygen gas 0 2 and hydrogen gas H 2 is burned by supplying the combustion device 8, the steam generated in the combustion device 8 into the processing furnace 1 together with hydrogen chloride gas HC 1 and inert gas, e.g., N 2 Performed in a slightly reduced pressure state by supplying
- the exhaust system is switched to the reduced pressure exhaust system 21 (automatic switching), and the pressure in the processing furnace 1 is reduced again by evacuation. Then, through the control of Yuichi 6
- the temperature in the processing furnace 1 is reduced to a predetermined temperature, for example, about 300 ° C.
- the inside of the processing furnace 1 is returned to normal pressure, the wafer boat 4 is unloaded from the inside of the processing furnace 1, and cooling (cooling the semiconductor wafer to a temperature at which the semiconductor wafer can be transported) is performed. It is preferable that the decompression or evacuation again after the heat treatment step includes a cycle purge step.
- the semiconductor wafer W is housed in the processing furnace 1 which has been heated to a predetermined temperature in advance, the temperature of the processing furnace 1 is raised to the predetermined processing temperature, and the semiconductor wafer W is supplied by supplying water vapor as a processing gas.
- the temperature raising step is performed under reduced pressure, so that the semiconductor wafer W can be heated to a predetermined processing temperature with oxidizing species removed. Therefore, the formation of a natural oxide film in the temperature raising step can be suppressed, and an extremely thin oxide film with excellent quality can be formed.
- the inside of the processing furnace 1 is depressurized by evacuation not only before the desired heat treatment step but also after the step, unnecessary oxidizing species other than in the desired heat treatment step are sufficiently eliminated, and naturally.
- the formation of an oxide film can be sufficiently suppressed. Therefore, it is possible to form an ultra-thin oxide film having excellent quality with uniform film quality and thickness. For example, a SiO 2 film having a thickness of about 2 nm can be formed.
- the step of depressurizing or evacuating the processing furnace 1 includes a so-called cycle purge, rapid depressurization and replacement can be performed, thereby improving throughput.
- the heat treatment apparatus includes a combustion apparatus 8 which is a steam supply means for supplying steam into the processing furnace 1, and a normal pressure exhaust system for evacuating the processing furnace 1 at a slight differential pressure or a slight reduced pressure during the heat treatment process. 1 and a reduced pressure exhaust system 21 capable of evacuating the inside of the processing furnace 1 before and after the heat treatment step.
- the combination valve 18 A, 1 is used to switch between the normal pressure exhaust system 12 and the reduced pressure exhaust system 21. Since the heat treatment is performed using 8B, the heat treatment method described above can be reliably and easily performed.
- the combustion device 8 since the c which is supplied configured to be able to water vapor at a minute flow rate, by taking a film formation time sufficient can further form an excellent ultra-thin oxide film quality .
- the combination valves 18 A and 18 B have an opening / closing function and a pressure adjusting function, so that the number of valves can be reduced.
- the configurations of the normal pressure exhaust system 12 and the reduced pressure exhaust system 21 can be simplified, and the cost can be reduced.
- the inside of the treatment furnace 1 is controlled to a predetermined pressure, for example, about 133 hPa, and the nitrogen monoxide gas NO or the nitric oxide is controlled.
- the diffusion process may be performed by supplying nitrogen gas N 20 .
- the oxidation processing apparatus capable of performing the decompression processing is an apparatus for supplying a processing gas into the processing furnace 1 accommodating the semiconductor wafer W and heat-treating the semiconductor wafer W at a predetermined processing temperature.
- a combination valve 18 A, 18 B provided for each of the normal-pressure exhaust system 12 and the reduced-pressure exhaust system 21 and capable of opening and closing adjustment and pressure adjustment; and a differential pressure type or absolute type for detecting the exhaust pressure.
- Pressure type pressure sensors 17, 26, 27, and a control unit 35 which controls the combination knobs 18 A, 18 B based on the detection pressures of these pressure sensors 17, 26, 27. And for this reason, stable control is possible without the need to introduce air or inert gas.
