WO2016136431A1 - 搬送室 - Google Patents
搬送室 Download PDFInfo
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- WO2016136431A1 WO2016136431A1 PCT/JP2016/053553 JP2016053553W WO2016136431A1 WO 2016136431 A1 WO2016136431 A1 WO 2016136431A1 JP 2016053553 W JP2016053553 W JP 2016053553W WO 2016136431 A1 WO2016136431 A1 WO 2016136431A1
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- gas
- chemical filter
- transfer chamber
- circulation path
- box
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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
- H01L21/67155—Apparatus for manufacturing or treating in a plurality of work-stations
- H01L21/67196—Apparatus for manufacturing or treating in a plurality of work-stations characterized by the construction of the transfer chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/42—Basic components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G49/00—Conveying systems characterised by their application for specified purposes not otherwise provided for
- B65G49/05—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles
- B65G49/07—Conveying systems characterised by their application for specified purposes not otherwise provided for for fragile or damageable materials or articles for semiconductor wafers Not used, see H01L21/677
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- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M37/00—Means for sterilizing, maintaining sterile conditions or avoiding chemical or biological contamination
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
- F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
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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
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67389—Closed carriers characterised by atmosphere control
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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
- H01L21/673—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 using specially adapted carriers or holders; Fixing the workpieces on such carriers or holders
- H01L21/6735—Closed carriers
- H01L21/67389—Closed carriers characterised by atmosphere control
- H01L21/67393—Closed carriers characterised by atmosphere control characterised by the presence of atmosphere modifying elements inside or attached to the closed carrierl
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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
- H01L21/677—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 for conveying, e.g. between different workstations
- H01L21/67763—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 for conveying, e.g. between different workstations the wafers being stored in a carrier, involving loading and unloading
- H01L21/67766—Mechanical parts of transfer devices
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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
- H01L21/683—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 for supporting or gripping
- H01L21/687—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches
- H01L21/68707—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 for supporting or gripping using mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a robot blade, or gripped by a gripper for conveyance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
Definitions
- the present invention relates to a transfer chamber capable of transferring a transfer object in a clean state without being exposed to outside air.
- semiconductor devices have been manufactured by subjecting wafers to various processing steps.
- the same technique as described above is also used in the field related to cell culture as described in Patent Document 2 below.
- the inside of the transfer chamber is kept clean by sterilization or the like, and a culture container such as a petri dish is transferred to and from a culture apparatus as an adjacent processing apparatus using a transfer robot provided inside. Is configured to do.
- a transfer chamber in the cell culture-related field, it is possible to maintain a clean atmosphere by circulating the internal gas through the filter, and to obtain a cleaner atmosphere by removing chemical components by the chemical filter. Conceivable.
- JP 2012-49382 A Japanese Patent No. 4550101
- a detoxification device may be provided as a gas treatment device for detoxifying the gas after sterilization with gas. Similar problems may occur in replacement.
- An object of the present invention is to effectively solve such problems. Specifically, the gas processing apparatus can be replaced without affecting the internal atmosphere, and the gas processing apparatus can be replaced. An object of the present invention is to provide a transfer chamber that can shorten or eliminate the stop time of the transfer work of the transferred object.
- the transfer chamber of the present invention is a transfer chamber for transferring a transfer object to and from the processing apparatus side using a transfer robot provided therein, and is formed inside to circulate the gas.
- a gas processing apparatus can be replaced
- the gas treatment device is separated when the gas treatment device is separated from the circulation path by the contact / separation means. It is preferable that a shortened circulation path in which the gas circulates without passing through is formed.
- the contacting / separating means includes a gas inlet for allowing gas to flow into the gas processing device, and a gas from the gas processing device. It is preferable that the gas discharge port for discharging the gas is constituted by an open / close lid that opens and closes the gas discharge port.
- the gas processing box In order to improve the work efficiency of the replacement of the gas processing device, and to enable selection of the presence or absence of the gas processing device according to the type of the object to be transferred and the content of the processing performed on the processing device side, And a gas processing box that accommodates the gas processing device.
- the gas processing box is configured to be connectable and separable to the transfer chamber main body. It is preferable that the circulation path is formed between the main body and the transfer chamber body.
- the atmosphere around the gas treatment device should be appropriately adjusted before connecting to the circulation path by the contact / separation means so as not to affect the internal atmosphere.
- the gas processing device is provided with gas purging means for replacing the atmosphere in the gas processing box that accommodates the gas processing device when the gas processing device is separated from the circulation path by the contact / separation means. is there.
- the gas processing apparatus is a chemical filter, and is installed in the gas processing box. It is preferable that the apparatus includes a moisture supply unit that includes moisture in the gas to be supplied, and a control unit that controls the moisture supply unit in accordance with the humidity in the gas processing box.
- the gas processing apparatus can be replaced without affecting the internal atmosphere, and the stoppage time of the transfer work of the object to be transferred accompanying the replacement of the gas processing apparatus can be shortened or eliminated. It is possible to provide a transfer chamber that can be used.
- FIG. 2 is a cross-sectional view of the transfer chamber at the AA position in FIG. 1.
- Sectional drawing of the same conveyance chamber in the BB position of FIG. The block diagram which shows typically the structure for controlling the internal atmosphere of the conveyance chamber.
