WO2012070176A1 - 色素吸着装置及び色素吸着方法 - Google Patents
色素吸着装置及び色素吸着方法 Download PDFInfo
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- WO2012070176A1 WO2012070176A1 PCT/JP2011/005415 JP2011005415W WO2012070176A1 WO 2012070176 A1 WO2012070176 A1 WO 2012070176A1 JP 2011005415 W JP2011005415 W JP 2011005415W WO 2012070176 A1 WO2012070176 A1 WO 2012070176A1
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- dye
- dye solution
- boat
- substrates
- treatment tank
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Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/18—Processes or apparatus specially adapted for the manufacture or treatment of these devices or of parts thereof
-
- 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
- H01L21/67028—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like
- H01L21/6704—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing
- H01L21/67057—Apparatus for fluid treatment for cleaning followed by drying, rinsing, stripping, blasting or the like for wet cleaning or washing with the semiconductor substrates being dipped in baths or vessels
-
- 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
- H01L21/67063—Apparatus for fluid treatment for etching
- H01L21/67075—Apparatus for fluid treatment for etching for wet etching
- H01L21/67086—Apparatus for fluid treatment for etching for wet etching with the semiconductor substrates being dipped in baths or vessels
-
- 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
- H01L21/67739—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 into and out of processing chamber
- H01L21/67757—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 into and out of processing chamber vertical transfer of a batch of workpieces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L31/04—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof adapted as photovoltaic [PV] conversion devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2059—Light-sensitive devices comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the present invention relates to a dye adsorption device and a dye adsorption method for adsorbing a dye on a porous semiconductor layer formed on a surface to be processed of a substrate.
- the dye-sensitized solar cell has, as a basic structure, a porous semiconductor layer 204 and an electrolyte layer that carry a sensitizing dye between a transparent electrode (cathode) 200 and a counter electrode (anode) 202. 206 is sandwiched between them.
- the semiconductor layer 204 is divided into cell units together with the transparent electrode 200, the electrolyte layer 206 and the counter electrode 202, and is formed on the transparent substrate 208 via the transparent electrode 200.
- the back side of the counter electrode 202 is covered with a counter substrate 210.
- the transparent electrode 200 of each cell is electrically connected to the adjacent counter electrode 202, and a large number of cells are electrically connected in series or in parallel in the entire module.
- the dye-sensitized solar cell having such a configuration, when visible light is irradiated from the back side of the transparent substrate 208, the dye supported on the semiconductor layer 204 is excited and emits electrons. The emitted electrons are guided to the transparent electrode 200 through the semiconductor layer 204 and taken out to the outside. The emitted electrons return to the counter electrode 202 via an external circuit (not shown), and are received again by the dye in the semiconductor layer 204 via ions in the electrolyte layer 206. In this way, light energy is immediately converted into electric power and output.
- the immersion type dye adsorption treatment method as described above has a very long treatment time and requires at least several tens of hours.
- the production rate of the dye-sensitized solar cell is controlled by the tact of all steps and is produced. This is one of the factors that reduce efficiency. To solve this problem, it is conceivable to operate a plurality of immersion type dye adsorption devices in parallel, but at least several tens of devices must be prepared, which is not practical.
- the present invention solves the problems of the prior art as described above, and can greatly reduce the processing time of the process of adsorbing the dye to the porous semiconductor layer formed on the processing surface of the substrate.
- An adsorption device and a dye adsorption method are provided.
- a dye adsorption apparatus is a dye adsorption apparatus that adsorbs a dye to a porous semiconductor layer formed on a surface to be processed of a substrate, and the surface to be processed of the substrate faces sideways.
- a boat for detachably holding a plurality of the substrates in a row
- a processing tank for detachably storing the boat and the plurality of substrates held by the boat, and an upper surface opening
- An upper lid a first transport unit for taking the boat into and out of the processing tank, and the plurality of substrates held by the boat in the processing tank into a dye solution in which the dye is dissolved in a predetermined solvent
- a dye solution supply unit for supplying the dye solution into the processing tank and a flow control unit for controlling the flow of the dye solution in the processing tank during processing so as to be immersed.
