WO2018052074A1 - 吸光度計及び該吸光度計を用いた半導体製造装置 - Google Patents
吸光度計及び該吸光度計を用いた半導体製造装置 Download PDFInfo
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- WO2018052074A1 WO2018052074A1 PCT/JP2017/033238 JP2017033238W WO2018052074A1 WO 2018052074 A1 WO2018052074 A1 WO 2018052074A1 JP 2017033238 W JP2017033238 W JP 2017033238W WO 2018052074 A1 WO2018052074 A1 WO 2018052074A1
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- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
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- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C16/00—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
- C23C16/44—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating
- C23C16/448—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials
- C23C16/4481—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material
- C23C16/4482—Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes characterised by the method of coating characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials by evaporation using carrier gas in contact with the source material by bubbling of carrier gas through liquid source material
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- C—CHEMISTRY; METALLURGY
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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
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- 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
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- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
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- 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
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- H01L21/31—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to form insulating layers thereon, e.g. for masking or by using photolithographic techniques; After treatment of these layers; Selection of materials for these layers
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- G01N21/59—Transmissivity
- G01N21/61—Non-dispersive gas analysers
Definitions
- the present invention relates to an absorptiometer and a semiconductor manufacturing apparatus using the absorptiometer.
- an absorptiometer using infrared spectroscopy (IR) for measuring the concentration of a sample gas As an absorptiometer using infrared spectroscopy (IR) for measuring the concentration of a sample gas, as disclosed in Patent Document 1, a pair provided so as to face each other with an accommodation space for accommodating a sample gas interposed therebetween.
- a sample storage section provided with a transparent window, a light source section that irradiates light into the storage space through the transparent window on one side, and light emitted from the transparent window on the other side through the storage space
- Some have a light receiving portion that receives light, and a heat insulating portion that is installed adjacent to the light source portion side and the light receiving portion side of the sample storage portion and has a through hole that faces a facing light-transmitting window.
- the conventional absorptiometer even when measuring a high-temperature sample gas, the heat of the sample gas is blocked in the heat insulating portion, and therefore, it is difficult to transmit to the light source portion and the light receiving portion. It is possible to prevent the light source unit and the light receiving unit from being damaged.
- the conventional absorptiometer is also used in a bubbling type semiconductor manufacturing apparatus.
- the vaporization rate is higher than that of a conventional material.
- a material having a low vapor pressure which has a very small amount of material gas when vaporized, has come to be used.
- the temperature of the sample gas introduced into the absorptiometer may be 300 ° C. or higher.
- the present invention when measuring a high-temperature sample gas, can protect the light source unit and the light receiving unit from the heat of the sample gas without increasing the distance from the light source unit to the light receiving unit, and maintains high measurement accuracy.
- the main problem is to obtain an absorptiometer that can be used.
- the absorptiometer includes the sample storage unit including a pair of light-transmitting windows attached so as to face each other with a storage space for storing the sample gas, and the storage through the light-transmitting window on the one side.
- a light source unit that irradiates light in the space; and a light receiving unit that receives light emitted from the other light transmitting window through the storage space, the sample storage unit and the light source
- a heat insulating portion interposed between one or both of the light receiving portion and the cooling interposed between the sample storage portion and the light source portion or the light receiving portion, similar to the at least one heat insulating portion.
- the heat insulation part is arrange
- the heat insulation part in this invention interrupts
- the cooling unit in the present invention cools the heat of the sample gas transmitted to the cooling unit via the sample storage unit before being transmitted to the light source unit or the light receiving unit. For example, the cooling unit Those that cool by lowering the temperature of themselves, those that cool by improving the heat radiation efficiency of the cooling unit itself, or combinations thereof are included.
- the cooling unit according to the present invention promotes a decrease in the temperature of the heat so that the heat transmitted to the cooling unit through the sample storage unit is not transmitted to the light source unit or the light receiving unit, specifically, at least the light source unit.
- Any temperature may be used as long as the temperature of the surface facing the side or the light receiving part is kept below the temperature of the light source part or the light receiving part.
- the heat of the sample gas transmitted from the sample storage unit is forcibly cooled by the cooling unit, even if the thickness of the heat insulating unit is reduced, the light source unit and the light receiving unit are at a high temperature (for example, 300 ° C. As described above, the sample gas is not damaged by the heat, and accordingly, the distance from the light source unit to the light receiving unit can be shortened. As a result, high measurement accuracy can be maintained.
- the heat insulating portion is interposed between the light transmitting window installed in the sample storage portion and the cooling portion, the outer surface of the light transmitting window (the surface opposite to the surface on the storage space side) is directly formed by the cooling portion.
- the absorptiometer includes the sample storage unit, the light source unit, the light receiving unit, the heat insulating unit interposed between the sample storage unit and the light source unit, and the sample storage unit and the light source unit as well as the heat insulating unit.
- the cooling unit interposed between the sample storage unit and the light receiving unit, the heat insulating unit interposed between the sample storage unit and the light receiving unit, and the cooling interposed between the sample storage unit and the light receiving unit in the same manner as the heat insulating unit It is more preferable that at least one pair selected so as to be opposed to each other is adjacent to each other with its opposing surfaces in close contact with each other, and all the pairs arranged to face each other are opposed to each other. More preferably, the surfaces to be adhered are adjacent to each other. As the number of adjacent sets increases, the distance from the light source unit to the light receiving unit decreases, and as a result, the measurement accuracy also increases.
- the at least one light-transmitting window may be attached to the sample container via a fixed frame, and the fixed frame may be formed of a metal material.
- rubber made of rubber with low thermal conductivity is used as a seal for attaching a translucent window to the sample storage, and heat transmitted from the sample storage is blocked by the rubber seal. Therefore, the temperature rise of the translucent window is hindered, and a large temperature difference is generated between the translucent window and the sample gas. Condensation occurs on the side surface), and the light is blocked by the condensation and the intensity of the light decreases. As a result, there is a problem that the measurement accuracy decreases.
- the heat transmitted from the sample container is efficiently transmitted to the light-transmitting window through the fixed frame, and thus, the space between the light-transmitting window and the sample gas.
- the space between the light-transmitting window and the sample gas There is no big temperature difference, Condensation on the inside surface of the light window (surface of the housing space side) is likely to occur, it can be kept high measurement accuracy.