- Sectional drawing which shows the state at the time of removing a chemical filter unit from the conveyance chamber.
- Sectional drawing which expands and shows the vicinity of the chemical filter unit of the conveyance chamber.
- Explanatory drawing which shows the procedure which removes a chemical filter box from the state of FIG.
- Explanatory drawing which shows the modification of the conveyance chamber.
- FIG. 1 is a plan view schematically showing the relationship between a transfer chamber 1 according to an embodiment of the present invention and a processing apparatus 6 connected thereto.
- the transfer chamber 1 is configured as a module device generally referred to as EFEM.
- the transfer chamber 1 includes a transfer robot 2 that transfers a wafer W, which is a transfer object, between predetermined transfer positions, and a box-shaped casing that is provided so as to surround the transfer robot 2.
- the direction on the side where the load ports 4 to 4 are connected as viewed from the housing 3 is defined as the front side
- the direction on the back wall 32 side facing the front wall 31 is defined as the back side
- the direction orthogonal to the vertical direction is defined as the side. That is, the three load ports 4 to 4 are arranged side by side.
- the transfer chamber 1 can be connected to a load lock chamber 61 constituting a part of the processing apparatus 6 adjacent to the outside of the back wall 32.
- a load lock chamber 61 constituting a part of the processing apparatus 6 adjacent to the outside of the back wall 32.
- the door 1a provided between the load lock chamber 61 and the load lock chamber 61
- the inside of the transfer chamber 1 and the load lock chamber 61 can be brought into communication with each other.
- Various processing apparatuses 6 can be used, but generally, a relay chamber 62 is provided adjacent to the load lock chamber 61, and a plurality of wafers W are processed adjacent to the relay chamber 62 (see FIG. Among them, three processing units 63 to 63 are provided.
- Doors 62a and 63a to 63a are provided between the relay chamber 62 and the load lock chamber 61 and the processing units 63 to 63, respectively, and can be communicated with each other by opening these doors.
- the wafer W can be moved between the load lock chamber 61 and the processing units 63 to 63 by using a transfer robot 64 provided in the relay chamber 62.
- FIG. 2 is a perspective view of the transfer chamber 1 as viewed from the load port 4 side
- FIG. 3 shows a cross section of the transfer chamber 1 at the position AA in FIG.
- the casing 3 constituting the transfer chamber 1 is composed of a main body box 3A, a chemical filter box 3B as a gas processing box, and a control box 3C, and the main body box 3A. These constitute the transfer chamber body 1A together with the internal transfer robot 2 (see FIG. 1) and the load ports 4 to 4 provided on the front wall 31.
- the main body box 3A, the chemical filter box 3B, and the control box 3C can be separated from each other.
- the front wall 31, the rear wall 32, the left side wall 33, and the right side wall 34 of the housing 3 are the main body box 3A, the chemical filter box 3B, the front walls 31A, 31B, and 31C of the control box 3C, the rear walls 32A, 32B, and 32C,
- the left side walls 33A, 33B, 33C and the right side walls 34A, 34B, 34C are respectively configured.
- the upper surface wall 35 of the housing 3 is constituted by the upper surface wall 35C of the control box 3C
- the bottom wall 36 of the housing 3 is constituted by the bottom wall 36A of the main body box 3A.
- bottom wall 36B of the chemical filter box 3B is in contact with the upper surface wall 35A of the main body box 3A, and the bottom wall 36C of the control box 3C is fixed to each other in a state of being in contact with the upper surface wall 35B of the chemical filter box 3B. .
- the load port 4 is connected to the opening 31a provided in the front wall 31A of the main body box 3A, and the rectangular opening 32a (see FIG. 1) provided in the back wall 32A is generally formed by a door 1a called a gate valve. It is closed. Furthermore, two openings 35A1 and 35A2 are provided in the upper surface wall 35A of the main body box 3A, and the openings 36B1 and 36B2 are also provided in the bottom wall 36B of the chemical filter box 3B at positions corresponding to these openings. The inner space S1 and the space S2 in the chemical filter box 3B communicate with each other to form one substantially sealed space CS.
- the transfer robot 2 provided in the space S1 in the main body box 3A supports the arm unit 2a having a pick for loading and transferring the wafer W and the arm unit 2a from below, and operates the arm unit 2a.
- the base portion 2b having a driving mechanism and an elevating mechanism is supported by the front wall 31A of the main body box 3A via the support portion 21 and the guide rail 22.
- the transfer robot 2 can move along the guide rails 22 extending in the width direction in the main body box 3A, and the control means 5 described later controls the operation of the transfer robot 2 to control each load. It is possible to transfer the wafer W accommodated in the FOUP 41 placed in the ports 4 to 4 to the load lock chamber 61 and to transfer the processed wafer W in each processing unit 63 to 63 into the FOUP 41 again. It has become.
- a chemical filter unit 7 as a general chemical filter that functions as a gas processing device is provided.
- the chemical filter unit 7 is used to remove an organic substance removal filter 71 for removing an organic substance component, an acid removal filter 72 for removing an acid component, and an alkali component in a chemical component contained in a gas passing through the chemical filter unit 7.
- Each of the filters 71 to 73 is independently replaceable.