- batch-type dye adsorption treatment is performed on a plurality of substrates in a treatment tank.
- a flow of the dye solution is formed in the processing tank under the condition that the upper surface opening of the processing tank is closed by the upper lid, and the surface to be processed of the substrate is exposed to the flow of the high-pressure dye solution. .
- each of the treatment tanks is provided with at least one first and second port, and the dye solution supply unit is connected to the treatment tank using at least one of the first and second ports.
- the dye solution is supplied, and the flow control unit controls the flow of the dye solution using the first port and the second port.
- the flow control unit circulates the dye solution between the inside and outside of the treatment tank, or the old solution of the dye solution in the treatment tank using the first port and the second port.
- a mode of controlling the flow of the dye solution while substituting with the new solution can be suitably employed. It is also possible for the dye solution supply unit to replace the old solution of the dye solution with the new solution in the treatment tank using the first port and the second port.
- the treatment tank is further provided with a third port for draining
- the dye solution supply unit includes at least one of the first and second ports and the third port.
- the old solution of the dye solution is replaced with the new solution in the treatment tank
- the flow control unit uses at least one of the first and second ports and the third port to use the old solution of the dye solution in the treatment tank.
- the flow of the dye solution is controlled while substituting for the new solution.
- the flow control unit can suitably take a form in which the flow direction of the dye solution is changed during processing, a form in which the flow rate of the dye solution is changed, or a form in which the pressure in the processing tank is changed.
- a substrate support portion is provided that supports each substrate in contact with the back surface of the substrate independently from the boat in the processing tank.
- the substrate support portion has a plurality of support members provided in the processing tank in a row at intervals corresponding to a plurality of substrates held in a row on the boat, and each support is provided.
- the member can come into contact with the back surface of each corresponding substrate by a bar-like or plate-like main body extension extending upward from the bottom of the processing tank.
- the substrate support portion has a plurality of support members provided on the upper lid in a row at intervals corresponding to a plurality of substrates held in a row on the boat, and each support is provided.
- the member can come into contact with the back surface of each corresponding substrate by a bar-like or plate-like lid projecting portion extending downward from the lower surface of the upper lid.
- the plurality of substrates subjected to the batch type dye adsorption treatment in the treatment tank are supported on the back surface by the support member provided in the treatment tank and / or the upper lid, so that the pressure received in the flow of the dye solution There is little bending or tilting. Thereby, damage or deformation of the substrate can be prevented.
- the protruding portion of the support member is in contact with the back surface of the substrate, any of surface contact, line contact, or point contact may be used. In any contact form, the surface to be processed of the substrate is not affected at all.
- the overhanging portion of the support member not only keeps the substrate posture stable in the treatment tank in this way, but also suppresses the flow of the dye solution along the back surface of the substrate, and as a reflective effect, The flow of the dye solution along the front surface (surface to be treated) is promoted, and thus the dye adsorption efficiency is promoted.
- Each support member can be in contact with and support only one substrate.
- a plurality of substrates on the boat are arranged in a row such that each pair of adjacent substrates faces their processing surfaces in opposite directions, It is possible to suitably adopt a configuration in which the supporting members can come into contact with and support the pair of adjacent substrates.
- a flow suppression unit that suppresses the flow of the dye solution along the back surface of each substrate in the processing tank.
- the flow suppressing unit preferably includes a plurality of flow suppressing members provided in the processing tank in a row at intervals corresponding to the plurality of substrates held in a row on the boat, and each flow suppressing member Suppresses the flow of the dye solution along the backside of each corresponding substrate.
- the first transport unit has an arm that is separated from the upper lid and is detachably coupled to the boat, and the boat is processed together with a plurality of substrates for dye adsorption processing.
- the arm is detached from the boat while being accommodated in the tank, and the arm is coupled to the boat when the boat is transported outside the processing tank or when it is taken in and out of the processing tank.
- the first transport unit includes an arm integrally coupled to the boat, and an upper lid fixing unit that detachably fixes the upper lid to the arm, and for the dye adsorption process.