- a switching valve is not required, the structure of the exhaust system is simplified, the running cost of an inert gas such as N 2 can be eliminated, and the cost of the entire apparatus can be reduced.
- an absolute pressure type pressure sensor is used as the pressure sensor 17 of the normal pressure exhaust system 12
- stable absolute pressure control near the atmospheric pressure is possible without being affected by fluctuations in the atmospheric pressure due to weather conditions.
- an oxide film having a uniform thickness can be formed at any time.
- FIG. 3 is a diagram illustrating a configuration of an oxidation treatment apparatus according to a third embodiment of the present invention.
- Book The oxidation treatment apparatus (heat treatment apparatus) of the embodiment is configured as a normal pressure type as in the embodiment of FIG. In the present embodiment, the same portions as those in the embodiment of FIG.
- the oxidation treatment apparatus of the present embodiment is provided with an exhaust pipe section 10 of the reaction tube 2 via a quartz exhaust pipe 11 for draining drain water generated by condensation of water vapor in the exhaust gas.
- a duct 40 made of PTFE is connected.
- a normal pressure exhaust system 12 is connected to the duct 40 via a water-cooled condensing pipe 41 rising upward from the duct 40.
- the normal pressure exhaust system 12 is connected to an exhaust duct of a factory exhaust system.
- the exhaust pressure of the factory exhaust system is slightly reduced, for example, with a differential pressure from the atmospheric pressure of about 100 Pa [-7.5 T rr].
- an auxiliary exhaust system capable of reducing the differential pressure to, for example, about several thousand Pa [—several tens of Torr] is connected to the normal pressure exhaust system 12 via a switching valve. May be.
- a drain pipe 42 extending downward is connected to the duct 40.
- the drain pipe 42 is provided with a pneumatically controlled valve 43, a trap 44 and a manual valve 45 in this order.
- the duct 40 is provided with a differential pressure type pressure sensor 46 which is a differential pressure gauge that detects the exhaust pressure of the normal pressure exhaust system 12 as a differential pressure from the atmospheric pressure.
- a differential pressure type pressure sensor 46 for example, a sensor capable of detecting in a range of atmospheric pressure ⁇ 665 Pa [atmospheric pressure ⁇ 50 Torr] is used.
- the normal pressure exhaust system 12 is provided with a combination valve 18 capable of opening and closing adjustment and pressure adjustment. Further, a bypass pipe 47 for bypassing the combination valve 18 is connected to the normal pressure exhaust system 12. The bypass pipe 47 is provided with a bypass valve 48 that is normally closed. The bypass valve 48 is opened to exhaust an inert gas, such as nitrogen gas, introduced into the reaction tube 2 when the combination valve 18 automatically closes, for example, during a power failure.
- the oxidation treatment apparatus of the present embodiment has a leak-tight air-tight structure by using an air-tight material, for example, an O-ring in a pipe connection part of a gas introduction system and an exhaust system and a sealing part of a lid of a processing furnace. ing. For this reason, not only normal pressure processing near atmospheric pressure but also decompression processing and positive pressure processing can be performed without leakage.
- the oxidation treatment apparatus includes an absolute pressure gauge that detects atmospheric pressure as absolute pressure. Based on the absolute pressure type pressure sensor 49 and the pressure detected by the differential pressure type pressure sensor 46, the combination valve 18 is controlled so that the normal pressure exhaust system 12 becomes a set differential pressure (set pressure). And a control unit 50 for correcting the set differential pressure based on the pressure detected by the pressure type pressure sensor 49.
- the absolute pressure type pressure sensor 49 for example, a general sensor that can be detected in a range of 0 to 1330 hPa [0 to 1000 Torr] is used.
- the absolute pressure sensor 49 may be, for example, a sensor capable of detecting the pressure in the range of 800 to 1100 hPa.
