WO2020085033A1 - 流体供給システム、流体制御装置、及び半導体製造装置 - Google Patents
流体供給システム、流体制御装置、及び半導体製造装置 Download PDFInfo
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- WO2020085033A1 WO2020085033A1 PCT/JP2019/039160 JP2019039160W WO2020085033A1 WO 2020085033 A1 WO2020085033 A1 WO 2020085033A1 JP 2019039160 W JP2019039160 W JP 2019039160W WO 2020085033 A1 WO2020085033 A1 WO 2020085033A1
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- WIPO (PCT)
- Prior art keywords
- fluid
- control device
- fluid control
- arrangement direction
- supply system
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
- F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/003—Housing formed from a plurality of the same valve elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/02—Construction of housing; Use of materials therefor of lift valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L41/00—Branching pipes; Joining pipes to walls
- F16L41/02—Branch units, e.g. made in one piece, welded, riveted
- F16L41/03—Branch units, e.g. made in one piece, welded, riveted comprising junction pieces for four or more pipe members
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67017—Apparatus for fluid treatment
Definitions
- the present invention relates to a fluid supply system, a fluid control device, and a semiconductor manufacturing device.
- Patent Document 1 discloses a fluid supply system in which a plurality of fluid lines in which fluid control devices and joints are connected in series by piping are arranged in parallel. Such a fluid supply system is configured by integrating and arranging a plurality of fluid control devices, and realizes miniaturization of a fluid control device (gas box) having the fluid supply system housed in a housing.
- the surface width of the fluid control device in the arrangement direction of the fluid lines is made small (for example, about 1/3 of the conventional one), and the arrangement of these in the parallel direction is made. It is necessary to reduce the pitch width and densely integrate.
- the joint requires a certain amount of thickness in order to secure the strength of the torque applying portion that is rotated and fastened by a tool such as a spanner, and there is a limit to reducing the thickness. Therefore, in the densely integrated piping structure, it is necessary to secure a working space for performing the joint fastening work, which hinders further downsizing of the fluid supply system and the fluid control device.
- a processing gas (fluid) that has passed through a gas box is supplied to a chamber for performing processing.
- ALD Atomic Layer Deposition method
- a processing gas at a minute flow rate must be rapidly and highly accurately supplied to a chamber. That is, it is required to further improve the responsiveness and controllability of the treatment process of the ALD method.
- the present invention has been made in view of such problems, and an object thereof is to further reduce the size of a fluid supply system and a size of a fluid control device while securing a construction space in a piping structure.
- ALD method is intended to provide a semiconductor manufacturing apparatus which realizes further improvement of response and controllability.
- the fluid supply system is a fluid supply system in which a plurality of fluid lines in which a fluid control device and a joint are connected in series by piping are arranged in parallel, and each fluid line is a plane including these arrangement directions. When viewed, it is linearly extended in the extending direction substantially orthogonal to the arrangement direction, each fluid control device is arranged side by side in the arrangement direction with the connection surface to which the pipes are connected facing the same direction, The diameter of the pipe is equal to or smaller than the surface width in the arrangement direction of the connection surface, the diameter of the joint is equal to or larger than the surface width in the arrangement direction of the connection surface, and each pipe adjacent to the arrangement direction has a joint in the extending direction. It is located in a displaced position.
- one of the pipes adjacent to the arrangement direction has a joint.
- the bent portions are located at positions displaced from each other in the intersecting direction.
- the joint is a first joint member, a second joint member screwed to the first joint member, and a second joint member screwed to the first joint member.
- the fluid control device has the above-described fluid supply system housed in a housing.
- a semiconductor manufacturing apparatus includes the above-mentioned fluid control device, a pipe extending from the fluid control device is connected to the chamber, which processes a fluid supplied from the fluid control device, and a fluid control device.
- An opening / closing valve that is provided in a pipe between the chamber and the chamber and controls the flow rate of the fluid supplied from the fluid control device to the chamber is further included.