- the front wall 31B and the right side wall 34B (see FIG. 2) of the chemical filter box 3B are rotatable upward about an axis provided at the upper portion, and the internal space S2 is opened by opening these.
- the filters 71 to 73 can be replaced.
- the space S2 can be sealed again by lowering the front wall 31B and the right side wall 34B vertically.
- Control means 5 that is a control unit for controlling the entire transfer chamber body 1A is provided inside the control box 3C.
- the control means 5 is constituted by a normal microprocessor or the like having a CPU, a memory, and an interface.
- the memory stores a program necessary for processing in advance, and the CPU sequentially extracts and executes the necessary program.
- the desired functions are realized in cooperation with peripheral hardware resources.
- the control means 5 operates the transfer robot 2 and the load port 4 in the main body box 3A, opens and closes the doors 1a and 4a, and supplies gas to the main body box 3A and the chemical filter box 3B. Take control.
- the space S1 in the main body box 3A is divided into a transport space S11 that is a space in which the transport robot 2 operates by an inner wall 37A that extends from the bottom wall 36A to the top wall 35A, and a gas return space S12. It has been.
- An opening 37A1 is provided in the lower part of the inner wall 37A, and the transfer space S11 and the gas return space S12 communicate with each other on the lower side through the opening 37A1.
- a fan 77 is provided below the gas return space S12 continuously with the opening 37A1. By driving the fan 77, the gas in the transport space S11 is taken into the gas return space S12, and the gas return space S12 is filled. It is possible to create upward airflow.
- FIG. 4 is a cross-sectional view at the BB position in FIG.
- a wall portion 38A surrounding the door 1a with the load lock chamber 61 (see FIG. 1) is formed at the center of the gas return space S12, and the space around the door 1a is transported. It is continuous with the space S11 (see FIG. 3). For this reason, the gas return space S12 is divided into two parts so as to avoid the door 1a from below, and is configured to merge again at the top.
- the transfer space S11 and the gas return space S12 communicate with the space S2 in the chemical filter box 3B through the openings 35A1 and 35A2 of the upper surface wall 35A described above. Therefore, the transfer space S11 and the gas return space S12 are also communicated via the space S2 in the chemical filter box 3B on the upper side.
- An FFU 76 is provided in the upper part of the transfer space S11, specifically, at a position slightly below the upper surface wall 35A, and the gas taken in from the space S2 in the chemical filter box 3B is sent downward by the FFU 76 to be transferred. A downflow can be formed in the space S11. Furthermore, the FFU 76 incorporates high-performance filters such as HEPA (High Efficiency Particulate Air) filters and ULPA (Ultra Low Penetration Air) filters to collect minute particles contained in the passing gas. It is possible to do.
- HEPA High Efficiency Particulate Air
- ULPA Ultra Low Penetration Air
- the chemical filter box 3B is provided with a discharge fan 75 between the opening 36B1 of the bottom wall 36B and the chemical filter unit 7, and a suction fan 76 is provided above the opening 36B2.
- the opening 36B2 and the opening 35A2 continuous with the opening 36B2 function as a gas inflow port through which gas flows into the chemical filter unit 7, and the suction fan 76 is connected to the chemical filter box from the gas feedback space S12 through the openings 36B2 and 35A2. Gas is allowed to flow into 3B.
- the opening 36B1 and the opening 35A1 continuous with the opening 36B1 function as a gas discharge port for discharging gas from the chemical filter unit 7, and the discharge fan 75 allows the gas that has passed through the chemical filter unit 7 to pass through the openings 35B1 and 35A1. Can be fed into the conveyance space S11. Therefore, the pressure loss caused by the chemical filter unit 7 can be compensated by the two fans 75 and 76, and a gas flow can be created.
- the gas constituting the internal atmosphere circulates along the following circulation path CL1. That is, the circulation path CL1 advances downward from the FFU 76 provided in the upper part of the transfer space S11, and advances upward in the gas return space S12 through the opening 37A1 provided in the lower part of the inner wall 37A and the fan 77. Then, after passing through the openings 35A2 and 36B2, it enters the space S2 in the chemical filter box 3B via the suction fan 74, passes through the chemical filter unit 7, passes through the discharge fan 75 and the openings 36B1 and 35A1, and enters the transport space S11. Formed to return. Therefore, it can be said that the chemical filter unit 7 is provided in the middle of the circulation path CL1.
- the rear wall 32A of the main body box 3A is provided with a gas supply port 91A and a gas discharge port 92A, and further a chemical filter.
- the box 3B is also provided with a gas supply port 91B and a gas discharge port 92B.
- FIG. 5 schematically shows the configuration of the pipes connected to the gas supply ports 91A and 91B and the gas discharge ports 92A and 92B, and the control means 5 for controlling the gas supplied to them.
- Gas supply lines GS1 and GS2 for introducing N2 gas from an N2 supply source are connected to the gas supply ports 91A and 91B, and a gas for deriving N2 gas to the N2 discharge destination is connected to the gas discharge ports 92A and 92B.
- the discharge lines GE1 and GE2 are connected. The operation by the control means 5 will be described in detail later.
- FIG. 6 shows a state in which the substantially sealed space CS is divided into a space S1 in the main body box 3A and a space S2 in the chemical filter box 3B, and the front wall 31B of the chemical filter box 3B is further opened. is there.
