JP6929566B2 - 流量測定方法および流量測定装置 - Google Patents
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- 238000000034 method Methods 0.000 title claims description 55
- 238000011144 upstream manufacturing Methods 0.000 claims description 18
- 239000007789 gas Substances 0.000 description 149
- 238000005259 measurement Methods 0.000 description 25
- 239000012530 fluid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009530 blood pressure measurement Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
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- 230000000052 comparative effect Effects 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
- G01F1/34—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by measuring pressure or differential pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
- G01F3/36—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement
- G01F3/38—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with stationary measuring chambers having constant volume during measurement having only one measuring chamber
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/005—Valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/10—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters
- G01F25/15—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of flowmeters specially adapted for gas meters
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
- G05D7/0641—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means using a plurality of throttling means
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D7/00—Control of flow
- G05D7/06—Control of flow characterised by the use of electric means
- G05D7/0617—Control of flow characterised by the use of electric means specially adapted for fluid materials
- G05D7/0629—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means
- G05D7/0635—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means
- G05D7/0641—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means using a plurality of throttling means
- G05D7/0658—Control of flow characterised by the use of electric means specially adapted for fluid materials characterised by the type of regulator means by action on throttling means using a plurality of throttling means the plurality of throttling means being arranged for the control of a single flow from a plurality of converging flows
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
-
- 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
- H01L21/67248—Temperature monitoring
-
- 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
-
- 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
- H01L21/67276—Production flow monitoring, e.g. for increasing throughput
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Automation & Control Theory (AREA)
- Measuring Volume Flow (AREA)
- Flow Control (AREA)
Description
2 プロセスチャンバ
3 真空ポンプ
4 ガス供給源
10 流量制御装置
11 絞り部
12 圧力センサ
13 温度センサ
14 制御バルブ
15 駆動部
16 制御回路
20 基準容量(ビルドアップ容量)
21 第1バルブ
22 第2バルブ
23 圧力センサ
24 温度センサ
25 演算制御装置
30 流量測定装置
Claims (7)
- 流量制御装置およびその下流側の第1バルブを備えた複数のガス供給路と、
前記複数のガス供給路の下流側において前記複数のガス供給路が合流して形成された共通ガス供給路であって、圧力センサ、温度センサおよびその下流側の第2バルブを有する流量測定装置を備えた共通ガス供給路と
を有するガス供給システムにおいて行われる、流量測定方法であって、
何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記第2バルブを閉じ、前記第2バルブを閉じた後、所定時間経過後に前記何れか一つの第1バルブを閉じ、前記第1バルブを閉じた後の圧力および温度を前記圧力センサおよび前記温度センサを用いて測定する第1工程と、