- a more compact fluid supply system a more compact fluid control device, and a greater responsiveness of the treatment process of the ALD method while securing a construction space in a piping structure are provided.
- a semiconductor manufacturing apparatus with improved controllability can be provided.
- FIG. 4 is a block diagram showing a part of a conventional semiconductor manufacturing apparatus and a part of the semiconductor manufacturing apparatus of the present embodiment (b) for comparison. It is the top view which looked at the conventional piping structure formed from the conventional piping from the crossing direction.
- FIG. 1 shows a perspective view of a fluid supply system 1.
- the fluid supply system 1 is configured by arranging a plurality of fluid lines 8 in parallel in which a fluid control device 2 and a joint 4 are connected in series by pipes 6a and 6b (hereinafter, may be representatively referred to as pipe 6). ing.
- the fluid line 8 is extended in the extending direction X and arranged in the arranging direction Y, and it is defined that the intersecting direction Z is substantially orthogonal to both the extending direction X and the arranging direction Y.
- the fluid control device 2 is, for example, a mass flow controller or a pressure control type flow rate controller, and the main body of the fluid control device 2 is fixed to the base block 10.
- a connection surface 2a to which a pipe 6a on the fluid inlet side of the fluid control device 2 is connected by screwing or the like and a pipe 6a on the fluid outlet side of the fluid control device 2 are connected to the base block 10 by screwing or the like.
- Connection surface 2b is formed.
- the fluid flowing from the pipe 6a into the fluid control device 2 is flow-controlled by the fluid control device 2 and then flows out to the pipe 6b through a flow path (not shown) in the base block 10.
- a flow path (not shown) in the base block 10.
- other fluid control devices such as an on-off valve and a regulator (not shown) may be fixed to the base block 10 as one of the fluid control devices 2 in one fluid line 8.
- the pipes 6a and 6b may be connected to the connection surfaces 2a and 2b formed on the body of the fluid control device 2, respectively. Further, a plurality of fluid control devices 2 and the joint 4 may be provided in one fluid line 8. Further, the base block 10 may be an integrated type base block in which a collecting channel is formed.
- FIG. 2 shows a front view of the fluid control device 12.
- the fluid control device 12 is one in which the fluid supply system 1 is housed in a housing 14 shown in cross section in FIG. 2.
- the fluid to be controlled is a gas
- the fluid box When the fluid to be controlled is a gas, it is called a so-called gas box and a large number of gas supply lines are provided. Is provided as the fluid line 8.
- devices related to fluid control such as an on-off valve and a regulator (not shown) are appropriately arranged, and each fluid line 8 is arranged at a position where they do not interfere with these devices.
- Each fluid line 8 is a plane including these arrangement directions Y (vertical direction in FIG. 2), that is, an extension direction X (right and left in FIG. 2) substantially orthogonal to the arrangement direction Y when viewed in the state of FIG. Direction) is extended linearly.
- the orthographic projection of each fluid line 8 in FIG. 2 appears to extend linearly in the extending direction X.
- the fluid control devices 2 are arranged side by side in the arrangement direction Y, with the connection surface 2a facing the same direction on the left side in FIG. 1, the connection surface 2b facing the same direction on the right side in FIG.
- FIG. 3 shows an enlarged plan view of the piping structure 16 of the fluid supply system 1.
- the diameter Dp of the pipe 6 is equal to or smaller than the surface width W of the connection surface 2 a of the fluid control device 2 in the arrangement direction Y. The same applies to the surface width W of the connection surface 2b.
- the connection surfaces 2a and 2b of the respective fluid control devices 2 are arranged in the same direction, and the diameter Dp of the pipe 6 is set to be equal to or less than the surface width W of the connection surfaces 2a and 2b.
- the pipes 6 can be linearly extended in the extension direction X within the range of the surface width W of the connection faces 2a and 2b, and the pipes 6 adjacent in the arrangement direction Y do not come into contact with each other.