- the opening 35A1 can be opened by opening the tips so as to be separated from each other, and the conveying space S11 and the space S2 in the chemical filter box 3B can be communicated with each other through the opening 35A1.
- the opening 35 ⁇ / b> A ⁇ b> 1 can be closed by placing the dampers 81 and 82 horizontally and closely contacting the inside of the upper surface wall 35 ⁇ / b> A.
- a damper 83 as an opening / closing door is rotatably provided below the opening 35A2, and the opening 35A2 is opened by rotating the damper 83 downward as shown in FIG.
- the gas return space S12 and the space S2 in the chemical filter box 3B can be communicated with each other through the opening 35A2.
- the opening 35 ⁇ / b> A ⁇ b> 2 can be closed by making the damper 83 horizontal and closely contacting the inside of the upper surface wall 35 ⁇ / b> A.
- Rotation of the dampers 81 to 83 may be performed by operating a lever or the like provided in the main body box 3A, or may be configured to be performed using a driving mechanism such as a motor.
- an opening 37A2 is provided in the upper part of the inner wall 37A provided in the main body box 3A, and the transfer space S11 and the gas return space S12 can be directly communicated with each other through the opening 37A2. It has become. However, in a normal state where the dampers 82 and 83 are rotated downward so as to open the openings 35A1 and 35A2, the dampers 82 and 83 are in close contact with the inner wall 37A so as to close the opening 37A2. Therefore, when the openings 35A1 and 35A2 are opened, the opening 37A2 is closed, and the circulation path CL1 through which the gas flows is not affected.
- a new circulation path CL2 is formed as a shortened circulation path partially short-circuited as follows. That is, the new circulation path CL2 advances downward from the FFU 76 provided in the upper part of the transfer space S11, and passes through the opening 37A1 provided in the lower part of the inner wall 37A and the fan 77 and moves upward in the gas return space S12. , And pass through an opening 37A2 provided in the upper part of the inner wall 37A so as to return to the FFU 76. At this time, the chemical filter unit 7 is disconnected from the circulation path CL1, and the circulation path CL2 is formed in the remaining portion.
- dampers 81 to 83 function as the separating means 8 for disconnecting the chemical filter unit 7 in the middle of the circulation path CL1 from the circulation path CL1 or connecting it to the circulation path CL1.
- the front wall 31B or the side wall 34B (see FIG. 2) is opened to open the space S2, and the chemical filter The unit 7 can be exchanged.
- the chemical filter unit 7 since the chemical filter unit 7 is separated from the space S1 in the main body box 3A, the space S1 can be kept clean without being exposed to the outside air. Therefore, the wafer W can be continuously transferred inside the transfer chamber main body 1 ⁇ / b> A while replacing the chemical filter unit 7.
- FIG. 7 is an enlarged sectional view showing the periphery of the chemical filter box 3B.
- the chemical filter box 3B is provided with a slit SL into which the shielding plate 84 can be inserted from the front side.
- the shielding plate 84 is a side view L-shaped member formed by bending a sheet metal, has a rectangular shape in plan view, and is slightly smaller than the chemical filter box 3B.
- FIG. 8A shows a state in which the shielding plate 84 is inserted rearward from the slit SL (see FIG. 7).
- the shielding plate 84 is parallel to the bottom wall 36B of the chemical filter box 3B and shields between the openings 36B1 and 36B2 and the internal space S2. Therefore, the space S1 in the main body box 3A and the space S2 in the chemical filter box 3B can be separated only by inserting the shielding plate 84.
- the shielding plate 84 is removed, the space S2 in the chemical filter box 3B is opened to the outside through the slit SL.
- a dummy plate is used instead of the shielding plate 84.
- a member is inserted to prevent communication with the outside, and holes corresponding to the openings 36B1 and 36B2 are formed in the dummy plate member so as not to obstruct the formation of the circulation path CL1 (see FIG. 3). .
- FIG. 8B shows a state where the chemical filter box 3B and the control box 3C are further separated from the main body box 3A.
- the chemical filter box 3B can keep the internal space S2 in a sealed state even when separated from the main body box 3A and the control box 3C, and the space in the main body box 3A.
- S1 can also be kept sealed by the dampers 81-83. Therefore, separation can be performed without exposing the inside to the outside air, and the front wall 31B or the side wall 34B (see FIG. 2) is exchanged after the chemical filter box 3B is replaced or the chemical filter box 3B is moved to another place. It is also possible to replace the chemical filter unit 7 by opening. Furthermore, when it is determined that the chemical filter unit 7 is unnecessary from the contents of processing performed on the wafer W, the chemical filter box 3B can be eliminated and the main body box 3A and the control box 3C can be directly connected.
- the surface of the wafer W that is an object to be transferred is cleaned inside the main body box 3A and the chemical filter box 3B.
- purging with N 2 gas which is an inert gas is performed, and the atmosphere is replaced.
- N2 gas is supplied from the gas supply port 91B on the chemical filter box 3B side shown in FIG. 5 through the gas supply line GS2, and the internal air is supplied from the gas discharge port 92A to the gas discharge line. Discharge through GE1.
- a regulator 93, a valve 94, an MFC (gas flow rate controller) 95, and a valve 94 are sequentially provided in a pipe led from an N 2 gas supply source, and connected to the gas supply port 91B.