- the average atmospheric pressure at the installation site of the oxidation treatment apparatus is 1013.25 hPa (760 T orr)
- the processing pressure (set pressure) is 1013.25 hPa (760 T orr), that is, the set differential pressure is 0.
- P a [0 Torr] control is performed so that the exhaust pressure of the normal-pressure exhaust system 12 becomes the set differential pressure 0 Pa based on the detection pressure of the differential pressure type pressure sensor 46 if the atmospheric pressure does not fluctuate.
- the combination valve 18 is controlled by the part 50.
- the control of only the differential pressure type pressure sensor 46 results in a set differential pressure of 0 Pa [OTor r]
- the exhaust pressure of the normal-pressure exhaust system 12 is controlled to be 997.5 hPa [750 Torr].
- the thickness of the oxide film formed on the surface of the semiconductor wafer changes.
- the atmospheric pressure at that time 997.5 hPa [750 Torr] is detected by the absolute pressure type pressure sensor 49, the detection signal is taken into the control unit 50, and the set differential pressure is increased from 0Pa [0Torr] to +15.75. Correct to hP a [+11.84 Torr].
- the exhaust pressure of the normal-pressure exhaust system 12 can be controlled to be 1013.25 hPa (760 Torr).
- the oxidation processing apparatus supplies a processing gas into a processing furnace 1 that accommodates a semiconductor wafer W.
- a normal-pressure exhaust system 12 for evacuating the processing furnace 1 at a predetermined exhaust pressure which is an apparatus for oxidizing (heat-treating) the semiconductor wafer W at a predetermined processing temperature;
- the combination valve 18 is controlled based on the detected pressure of the absolute pressure type pressure sensor 49 to detect the normal pressure exhaust system 12 based on the detected pressure of the differential pressure type pressure sensor 46 and the absolute pressure type pressure sensor.
- This enables stable control without being affected by changes in the atmospheric pressure (weather) even in the case of differential pressure control, making it possible to form an oxide film with a uniform thickness at any time.
- stable control is possible without the need to introduce air or inert gas.
- the structure of the exhaust system is simplified, the running cost of inert gas such as N 2 can be eliminated, and the cost of the entire apparatus can be reduced.
- a vertical furnace is illustrated as the processing furnace, but a horizontal furnace may be used.
- a batch type processing furnace is illustrated, a single-wafer processing furnace may be used.
- the object to be processed may be, for example, an LCD substrate or a glass substrate other than the semiconductor wafer.
- the steam supply means is not limited to the combustion type, and may be, for example, a vaporizer type, a catalytic type, a boiling type, or the like.
- the present invention is applicable not only to an oxidation treatment apparatus but also to a diffusion treatment apparatus, a CVD treatment apparatus, an annealing treatment apparatus, and the like. Applicable.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