- the coolant may be forced to flow through the cooling unit.
- the cooling part is composed of a block body, a flow passage through which the coolant flows is formed inside the block body, and the coolant introduced into the flow passage from the introduction port of the flow passage. However, it may be led out of the flow passage from the lead-out port of the flow passage.
- a heat insulating portion is interposed between the sample storage portion and both the light source portion and the light receiving portion, and between the light source portion and the light receiving portion of the sample storage portion as well as the respective heat insulating portions.
- a coolant led out from the flow path of the cooling part installed on the light receiving part side with respect to the sample containing part via the outlet port is a light source for the sample containing part.
- the cooling unit installed on the side of the unit, and if this is the case, even though two cooling units are used It is sufficient to provide one introduction port and one outlet port connected to the device for forcibly circulating the coolant such as a pump, and the connection work is facilitated, and the coolant is supplied to the cooling unit on the light receiving unit side. After being distributed, it is distributed to the cooling unit on the light source side. Therefore, it is possible to efficiently cool the light receiving portion has low heat resistance as compared with the light source unit at low temperatures.
- the semiconductor manufacturing apparatus using the absorptiometer according to the present invention mixes and transports a material gas generated by heating a material (for example, heated to 300 ° C. or more) into a carrier gas, and the material gas and the carrier The gas mixture is measured by passing the mixed gas as a sample gas through the sample container of the absorptiometer.
- a cooling unit of a system that circulates a coolant is used in each apparatus such as a plasma generator installed in a film forming chamber.
- the coolant can be used for the absorptiometer.
- the material gas may be mixed with a preheated carrier gas and transported.
- the carrier gas to be mixed with the material gas is preheated, it is possible to suppress a temperature drop of the material gas accompanying the mixing of the carrier gas, thereby allowing a high-temperature mixed gas to flow through the absorptiometer.
- the sample gas is a mixed gas obtained by adding a dilution gas to the material gas and the carrier gas.
- a preheated dilution gas may be added to the material gas and the carrier gas.
- the dilution gas to be added to the material gas and the carrier gas is preheated, it is possible to suppress a temperature drop of the material gas and the carrier gas due to the mixing of the dilution gas.
- a mixed gas can be circulated.
- the absorptiometer 100 of the present embodiment irradiates a sample gas with infrared light of a predetermined wavelength, and calculates the characteristics of the measurement target substance contained in the sample gas from the attenuation rate (transmittance), so-called infrared spectroscopy (IR). Is used.
- infrared spectroscopy there are those using Fourier transform infrared spectroscopy (FTIR) and those using non-dispersive infrared analysis (NDIR). It can be applied to an absorptiometer using any infrared spectroscopy.
- the absorbance meter 100 of the present embodiment is used in a bubbling semiconductor manufacturing apparatus 200.
- a material gas obtained by vaporizing a low vapor pressure material is transported together with a carrier gas, and the flow rate of the material gas in the mixed gas composed of the material gas and the carrier gas is set.
- an absorptiometer 100 includes a sample storage unit 10 that includes a storage space 11 that stores a sample gas, a light source unit 20 that emits light into the storage space 11, and a storage space 11.
- a light receiving unit 30 that receives light emitted from the inside, a first heat insulating unit 40a interposed between the sample storage unit 10 and the light source unit 20 and installed adjacent to the sample storage unit 10,
- a second heat insulating portion 40b interposed between the sample storage portion 10 and the light receiving portion 20 and installed adjacent to the sample storage portion 10, and the sample storage portion 10 in the same manner as the first heat insulating portion 40a.
- the sample storage unit 10 is of a flow type formed in a cylindrical shape with both ends opened, and a hollow extending in the axial direction of the cylindrical body is a storage space 11 for storing sample gas. And sample gas is introduce
- a pair of lateral holes 12, 12 extending in a direction orthogonal to the axial direction of the storage space 11 (the direction in which the sample gas flows) are formed in the side walls facing the storage space 11 of the sample storage unit 10.
- Each horizontal hole 12 has a stepped inner wall whose outer side is wider than the inner side.
- a translucent window 13 is attached via a fixed frame 14 so as to close each lateral hole 12.
- the light irradiated from the outside of the sample storage unit 10 can pass through the storage space 11 across the pair of transparent windows 13 and 13 in a direction perpendicular to the axial direction.
- the sample accommodating part 10 is formed with the metal material, and the inside of the accommodating space 11 can be adjusted now to fixed temperature with the heater (not shown) attached to the side wall.
- the translucent window 13 is a plate-like thing having translucency made of sapphire glass or the like.
- the fixing frame 14 is formed in a ring shape, and is fixed to the sample storage unit 10 by placing the horizontal hole 12 in communication with the hollow portion and placing it in an opening outside the horizontal hole 12. And the translucent window 13 is being fixed in the state fitted in the groove
- the fixed frame 14 is made of a metal material. Therefore, the present embodiment has a configuration in which the translucent window 13 is attached via the metal fixed frame 14 so as to close the lateral hole 12 communicating with the accommodation space 11 of the sample accommodation unit 10.
- the light source unit 20 has a structure in which a light source 21 that emits light is held by a light source holding structure 22.
- the light source unit 20 is attached to the sample storage unit 10 via the first heat insulating unit 40a and the first cooling unit 50a.
- the light source 21 for example, an incandescent type that heats a filament to emit light, an LED, or a laser device can be used.
- the light source holding structure 22 has a structure in which the light source 21 is fixed in the case body 23 via an accompanying member.
- the accompanying member is a member for fixing the light source 21 in the case body 23.
- the case body 23 opens in a direction facing the sample storage unit 10,
- the cover body 24 attached so as to close the opening is shown.
- An insertion hole 25 is formed in the cover body 24 at a portion facing the light transmission window 13 on one side of the sample storage unit 10, and the light source 21 is fixed to the insertion hole 25 with the irradiation direction directed.
- the light emitted from the light source 21 passes through the insertion hole 25 of the cover body 24 and travels toward the translucent window 13 on one side.
- the light receiving unit 30 has a structure in which a photodetector 31 for detecting light is held by a photodetector holding structure 32.
- the light receiving unit 30 is attached to the sample storage unit 10 via the second heat insulating unit 40b and the second cooling unit 50b.