- a flow rate adjusting valve 98 and a valve 94 are sequentially provided in a pipe connected to the gas discharge port 92A, and a gas discharge destination is connected to the end thereof. Therefore, by controlling the amount of N2 gas supplied from the gas supply port 91B while controlling the amount of discharge from the gas discharge port 92A, the space S1 in the main body box 3A and the space S2 in the chemical filter box 3B are controlled. Can be filled with N2 gas to eliminate air.
- the concentration of N2 gas increases above a certain level, the amount of N2 gas supplied from the gas supply port 91B is reduced, while the amount of discharge from the gas discharge port 92A is made small to keep the inside at a positive pressure. I have to.
- the N2 gas is a dry gas containing almost no moisture, the moisture on the inside can be reduced to prevent the surface of the wafer W from being corroded.
- N2 gas can be supplied to the main body box 3A through the gas supply line GS1, and gas can be discharged from the chemical filter box 3B through the gas discharge line GE2.
- a valve 94 and a flow rate adjusting valve 98 are provided in order in a pipe led from the N2 gas supply source and connected to the gas supply line GS1, and the gas discharge line GE2 has a gas discharge port 92B.
- a flow rate adjusting valve 98 and a valve 94 are sequentially provided in the connected pipe, and a gas discharge destination is connected to the end thereof.
- the main body box 3A side is connected to the gas supply line GS1 and the gas discharge line.
- discharge can be performed while supplying a slight amount of fresh N2 gas inside.
- the gas supply line GS2 and the gas discharge line GE2 can be used to supply fresh N2 gas and discharge the internal gas.
- the inside can be purged with N 2 gas. That is, the gas supply line GS2 and the gas discharge line GE2 constitute a gas purge means PM for purging the inside of the chemical filter box 3B. Therefore, even when the chemical filter unit 7 is replaced, it is only necessary to replace the N2 gas for the slight space S2 in the chemical filter box 3B, and the N2 consumption can be reduced.
- the organic matter removal filter 71 removes organic matter components by adsorption, while the acid removal filter. 72 and the alkali removal filter 73 remove an acid component and an alkali component by a hydrolysis reaction. Therefore, a certain amount or more of water is necessary for removing the acid component and the alkali component, and if the humidity in the gas becomes too low, the removal performance is significantly lowered.
- the following moisture supply means HS is provided so that moisture can be included in the N 2 gas supplied from the gas supply port 91B.
- the water supply means HS includes a valve 94 connected to a pipe connected to a water supply source, an LFC (Liquid Flow Controller) 99, a valve 94, a sprayer 96 commonly called injection, a vaporizer 97, and a vaporizer 97. And a heater controller 97b for operating the heater 97a included in FIG.
- LFC Liquid Flow Controller
- a valve 94, an LFC 99, and a valve 94 are sequentially connected to a pipe connected to a water supply source, and further connected to a sprayer 96 provided in the middle of the gas supply line GS2. Therefore, the amount of water to be applied can be determined by adjusting the flow rate of water with the LFC 99, and the water can be made into a fine mist by the sprayer 96 and included in the N2 gas.
- a vaporizer 97 including a pipe formed in a coil shape and a heater 97 a for heating the pipe is provided on the downstream side of the sprayer 96.
- the heater 97a When the heater 97a is supplied with electric power from the heater controller 97b, the heater 97a can heat the gas flowing through the pipe and vaporize water particles contained therein. Further, the piping from the sprayer 96 to the gas supply port 91B through the vaporizer 97 is provided with a heat retaining means HI composed of a heat retaining material and a heat retaining heater. Thus, it does not flow into the chemical filter box 3B.
- the gas supply line GS2 to which the moisture supply means HS is added as described above constitutes a gas supply means NS for supplying N2 gas containing moisture together with the moisture supply means HS.
- humidity detectors HG1 and HG2 for detecting the humidity of the space S1 in the main body box 3A and the space S2 in the chemical filter box 3B are provided. Further, a pressure detector PG for detecting a pressure difference between the space S1 in the main body box 3A and the outside is provided.
- control means 5 In order to control the gas supply means NS based on the detected values from these, the control means 5 described above is configured as follows.
- the control means 5 includes a gas (N 2) flow rate determination unit 51, a water (H 2 O) flow rate determination unit 52, a heater operation command unit 53, a pressure acquisition unit 54, a humidity acquisition unit 55, and a storage unit 56. ing.
- the storage unit 56 stores a pressure target value and a humidity target value, which are predetermined values.
- the pressure acquisition unit 54 can acquire an output from the pressure detector PG and output it as a pressure detection value.
- the humidity acquisition unit 55 can acquire outputs from the humidity detectors HG1 and HG2 and output them as detected humidity values.
- the gas flow rate determination unit 51 determines the flow rate of the N2 gas supplied from the gas supply line GS2 based on the pressure detection value obtained by the pressure acquisition unit 54, and outputs the corresponding gas flow rate command value to the MFC 95. It is configured. More specifically, when the detected pressure value is within a predetermined range centered on the target pressure value, the gas flow rate command value is maintained as it is, and when the detected pressure value is smaller than the above predetermined range, N2 gas is maintained. When the detected pressure value is larger than the predetermined range, the gas flow rate command value is changed so as to decrease the N2 gas supply amount.