- Formation Of Insulating Films (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE60033423T DE60033423T2 (de) | 1999-11-09 | 2000-11-09 | Ofen |
EP00974864A EP1235262B1 (en) | 1999-11-09 | 2000-11-09 | Heat treatment device |
US10/129,661 US6936108B1 (en) | 1999-11-09 | 2000-11-09 | Heat treatment device |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP31792999 | 1999-11-09 | ||
JP11/317929 | 1999-11-09 | ||
JP2000-184309 | 2000-06-20 | ||
JP2000184309A JP3543949B2 (ja) | 1999-11-09 | 2000-06-20 | 熱処理装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2001035453A1 true WO2001035453A1 (fr) | 2001-05-17 |
Family
ID=26569191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2000/007886 WO2001035453A1 (fr) | 1999-11-09 | 2000-11-09 | Dispositif de traitement thermique |
Country Status (7)
Country | Link |
---|---|
US (1) | US6936108B1 (ja) |
EP (1) | EP1235262B1 (ja) |
JP (1) | JP3543949B2 (ja) |
KR (1) | KR100636436B1 (ja) |
DE (1) | DE60033423T2 (ja) |
TW (1) | TW473791B (ja) |
WO (1) | WO2001035453A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003012849A1 (fr) * | 2001-07-30 | 2003-02-13 | Tokyo Electron Limited | Appareil de traitement thermique |
EP1357582A4 (en) * | 2000-10-27 | 2005-02-02 | Tokyo Electron Ltd | THERMAL TREATMENT DEVICE |
CN104197731A (zh) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | 防爆窑炉的控制柜 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4813854B2 (ja) * | 2005-09-09 | 2011-11-09 | 株式会社日立国際電気 | 基板処理装置及び半導体の製造方法 |
US7682987B2 (en) * | 2006-06-28 | 2010-03-23 | Hitachi Kokusai Electric Inc. | Device for processing substrate and method of manufacturing semiconductor device |
US8662886B2 (en) * | 2007-11-12 | 2014-03-04 | Micrel, Inc. | System for improved pressure control in horizontal diffusion furnace scavenger system for controlling oxide growth |
JP4961381B2 (ja) * | 2008-04-14 | 2012-06-27 | 株式会社日立国際電気 | 基板処理装置、基板処理方法及び半導体装置の製造方法 |
TWI381475B (zh) * | 2009-03-23 | 2013-01-01 | Au Optronics Corp | 基板處理系統及顯影方法 |
JP5842032B2 (ja) * | 2014-05-26 | 2016-01-13 | 光洋サーモシステム株式会社 | 基板の熱処理装置 |
KR102405723B1 (ko) * | 2017-08-18 | 2022-06-07 | 어플라이드 머티어리얼스, 인코포레이티드 | 고압 및 고온 어닐링 챔버 |
CN112349623A (zh) * | 2019-08-06 | 2021-02-09 | 株式会社国际电气 | 基板处理装置、半导体装置的制造方法和计算机可读取记录介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0626248U (ja) * | 1992-09-03 | 1994-04-08 | 神鋼電機株式会社 | 表面処理装置 |
JPH0758032A (ja) * | 1993-08-09 | 1995-03-03 | Hitachi Electron Eng Co Ltd | 圧力制御装置および圧力制御方法 |
JPH08139085A (ja) * | 1994-11-04 | 1996-05-31 | Nippon Steel Corp | 半導体製造装置 |
JPH11233505A (ja) * | 1998-02-13 | 1999-08-27 | Tokyo Electron Ltd | 排気装置 |
Family Cites Families (31)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU585531B2 (en) * | 1984-09-17 | 1989-06-22 | Mitsubishi Jukogyo Kabushiki Kaisha | Method and apparatus for vacuum deposition plating |
JPS6317520A (ja) * | 1986-07-10 | 1988-01-25 | Hitachi Metals Ltd | 化学気相成長装置用圧力制御装置 |
JP2598637B2 (ja) | 1987-02-26 | 1997-04-09 | 東京エレクトロン株式会社 | 酸化・拡散装置 |
JPH0626248A (ja) | 1992-07-06 | 1994-02-01 | Shiroki Corp | シリンダ錠 |
JPH0653149A (ja) * | 1992-07-31 | 1994-02-25 | Tokyo Electron Ltd | 半導体製造装置用シール材 |