- the photodetector holding structure 32 has a structure in which the photodetector 31 is fixed in the case body 33 via an accompanying member.
- the accompanying member is a member for fixing the photodetector 31 in the case body 33.
- the case body 33 opens toward the direction facing the sample storage unit 10.
- the cover body 34 attached to close the opening is shown.
- the cover body 34 is formed with an insertion hole 35 extending inwardly from a portion facing the light transmitting window 13 on the other side of the sample storage unit 10, and a photodetector 31 is provided at the end on the back side of the insertion hole 35. It is fixed.
- the insertion hole 35 has a shape bent at a right angle after extending inward along the traveling direction of the light emitted from the light transmitting window 13 on the other side of the sample storage unit 10.
- the insertion hole 35 is provided with a reflection mirror 36 at the bent portion, and the reflection mirror 36 bends the traveling direction of the light emitted from the light transmitting window 13 on the other side of the sample storage unit 10, and the bending thereof.
- the light thus led is guided so as to reach the photodetector 31 installed at the rear end of the insertion hole 35.
- the reflection mirror 36 not only bends the traveling direction of the light emitted from the light transmitting window 13 on the other side of the sample storage unit 10 but also plays a role of condensing the light to the photodetector 31.
- an information processing device that calculates characteristics such as the concentration and partial pressure of the measurement target substance contained in the sample gas based on the intensity of light detected by the photodetector 31 is provided in the case body 33. Is provided.
- the first heat insulating part 40a and the second heat insulating part 40b are made of a block-like heat insulating material, and are made of a material having a lower heat transfer coefficient than the material forming the sample storage part 10.
- the 1st heat insulation part 40a has the role which interrupts to some extent that the heat
- the second heat insulating part 40b has a role of blocking the heat of the sample gas transmitted from the sample storage part 10 from being transmitted to the light receiving part 30 side to some extent, and the inner surface is on the light receiving part 30 side of the sample storage part 10 In close contact with the inner surface of the second cooling section 50b, with the outer surface in close contact with the inner surface of the second second cooling section 50b, and sandwiched between the sample storage section 10 and the second cooling section 50b. It is attached with.
- through holes 41a and 41b penetrating from the inner surface to the outer surface are formed in portions facing the light transmitting windows 13 and 13 of the sample storage portion 10, respectively. Yes.
- the 1st cooling part 50a and the 2nd cooling part 50b consist of the flat block bodies 51a and 51b excellent in thermal conductivity, respectively.
- the first cooling unit 50a serves to prevent the light source unit 20 from being heated by cooling the heat of the sample gas transmitted from the sample storage unit 10 that cannot be completely blocked by the first heat insulating unit 40a.
- the block body 51a is in close contact with the outer surface of the first heat insulating portion 40a, and the outer surface of the block body 51a is in close contact with the inner surface of the light source unit 20, adjacent to the light source unit 20. It is attached in a state of being sandwiched between the first heat insulating portions 40a.
- the first cooling unit 50 a is cooled so that at least the opposing surface of the light source unit 20 is maintained at a temperature equal to or lower than the temperature of the light source unit 20.
- the second cooling unit 50b has a role of cooling the heat of the sample gas transmitted from the sample storage unit 10 that cannot be completely blocked by the second heat insulating unit 40b so that the light receiving unit 30 is not heated.
- the inner surface of the block body 51b is adjacent to the outer surface of the second heat insulating portion 40b, and the outer surface of the block body 51b is adjacent to the inner surface of the light receiving portion 30, adjacent to the light receiving portion 30. It is attached in a state of being sandwiched between the second heat insulating portions 40b.
- the second cooling unit 50 b is cooled so that at least the opposing surface of the light receiving unit 30 is maintained at a temperature equal to or lower than the temperature of the light receiving unit 30.
- flow passages 52a and 52b through which a coolant flows are formed inside the block bodies 51a and 51b of the first cooling portion 50a and the second cooling portion 50b.
- 52b has a pair of openings, and one opening of the flow passages 52a and 52b forms introduction ports 53a and 53b for introducing the coolant into the flow passages 52a and 52b, and the other opening of the flow passages 52a and 52b.
- introduction ports 53a and 53b for introducing the coolant into the flow passages 52a and 52b
- the other opening of the flow passages 52a and 52b Are formed outside the flow passages 52a and 52b to lead out ports 54a and 54b for leading the coolant.
- through-holes 55a and 55b penetrating from the inner surface to the outer surface are formed in portions of the block bodies 51a and 51b facing the light-transmitting windows 13 and 13 of the sample storage unit 10.
- the flow passages 52a and 52b formed inside the block bodies 51a and 51b are formed so as to surround the through holes 55a and 55b.
- the coolant introduced from the outside of the flow passages 52a and 52b into the flow passages 52a and 52b through the introduction ports 53a and 53b flows along the through holes 55a and 55b and is led out from the flow passages 52a and 52b. It is led out of the flow passages 52a and 52b through the ports 54a and 54b.
- the coolant may be liquid or gaseous as long as it flows in the flow passages 52a and 52b, but safety, cost, and heat transfer coefficient are taken into consideration. Then, it is preferable to use water.
- the outlet port 54a of the first cooling unit 50a and the introduction port 53b of the second cooling unit 50b are connected to a pump for forcibly circulating the coolant, and the second cooling unit
- the outlet port 54b of the part 50b is connected to the introduction port 53a of the first cooling part 50a.
- the through hole 55a of the first cooling unit 50a communicates with the through hole 41a formed in the first heat insulating unit 40a, and also communicates with the insertion hole 25 formed in the light source unit 20, whereby the light source One communication hole extending from the light source 21 of the unit 20 to the light transmitting window 13 on one side of the sample storage unit 10 is formed, and this communication hole becomes a path of light emitted from the light source 21.
- the through hole 55b of the second cooling part 50b communicates with the through hole 41b formed in the second heat insulating part 40b and also communicates with the insertion hole 35 formed in the light receiving part 30, thereby receiving light.
- One communication hole extending from the light detection unit 31 of the unit 30 to the light transmitting window 13 on the other side of the sample storage unit 10 is formed, and this communication hole becomes a path of light emitted from the light source 21.