- the water flow rate determination unit 52 determines the flow rate of water supplied from the water supply means HS based on the humidity detection value obtained by the humidity detector HG2 obtained through the humidity acquisition unit 55, and the corresponding water flow rate command value. Is output to LFC99. More specifically, when the humidity detection value is within a predetermined range centered on the humidity target value, the water flow rate command value is maintained as it is, and when the humidity detection value is smaller than the predetermined range, When the supply amount is increased and the humidity detection value is larger than the predetermined range, the water flow rate command value is changed so as to reduce the supply amount of water. When the humidity detection value is larger than the humidity target value, the supply amount of water may be zero and only N2 gas may be supplied.
- the humidity detection value by the humidity detector HG1 is used for monitoring, but the humidity detection value by the humidity detector HG1 is used for monitoring by using the humidity detection value by the humidity detector HG2 for monitoring.
- the heater operation command unit 53 is configured to give a command to the heater controller 97b so as to operate the heater 97a in response to the water flow rate command value determined by the water flow rate determination unit 52.
- the operation can be performed as follows.
- the openings 35A1 and 36B1 and the openings 35A1 and 36B1 that are continuous between the main body box 3A and the chemical filter box 3B by the dampers 81 to 83 as the separating means 8 as shown in FIG. 35A2 and 36B2 are opened.
- the space S1 in the main body box 3A and the space S2 in the chemical filter box 3B are connected to form one sealed space CS, and the transfer space S11, the gas return space S12, and the chemical filter are formed therein.
- a circulation path CL1 for circulating gas between the spaces S2 in the box 3B is formed.
- the pressure acquisition unit 54 acquires the pressure detection value from the output obtained from the pressure detector PG, and the gas flow rate determination unit 51 determines the gas flow rate command value based on this pressure detection value and outputs it to the MFC 95.
- the MFC 95 adjusts the gas flow rate according to the gas flow rate command value, whereby the flow rate of the N 2 gas supplied to the substantially sealed space CS is changed.
- the gas can be circulated along the circulation path CL1, and the chemical filter unit 7 and the FFU 76 enter the gas.
- the contained particles and chemical components can be removed to obtain a clean state.
- the humidity acquisition unit 55 constituting the control means 5 acquires the humidity detection value from the output obtained from the humidity detector HG2, and the water flow rate determination unit 52 determines the water flow rate command value based on this humidity detection value. And output to LFC99.
- the LFC 99 adjusts the water flow rate according to the water flow rate command value, thereby adjusting the amount of water contained in the N 2 gas supplied to the substantially sealed space CS. Further, the moisture is given as fine particles by the sprayer 96 and then given into the chemical filter box 3B in a state of being vaporized by using the vaporizer 97 on the downstream side.
- the wafer W that is a transfer object can be transferred.
- the dampers 81 to 83 constituting the separating means 8 are operated to close the opening 35A1 and the opening 35A2 and Opening 37A2 formed in the upper part of wall 37A is opened. By doing so, it is possible to separate the space S1 in the main body box 3A and the space S2 in the chemical filter box 3B and to form a short circuit CL2 inside the main body box 3A.
- gas circulation along the circulation path CL2 is continued by the FFU 76 and the fan 77 in the main body box 3A, and fresh N2 gas is supplied from the gas supply port 91A through the gas supply line GS1 (see FIG. 5). By doing so, the inside can be kept clean. Therefore, the wafer W can be continuously transferred by operating only the transfer chamber body 1A while exchanging the chemical filter unit 7.
- the chemical filter unit 7 is separated from the circulation path CL1 (CL2) by the separating means 8, the front wall 31B or the side wall 34B (see FIG. 2) is opened.
- the chemical filter unit 7 can be freely replaced without affecting the transfer chamber body 1A side.
- the gas is supplied from the gas supply port 91B shown in FIG. While supplying N2 gas through the line GS2, air is discharged from the gas discharge port 92B through the gas discharge line GE2, and purged with N2 gas.
- the portion exposed to the outside air is limited to the space S2 in the chemical fill box 3B. Therefore, when the gas purge is performed again, the consumption of N2 gas is reduced and the work time is reduced. It can be shortened.
- a humidity detection value is obtained from an output obtained from the humidity detector HG2, and the humidity detection value is within a predetermined range centered on the humidity target value.
- moisture is supplied from the moisture supply means HS to the N 2 gas. Therefore, the chemical filter unit 7 can be brought into a state in which the chemical component can be properly removed at the stage of purging the inside of the chemical filter box 3B with N2 gas.
- the space S2 in the chemical filter box 3B is purged with N2 gas, the humidity is controlled, the separation means 8 is operated again, and the main body box 3A
- the inner space S1 and the space S2 in the chemical filter box 3B are made continuous, and a circulation path CL1 is formed between the transport space S11, the gas return space S12, and the space S2 in the chemical filter box 3B.
- the chemical filter unit 7 is connected to the circulation path CL1.
- the supply of N2 gas from the gas supply line 91A and the discharge of gas from the gas discharge port 92B are stopped, and the N2 gas is slightly discharged from the gas discharge line 92A while being slightly supplied from the gas supply line 91B. Shift to normal control.