- connection surface 2a of the fluid control device 2 has a surface width W that is about 1 ⁇ 3 of the conventional width.
- the pipes 6 are densely arranged in the arrangement direction Y such that the axis center C has a constant pitch width Wp in plan view.
- the surface width W is 10 mm and the pitch width Wp is 11 mm.
- the gap between the fluid control devices 2 adjacent to each other in the arrangement direction Y is 1 mm.
- the fluid supply system 1 of the present embodiment is further integrated and downsized as compared with the conventional one.
- FIG. 4 shows a side view of the piping structure 16 seen from the arrangement direction Y in FIG.
- the intersecting direction Z that is substantially orthogonal to both the arrangement direction Y and the extending direction X is defined
- one of the pipes 6 adjacent to the arrangement direction Y is The bent portions 18 are provided to position the joint 4 in positions displaced from each other in the intersecting direction Z.
- the bent portion 18 does not necessarily have to be formed by bending at right angles from the straight pipe portion of the pipe 6 along the intersecting direction Z, and the bent portion 18 can shift the joint 4 from each other in the intersecting direction Z. If so, the angle between the straight pipe portion of the pipe 6 and the bent portion 18 may be an acute angle or an obtuse angle.
- the joint 4 is a screw-in type pipe joint, and includes a male nut (first joint member) 20 that is a hexagon nut and a female nut (second joint member) 22 that is a hexagon nut. There is.
- the female nut 22 is formed with a torque applying portion 24 having a diagonal dimension Dd1.
- a rotational torque is applied to the female nut 22 by engaging and rotating a tool such as a spanner with the torque applying portion 24.
- the male nut 20 is formed with a fixed portion (torque imparting portion) 26 having a diagonal dimension Dd2.
- a tool such as a wrench is engaged with the fixing portion 26 to fix the male nut 20, whereby idling of the male nut 20 is prevented.
- the fixing portion 26 can also be treated as the torque applying portion 24. Therefore, hereinafter, the fixed portion 26 and the fixed portion 26 may be collectively referred to as the torque applying portion 24.
- the diameter of the joint 4, in particular, the diagonal dimension Dd1 of the torque applying portion 24 and the diagonal dimension Dd2 of the fixed portion 26 are equal to or larger than the surface width W of the connection surfaces 2a and 2b of the fluid control device 2.
- the joint 4 requires a certain amount of wall thickness in order to secure the strength of the torque applying portion 24 that is rotated and fastened with a tool such as a spanner, and there is a limit to reducing the wall thickness of the joint surface 2a, 2b. Therefore, a size larger than the width W is required.
- FIG. 5 is a perspective view when torque is applied to the torque applying portion 24 of the female nut 22 by the spanner 28 in the piping structure 16.
- the above-mentioned bent portion 18 is formed in the pipe 6 adjacent to the pipe 6 having the torque applying portion 24 with which the spanner 28 is engaged.
- the joint 4 can be positioned not only in the extending direction X but also in the intersecting direction Z. Therefore, despite the densely integrated piping structures 16 in the arrangement direction Y, a construction space is secured in the piping structure 16 in which the spanner 28 can be engaged with and rotated by the torque applying portion 24.
- FIG. 6 shows a cross-sectional view of the piping structure 16 as seen from the extension direction X.
- the spanner 28 can be engaged and rotated with respect to the torque applying portion 24, and in addition to the arrangement direction Y as well as the crossing direction Z.
- a densely integrated piping structure 16 can be formed. Therefore, the piping structure 16, the fluid supply system 1, and eventually the fluid control device 12 can be further downsized while enabling the joint 4 to be fastened.