JP3134137B2 (ja) * | 1993-01-13 | 2001-02-13 | 東京エレクトロン株式会社 | 縦型処理装置 |
US5407349A (en) * | 1993-01-22 | 1995-04-18 | International Business Machines Corporation | Exhaust system for high temperature furnace |
JP3262623B2 (ja) * | 1993-02-17 | 2002-03-04 | 東京エレクトロン株式会社 | 減圧処理方法及び装置 |
US5445521A (en) * | 1993-05-31 | 1995-08-29 | Tokyo Electron Kabushiki Kaisha | Heat treating method and device |
US5484484A (en) * | 1993-07-03 | 1996-01-16 | Tokyo Electron Kabushiki | Thermal processing method and apparatus therefor |
US5578132A (en) * | 1993-07-07 | 1996-11-26 | Tokyo Electron Kabushiki Kaisha | Apparatus for heat treating semiconductors at normal pressure and low pressure |
US5777300A (en) * | 1993-11-19 | 1998-07-07 | Tokyo Electron Kabushiki Kaisha | Processing furnace for oxidizing objects |
US5421894A (en) * | 1994-02-24 | 1995-06-06 | Applied Materials, Inc. | Power loss recovery for wafer heater |
JP3501524B2 (ja) * | 1994-07-01 | 2004-03-02 | 東京エレクトロン株式会社 | 処理装置の真空排気システム |
US5851293A (en) | 1996-03-29 | 1998-12-22 | Atmi Ecosys Corporation | Flow-stabilized wet scrubber system for treatment of process gases from semiconductor manufacturing operations |
US5888579A (en) * | 1996-07-29 | 1999-03-30 | Texas Instruments-Acer Incorporated | Method and apparatus for preventing particle contamination in a process chamber |
TW410237B (en) * | 1996-12-25 | 2000-11-01 | Nippon Steel Corp | Vacuum, pressure reduction refining method and the vacuum, pressure reduction refining equipment |
JP3270730B2 (ja) * | 1997-03-21 | 2002-04-02 | 株式会社日立国際電気 | 基板処理装置及び基板処理方法 |
JP3567070B2 (ja) * | 1997-12-27 | 2004-09-15 | 東京エレクトロン株式会社 | 熱処理装置及び熱処理方法 |
US6165272A (en) * | 1998-09-18 | 2000-12-26 | Taiwan Semiconductor Manufacturing Company, Ltd | Closed-loop controlled apparatus for preventing chamber contamination |
US6106626A (en) * | 1998-12-03 | 2000-08-22 | Taiwan Semincondutor Manufacturing Company, Ltd | Apparatus and method for preventing chamber contamination |
JP2001023978A (ja) * | 1999-07-05 | 2001-01-26 | Mitsubishi Electric Corp | 半導体装置の製造装置および製造方法 |
US20020020433A1 (en) * | 1999-12-28 | 2002-02-21 | Asami Suemura | Oxidation apparatus and method of cleaning the same |
US7076920B2 (en) * | 2000-03-22 | 2006-07-18 | Mks Instruments, Inc. | Method of using a combination differential and absolute pressure transducer for controlling a load lock |
US6578600B1 (en) * | 2000-10-31 | 2003-06-17 | International Business Machines Corporation | Gas isolation box |
JP3554847B2 (ja) * | 2001-07-30 | 2004-08-18 | 東京エレクトロン株式会社 | 熱処理装置 |
KR100461845B1 (ko) * | 2002-01-07 | 2004-12-14 | 주성엔지니어링(주) | 액체운송장치의 안정성 확보 시스템 |
KR100863782B1 (ko) * | 2002-03-08 | 2008-10-16 | 도쿄엘렉트론가부시키가이샤 | 기판처리장치 및 기판처리방법 |
JP3999059B2 (ja) * | 2002-06-26 | 2007-10-31 | 東京エレクトロン株式会社 | 基板処理システム及び基板処理方法 |
JP4093462B2 (ja) * | 2002-10-09 | 2008-06-04 | 東京エレクトロン株式会社 | 基板処理方法及び基板処理装置 |
US6954585B2 (en) * | 2002-12-03 | 2005-10-11 | Tokyo Electron Limited | Substrate processing method and apparatus |
-
2000
- 2000-06-20 JP JP2000184309A patent/JP3543949B2/ja not_active Expired - Lifetime
- 2000-11-09 DE DE60033423T patent/DE60033423T2/de not_active Expired - Lifetime