- the upper opening of the processing tank is closed with the upper lid while the upper lid is fixed to the arm by the upper lid fixing portion.
- a dye adsorption apparatus is a dye adsorption apparatus that adsorbs a dye to a porous semiconductor layer formed on a surface to be processed of a substrate, and has a plurality of substrates parallel to the surface to be processed.
- a dye solution supply unit for supplying the dye solution in the treatment tank so as to be immersed in a dye solution in which the dye is dissolved in a solvent, and the flow direction of the dye solution in the treatment tank during the dye adsorption process Are switched by the dye solution supply unit.
- a dye adsorption apparatus is a dye adsorption apparatus that adsorbs a dye to a porous semiconductor layer formed on a surface to be processed of a substrate, and has a plurality of substrates parallel to the surface to be processed.
- a processing tank accommodated in a row, an upper lid for closing an upper surface opening of the processing tank, a first transfer unit for taking a plurality of substrates into and out of the processing tank, and a plurality of substrates in the processing tank A flow for switching the flow direction of the dye solution in the treatment tank during the dye adsorption process, and a dye solution supply unit for supplying the dye solution into the treatment tank so that the dye is immersed in a dye solution in a solvent And a control unit.
- batch-type dye adsorption treatment is performed on a plurality of substrates in the treatment tank.
- a flow of the dye solution is formed in the processing tank under the condition that the upper surface opening of the processing tank is closed by the upper lid, and the surface to be processed of the substrate is exposed to the flow of the high-pressure dye solution. .
- the penetration of the dye solution into the surface to be treated of the substrate can be promoted, and the treatment time can be greatly shortened.
- the dye adsorption method of the present invention is a dye adsorption method for adsorbing a dye to a porous semiconductor layer formed on a surface to be processed of a substrate, and a plurality of substrates are arranged in a line with the surfaces to be processed in parallel.
- a first step of storing in a treatment tank a second step of supplying a dye solution in which a dye is dissolved in a solvent, into the treatment tank in a first direction parallel to the surface to be treated, and a dye solution
- a batch type dye adsorption process is performed on a plurality of substrates in a treatment tank.
- the penetration of the dye solution into the surface to be treated of the substrate can be promoted, and the treatment time can be greatly shortened.
- the processing time of the step of adsorbing the dye to the porous semiconductor layer formed on the surface to be processed of the substrate is greatly increased by the configuration and operation as described above. It can be shortened.
- FIG. 1 is a perspective view illustrating an overall configuration of a dye adsorption processing system including a dye adsorption device according to an embodiment of the present invention. It is a perspective view which shows the structure of the conveyance mechanism for conveying a board
- FIG. 1 and 2 show the overall configuration of a dye adsorption processing system including a dye adsorption device according to an embodiment of the present invention.
- This dye adsorption processing system is used, for example, in a process of adsorbing a sensitizing dye to a porous semiconductor layer in a production process of a dye-sensitized solar cell.
- the transparent substrate 208 (FIG. 20) on which the transparent electrode 200 and the porous semiconductor layer 204 are formed before the opposing members (the counter electrode 202, the counter substrate 210, and the electrolyte layer 206) are combined is the dye. It becomes the to-be-processed substrate G in the suction device. Further, the substrate G, the surface of the semiconductor layer 204 is formed is the treatment surface or table plane G S.
- the transparent substrate 208 is made of a transparent inorganic material such as quartz or glass, or a transparent plastic material such as polyester, acrylic or polyimide.
- the transparent electrode 200 is made of, for example, fluorine-doped SnO 2 (FTO) or indium-tin oxide (ITO).
- the porous semiconductor layer 204 is made of a metal oxide such as TiO 2 , ZnO, SnO 2 , for example.
- the substrate G to be processed has a predetermined shape (for example, a quadrangle) and a predetermined size, and the dye adsorbed by a transport vehicle or a transport robot (not shown) while being stored in the cassette C in a predetermined number (for example, 25). It is carried into / out of the processing system.