- the fastening operation of the joint 4 is mainly performed in the torque applying portion 24, at least the torque applying portion 24 of the joint 4 is displaced from each other in both the extending direction X and the intersecting direction Z, not the entire joint 4. You may make it position in a position. As a result, it is possible to secure not only the entire joint 4 but only the construction space of the portion of the joint 4 that requires fastening work. Therefore, the piping structure 16, the fluid supply system 1, and eventually the fluid control device 12 can be further downsized.
- FIG. 7 is a block diagram showing a part of (a) a conventional semiconductor manufacturing apparatus 40 and (b) a semiconductor manufacturing apparatus 42 of the present embodiment and comparing them.
- a gas box 44 which is a fluid control device and a pipe 46 extended from the gas box 44 are connected to each other, and a gas supplied from the gas box 44 is supplied.
- the chamber 48 for processing the gas is provided with an opening / closing valve 50 which is provided in the pipe 46 between the gas box 44 and the chamber 48 and controls the flow rate of the gas supplied from the gas box 44 to the chamber 48.
- FIG. 8 shows a plan view of a conventional piping structure 52 formed from the conventional piping 46 as seen from the cross direction Z.
- the piping structure 52 is a fluid supply system in which a plurality of fluid lines 54 in which a fluid control device 2 having a surface width W and the same as the present embodiment and a joint 4 similar to the present embodiment are connected by piping 46 are arranged in parallel. 56 are configured.
- each fluid line 54 is greatly bent in the arrangement direction Y when viewed in the state of FIG. 8, that is, in a plane including the arrangement direction Y. That is, each fluid line 54 does not have a projection extending linearly in the extension direction X. This is because when the pipes 46 are linearly extended in the extension direction X, the joints 4 adjacent to each other in the arrangement direction Y come into contact with each other, so that each pipe 46 is enlarged in the arrangement direction Y in order to secure a construction space for the joint 4. It is due to being forced to bend.
- the joints 4 are separated from each other by bending and extending the respective pipes 46 in the arrangement direction Y greatly, and a construction space that enables the fastening work of the joints 4 is provided between the adjacent pipes 46. This is ensured only in the arrangement direction Y of.
- the semiconductor manufacturing apparatus 42 of the present embodiment has the above-described fluid control device 12 (hereinafter, also referred to as the gas box 12. The same is true for the illustration in FIG. 7B. ), The above-described pipe 6, a chamber 48 similar to the conventional one, and an opening / closing valve 50 similar to the conventional one are partially provided.
- the gas box 12 has each pipe 6 linearly extended in the extension direction X when viewed from the crossing direction Z in the pipe structure 16 of the fluid supply system 1.
- the width in the arrangement direction Y is smaller than that of the conventional gas box 44 by ⁇ H.
- the gas box 12 can be installed in a narrow space, and the distance of each pipe 6 from the conventional gas box 44 to the chamber 48 can be reduced by ⁇ L.
- the bent portion 18 is provided in either one of the pipes 6 adjacent in the arrangement direction Y and the crossing direction is provided. All you have to do is bend to Z. As a result, the number of bent portions in the fluid supply system 1 is reduced, and the length of each fluid line 8 can be made relatively shorter than that of each conventional fluid line 54.
- the switching frequency of the opening / closing valve 50 is significantly increased, and high-speed switching of the opening / closing valve 50 is required, and the fluid control by the opening / closing valve 50 is performed by precise pulse control.
- the pulse width for pulse control of the fluid can be made smaller than the conventional one, and the pulse shape is changed to the conventional one. It is possible to make the rectangle more precise compared to.
- the semiconductor manufacturing apparatus 42 of the present embodiment can supply the processing gas with a minute flow rate to the chamber 48 more quickly and with higher accuracy than in the conventional case, and further improve the response of the processing process of the ALD method. And controllability can be improved.
- the fluid supply system 1 is further downsized while securing the construction space in the piping structure 16 of the fluid supply system 1, and the fluid control including the fluid supply system 1 is further performed. It is possible to further reduce the size of the apparatus 12 and further improve the responsiveness and controllability of the processing process of the ALD method in the semiconductor manufacturing apparatus 42 including the fluid control apparatus 12.
