WO2024061725A1 - Station de mesure d'une contamination moléculaire véhiculée par l'air - Google Patents
Station de mesure d'une contamination moléculaire véhiculée par l'air Download PDFInfo
- Publication number
- WO2024061725A1 WO2024061725A1 PCT/EP2023/075262 EP2023075262W WO2024061725A1 WO 2024061725 A1 WO2024061725 A1 WO 2024061725A1 EP 2023075262 W EP2023075262 W EP 2023075262W WO 2024061725 A1 WO2024061725 A1 WO 2024061725A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gas
- sampling
- station
- pump
- flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2226—Sampling from a closed space, e.g. food package, head space
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/10—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
- G01N35/1095—Devices for transferring samples or any liquids to, in, or from, the analysis apparatus, e.g. suction devices, injection devices for supplying the samples to flow-through analysers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N2015/0042—Investigating dispersion of solids
- G01N2015/0046—Investigating dispersion of solids in gas, e.g. smoke
Definitions
- the present invention relates to a station for measuring molecular contamination carried by air.
- the measuring station may be intended in particular for monitoring molecular contamination concentrations in the atmosphere of clean rooms, such as the clean rooms of semiconductor manufacturing plants.
- substrates such as semiconductor wafers or photomasks
- AMC air
- the substrates are contained in transport and atmospheric storage boxes, making it possible to transport the substrates from one piece of equipment to another or to store them between two manufacturing stages. Furthermore, transport boxes and equipment are arranged inside clean rooms in which the level of particles is minimized and the temperature, humidity and pressure are maintained at precise levels.
- the gaseous species carried by the air can have different sources and different natures, we find for example acids, bases, condensable elements, doping elements. These molecules can come from the air inside the semiconductor manufacturing plant or can be released in particular by semiconductor wafers having undergone prior manufacturing operations.
- Gas analyzers present in clean rooms make it possible to evaluate the concentration of gaseous species carried by the air at atmospheric pressure in real time, in particular that of humidity and some acids. These gas analyzers measure the surrounding gaseous atmosphere, it is generally necessary to provide a gas analyzer in each area to be tested in the clean room.
- a measurement unit has been proposed bringing together different analyzers. These analyzers are chosen based on the gas chemistry and the nature of the gas species to be measured.
- the measurement unit is equipped with several input ports, each addressing a particular test area of the clean room. As clean rooms can reach large sizes and the number of test areas is also increasing, it may be necessary to use a significant number of sampling lines. Sampling lines allow air to be routed from the test areas to the gas analyzers. The lengths of these lines most often reach several tens of meters, or even hundreds of meters.
- One solution consists of sucking a gas flow into all the sampling lines, usually one after the other. Simultaneous measurement of different gas chemistries can be carried out depending on the number of analyzers present. Each analyzer being independent of each other, the suction flow can be different in the sampling lines.
- sampling lines can be very long, in particular several hundred meters, a depression can be observed at the inlet of the gas analyzers.
- the sampling lines generally have a small diameter, particularly around a quarter of an inch (6.35mm), acting as a restriction to the passage of the gas flow.
- the depression is also partly linked to the flow drained by the analyzers.
- One solution could be to increase the diameter of the sampling lines in order to increase the conductance and thus limit the resulting depression.
- this solution causes an increase in the internal surfaces of the lines capable of adsorbing gas.
- These sampling lines can subsequently release part of the gaseous species conveyed, risking complicating the interpretation to be given to the measurement results.
- It may in particular be a material enriched in fluorine, such as a fluoropolymer, for example perfluoroalkoxy, known by the acronym PF A, or even polytetrafluoroethylene, known by the acronym PTFE.
- conditioning of the sampling lines is generally provided before a new measurement to eliminate the memory effect of the lines in certain applications, in particular when the gaseous species to be monitored are particularly adhering to the walls.
- the increase in diameter has the effect of extending the degassing time and consequently the conditioning time per sampling line.
- Another solution could be to reduce the length of the sampling lines, for example to a few tens of meters, or to limit the number of gas analyzers.
- Such solutions are of only very limited interest.
- One of the aims of the present invention is to propose a measuring station which at least partially resolves one or more of the aforementioned drawbacks.
- the subject of the invention is a station for measuring molecular contamination carried by air comprising at least one gas analyzer and at least one sampling line fluidly connected to an inlet of at least F a gas analyzer.