- the dye adsorption processing system includes a cassette loading / unloading unit 10 for loading / unloading a cassette C, and removal of an unprocessed substrate G from the cassette C and processing to the cassette C.
- a loader / unloader unit 12 in which the substrate G is stored and a processing unit 14 in which a batch type dye adsorption process and post-processing (rinsing and drying) are performed on the substrate G are provided.
- the transfer arm 16 moves the cassette C storing the unprocessed substrates G from the cassette loading / unloading unit 10 to the loader / unloader unit 12, and the processing is performed.
- the cassette C storing the finished substrate G is transferred from the loader / unloader unit 12 to the cassette loading / unloading unit 10.
- the transfer of the substrate G is performed in units of a predetermined batch processing number (for example, 50) between the transfer device 18 in the processing unit 14 and the cassette C.
- the transfer device 18 includes a chuck unit 26 that detachably holds the batch-processed (50) processed substrates G in a horizontal row, and a unit arrangement direction (X direction) in the processing unit 14. And a conveying drive unit 28 that drives the chuck unit 26 on each unit 20, 22, 24 by moving horizontally along a rail 27 that extends in the direction of the axis.
- the chuck unit 26 of the transport device 18 includes three parallel chuck arms 26a, 26b, and 26c extending in the horizontal direction.
- the lower fixed chuck arm 26a in the middle holds the lower edge of each substrate G by a holding groove formed in a row on the upper surface thereof.
- the pair of left and right movable chuck arms 26b and 26c can be opened and closed while drawing an outer circular arc, and the edges of the left and right sides of each substrate G are held by holding grooves formed in a row on the inner side thereof. It has become.
- the dye adsorption unit 20 includes a treatment tank 30 having an open top surface and performs processing for batch dye adsorption processing on a batch processing number (50 in this example) of substrates G.
- a boat 32 that can enter and exit from the upper surface opening of the processing tank 30, a boat transport unit 34 for taking the boat 32 into and out of the processing tank 30, and an upper surface opening of the processing tank 30 are provided.
- an upper lid 36 for detachably closing the lid.
- the boat 32 has four parallel bar-shaped (or plate-shaped) holding portions 38a, 38b, 38c, and 38d that extend in the horizontal direction at predetermined intervals in the vertical and horizontal directions.
- a large number (50) of holding grooves M are formed on the inner side surfaces or upper surfaces of the holding portions 38a to 38d for detachably holding the batch-processed (50) substrates G in a horizontal row.
- the left and right upper holding portions 38a and 38b hold the edges of the left and right sides of the substrate G by holding grooves M formed in a row on the respective inner side surfaces.
- the left and right lower holding portions 38c and 38d hold the edge of the lower side of the substrate G by holding grooves M formed in a row on the respective upper surfaces.
- each pair of adjacent (odd and even) substrates G and G have their processing surfaces G S and G S opposite to each other, that is, back to back.
- a permanent magnet 42 is attached to the back surface of the support plate 40 that integrally connects one end of each of the holding portions 38a, 38b, 38c, 38d of the boat 32 on the opposite side as viewed from the conveying device 18 side.
- an electromagnet 46 is attached to the lower end portion of the elevating arm 44 that extends in the vertical direction of the boat conveyance unit 34. When the electromagnet 46 is energized and excited by an excitation circuit (not shown), the permanent magnet 42 is attracted to the electromagnet 46 by electromagnetic force, and the boat 32 is integrally coupled to the lifting arm 44. The lifting arm 44 can be separated from the boat 32 by stopping the excitation of the electromagnet 46.
- the elevating arm 44 is coupled to the elevating moving shaft 54 of the elevating tower 52 via a rectangular parallelepiped arm support or operation unit 48 and a horizontal support member 50.
- the lifting / lowering moving shaft 54 is composed of, for example, a ball screw mechanism, and converts the rotational driving force of the motor 56 disposed at the bottom of the lifting / lowering tower 52 into a straight drive in the vertical direction to move the lifting / lowering arm 44 up and down. .