- the fluid supply system 1 is widely applicable not only to a gas supply system but also to a fluid supply system that also includes a liquid
- the fluid control device 12 is not limited to a semiconductor manufacturing process such as the semiconductor manufacturing device 42, but can be various types. It can also be applied to the process.
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Abstract
Description
本態様に係る流体供給システムは、流体制御機器及び継手が直列に配管で接続された流体ラインを並列に複数配列した流体供給システムであって、各流体ラインは、これらの配列方向を含む平面で見たとき、配列方向と実質的に直交する延設方向に直線状に延設され、各流体制御機器は、配管が接続される接続面を同一方向に向けて配列方向に並んで配置され、配管の直径は、接続面の配列方向における面幅以下であり、継手の直径は、接続面の配列方向における面幅以上であり、配列方向に隣り合う各配管は、継手が延設方向に互いにずれた位置に位置付けられる。
また、本態様に係る前述した流体供給システムにおいて、継手は、第1継手部材と、第1継手部材に螺合される第2継手部材と、第1継手部材に対する第2継手部材の螺合に際して回転トルクが付与されるトルク付与部とを有し、配列方向と延設方向との双方と実質的に直交する交差方向を規定したとき、配列方向に隣り合う各配管は、継手の少なくともトルク付与部が延設方向と交差方向との双方に互いにずれた位置に位置付けられる。
一方、本態様に係る半導体製造装置は、前述した流体制御装置を備え、流体制御装置から延設された配管が接続され、流体制御装置から供給される流体を処理するチャンバと、流体制御装置とチャンバとの間の配管に設けられ、流体制御機器からチャンバに供給される流体の流量を制御する開閉バルブとをさらに備える。
図1は、流体供給システム1の斜視図を示す。流体供給システム1は、流体制御機器2及び継手4が直列に配管6a、6b(以下、代表して配管6と称することもある)で接続された流体ライン8を並列に複数配列して構成されている。なお、流体ライン8は延設方向Xに延設されるとともに配列方向Yに配列され、延設方向Xと配列方向Yとの双方と実質的に直交するのは交差方向Zであると規定して以降の各図面について説明する。
図4は、配管構造16を図3の配列方向Yから見た側面図を示す。
図5は、配管構造16においてメスナット22のトルク付与部24にスパナ28でトルクを付与するときの斜視図を示す。
図7(a)に示すように、従来の半導体製造装置40は、流体制御装置であるガスボックス44と、ガスボックス44から延設された配管46が接続され、ガスボックス44から供給されるガスを処理するチャンバ48と、ガスボックス44とチャンバ48との間の配管46に設けられ、ガスボックス44からチャンバ48に供給されるガスの流量を制御する開閉バルブ50とを備えている。
一方、図7(b)に示すように、本実施形態の半導体製造装置42は、前述した流体制御装置12(以下、ガスボックス12とも称する。図7(b)への図示も同様である。)、前述した配管6と、従来と同様のチャンバ48と、従来と同様の開閉バルブ50とを一部に備えている。
例えば、流体供給システム1は、ガス供給システムに限らず、液体も含む流体供給システムに広く適用可能であり、また、流体制御装置12は半導体製造装置42等の半導体製造プロセスに限らず、種々のプロセスに適用することも可能である。
2 流体制御機器
2a、2b 接続面
4 継手
6、6a、6b 配管
8 流体ライン
12 ガスボックス、流体制御装置
14 筐体
18 屈曲部
20 オスナット(第1継手部材)
22 メスナット(第2継手部材)
24 トルク付与部
42 半導体製造装置
48 チャンバ
50 開閉バルブ
Dp 配管の直径
Dd1、Dd2 継手の直径
W 接続面の面幅
X 延設方向
Y 配列方向
Z 交差方向
Claims (5)
- 流体制御機器及び継手が直列に配管で接続された流体ラインを並列に複数配列した流体供給システムであって、
前記各流体ラインは、これらの配列方向を含む平面で見たとき、前記配列方向と実質的に直交する延設方向に直線状に延設され、
前記各流体制御機器は、前記配管が接続される接続面を同一方向に向けて前記配列方向に並んで配置され、
前記配管の直径は、前記接続面の前記配列方向における面幅以下であり、前記継手の直径は、前記面幅以上であり、
前記配列方向に隣り合う前記各配管は、前記継手が前記延設方向に互いにずれた位置に位置付けられる、流体供給システム。 - 前記配列方向と前記延設方向との双方と実質的に直交する交差方向を規定したとき、