- the light emitted from the light source of the light source unit 20 passes through the insertion hole 25 and escapes from the light source holding structure 22, and the first cooling unit 50 a and the first heat insulation. It passes through the through holes 55a and 41a of the portion 40a and reaches the sample storage portion 10. Subsequently, the light reaching the sample storage unit 10 enters the storage space 11 from the light transmission window 13 on one side, passes through the sample gas flowing through the storage space 11, and is attenuated while passing through the sample gas. The light exits from the optical window 13 out of the accommodation space 11.
- the light emitted from the light transmitting window 13 on the other side reaches the light receiving unit 30 through the through holes 41b and 55b of the second heat insulating unit 40b and the second cooling unit 50b.
- the light reaching the light receiving unit 30 enters the insertion hole 35, is bent by the reflection mirror 36, and is guided to the photodetector 31. Then, based on the intensity of light detected by the photodetector 31, characteristics such as the concentration and partial pressure of the measurement target substance contained in the sample gas are calculated by the information processing apparatus.
- the coolant that has flowed out of the pump is introduced into the flow passage 52b via the introduction port 53b to the second cooling portion 50b that cools the light receiving unit 30, and the inside of the flow passage 52b. After flowing along the through hole 55b, it is led out of the flow passage 52b through the lead-out port 54b, and then flows through the introduction port 53a to the first cooling part 50a that cools the light source part 20. After being introduced into the passage 52a and flowing through the flow passage 52a along the through hole 55a, it is led out of the flow passage 52a through the lead-out port 54a, and circulates back to the pump.
- the semiconductor manufacturing apparatus 200 includes a tank 210 that contains materials, a carrier gas introduction path 220 that introduces a carrier gas into the liquid phase space of the tank 210, and a gas in the tank 210.
- Derivation path 221 for deriving material gas and carrier gas from the phase space dilution gas introduction path 222 for introducing dilution gas into the deriving path 221, carrier gas flow rate adjusting unit 230 and carrier gas installed in the carrier gas introduction path 220 Preheater 240, dilution gas flow rate adjustment unit 250 and dilution gas preheater 260 installed in dilution gas introduction path 222, measurement unit 270 installed in outlet path 221, flow rate control unit 281 and control limit detection unit 282
- the absorbance meter 100 of the present embodiment as one of the measuring devices constituting the measuring unit 270.
- the start end of the carrier gas introduction path 220 is connected to the carrier gas supply mechanism
- the start end of the dilution gas introduction path 222 is connected to the dilution gas supply mechanism
- the end of the lead-out path 221 is Are connected to a film forming chamber for supplying a mixed gas, thereby constituting a film forming apparatus.
- the tank 210 can heat the material accommodated by the heater 211, and the temperature in the tank 210 is monitored by the thermometer 212 so that the temperature in the tank 210 is maintained at a predetermined set temperature. It has become.
- the carrier gas flow rate adjustment unit 230 adjusts the flow rate of the carrier gas introduced into the tank 210, and is a so-called MFC (mass flow controller).
- the carrier gas flow rate adjusting unit 230 is generally installed on the downstream side of the flow meter 230 in the carrier gas introduction path 220 and the flow meter 231 for measuring the flow rate of the carrier gas flowing through the carrier gas introduction path 220, and the opening degree is set.
- a valve 232 for adjusting the flow rate of the carrier gas to be adjusted and introduced into the tank 210, and comparing the set flow rate transmitted from the flow rate control unit 281 with the measured flow rate measured by the flow meter 231. Are adjusted so that the carrier gas at the set flow rate transmitted from the flow rate control unit 281 flows through the carrier gas introduction path 220.
- the carrier gas preheater 240 is installed on the downstream side of the carrier gas flow rate adjusting unit 230 in the carrier gas introduction path 220 and preheats the carrier gas introduced into the tank 210 immediately before being introduced into the tank 210. In addition, it has a role of suppressing a temperature drop in the tank 210 due to the introduction of the carrier gas.
- the dilution gas flow rate adjustment unit 250 adjusts the flow rate of the dilution gas introduced into the outlet path 221 and is a so-called MFC (mass flow controller).
- the dilution gas flow rate adjusting unit 250 is generally installed on the downstream side of the flow meter 251 in the dilution gas introduction path 222 and the flow meter 251 that measures the flow rate of the dilution gas flowing through the dilution gas introduction path 222, and has an opening degree.
- a valve 252 that adjusts the flow rate of the carrier gas that is adjusted and merged into the outlet path 221, compares the set flow rate transmitted from the flow rate control unit 281 with the measured flow rate measured by the flow meter 251, The opening / closing of the valve 252 is adjusted so that the flow rates coincide with each other, so that the dilution gas having the set flow rate transmitted from the flow rate control unit 281 flows through the dilution gas introduction path 222.
- the dilution gas preheater 260 is installed on the downstream side of the dilution gas flow rate adjusting unit 250, and preheats the dilution gas to be introduced into the tank 210 immediately before being introduced into the tank 210. It has a role of suppressing a temperature drop in the tank 210.
- the measurement unit 270 includes the pressure sensor 271 and the absorbance meter 100 of the present embodiment, and both are installed on the downstream side of the position where the dilution gas introduction path 222 of the outlet path 221 is connected.
- the pressure sensor 271 measures the pressure (total pressure) of the mixed gas flowing through the outlet path 221
- the absorptiometer 100 of the present embodiment measures the partial pressure (flow rate index) of the material gas in the mixed gas flowing through the outlet path 221. Value).
- the opening on one end side of the sample storage unit 10 is connected to the upstream side of the lead-out path 221 and the opening on the other side of the sample storage unit 10 is connected to the downstream side of the lead-out path 221. Accordingly, the mixed gas flowing through the outlet path 221 passes along the axial direction of the storage space 11 of the sample storage unit 10.
- the information processing device 280 is a general-purpose or dedicated computer, stores a predetermined program in a memory, and operates the CPU and its peripheral devices in accordance with the program, thereby causing the flow rate control unit 281 and the control limit detection unit 282.
- the flow rate control unit 281 refers to the partial pressure of the material gas in the mixed gas acquired from the absorbance meter 100, and both flow rate adjusting units so that the flow rate of the material gas in the mixed gas approaches a predetermined target flow rate. A set flow rate required for 230 and 250 is transmitted, and the flow rates of the carrier gas and the dilution gas are controlled.