- said station comprises at least one sampling pump arranged upstream of the at least one gas analyzer according to the direction of flow of a gas flow to be pumped.
- the sampling pump has a suction fluidly connected to the at least one sampling line and a discharge fluidly connected to the inlet of the at least one gas analyzer.
- the sampling pump is configured to suck up the gas flow on the at least one sampling line, and to discharge the gas flow at atmospheric pressure +/-50hPa, that is to say +/-50mbars.
- the sampling pump is configured to discharge the gas flow at atmospheric pressure +/-30hPa, that is to say +/-30mbars.
- Such a sampling pump upstream of the at least one gas analyzer makes it possible to drain the gas flow to the inlet of the gas analyzer, by discharging the gas flow at atmospheric pressure or around this, thus limiting the risk of a pressure variation at the inlet of the gas analyzer.
- This makes it possible to use any type of technology for the analyzer or several gas analyzers, without constraints on the number of gas analyzers.
- Said station may also include one or more of the following characteristics described below, taken separately or in combination.
- One or more elements upstream of the gas analyzer(s) may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- the sampling pump may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- the at least one sampling line may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- Said station may comprise at least one buffer volume arranged downstream of the sampling pump and upstream of the at least one gas analyzer, depending on the direction of flow of the gas flow to be pumped.
- the buffer volume can be between 60cm 3 , i.e. 60mL, and 1dm 3 , i.e. IL.
- the buffer volume can be made with a generally cylindrical shape.
- the buffer volume may have an internal surface made of a fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- a fluoropolymer such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- Said station may include at least one pressure gauge.
- the pressure gauge can be arranged downstream of the sampling pump.
- the pressure gauge can be arranged downstream of the buffer volume depending on the direction of flow of the gas flow to be pumped.
- the pressure gauge can be arranged upstream of the sampling pump.
- the pressure gauge may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- the at least one gas analyzer is configured to operate at atmospheric pressure or substantially at atmospheric pressure.
- the sampling pump can be a membrane pump.
- the at least one gas analyzer may include an internal pump.
- the internal pump can be a membrane pump.
- Said station may include at least two sampling lines fluidly connected to a common suction line.
- At least one of the lines may have a minimum length, for example at least 50m.
- the common suction line can be fluidly connected to the suction of the sampling pump.
- the common suction line may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- Said station comprises for example at least one valve configured to selectively allow fluid communication or fluid isolation between the sampling pump and at least one of the sampling lines.
- the at least one valve is for example a controllable valve.
- the at least one valve may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- Said station may include a control unit configured to control the at least one controllable valve.
- the sampling pump can be arranged upstream of at least two gas analyzers. The discharge of the sampling pump is fluidly connected to the inlet of the gas analyzers by a common discharge line.
- the gas analyzers can be connected to the common delivery line.
- the gas analyzers can be connected in parallel.
- the common discharge line can be fluidly connected to an evacuation.
- the common discharge line may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- Said station may include at least one flow meter.
- the flow meter can be arranged on the common delivery line downstream of the gas analyzers depending on the direction of flow of the gas flow to be pumped. It is configured to measure the flow rate of the gas flow on the common discharge line.
- Said station may include at least one restriction upstream of the sampling pump depending on the direction of flow of the gas flow to be pumped.
- the restriction may have a variable opening.
- the opening of the restriction can be configured to be controlled based on a pressure measured by the pressure gauge fluidly connected to the discharge of the sampling pump.
- the restriction can be achieved by at least one flow regulator, such as an adjustable screw flow regulator.
- the restriction can be achieved by at least one calibrated orifice.
- the restriction may have an internal surface made of fluoropolymer, such as perfluoroalkoxy or polytetrafluoroethylene or a perfluoroelastomer.
- FIG. 1 represents a schematic view of an exemplary embodiment of a station for measuring molecular contamination carried by the air.
- certain elements can be indexed, for example first element or second element. In this case, it is a simple indexing to differentiate and name close but not identical elements. This indexing does not imply a priority of one element over another and such denominations can easily be interchanged without departing from the scope of the present invention. This indexing does not imply an order in time either.
- upstream is meant an element which is placed before another with respect to the direction of circulation of the gas or gas flow to be pumped.