前記何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記何れか一つの第1バルブおよび前記第2バルブを同時に閉じ、前記第1バルブおよび前記第2バルブを閉じた後の圧力および温度を前記圧力センサおよび前記温度センサを用いて測定する第2工程と、
前記第1工程で測定した圧力および温度と、前記第2工程で測定した圧力および温度とに基づいて流量を演算する第3工程と
を包含する、流量測定方法。 - 前記第3工程は、前記第1工程で測定した圧力P1および温度T1と、前記第2工程で測定した圧力Pcおよび温度Tcとを用いて、Q=22.4・Vs・(P1/T1−Pc/Tc)/(R・Δt)(ここで、Vsはビルドアップ容量、Rは気体定数、Δtは前記第1工程において前記第2バルブを閉じてから前記第1バルブを閉じるまでの前記所定時間)に従って流量Qを演算する工程を含む、請求項1に記載の流量測定方法。
- 流量制御装置およびその下流側の第1バルブを備えた複数のガス供給路と、
前記複数のガス供給路の下流側において前記複数のガス供給路が合流して形成された共通ガス供給路であって、圧力センサ、温度センサおよびその下流側の第2バルブを有する流量測定装置を備えた共通ガス供給路と
を有するガス供給システムにおいて行われる、流量測定方法であって、
何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記第2バルブを閉じ、前記第2バルブを閉じた後、第1の所定時間が経過後に前記何れか一つの第1バルブを閉じ、前記第1バルブを閉じた後の圧力および温度を前記圧力センサおよび前記温度センサを用いて測定する第1工程と、
前記何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記第2バルブを閉じ、前記第2バルブを閉じた後、前記第1の所定時間よりも短い第2の所定時間が経過後に前記何れか一つの第1バルブを閉じ、前記第1バルブを閉じた後の圧力および温度を前記圧力センサおよび前記温度センサを用いて測定する第2工程と、
前記第1工程で測定した圧力および温度と、前記第2工程で測定した圧力および温度とに基づいて流量を演算する第3工程と
を包含する、流量測定方法。 - 前記複数のガス供給路は、第1のガス供給ラインまたは第2のガス供給ラインのいずれかに接続されており、
前記第1のガス供給ラインおよび前記第2のガス供給ラインが合流して前記共通ガス供給路に接続されている、請求項1から3のいずれかに記載の流量測定方法。 - 前記複数のガス供給路のうち少なくとも一つのガス供給路が、他のガス供給路とは異なる配管径を持つ、請求項1から4のいずれかに記載の流量測定方法。
- 前記流量制御装置は、コントロール弁と、絞り部と、前記絞り部の上流側の圧力を測定する圧力センサとを含む圧力式流量制御装置である、請求項1から5のいずれかに記載の流量測定方法。
- 流量制御装置およびその下流側の第1バルブを備えた複数のガス供給路と、前記複数のガス供給路の下流側において前記複数のガス供給路が合流して形成された共通ガス供給路とを備えるガス供給システムにおいて、前記共通ガス供給路に接続される流量測定装置であって、
前記共通ガス供給路に対して設けられた圧力センサおよび温度センサと、前記圧力センサおよび温度センサの下流側に設けられた第2バルブと、前記圧力センサおよび前記温度センサの出力を受け取る演算制御装置とを備え、
前記演算制御装置は、
何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記第2バルブを閉じ、前記第2バルブを閉じた後、所定時間経過後に前記何れか一つの第1バルブを閉じ、前記第1バルブを閉じた後の圧力および温度を、第1圧力および第1温度として、前記圧力センサおよび前記温度センサから受け取り、
前記何れか一つの第1バルブと前記第2バルブとを開いてガスを流し、ガスが流れている状態で前記何れか一つの第1バルブおよび前記第2バルブを同時に閉じ、前記第1バルブおよび前記第2バルブを閉じた後の圧力および温度を、第2圧力および第2温度として、前記圧力センサおよび前記温度センサから受け取り、
前記第1圧力、前記第1温度、前記第2圧力、および、前記第2温度に基づいて、流量を演算する、流量測定装置。
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JP2017023575 | 2017-02-10 | ||
JP2017023575 | 2017-02-10 | ||
PCT/JP2018/004325 WO2018147354A1 (ja) | 2017-02-10 | 2018-02-08 | 流量測定方法および流量測定装置 |
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US (1) | US11326921B2 (ja) |
JP (1) | JP6929566B2 (ja) |
KR (1) | KR102162046B1 (ja) |
CN (1) | CN110234965B (ja) |
TW (1) | TWI661180B (ja) |
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WO2020026784A1 (ja) | 2018-07-30 | 2020-02-06 | 株式会社フジキン | 流量制御システム及び流量測定方法 |
JP2020139864A (ja) * | 2019-02-28 | 2020-09-03 | 株式会社堀場エステック | 流量算出システム、流量算出システム用プログラム、流量算出方法、及び、流量算出装置 |
WO2020234846A1 (en) * | 2019-05-23 | 2020-11-26 | Jasic Technology Europe S.R.L. | Improved method for adjusting a gas flow and system using said improved flow adjustment method |
KR102415531B1 (ko) * | 2020-06-30 | 2022-07-01 | 자인주식회사 | 산소 공급 시스템 |
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- 2018-02-08 US US16/483,518 patent/US11326921B2/en active Active
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US11326921B2 (en) | 2022-05-10 |
CN110234965B (zh) | 2020-10-27 |
TW201837432A (zh) | 2018-10-16 |
JPWO2018147354A1 (ja) | 2019-12-12 |
TWI661180B (zh) | 2019-06-01 |
US20200011720A1 (en) | 2020-01-09 |
KR20190102241A (ko) | 2019-09-03 |
CN110234965A (zh) | 2019-09-13 |
WO2018147354A1 (ja) | 2018-08-16 |
KR102162046B1 (ko) | 2020-10-06 |
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