- the flow rate control unit 281 includes an input unit 283 such as a touch panel that can input various types of information.
- control limit detection unit 282 is connected to the flow rate control unit 281, and based on various information acquired from the flow rate control unit 281, depending on the flow rate of the carrier gas by the flow rate control unit 281, The function of detecting that the flow limit control with a predetermined performance cannot be guaranteed and being in a control limit state and outputting that effect is exhibited.
- the control limit detection unit 282 includes a display unit 284 that can display various types of information.
- the target concentration of the material gas in the mixed gas and the initial set flow rates of the carrier gas and the dilution gas are input to the flow rate control unit 281 (step S1).
- the flow control unit 281 transmits the initial setting flow rate of the carrier gas to the carrier gas flow rate adjustment unit 230 and also transmits the initial setting flow rate of the dilution gas to the dilution gas flow rate adjustment unit 250.
- the carrier gas flow rate adjustment unit 230 adjusts the flow rate of the carrier gas flowing through the carrier gas introduction path 220 to the initial set flow rate, and the dilution gas flow rate adjustment unit 250 flows through the dilution gas introduction path 222.
- each gas starts to flow through the semiconductor manufacturing apparatus 200 (step S2).
- the pressure sensor 271 measures the pressure of the mixed gas flowing through the lead-out path 221 at a constant period (step S3), and the absorbance meter 100. Measures the partial pressure of the material gas in the mixed gas flowing through the outlet path 221 (step S4).
- the flow control unit 281 receives the measured pressure measured by the pressure sensor 271 and the measured partial pressure (measured flow index value) measured by the absorbance meter 100, and uses the measured pressure and the target concentration to derive the derivation path.
- the target partial pressure (target flow index value) of the material gas in the mixed gas required when the material gas in the mixed gas flowing through 221 is assumed to have the target concentration is calculated by the equation (1) (step S5).
- P vapor set C x P total (1)
- P vapor set is the target partial pressure of the material gas in the mixed gas
- C the target concentration of the material gas in the mixed gas
- P total is the pressure of the mixed gas.
- the flow controller 281 receives the measured partial pressure measured by the absorbance meter 100, compares the measured partial pressure with the target partial pressure (step S6), and the measured partial pressure is smaller than the target partial pressure.
- a set flow rate for increasing the flow rate of the carrier gas flowing through the carrier gas introduction path 220 is transmitted to the carrier gas flow rate adjusting unit 230, and a set flow rate for decreasing the flow rate of the dilution gas flowing through the dilution gas introduction path 222 is set as the dilution gas. It transmits to the flow volume control part 250.
- the carrier gas flow rate adjusting unit 230 adjusts the flow rate of the carrier gas flowing in the carrier gas introduction channel 220 to the set flow rate so that the flow rate of the material gas in the mixed gas flowing in the outlet channel 221 approaches the optimal flow rate.
- the flow rate increase control is performed in which the dilution gas flow rate adjustment unit 250 adjusts the flow rate of the dilution gas flowing through the dilution gas introduction path 222 to the set flow rate (step S7).
- the measured partial pressure is larger than the target partial pressure
- a set flow rate for reducing the flow rate of the carrier gas flowing through the carrier gas introduction channel 220 is transmitted to the carrier gas flow rate adjusting unit 230, and the dilution gas introduction channel 222 is set.
- a set flow rate for increasing the flow rate of the flowing dilution gas is transmitted to the dilution gas flow rate adjusting unit 250.
- the carrier gas flow rate adjusting unit 230 adjusts the flow rate of the carrier gas flowing in the carrier gas introduction channel 220 to the set flow rate so that the flow rate of the material gas in the mixed gas flowing in the outlet channel 221 approaches the optimal flow rate.
- the flow rate lowering control is performed in which the dilution gas flow rate adjustment unit 250 adjusts the flow rate of the dilution gas flowing through the dilution gas introduction path 222 to the set flow rate (step S8).
- control limit detection unit 282 performs the following operation between step S4 and step S5. More specifically, first, it is determined whether or not the flow rate increase control has been performed in the previous cycle (step S40). If it is determined that the flow rate increase control has been performed in the previous cycle, the flow rate increase control is performed. The measured partial pressure of the previous period measured immediately before with the absorbance meter 100 is compared with the measured partial pressure of the current period measured with the absorbance meter 100 immediately after the flow rate increase control is performed. It is determined whether or not the reverse rotation state is such that the measurement partial pressure of the current cycle, which should be larger than the measurement partial pressure of the previous cycle, is smaller than the measurement partial pressure of the previous cycle (step S41).
- step S42 If it is determined that the reverse rotation state has occurred n times continuously (step S42), and if it has occurred n times continuously, the control limit state has been reached. And output to that effect Step S43), and displays a warning on the display unit 284 (step S44).
- step S40 If it is determined in step S40 that the flow rate increase control is not performed in the previous cycle, it is determined whether the flow rate decrease control is performed in the previous cycle (step S45), and the flow rate is decreased in the previous cycle.
- the measured partial pressure of the previous period measured by the absorbance meter 100 immediately before the flow rate decrease control is performed, and the absorbance meter 100 immediately after the flow rate decrease control is performed.
- the reverse situation where the measured partial pressure of the current cycle, which should be smaller than the measured partial pressure of the previous cycle by flow rate lowering control, is larger than the measured partial pressure of the previous cycle Is determined step S46
- it is determined whether or not the reverse rotation state occurs m times continuously step S47
- m consecutive raw If it has, it is determined that the out of control limit situation outputs to that effect (step S43), and displays a warning on the display unit 284 (step S44).
- the gas control system may be automatically stopped so that the same situation does not continue any more, and the worker who has confirmed the warning displayed on the display unit 284
- the gas control system may be manually stopped.
- the measurement is performed after a predetermined period (for example, after x period, x is a predetermined integer).
- a value smaller than a value that would have been obtained if the partial pressure had increased in proportion to the increase in the flow rate of the carrier gas for example, 1 ⁇ 2 or less of the value that would have been obtained, 1/3 If it has only increased to a value less than or less than 1/4 or the like), it is determined that the control limit is reached.
- step 1 the target total flow rate of the mixed gas optimum for the film forming process is input to the flow rate control unit 281 using the input unit 283, and the carrier gas and the dilution gas are used in the flow rate control in steps S7 and S8.