- the elevating tower 52 includes lower and upper horizontal guide rails 68 and 70 that extend parallel to the longitudinal direction of the boat 32, that is, the arrangement direction of the substrates G, in order to prevent the elevating arm 44 from interfering with the upper lid 36 above the processing tank 30. Can be moved along. As a result, the elevating arm 44 moves between a first position (working position) where the processing tank 30 can enter and exit and a second position (retraction position) retracted sideways from the processing tank 30 or its upper space. It can be done.
- the upper lid 36 has a shape and a size corresponding to the upper surface opening of the processing tank 30, and is opened and closed by an upper lid operation unit 72 provided adjacent to the processing tank 30.
- the upper lid operation unit 72 has, for example, an air cylinder or a linear actuator, and is brought into close contact with the upper surface opening of the processing tank 30 by raising and lowering an inverted U-shaped operation rod 74 coupled to the upper lid 36.
- the upper lid 36 is moved between the (closed position) and a second position (open position) that is spaced upward from the upper surface opening of the treatment tank 30.
- the upper lid operating unit 72 is arranged to prevent the upper lid 36 from interfering with the lifting arm 44 above the processing tank 30 when the boat 32 and the substrate G are taken in and out of the processing tank 30. It can move in a direction away from the boat transport section 34 along a horizontal guide rail 76 extending in parallel.
- FIG. 5 shows the configuration of the dye solution supply unit and the flow control unit in the dye adsorption unit 20 of this embodiment.
- the first and second dye solution supply units 80 and 82 are provided to supply the dye solution into the processing tank 30, and the flow of the dye solution is controlled in the processing tank 30 during the processing.
- First and second flow controllers 84 and 86 are provided.
- Left and right inner walls (a pair of inner walls facing in the X direction) of the processing tank 30 are provided with left upper and lower ports 88L and 90L and right upper and lower ports 88R and 90R, respectively.
- the left upper port 88L and the right upper port 88R are provided at a height position near the upper surface opening of the processing tank 30, and extend or are scattered in the longitudinal direction (Y direction) of the processing tank 30.
- the left lower port 90L and the right lower port 90R are provided at a height position near the bottom surface of the processing tank 30 and extend or are scattered in the longitudinal direction (Y direction) of the processing tank 30.
- the first dye solution supply unit 80 and the first flow control unit 84 are connected to the upper left port 88L and the lower right port 90R of the processing tank 30.
- the second dye solution supply unit 82 and the second flow control unit 86 are connected to the right upper port 88R and the left lower port 90L of the processing tank 30. Specific configurations and operations of the dye solution supply units 80 and 82 and the flow control units 84 and 86 will be described in detail later.
- the dye solution used in the dye adsorption unit 20 is a sensitizing dye dissolved in a solvent at a predetermined concentration.
- a sensitizing dye for example, a metal complex such as metal phthalocyanine, or an organic dye such as a cyanine dye or a basic dye is used.
- the solvent for example, alcohols, ethers, amides, hydrocarbons and the like are used.
- One or a plurality of drain ports 92 are provided on the bottom surface of the treatment tank 30.
- the drain port 92 communicates with a drain tank (not shown) through a drain pipe 94.
- An opening / closing valve 96 is provided in the middle of the drain pipe 94.
- the batch processing number of substrates G subjected to the batch dye adsorption processing in the processing tank 30 are arranged in a row with their processing surfaces G S side by side in the boat.
- 32 holding parts 38a, 38b, 38c, 38d not only hold the left and right side edges and the lower side edge, but also support members 98, 100 provided on the treatment tank 30 and the upper lid 36, respectively, and the rear and upper side edges. Is supported.
- the support member 98 of the treatment tank 30 extends horizontally upward from the horizontal support plate 102 fixed to the bottom surface of the treatment tank 30 and preferably near the top opening of the treatment tank 30. It has a predetermined number (for example, 25) of rod-like or plate-like body projecting portions 104.
- the main body overhanging portions 104 are arranged in a line in the same direction (Y direction) at a predetermined interval corresponding to the batch processing number (50 sheets) of substrates G arranged in a row on the boat 32. A plurality are provided.