- downstream means an element placed after another in relation to the direction of circulation of the gas or gas flow to be pumped.
- Figure 1 shows an example of a measuring station 1 for molecular contamination carried by the air.
- the measuring station 1 may be intended in particular for monitoring molecular contamination concentrations in the atmosphere of clean rooms, such as the clean rooms of semiconductor manufacturing factories.
- the measuring station 1 comprises a predefined number of gas analyzers 3, one or more Ll-Ln sampling lines and at least one sampling pump 5.
- a gas analyzer 3 makes it possible to measure the concentration of at least one gaseous species.
- the gaseous species measured is for example an acid, such as hydrofluoric acid, of formula HF, or hydrochloric acid, of formula HCl.
- the gaseous species measured is a volatile organic compound with the acronym COV or VOC in English, or ammonia, with the formula NH3 or an amine.
- the gaseous species measured can also be sulfur dioxide of formula SO2, or a sulfur compound, or ozone of formula O3, or even nitrogen oxide, of formula NO water vapor, or at least one doping agent.
- the gas analyzer 3 can be adapted for measuring a distinct gas species or a group of distinct gas species.
- the measurement can be done in real time, that is to say with a measurement duration of less than a few seconds, or even a few minutes.
- the measurement can alternatively be carried out with a longer measurement duration, for example several tens of minutes or even hours.
- the measurement can be done at low concentrations lower than parts per million (ppm) or parts per billion (ppb).
- the analyzer or each gas analyzer 3 may include an internal pump 7 for taking a gas sample. This may be an internal diaphragm pump.
- Two gas analyzers 3 are represented in the illustrative example of Figure 1. Of course, this number is not limiting.
- the gas analyzers 3 are configured to operate at atmospheric pressure, or substantially at atmospheric pressure.
- the operating pressure ranges of gas analyzers are linked to their technologies.
- the gas analyzers 3 are chosen according to the gas chemistry to be measured, and advantageously other criteria, such as response time, reliability, as well as the operating pressure range.
- the gas analyzer(s) 3 can use a technology chosen from laser spectroscopy, optical cavity spectroscopy known by the English acronym CRDS for “Cavity Ring Down Spectroscopy”, mass spectrometry, spectrometry mass by proton transfer reaction (English acronym PTR for “Proton Transfer Reaction”), an ion mobility spectrometry known by the English acronym IMS for “Ion Mobility Spectrometry”, an electrochemical technology, a colorimetric technology, a spectroscopy fluorescence particularly in the ultraviolet (UV) range, flame ionization detection (FID for “Flame Ionization Detection”), chemiluminescence technology, resistive technology, or even a contamination trapping system for analysis subsequent external.
- each Ll-Ln sampling line is intended to open into a test zone at ambient pressure, that is to say atmospheric pressure.
- the Ll-Ln sampling lines connect the measuring station 1 to distinct test zones, for example in a separate location in a clean room. Several Ll-Ln sampling lines can lead to separate locations.
- the length of the Ll-Ln sampling lines can vary between the different test zones to be joined and can be a few meters or several tens of meters, such as more than 200m. At least one of the Ll-Ln lines may have a minimum length, for example at least 50m.
- the sampling pump 5 also called drainage pump, is arranged upstream of the gas analyzer or analyzers 3 depending on the direction of flow of the gas flow to be pumped. This is, for example, a diaphragm pump.
- the sampling pump 5 has suction and delivery.
- the suction of the sampling pump 5 is fluidly connected to at least one sampling line Ll-Ln.
- the suction of the sampling pump 5 is fluidly connected to several sampling lines Ll-Ln via a common suction line La.
- One or more valves V can be arranged to selectively allow fluid communication or fluid isolation between one of the sampling lines Ll-Ln and the sampling pump 5.
- a valve V can be arranged on each sampling line Ll-Ln.
- One or more valves V can be controllable valves, for example solenoid valves or pneumatic valves. They can be controlled in all or nothing (open or closed). Alternatively or in addition, one or more valves may be three-way valves.
- the measuring station 1 may also include a control unit C connected to the controllable valves V.
- the control unit C is configured to control the control, for example the opening or closing of the valves V, to allow fluid communication or fluid isolation between the Ll-Ln sampling line or lines and the pump 5 sampling.
- the delivery of the sampling pump 5 is fluidly connected to the inlet of the gas analyzer or analyzers 3.