- the set flow rates of the carrier gas and the dilution gas may be determined so that the mixed gas flow rate approaches the target total flow rate.
- the flow control unit 281 receives the measured pressure measured by the pressure sensor 271 and the measured partial pressure measured by the absorbance meter 100, and when these measured values are measured, the carrier gas flow rate adjusting unit is measured.
- the setting flow rate of the carrier gas set in 230 and the setting flow rate of the dilution gas set in the dilution gas flow rate adjustment unit 250 are received, and in the flow rate control in steps S7 and S8, the measurement pressure, the measurement partial pressure, the carrier Using the gas set flow rate and the dilution gas set flow rate, the calculated total flow rate of the mixed gas is calculated by the equation (2), and the calculated total flow rate of the mixed gas becomes the target total flow rate of the predetermined mixed gas.
- Q total (Qc + Qd) / (1-P vapor ir / P total) (2)
- Q total is the calculated total flow rate of the mixed gas
- Qc is the set flow rate of the carrier gas
- Qd is the set flow rate of the dilution gas
- P vapor ir is the measured partial pressure of the material gas in the mixed gas
- P total is the pressure of the mixed gas (Total pressure).
- both the flow rate of the carrier gas and the flow rate of the dilution gas are increased or decreased.
- the flow rate control can be performed by increasing or decreasing only one of the flow rates. .
- it is determined whether or not each of the reverse rotation situations is made at regular intervals, and when any situation continues n, m times (n, m cycles), the control limit situation is reached. It is judged that it has become, and a message to that effect is output, but it is determined whether or not each of the reverse rotation situations has occurred, and if any situation continues for t hours, it is judged that the control limit situation has been reached However, this may be output.
- the absorbance meter according to the present invention is not limited to the absorbance meter 100 of the above embodiment.
- the heat insulating unit and the cooling unit are installed on both the light source unit 20 side and the light receiving unit 30 side of the sample storage unit 10, but the light source unit 20 of the sample storage unit 10. Any configuration may be used as long as a heat insulating portion is installed on either one or both of the side and the light receiving portion 30 and a pair of cooling portions is installed on at least one heat insulating portion.
- the first heat insulating part 40a and the first cooling part 50a are installed on the light source part 20 side of the sample storage part 10, and the second heat insulating part 40b and the second cooling part 50b are provided on the light receiving part 30 side.
- the first heat insulating part 40a and the first cooling part 50a are not provided on the light source part 20 side of the sample storage part 10, and the second heat insulating part 40b and the second cooling part are provided on the light receiving part 30 side.
- a configuration in which 50b is installed a configuration in which the first heat insulating unit 40a and the first cooling unit 50a are installed on the light source unit 20 side of the sample storage unit 10, and only the second heat insulating unit 40b is installed on the light receiving unit 30 side, Only the 1st heat insulation part 40a may be installed in the light source part 20 side of the sample storage part 10, and the structure which installs the 2nd heat insulation part 40b and the 2nd cooling part 50b in the light-receiving part 30 side may be sufficient.
- This configuration is also included in the absorbance meter according to the present invention.
- the heat insulation parts 40a and 40b and the cooling parts 50a and 50b are arrange
- the communication hole serving as a light path is also bent, it is necessary to attach a reflection mirror in the communication hole so that light travels along the communication hole.
- the light source unit 20, the first cooling unit 50a, the first heat insulating unit 40a, and the sample storage unit 10 are arranged adjacent to each other in this order, and the light receiving unit 30,
- the second cooling unit 50b, the second heat insulating unit 40b, and the sample storage unit 10 are arranged adjacent to each other in this order, but are not necessarily adjacent to each other, for example, the sample storage unit 10 and the first heat insulation unit
- a gap or other member may be interposed between the second heat insulating part 40 b and the second cooling part 50 b and between the second cooling part 50 b and the light receiving part 30.
- the light emitted from the light source unit 20 of the first heat insulating part 40a, the second heat insulating part 40b, the first cooling part 50a, and the second cooling part 50b is preferably formed on the optical path, but a translucent member such as glass may be provided on the optical path of the light.
- the method of fixing the light transmission window 13 to the sample storage unit 10 according to the present invention is not limited to that of the above embodiment.
- a ring-shaped first fixed frame 14 a installed at a step formed on the peripheral wall of the horizontal hole 12 and a ring-shaped second fixed frame 14 b fixed to the opening of the horizontal hole 12. You may fix so that the translucent window 13 may be pinched
- the fixing frame 14 for fixing the light transmission window 13 to the sample storage unit 10 is constituted by two members.
- a light transmission window 13 is installed at a step formed on the peripheral wall of the horizontal hole 12, and the light transmission window 13 is formed by a link-shaped fixing frame 14 fixed to the opening of the horizontal hole 12. You may fix so that it may press against a level
- two cooling parts are used as in the above embodiment, two trifurcated connecting pipes are used, and two openings of one connecting pipe are connected to the introduction ports of both cooling parts and the remaining one is used.
- the pump and both cooling parts can be connected. Good.
- both cooling parts can be cooled uniformly.
- the connection work to the pump can be simplified as in the case of the absorbance meter 100 of the above-described embodiment, by attaching two connecting pipes to both cooling parts in advance.
- the cooling material is circulated by a pump, a fan, or the like, and the temperature is lowered by itself such as the low temperature side of the Peltier element.
- the cooling unit itself such as one that cools by cooling the cooling unit itself, such as one that cools using cooling, or one that promotes heat dissipation and cools by multiple radiating fins, such as a heat sink
- adopted What cools by improving a heat radiation efficiency can be employ
- thermoplastic resin such as polyphenylene sulfide (PPS) or polyether ether ketone (PEEK), ceramic, and inorganic based on glass fiber A system laminate can be used.
- the semiconductor manufacturing apparatus using the absorbance meter 100 according to the present invention is not limited to the semiconductor manufacturing apparatus 200 of the above embodiment.
- the semiconductor manufacturing apparatus 300 shown in FIG. 8 only the carrier gas introduced into the tank 210 via the carrier gas introduction path 220 without the dilution gas introduction path 222 included in the semiconductor manufacturing apparatus 200 of the above embodiment is excluded. You may make it convey the material gas produced
- FIG. The semiconductor manufacturing apparatus 300 is the same as the semiconductor manufacturing apparatus 200 of the embodiment except that the dilution gas introduction path 222 and the dilution gas flow rate adjusting unit 250 and the dilution gas preheater 260 installed in the dilution gas introduction path 222 are excluded.