- the number of substrates G processed in batch on the boat 32 is such that each pair of adjacent substrates G, G has their processing surfaces G S , G S opposite to each other, that is, back to back. Arranged in a row. As shown in FIGS. 6 and 7, each main body overhanging portion 104 is located between each pair of substrates G, G adjacent to each other in such a back-to-back manner, and the substrate width direction (X In the center of the direction).
- the support member 100 of the upper lid 36 has a predetermined number (for example, 25 pairs of left and right) of rod-like or plate-like lid projecting portions 106 that extend vertically downward from the lower surface of the upper lid 36.
- the lid overhanging portions 106 are arranged in two rows in the same direction (Y direction) at a predetermined interval corresponding to the batch processing number (50) of substrates G arranged in a horizontal row on the boat 32. A plurality are provided side by side.
- a seal member for example, an O-ring 108 is attached to the peripheral edge of the lower surface of the upper lid 36 to seal the inside of the processing tank 30 when the upper surface opening of the processing tank 30 is closed.
- each pair of substrate G phase adjacent back to back in the processing tank 30, of G one of the substrates G is the substrate G adjacent opposite each treated surface G S, G S is opposed to each other, and the other substrate G is opposed to the adjacent substrate G on the opposite side with the processing surfaces G S and G S being opposed to each other.
- the distribution space RS is such that the dye solution flows freely and smoothly in the width direction (X direction) of the substrate.
- the main body overhanging portion 104 and the lid overhanging portion 106 act as baffles between the pair of substrates G, G adjacent to each other back to back, the width direction of the substrate (X Direction), the residence space TS is difficult for the dye solution to flow.
- the distribution space RS and the staying space TS are alternately formed across the substrate G along the arrangement direction (Y direction) of the substrates G.
- the treated surface G S faces the distribution space RS
- the back surface is adapted to face the retention space TS.
- the discharge ports (or suction ports) of the left ports 88L and 90L and the right ports 88R and 90R are arranged at positions facing each other in the substrate width direction (X direction) via each distribution space RS.
- the second flow control unit 86 when the second flow control unit 86 is operated to control the flow of the dye solution in the processing tank 30 using the right upper port 88R and the left lower port 90L, the right upper port many of the dye solution introduced into from the processing bath 30 88R flows through the treated surface the distribution space in the RS along G S of the substrate G, so as to reach the left lower port 90L of the outlet (suction port) It has become.
- the width size of the circulation space RS is relatively large, and the width size of the staying space TS is relatively small.
- the efficiency of the dye solution flowing in the treatment tank 30 permeating into the porous semiconductor layer 204 (FIG. 19) formed on the treated surface G S of each substrate G can be further improved.
- FIG. 8 shows a specific configuration example of the dye solution supply units 80 and 82 and the flow control units 84 and 86 in this embodiment.
- the first dye solution supply unit 80 and the first flow control unit 84 partially or partially include the first tank 110, the first pump 112, the first control valve 114, the plurality of on-off valves 116 to 126, and the plurality of pipes 128 to 136. All have in common.
- the first tank 110 stores a dye solution used for the dye adsorption process.
- the entry side of the first pump 112 is connected to the first tank 110 via a pipe 128.
- An on-off valve 116 is provided in the middle of the pipe 128.
- the outlet side of the first pump 112 is connected to the left upper port 88L of the processing tank 30 via the first control valve 114 and the pipe 130 and is connected to the right side of the processing tank 30 via the first control valve 114 and the pipe 132. It is connected to the lower port 90R.
- An on-off valve 118 is provided in the middle of the pipe 130, and on-off valves 120 and 122 are provided in the middle of the pipe 132.
- the pipe 134 includes a node N 1 provided on the pipe 128 between the on-off valve 116 and the inlet side of the pump 112 and a node N provided on the pipe 130 between the on-off valve 118 and the left upper port 88L. 2 is connected.
- An opening / closing valve 124 is provided in the middle of the pipe 134.
- the pipe 136 connects the node N 1 and the node N 3 provided on the pipe 132 between the on-off valves 120 and 122.
- An on-off valve 126 is provided in the middle of the pipe 136.