- the chemical filter box 3B even when the chemical filter box 3B is separated from the main body box 3A by inserting the shielding plate 84 into the chemical filter box 3B, the chemical filter box 3B The closed state of the inner space S2 can be maintained. Therefore, the chemical filter box 3B can be replaced without being exposed to the outside air excessively, or moved to another place for maintenance.
- the control box 3C can be directly connected to the main body box 3A to configure the transfer chamber 1 without the chemical filter unit 7.
- the transfer chamber 1 in the present embodiment is for transferring the wafer W, which is a transfer object, to and from the processing apparatus 6 side using the transfer robot 2 provided in the interior.
- the chemical filter unit 7 can be replaced without affecting the internal atmosphere by separating the chemical filter unit 7 from the circulation path CL1 by the contact / separation means 8. It becomes possible to keep the space S1 in a clean state. In addition, since it is not necessary to expose the entire interior of the transfer chamber 1 to the outside air when the chemical filter unit 7 is replaced, time for adjusting the atmosphere after the chemical filter unit 7 is reconnected to the circulation path CL1 is eliminated or shortened. be able to. Therefore, it is possible to eliminate or shorten the stop time of the transfer operation of the wafer W accompanying the replacement of the chemical filter unit 7.
- the contact / separation means 8 is provided with dampers 81 to 83 as opening / closing lids for opening and closing the gas inlet 36B2 through which gas flows into the chemical filter unit 7 and the gas outlet 36B1 through which gas is discharged from the chemical filter unit 7, respectively. Since it is configured, the chemical filter unit 7 can be easily disconnected from and connected to the circulation path CL1.
- the transfer robot 2 includes a transfer chamber body 1A in which the transfer robot 2 is provided, and a chemical filter box 3B as a gas processing box that accommodates the chemical filter unit 7, and the chemical filter box 3B is connected to the transfer chamber body 1A. Since it is configured to be separable and configured so that the circulation path CL1 is formed between the chemical filter box 3B and the transfer chamber body 1A when connected, the work efficiency of replacing the chemical filter unit 7 is improved. In addition, the presence or absence of the chemical filter box 3B can be selected depending on the type of wafer W and the content of processing.
- a gas purge means PM that replaces the atmosphere in the chemical filter box 3B that accommodates the chemical filter unit 7 when the chemical filter unit 7 is separated from the circulation path CL1 by the contact / separation means 8. Therefore, even if the chemical filter unit 7 is exchanged, it is exposed to the outside air, so that the atmosphere around the chemical filter unit 7 can be appropriately adjusted before connecting to the circulation path CL1 by the contact / separation means 8. The influence on the transfer of the wafer 7 can be suppressed.
- the gas processing apparatus is a chemical filter unit 7, a moisture supply means HS for containing moisture in the gas supplied into the chemical filter box 3B, and a moisture supply means HS according to the humidity in the chemical filter box 3B.
- a control means 5 that performs control. Therefore, after the chemical filter unit 7 is replaced, the humidity around the chemical filter unit 7 is appropriately adjusted to provide sufficient removal capability. Since it can be connected to the circulation path CL1, the removal capability higher than that immediately after the replacement can be exhibited, and the stop time can be shortened or eliminated.
- the dampers 81 to 83 constituting the separating means 8 are provided on the main body box 3A side and the shielding plate 84 is configured to be attachable to the chemical filter box 3B side.
- the dampers 181, 182, and 185 can be provided in the chemical filter box 103 ⁇ / b> B, and the shielding plate 184 can be attached to the main body box 103 ⁇ / b> A side.
- FIG. 9 the same parts as those in the above-described embodiment are denoted by the same reference numerals, and description thereof is omitted. As shown in FIG.
- dampers 181 and 182 are provided in the opening 36B1 of the chemical filter box 103B, and a damper 185 is provided in the opening 36B2.
- a damper 83 that selectively closes the opening 35A2 provided in the upper surface wall 35A and the opening 37A2 provided in the inner wall 37A is also provided on the main body box 103A side. Then, by opening the openings 36B1 and 36B2 with the dampers 181, 182 and 185, and opening the opening 35A2 with the damper 83 and closing the opening 37A2, the main body box 103A and the chemical filter 103B can be brought into communication. . Further, as shown in FIG.
- the openings 36B1 and 36B2 are closed by the dampers 181, 182 and 185, the opening 35A2 is closed by the damper 83 and the opening 37A2 is opened, so that the main body box 103A and the chemical filter are opened.
- the gas can be circulated only in the main body box 103A while being separated from the main body box 103A.
- the opening 35A can be closed by inserting the shielding plate 184 into the slit SL formed slightly below the opening 35A, and thus the chemical filter box 103B can be separated from the main body box 103A. It becomes possible to maintain a sealed state.
- a fan with a damper in which the dampers 181, 182, 185 and the fans 74, 75 are integrally formed can be used by further modifying the configuration of FIG. 9.
- N 2 gas is used as the gas filling the inside.
- gases such as Ar (argon) gas, which is also an inert gas, can be used, and a wafer which is a transferred object. It can be appropriately changed according to the content of the process for W.
- the chemical filter unit 7 not only the chemical filter unit 7 but also a sterilization filter or a particle removal filter can be used, and it is possible to remove or weaken a specific component from the circulating gas. Even in such a case, the same effect as described above can be obtained.