- the same configuration as that of the semiconductor manufacturing apparatus 200 is provided. Therefore, the measurement object of the measurement unit 270 is a mixed gas composed of the carrier gas and the material gas derived from the tank 210 via the outlet path 221.
- the measurement unit only needs to be able to measure at least one flow index value that is a value that directly or indirectly indicates the concentration of the material gas in the mixed gas. Other values for the gas may be measured.
- the pressure of the mixed gas can be measured in addition to the partial pressure of the material gas in the mixed gas that becomes the flow index value.
- the partial pressure of the material gas in the mixed gas is used as the flow index value, but the flow index value directly or indirectly indicates the concentration of the material gas in the mixed gas. If it is a value, it will not specifically limit. Further, in the semiconductor manufacturing apparatus 200 of the above embodiment, the flow rate index value is measured at a constant period and the flow rate control is performed. However, the concentration control may be performed by continuously measuring the concentration index value.
- the carrier gas flow rate adjusting unit 230 and the dilution gas flow rate adjusting unit 250 are configured by disposing the valves 232 and 252 on the downstream side of the flow meters 231 and 251.
- a valve having valves 232 and 252 arranged on the upstream side of 251 may be used.
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Abstract
Description
10 サンプル収容部
20 光源部
30 受光部
40a 第2の断熱部
40b 第2の断熱部
50a 第2の冷却部
50b 第2の冷却部
200,300 半導体製造装置
210 タンク
220 キャリアガス導入路
221 導出路
222 希釈ガス導入路
230 キャリアガス流量調節部
240 キャリアガス予熱器
250 希釈ガス流量調節部
260 希釈ガス予熱器
270 測定部
280 情報処理装置
281 流量制御部
282 制御限界検知部
P vapor set = C × P total (1)
なお、P vapor setは混合ガス中の材料ガスの目標分圧、Cは混合ガス中の材料ガスの目標濃度、P totalは混合ガスの圧力である。
Q total = (Qc+Qd)/(1-P vapor ir/P total) (2)
なお、Q totalは混合ガスの算出総流量、Qcはキャリアガスの設定流量、Qdは希釈ガスの設定流量、P vapor irは混合ガス中の材料ガスの測定分圧、P totalは混合ガスの圧力(全圧)である。
Claims (9)
- サンプルガスを収容する収容空間を挟んで対向するように取り付けられる一対の透光窓を備えるサンプル収容部と、
前記一方側の透光窓を介して前記収容空間内に光を照射する光源部と、
前記収容空間内を通過して前記他方側の透光窓から出射した光を受光する受光部とを備えるものであって、
前記サンプル収容部と前記光源部又は前記受光部のいずれか一方又は双方との間に介在する断熱部と、
前記少なくとも一つの断熱部と同様に、前記サンプル収容部と前記光源部又は前記受光部との間に介在する冷却部とをさらに具備し、
前記断熱部が前記冷却部に対して前記サンプル収容部側に配置されることを特徴とする吸光度計。 - 前記冷却部内に冷却材を強制的に流通させる請求項1記載の吸光度計。
- 前記サンプル収容部、前記光源部、前記受光部、前記サンプル収容部と前記光源部との間に介在する前記断熱部、該断熱部と同様に前記サンプル収容部と前記光源部との間に介在する前記冷却部、前記サンプル収容部と前記受光部との間に介在する前記断熱部、該断熱部と同様に前記サンプル収容部と前記受光部との間に介在する前記冷却部から選択される、互いに対向するように配置された少なくとも一つの組がその対向する面を密着させて隣接している請求項1記載の吸光度計。
- 前記冷却部が、ブロック体からなっており、前記ブロック体の内部には、冷却材が流通する流通路が形成されており、前記流通路の導入ポートから流通路内に導入された冷却材が、前記流通路の導出ポートから流通路外に導出される請求項1記載の吸光度計。
- 前記サンプル収容部と前記光源部又は前記受光部の双方との間に断熱部が介在していると共に、前記各断熱部と同様に、前記サンプル収容部の前記光源部又は前記受光部との間に冷却部が介在しており、前記サンプル収容部に対して受光部側に設置された冷却部の流通路内から導出ポートを介して導出された冷却材が、前記サンプル収容部に対して光源部側に設置された冷却部の流通路内に導入ポートを介して導入される請求項4記載の吸光度計。
- 前記少なくとも一つの透光窓が、前記サンプル収容部に対して固定枠を介して取り付けられており、前記固定枠が金属材料によって形成されている請求項1記載の吸光度計。
- 材料を加熱して生成した材料ガスをキャリアガスに混合して搬送し、前記材料ガス及び前記キャリアガスを混合した混合ガスを、サンプルガスとして請求項1記載の吸光度計のサンプル収容部に通過させて測定する半導体製造装置。
- 前記材料ガスを予熱したキャリアガスに混合して搬送する請求項7記載の半導体製造装置。
- 前記サンプルガスが、前記材料ガス及び前記キャリアガスにさらに予熱した希釈ガスを加えた混合ガスである請求項7記載の半導体製造装置。
Priority Applications (4)
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JP2018539780A JPWO2018052074A1 (ja) | 2016-09-15 | 2017-09-14 | 吸光度計及び該吸光度計を用いた半導体製造装置 |
CN201780056159.7A CN109690292A (zh) | 2016-09-15 | 2017-09-14 | 吸光光度计和使用该吸光光度计的半导体制造装置 |
US16/333,265 US20190242818A1 (en) | 2016-09-15 | 2017-09-14 | Absorbance meter and semiconductor manufacturing device using absorbance meter |
KR1020197006717A KR20190050978A (ko) | 2016-09-15 | 2017-09-14 | 흡광도계 및 이 흡광도계를 이용한 반도체 제조 장치 |
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JP (1) | JPWO2018052074A1 (ja) |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2020013966A (ja) * | 2018-07-20 | 2020-01-23 | 東京エレクトロン株式会社 | 成膜装置、原料供給装置及び成膜方法 |
WO2020141691A1 (ko) * | 2019-01-04 | 2020-07-09 | (주)플렉시고 | 항온항습 챔버의 결로 방지 장치 |
JP2020183869A (ja) * | 2019-04-26 | 2020-11-12 | 横河電機株式会社 | ガス分析装置 |