- a temperature controller 138 for adjusting the temperature of the dye solution to a predetermined temperature (for example, 40 ° C. to 60 ° C.) suitable for the dye adsorption process is attached to the first tank 110.
- the second dye solution supply unit 82 and the first flow control unit 86 provide a second tank 140, a second pump 142, a second control valve 144, a plurality of on-off valves 146 to 156, and a plurality of pipes 158 to 166. Part or all in common.
- the second tank 140 stores a dye solution used for the dye adsorption process.
- the entry side of the second pump 142 is connected to the second tank 140 via a pipe 158.
- An on-off valve 146 is provided in the middle of the pipe 158.
- the outlet side of the second pump 142 is connected to the upper right port 88R of the processing tank 30 via the second control valve 144 and the pipe 160, and is also connected to the left side of the processing tank 30 via the second control valve 144 and the pipe 162. It is connected to the lower port 90L.
- An on-off valve 148 is provided in the middle of the pipe 160, and on-off valves 150 and 152 are provided in the middle of the pipe 162.
- the pipe 164 includes a node N 4 provided on the pipe 158 between the on-off valve 146 and the inlet side of the pump 142, and a node N provided on the pipe 160 between the on-off valve 148 and the right upper port 88R. 5 is tied.
- An on-off valve 154 is provided in the middle of the pipe 164.
- the pipe 166 connects the node N 4 and the node N 6 provided on the pipe 162 between the on-off valves 150 and 152.
- An on-off valve 156 is provided in the middle of the pipe 166.
- a temperature controller 168 for adjusting the temperature of the dye solution to a predetermined temperature (for example, 40 ° C. to 60 ° C.) suitable for the dye adsorption process is attached to the second tank 140.
- the controller 170 has a microcomputer and a required interface, and controls the operation of each part in the dye adsorption unit 20 and the entire apparatus (sequence) including the above-described movable system (FIGS. 3 and 4). Control.
- a pressure gauge 172 is attached to the processing tank 30.
- the pressure gauge 172 measures the pressure at a predetermined position inside the processing tank 30 (for example, a position close to the upper surface opening).
- the controller 170 monitors or feeds back the pressure measurement value K P from the pressure gauge 172 to control the operations of the flow controllers 84 and 86. [Operation of dye adsorption unit / substrate loading operation]
- the transport device 18 (FIGS. 1 and 2) is configured to load and unload the rail 27 on the rail 27 by the transport drive unit 28 while the chuck unit 26 holds the unprocessed substrates G (50 sheets) arranged in a horizontal row. It moves from the part 12 to the dye adsorption unit 20 (FIG. 9A).
- the transfer device 18 attaches the chuck portion 26 that holds the unprocessed substrate G directly above the processing tank 30.
- the boat transport unit 34 moves the lifting / lowering arm 44 from the retracted position to the working position, lowers it into the boat 32, excites the electromagnet 46, and couples the lifting / lowering arm 44 to the boat 32.
- the boat transport unit 34 lifts the lifting arm 44 integrally with the empty boat 32 (FIG. 10).
- the holding grooves M formed in the holding portions 38a, 38b, 38c, and 38d of the boat 32 are engaged with the left and right side edges and the lower edge of each corresponding substrate G.
- the conveyance device 18 retracts the left and right movable chuck arms 26b and 26c to the outside in conjunction with the upward movement of the boat 32.
- the batch-processed (50) unprocessed substrates G are transferred from the chuck portion 26 of the transfer device 18 to the boat 32 while maintaining the state in which the batch-processed (50) unprocessed substrates G are aligned in a horizontal row (see FIG. 11A, FIG. 11B).
- the transfer device 18 moves the chuck portion 26 laterally (in the X direction) at a height position between the boat 32 and the processing tank 30, and then moves from the dye adsorption unit 20 to another unit (22, 24) or a loader Head to unloader 12.
- the boat transfer unit 34 lowers the lifting arm 42 integrally with the boat 32, and the lifting arm 42, the boat 32, and a predetermined number (50) of unprocessed substrates G on the boat 32 are processed into the processing tank. It carries in or accommodates in 30 (FIG. 12A, FIG. 12B). At this time, the dye solution may be contained in the treatment tank 30, but it may be empty without being contained at all.