- the sampling pump 5 and the gas analyzers gas 3 can thus be placed in fluid communication with the line or one of the Ll-Ln sampling lines.
- sampling pump 5 When the sampling pump 5 is arranged upstream of several gas analyzers 3, two in the example shown schematically in Figure 1, these gas analyzers 3 are connected in bypass, that is to say in parallel .
- the gas analyzers 3 are connected to a common pipe.
- This common pipe is fluidly connected to the discharge of the sampling pump 5 and is subsequently named common discharge line Lr.
- the inlet of the gas analyzers 3 is thus fluidly connected to the discharge of the sampling pump 5 via the common discharge line Lr.
- This common delivery line Lr can also open for example into a gas reprocessing system or be fluidly connected to an evacuation or an exhaust pipe opening for example into such a gas reprocessing system. This makes it possible to evacuate an excess of gaseous chemistry sucked up by the sampling pump 5.
- the sampling pump 5 is configured to suck a gas flow onto the sampling line Ll-Ln.
- the sampling pump 5 can have a pumping capacity greater than that of the internal pumps 7 of the gas analyzers.
- an internal pump 7 can have a flow rate of between 0.2L/min and 6L/min, that is to say between 3.3.10' 6 m 3 /s and 0.1.10' 3 m 3 /s.
- the sampling pump 5 upstream of the gas analyzer or analyzers 3 can have a flow rate of between 4L/min and 20L/min, that is to say between 6.67.10' 5 m 3 /s and 0 ,3.10' 3 m 3 /s.
- the sampling pump 5 is also configured to discharge the gas flow at atmospheric pressure or around atmospheric pressure, that is to say at atmospheric pressure +/-50hPa, i.e. +/-50mbars, and preferably +/-30hPa, or +/-30mbars.
- the gas to be analyzed can thus be taken from the Ll-Ln sampling lines, by such a pump 5.
- the gas analyzers 3 can sample with their internal pumps 7 a gas flow at the discharge of the sampling pump 5.
- the sampling pump 5 makes it possible to suck up and drain a gas flow to the gas analyzers 3 to be analyzed.
- the gas delivered by the sampling pump 5, at the inlet of the gas analyzers 3 is at the atmospheric pressure or substantially at atmospheric pressure.
- the gas analyzers 3 thus work within their operating pressure ranges and can sample the necessary gas flow, without variation or with a low variation in pressure (in particular less than 50mbars or 30mbars) relative to the atmospheric pressure, at the inlet gas analyzers 3.
- At least one pressure gauge 8 can be provided.
- the pressure gauge 8 can be arranged downstream of the sampling pump 5, being fluidly connected to the outlet of the sampling pump 5. According to a variant not shown, a pressure gauge can be arranged upstream of the sampling pump 5.
- At least one buffer volume 9 can be arranged downstream of the sampling pump 5, or even of the pressure gauge 8.
- the buffer volume 9 is also arranged upstream of the gas analyzer(s) 3, according to the direction of flow of the gas flow to be pumped.
- the buffer volume 9 is for example between 60cm 3 and 1dm 3 , that is to say between 60mL and IL.
- the buffer volume 9 is for example made of a generally cylindrical shape.
- Such a buffer volume 9 downstream of the sampling pump 5 makes it possible to limit the pressure oscillations that could be caused by the use of the sampling pump 5, such as a membrane pump, in terms of the stability of the signal of concentrations measured by the gas analyzer or analyzers 3.
- the signal is very low in noise.
- the pressure gauge 8 can be arranged downstream of this buffer volume 9 according to the direction of flow of the gas flow to be pumped.
- the pressure gauge 8 makes it possible to measure the pressure at the outlet of the buffer volume 9 and thus monitor the oscillation of the pressure variations in order to ensure that the gas flow supplied to the analyzers 3 is laminar.
- At least one restriction 11 can be provided upstream of the sampling pump 5 depending on the direction of flow of the gas flow to be pumped. This makes it possible to limit the gas flow which can be sucked in by the sampling pump 5. In other words, restriction 11 makes it possible to minimize, if necessary, the efficiency of the sampling pump 5. It makes it possible to adjust the suction power of the sampling pump 5 and thus adapt the overall gas flow presented to the gas analyzers 3.