前記配列方向に隣り合う前記各配管の少なくとも何れか一方は、前記継手を前記交差方向に向けて互いにずれた位置に位置付ける屈曲部を有する、請求項1に記載の流体供給システム。 - 前記継手は、
第1継手部材と、
前記第1継手部材に螺合される第2継手部材と、
前記第1継手部材に対する前記第2継手部材の螺合に際して回転トルクが付与されるトルク付与部と
を有し、
前記配列方向と前記延設方向との双方と実質的に直交する交差方向を規定したとき、
前記配列方向に隣り合う前記各配管は、前記継手の少なくとも前記トルク付与部が前記延設方向と前記交差方向との双方に互いにずれた位置に位置付けられる、請求項1又は2に記載の流体供給システム。 - 請求項1から3の何れか一項に記載の流体供給システムを筐体に収容してなる、流体制御装置。
- 請求項4に記載の流体制御装置を備える半導体製造装置であって、
前記流体制御装置から延設された前記配管が接続され、前記流体制御装置から供給される流体を処理するチャンバと、
前記流体制御装置と前記チャンバとの間の前記配管に設けられ、前記流体制御機器から前記チャンバに供給される流体の流量を制御する開閉バルブと
を備える、半導体製造装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201980069490.1A CN112888893A (zh) | 2018-10-26 | 2019-10-03 | 流体供给系统、流体控制装置以及半导体制造装置 |
US17/250,980 US11346505B2 (en) | 2018-10-26 | 2019-10-03 | Fluid supply system, fluid control device, and semiconductor manufacturing device |
JP2020553053A JP7446618B2 (ja) | 2018-10-26 | 2019-10-03 | 流体供給システム、流体制御装置、及び半導体製造装置 |
KR1020217011760A KR102577128B1 (ko) | 2018-10-26 | 2019-10-03 | 유체 공급 시스템, 유체 제어 장치, 및 반도체 제조 장치 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2018201751 | 2018-10-26 | ||
JP2018-201751 | 2018-10-26 |
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JP (1) | JP7446618B2 (ja) |
KR (1) | KR102577128B1 (ja) |
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US20230176594A1 (en) * | 2021-12-03 | 2023-06-08 | Electronics And Telecommunications Research Institute | Apparatus for controlling gas flow rates at multi-ports |
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- 2019-10-03 CN CN201980069490.1A patent/CN112888893A/zh active Pending
- 2019-10-03 JP JP2020553053A patent/JP7446618B2/ja active Active
- 2019-10-03 KR KR1020217011760A patent/KR102577128B1/ko active IP Right Grant
- 2019-10-03 US US17/250,980 patent/US11346505B2/en active Active
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JP7446618B2 (ja) | 2024-03-11 |
US11346505B2 (en) | 2022-05-31 |
KR20210065973A (ko) | 2021-06-04 |
JPWO2020085033A1 (ja) | 2021-09-16 |
US20210388949A1 (en) | 2021-12-16 |
CN112888893A (zh) | 2021-06-01 |
KR102577128B1 (ko) | 2023-09-11 |
TWI725571B (zh) | 2021-04-21 |
TW202041804A (zh) | 2020-11-16 |
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