- 2000-11-09 WO PCT/JP2000/007886 patent/WO2001035453A1/ja active IP Right Grant
- 2000-11-09 EP EP00974864A patent/EP1235262B1/en not_active Expired - Lifetime
- 2000-11-09 US US10/129,661 patent/US6936108B1/en not_active Expired - Lifetime
- 2000-11-09 KR KR1020027005843A patent/KR100636436B1/ko active IP Right Grant
- 2000-11-09 TW TW089123699A patent/TW473791B/zh not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0626248U (ja) * | 1992-09-03 | 1994-04-08 | 神鋼電機株式会社 | 表面処理装置 |
JPH0758032A (ja) * | 1993-08-09 | 1995-03-03 | Hitachi Electron Eng Co Ltd | 圧力制御装置および圧力制御方法 |
JPH08139085A (ja) * | 1994-11-04 | 1996-05-31 | Nippon Steel Corp | 半導体製造装置 |
JPH11233505A (ja) * | 1998-02-13 | 1999-08-27 | Tokyo Electron Ltd | 排気装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1235262A4 * |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1357582A4 (en) * | 2000-10-27 | 2005-02-02 | Tokyo Electron Ltd | THERMAL TREATMENT DEVICE |
WO2003012849A1 (fr) * | 2001-07-30 | 2003-02-13 | Tokyo Electron Limited | Appareil de traitement thermique |
KR100814582B1 (ko) * | 2001-07-30 | 2008-03-17 | 도쿄 엘렉트론 가부시키가이샤 | 열처리 장치 |
CN104197731A (zh) * | 2014-09-15 | 2014-12-10 | 常州宝仪机电设备有限公司 | 防爆窑炉的控制柜 |
Also Published As
Publication number | Publication date |
---|---|
US6936108B1 (en) | 2005-08-30 |
KR20020049029A (ko) | 2002-06-24 |
TW473791B (en) | 2002-01-21 |
EP1235262A1 (en) | 2002-08-28 |
DE60033423T2 (de) | 2007-11-29 |
EP1235262B1 (en) | 2007-02-14 |
JP3543949B2 (ja) | 2004-07-21 |
EP1235262A4 (en) | 2005-01-05 |
KR100636436B1 (ko) | 2006-10-18 |
JP2001201263A (ja) | 2001-07-27 |
DE60033423D1 (de) | 2007-03-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100591723B1 (ko) | 산화처리방법 및 산화처리장치 | |
JP3872952B2 (ja) | 熱処理装置及び熱処理方法 | |
US7208428B2 (en) | Method and apparatus for treating article to be treated | |
JP3543949B2 (ja) | 熱処理装置 | |
TW200809966A (en) | Substrate processing apparatus and a method for manufacturing semiconductor device | |
JP3554847B2 (ja) | 熱処理装置 | |
JP3468577B2 (ja) | 熱処理装置 | |
WO2007111351A1 (ja) | 半導体装置の製造方法 | |
KR100781414B1 (ko) | 열처리장치 | |
JP2001250818A (ja) | 酸化処理装置及びそのクリーニング方法 | |
JP4640891B2 (ja) | 熱処理装置 | |
JP3267766B2 (ja) | 熱処理装置及びその運転方法 | |
JP4597393B2 (ja) | 熱処理装置 | |
JP3471077B2 (ja) | 真空容器の圧力制御方法 | |
JP2002353210A (ja) | 熱処理装置および熱処理方法 | |
KR20200096433A (ko) | 배기 장치, 처리 시스템 및 처리 방법 | |
JP4490636B2 (ja) | 半導体製造装置および半導体装置の製造方法 | |
JP2006040990A (ja) | 減圧熱処理装置及びその常圧復帰方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): KR US |
|
AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE TR |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
WWE | Wipo information: entry into national phase |
Ref document number: 1020027005843 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10129661 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2000974864 Country of ref document: EP |
|
WWP | Wipo information: published in national office |
Ref document number: 1020027005843 Country of ref document: KR |
|
WWP | Wipo information: published in national office |
Ref document number: 2000974864 Country of ref document: EP |
|
WWG | Wipo information: grant in national office |
Ref document number: 2000974864 Country of ref document: EP |