- the use of a restriction 11 makes it possible to lower the pressure at the inlet of the sampling pump 5, which makes it possible to optimize the pressure differential between the inlet and the outlet of the sampling pump 5 in order to best match its regime Operating.
- limiting the flow of air entering the sampling pump 5 makes it possible to reduce the quantity of air to be compressed and thus reduce heating of the sampling pump 5.
- restriction 11 can be chosen in particular as a function of the power of the sampling pump 5, its liters, and the number of gas analyzers 3.
- restriction 11 can be configured to limit the flow rate between 4L/min and 8L/min.
- the restriction 11 can have a variable opening for the flow of the gas flow.
- the opening of the restriction 11 can be controlled as a function of a pressure measured by the pressure gauge 8 fluidly connected to the discharge of the sampling pump 5.
- Restriction 11 can be achieved in particular by an adjustable screw flow regulator.
- the restriction 11 can for example be produced in the form of a calibrated orifice. This calibrated orifice is connected to the suction of sampling pump 5.
- One or more of the elements or components of the measuring station 1 upstream of the gas analyzer or analyzers 3 advantageously have internal surfaces intended to be in contact with the gases, made of one or more materials limiting the adhesion of gaseous species, such as one or more fluoropolymer materials, such as perfluoroalkoxy (PF A) or polytetrafluoroethylene (PTFE), or even a perfluoroelastomer known by the English acronym FFKM.
- PF A perfluoroalkoxy
- PTFE polytetrafluoroethylene
- FFKM perfluoroelastomer
- the sampling pump 5 and/or the sampling line(s) Ll-Ln and/or the common suction line La and/or the common discharge line Lr and/or the valves V and/or the volume buffer 9 and/or restriction 11 have such internal surfaces as materials limiting the adhesion of gaseous species, such as one or more fluoropolymer materials.
- this membrane is advantageously also made of fluoropolymer material.
- the measuring station 1 may include at least one flow meter (not shown).
- the flow meter can be arranged downstream of the gas analyzer or analyzers 3 depending on the direction of flow of the gas flow to be pumped.
- the flow meter is arranged on the common delivery line Lr downstream of the gas analyzers 3.
- the flow meter is arranged on the common delivery line Lr downstream of the gas analyzers 3.
- Another solution could be to arrange the flow meter upstream of all the gas analyzers 3.
- the advantage of arranging the flow meter on the common delivery line Lr, downstream of the gas analyzers 3 is that it is not necessary for its internal surfaces to be made of one or more fluorine-enriched materials such as fluoropolymers.
- the flow meter is configured to measure the flow rate of the gas flow on the common delivery line Lr. This makes it possible to monitor and detect a possible failure of a gas analyzer 3 or even clogging or obstruction. For example, depending on the flow rate of the sampling pump 5, the number of gas analyzers 3 and the flow rate of each internal pump 7, the excess gas flow intended to be measured by the downstream flow meter can be determined. of all the gas analyzers 3, and in the event of a difference, in particular excess excess, a failure of one of the gas analyzers 3 can be identified.
- the sampling pump 5 is placed in communication with the sampling line or an Ll-Ln sampling line at the same time when there are several, and the analyzer or each gas analyzer 3 at the same time. discharge of this sampling pump 5, can take a gas sample to carry out a measurement.
- the sampling pump 5 provides a function of draining the contaminated gas flow to be analyzed up to the inlet of the gas analyzer or analyzers 3. What whether the length or the diameter of the sampling line Ll-Ln or of the common suction line La, before the sampling pump 5, the discharge of the latter is at atmospheric pressure or substantially at atmospheric pressure. It is therefore the sampling pump 5 which observes a possible variation in pressure.
- the pressure observed is at atmospheric pressure +/-50mbars, preferably +/-30mbars, and is within the operating range of these gas analyzers 3. This allows the use of gas analyzers 3 even if they are sensitive to a pressure variation.