- the wafer chamber W used for semiconductor manufacturing is configured as the transfer chamber 1 having the transferred object.
- this structure is also used in the field related to cell culture as described in Patent Document 2.
- Can do That is, it can also be configured as a transfer chamber for transferring a culture container such as a petri dish as a transfer object in a clean sealed space, and in this case as well, effects similar to the above can be obtained.
- a sterilizing gas such as hydrogen peroxide may be used as a gas circulating inside.
- the detoxification device for detoxifying the sterilization gas after the sterilization gas is circulated only for a predetermined period to achieve the purpose of sterilization is replaced with the above-described chemical filter unit 7 or in place of the chemical filter unit 7.
- An example of the detoxifying device is a decomposing device including a catalyst that decomposes hydrogen peroxide into water and oxygen.
Abstract
Description
1A…搬送室本体
2…搬送ロボット
3B…ケミカルフィルタボックス(ガス処理ボックス)
5…制御手段
6…処理装置
7…ケミカルフィルタユニット(ケミカルフィルタ、ガス処理装置)
8…切離手段
36B1…開口(ガス吐出口)
36B2…開口(ガス流入口)
81~83…ダンパ(開閉蓋)
CL1…循環路
CL2…循環路(短縮循環路)
HS…水分供給手段
PM…ガスパージ手段
W…ウエハ(被搬送物)
Claims (6)
- 内部に設けられる搬送ロボットを用いて処理装置側との間で被搬送物の受け渡しを行うための搬送室であって、
ガスを循環させるために内部に形成された循環路と、
当該循環路の途中に設けられたガス処理装置と、
当該ガス処理装置の前記循環路からの切り離しと接続とを切り替える接離手段と、を備えることを特徴とする搬送室。 - 前記接離手段によって前記ガス処理装置を前記循環路より切り離した際に、前記ガス処理装置を通過せずにガスが循環する短縮循環路が形成されることを特徴とする請求項1記載の搬送室。
- 前記接離手段が、前記ガス処理装置にガスを流入させるガス流入口と、ガス処理装置よりガスを吐出させるガス吐出口とをそれぞれ開閉する開閉蓋により構成されていることを特徴とする請求項1又は2記載の搬送室。
- 前記搬送ロボットが内部に設けられる搬送室本体と、前記ガス処理装置を収容するガス処理ボックスとを備え、当該ガス処理ボックスを前記搬送室本体に対して接続及び分離可能に構成し、接続した場合にこれらガス処理ボックスと搬送室本体との間で前記循環路が形成されるように構成していることを特徴とする請求項1~3の何れかに記載の搬送室。
- 前記接離手段によって前記ガス処理装置を前記循環路より切り離した際に、当該ガス処理装置を収容するガス処理ボックス内の雰囲気を置換するガスパージ手段を備えることを特徴とする請求項1~4の何れかに記載の搬送室。
- 前記ガス処理装置がケミカルフィルタであって、前記ガス処理ボックス内に供給するガスに水分を含ませる水分供給手段と、ガス処理ボックス内の湿度に応じて前記水分供給手段の制御を行う制御手段と、を備えることを特徴とする請求項5記載の搬送室。
Priority Applications (7)
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EP16755180.3A EP3264450B1 (en) | 2015-02-27 | 2016-02-05 | Transfer chamber |
US15/554,135 US10672632B2 (en) | 2015-02-27 | 2016-02-05 | Transfer chamber |
KR1020227036716A KR20220146702A (ko) | 2015-02-27 | 2016-02-05 | 반송실 |
KR1020177024042A KR102459133B1 (ko) | 2015-02-27 | 2016-02-05 | 반송실 |
US16/845,555 US11424145B2 (en) | 2015-02-27 | 2020-04-10 | Transfer chamber |
US17/860,202 US11823923B2 (en) | 2015-02-27 | 2022-07-08 | Transfer chamber |
US18/484,546 US20240038554A1 (en) | 2015-02-27 | 2023-10-11 | Transfer chamber |
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JP2015038388A JP6511858B2 (ja) | 2015-02-27 | 2015-02-27 | 搬送室 |
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US15/554,135 A-371-Of-International US10672632B2 (en) | 2015-02-27 | 2016-02-05 | Transfer chamber |
US16/845,555 Division US11424145B2 (en) | 2015-02-27 | 2020-04-10 | Transfer chamber |
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Also Published As
Publication number | Publication date |
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KR20220146702A (ko) | 2022-11-01 |
TWI677653B (zh) | 2019-11-21 |
EP3264450A4 (en) | 2018-10-24 |
EP3264450A1 (en) | 2018-01-03 |
JP6511858B2 (ja) | 2019-05-15 |
US20200312686A1 (en) | 2020-10-01 |
US20180040493A1 (en) | 2018-02-08 |
US20240038554A1 (en) | 2024-02-01 |
JP2016162818A (ja) | 2016-09-05 |
KR20170121190A (ko) | 2017-11-01 |
US20220344182A1 (en) | 2022-10-27 |
US11424145B2 (en) | 2022-08-23 |
KR102459133B1 (ko) | 2022-10-27 |
US11823923B2 (en) | 2023-11-21 |
US10672632B2 (en) | 2020-06-02 |
TW201636553A (zh) | 2016-10-16 |
EP3264450B1 (en) | 2022-11-30 |
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