WO2021033386A1 (ja) * | 2019-08-20 | 2021-02-25 | 株式会社堀場エステック | 温度測定装置、温度測定方法、及び、温度測定装置用プログラム |
EP3814753A4 (en) * | 2018-06-26 | 2022-03-16 | Arometrix, Inc. | DEVICE, SYSTEM AND METHOD FOR IN SITU OPTICAL MONITORING AND CONTROL OF PLANT MATERIAL EXTRACTION AND PURIFICATION |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7281285B2 (ja) * | 2019-01-28 | 2023-05-25 | 株式会社堀場エステック | 濃度制御装置、及び、ゼロ点調整方法、濃度制御装置用プログラム |
DE102022120732A1 (de) * | 2022-08-17 | 2024-02-22 | Schott Ag | Flusszelle für optische Spektroskopie und Verfahren zur Überwachung biotechnologischer Prozesse |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH049642A (ja) * | 1990-04-27 | 1992-01-14 | Mitsui Toatsu Chem Inc | ビスフェノールaの溶融色測定装置 |
JP2007101433A (ja) * | 2005-10-06 | 2007-04-19 | Horiba Ltd | ガス分析装置 |
JP2007225386A (ja) * | 2006-02-22 | 2007-09-06 | Horiba Ltd | ガス分析装置及び半導体製造装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63167247A (ja) * | 1986-12-27 | 1988-07-11 | Nippon Oil Co Ltd | 油中水分測定方法及びその装置 |
US5045703A (en) * | 1988-03-30 | 1991-09-03 | Nicolet Instrument Corporation | Cold trapping apparatus for infrared transmission analysis including a method and substrate therefor |
US5747808A (en) * | 1994-02-14 | 1998-05-05 | Engelhard Sensor Technologies | NDIR gas sensor |
US6114700A (en) * | 1998-03-31 | 2000-09-05 | Anatel Corporation | NDIR instrument |
TW354647U (en) * | 1998-06-29 | 1999-03-11 | Ind Tech Res Inst | Air sampler |
JPWO2003001136A1 (ja) * | 2001-06-20 | 2004-10-14 | 昭和電工株式会社 | 冷却板及びその製造方法 |
US7063097B2 (en) * | 2003-03-28 | 2006-06-20 | Advanced Technology Materials, Inc. | In-situ gas blending and dilution system for delivery of dilute gas at a predetermined concentration |
KR100909184B1 (ko) * | 2004-03-11 | 2009-07-23 | 주식회사 동진쎄미켐 | 근적외선 분광기를 이용한 리쏘그래피 공정용 조성물의실시간 제어 시스템 및 제어 방법 |
FR2971587B1 (fr) * | 2011-02-14 | 2013-10-18 | Saint Gobain | Analyse de gaz par laser |
US20150237767A1 (en) * | 2011-06-27 | 2015-08-20 | Ebullient, Llc | Heat sink for use with pumped coolant |
JP5915470B2 (ja) * | 2012-08-31 | 2016-05-11 | 株式会社島津製作所 | 分光光度計 |
JP6036200B2 (ja) * | 2012-11-13 | 2016-11-30 | 富士電機株式会社 | 炭化珪素半導体装置の製造方法 |
CN203929228U (zh) * | 2014-05-15 | 2014-11-05 | 黑龙江大学 | 新型分光光度计 |
-
2017
- 2017-09-14 WO PCT/JP2017/033238 patent/WO2018052074A1/ja active Application Filing
- 2017-09-14 JP JP2018539780A patent/JPWO2018052074A1/ja active Pending
- 2017-09-14 CN CN201780056159.7A patent/CN109690292A/zh active Pending
- 2017-09-14 KR KR1020197006717A patent/KR20190050978A/ko unknown
- 2017-09-14 US US16/333,265 patent/US20190242818A1/en not_active Abandoned
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH049642A (ja) * | 1990-04-27 | 1992-01-14 | Mitsui Toatsu Chem Inc | ビスフェノールaの溶融色測定装置 |
JP2007101433A (ja) * | 2005-10-06 | 2007-04-19 | Horiba Ltd | ガス分析装置 |
JP2007225386A (ja) * | 2006-02-22 | 2007-09-06 | Horiba Ltd | ガス分析装置及び半導体製造装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3814753A4 (en) * | 2018-06-26 | 2022-03-16 | Arometrix, Inc. | DEVICE, SYSTEM AND METHOD FOR IN SITU OPTICAL MONITORING AND CONTROL OF PLANT MATERIAL EXTRACTION AND PURIFICATION |
JP2020013966A (ja) * | 2018-07-20 | 2020-01-23 | 東京エレクトロン株式会社 | 成膜装置、原料供給装置及び成膜方法 |
JP7094172B2 (ja) | 2018-07-20 | 2022-07-01 | 東京エレクトロン株式会社 | 成膜装置、原料供給装置及び成膜方法 |
US11753720B2 (en) | 2018-07-20 | 2023-09-12 | Tokyo Electron Limited | Film forming apparatus, source supply apparatus, and film forming method |
WO2020141691A1 (ko) * | 2019-01-04 | 2020-07-09 | (주)플렉시고 | 항온항습 챔버의 결로 방지 장치 |
JP2020183869A (ja) * | 2019-04-26 | 2020-11-12 | 横河電機株式会社 | ガス分析装置 |
JP7176470B2 (ja) | 2019-04-26 | 2022-11-22 | 横河電機株式会社 | ガス分析装置 |
WO2021033386A1 (ja) * | 2019-08-20 | 2021-02-25 | 株式会社堀場エステック | 温度測定装置、温度測定方法、及び、温度測定装置用プログラム |
JP7418448B2 (ja) | 2019-08-20 | 2024-01-19 | 株式会社堀場エステック | 温度測定装置、温度測定方法、及び、温度測定装置用プログラム |
Also Published As
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KR20190050978A (ko) | 2019-05-14 |
CN109690292A (zh) | 2019-04-26 |
JPWO2018052074A1 (ja) | 2019-06-27 |
US20190242818A1 (en) | 2019-08-08 |
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