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- Analytical Chemistry (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020257010764A KR20250069570A (ko) | 2022-09-20 | 2023-09-14 | 공기중 분자 오염 측정 스테이션 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FRFR2209475 | 2022-09-20 | ||
| FR2209475A FR3139905B1 (fr) | 2022-09-20 | 2022-09-20 | Station de mesure d’une contamination moléculaire véhiculée par l’air |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2024061725A1 true WO2024061725A1 (fr) | 2024-03-28 |
Family
ID=84568927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2023/075262 Ceased WO2024061725A1 (fr) | 2022-09-20 | 2023-09-14 | Station de mesure d'une contamination moléculaire véhiculée par l'air |
Country Status (4)
| Country | Link |
|---|---|
| KR (1) | KR20250069570A (fr) |
| FR (1) | FR3139905B1 (fr) |
| TW (1) | TW202430855A (fr) |
| WO (1) | WO2024061725A1 (fr) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01291142A (ja) * | 1988-05-18 | 1989-11-22 | Hitachi Plant Eng & Constr Co Ltd | クリーンルームの汚染監視装置 |
| JP2002277361A (ja) * | 2001-03-19 | 2002-09-25 | Horiba Ltd | 半導体プロセス排ガスの分析方法および半導体プロセス排ガスの分析システム |
| JP2005331309A (ja) * | 2004-05-19 | 2005-12-02 | Taiyo Nippon Sanso Corp | 排気ガス測定装置 |
| JP4925489B1 (ja) * | 2011-08-02 | 2012-04-25 | 株式会社ベスト測器 | ガス分析装置 |
| US20140290340A1 (en) * | 2011-09-06 | 2014-10-02 | Atonarp Inc. | Gas sampling apparatus and monitoring apparatus |
| KR101782915B1 (ko) * | 2017-03-08 | 2017-09-29 | 주식회사 위드텍 | 개선된 샘플링 유로를 갖는 가스 모니터링 시스템 |
| US10431484B2 (en) * | 2015-09-02 | 2019-10-01 | Pfeiffer Vacuum | Method and station for measuring the contamination of a transport box for the atmospheric conveyance and storage of substrates |
| WO2021198107A1 (fr) * | 2020-04-01 | 2021-10-07 | Pfeiffer Vacuum | Station et procédé de mesure de la contamination moléculaire par voie aérienne |
| WO2022057383A1 (fr) * | 2020-09-16 | 2022-03-24 | 长鑫存储技术有限公司 | Système de surveillance environnementale |
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2022
- 2022-09-20 FR FR2209475A patent/FR3139905B1/fr active Active
-
2023
- 2023-09-14 KR KR1020257010764A patent/KR20250069570A/ko active Pending
- 2023-09-14 WO PCT/EP2023/075262 patent/WO2024061725A1/fr not_active Ceased
- 2023-09-19 TW TW112135614A patent/TW202430855A/zh unknown
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01291142A (ja) * | 1988-05-18 | 1989-11-22 | Hitachi Plant Eng & Constr Co Ltd | クリーンルームの汚染監視装置 |
| JP2002277361A (ja) * | 2001-03-19 | 2002-09-25 | Horiba Ltd | 半導体プロセス排ガスの分析方法および半導体プロセス排ガスの分析システム |
| JP2005331309A (ja) * | 2004-05-19 | 2005-12-02 | Taiyo Nippon Sanso Corp | 排気ガス測定装置 |
| JP4925489B1 (ja) * | 2011-08-02 | 2012-04-25 | 株式会社ベスト測器 | ガス分析装置 |
| US20140290340A1 (en) * | 2011-09-06 | 2014-10-02 | Atonarp Inc. | Gas sampling apparatus and monitoring apparatus |
| US10431484B2 (en) * | 2015-09-02 | 2019-10-01 | Pfeiffer Vacuum | Method and station for measuring the contamination of a transport box for the atmospheric conveyance and storage of substrates |
| KR101782915B1 (ko) * | 2017-03-08 | 2017-09-29 | 주식회사 위드텍 | 개선된 샘플링 유로를 갖는 가스 모니터링 시스템 |
| WO2021198107A1 (fr) * | 2020-04-01 | 2021-10-07 | Pfeiffer Vacuum | Station et procédé de mesure de la contamination moléculaire par voie aérienne |
| WO2022057383A1 (fr) * | 2020-09-16 | 2022-03-24 | 长鑫存储技术有限公司 | Système de surveillance environnementale |
Also Published As
| Publication number | Publication date |
|---|---|
| FR3139905A1 (fr) | 2024-03-22 |
| FR3139905B1 (fr) | 2024-11-15 |
| KR20250069570A (ko) | 2025-05-19 |
| TW202430855A (zh) | 2024-08-01 |
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