- the boat transfer unit 34 releases the excitation of the electromagnet 46 and moves up and down.
- the arm 42 is separated from the boat 32 and retracted out of the processing tank 30.
- the upper lid operation unit 72 lowers the upper lid 36 and closes the upper surface opening of the processing tank 30 with the upper lid 36.
- the upper lid operation unit 72 can be provided with a function of pressing the upper lid 36 during processing and maintaining the hermeticity in the treatment tank 30.
- the dye solution supply mode is first selected.
- the first and second dye solution supply units 80 and 82 operate simultaneously. More specifically, as shown in FIG. 13A, in the first dye solution supply unit 80, the first pump 112 is turned on, the on-off valves 116, 118, 120, 122 are opened (on), and the others. Open / close valves 124 and 126 are closed (off). As a result, the dye solution pumped from the first tank 110 by the first pump 112 is supplied into the processing tank 30 from the left upper port 88L and the right lower port 90R through the pipes 130 and 132.
- the second pump 142 is turned on, the on-off valves 146, 148, 150, 152 are opened (on), and the other on-off valves 154, 156 are closed (off). ) State.
- the dye solution pumped from the second tank 140 by the second pump 142 is supplied into the processing tank 30 from the right upper port 88R and the left lower port 90L through the pipes 160 and 162.
- first and second dye solution supply units 80 when there is not much deficiency of the dye solution in the treatment tank 30, only one side of the first and second dye solution supply units 80, for example, only the first dye solution supply unit 80 may be operated. In that case, both the left upper port 88L and the right lower port 90R may be used, but only one of them may be used. For example, when only the upper left port 88L is used as the supply port, only the on-off valve 116 of the pipe 128 and the on-off valve 118 of the pipe 132 are opened (on), and all the other on-off valves are closed (off). Just keep it.
- the old solution of the dye solution can be replaced with a new solution in the treatment tank 30 by opening the open / close valve 96 of the drain pipe 94.
- the operation of the upper lid operation unit 72 is delayed, and the processing tank 30 is filled with the dye solution by the dye solution supply units 80 and 82, and then the upper lid 36 is removed. It may be lowered to close the upper surface opening of the processing tank 30.
- the dye adsorption process is started. Normally, the flow controllers 84 and 86 start operating simultaneously with the start of the dye adsorption process.
- various modes can be selected in relation to the flow of the processing solution in the processing tank 30.
- a mode first and second flow modes in which the second flow control unit 86 is stopped and only the first flow control unit 84 is operated can be selected.
- the first flow control unit 84 turns on the first pump 112, opens the on-off valves 118, 122, 126 (on), and sets the other on-off valves 116, 120, 124 is closed (off).
- the dye solution discharged from the outlet side of the first pump 112 is introduced into the treatment tank 30 from the left upper port 88L through the first control valve 114 and the pipe 130.
- the dye solution that has flowed out of the processing tank 30 from the lower right port 90R returns to the inlet side of the first pump 112 through the pipes 132, 136, and 128.
- the second flow control unit 86 keeps the second pump 142 and the on-off valves 146 to 156 in the off state.
- a flow of the dye solution is formed in the processing tank 30 from the left upper port 88L toward the right lower port 90R. That is, the dye solution that has exited from each discharge port of the left upper port 88L reaches each suction port of the right lower port 90R on the opposite side through each distribution space RS that spreads in front.
- the right upper port 88R and the left lower port 90L have no dye solution in and out.
- the pressure in the tank is considerably higher than when the upper surface opening is open to the atmosphere, and the flow of the dye solution into each distribution space RS under this high pressure. Is formed.
- all the substrates G on the boat 32 accommodated in the treatment tank 30 are exposed to the flow of the high-pressure dye solution with their respective treated surfaces G S facing the distribution space RS. Accordingly, the dye solution to the treated surface G S is quickly and smoothly permeated each substrate G, the porous semiconductor layer 204 of the surface to be processed G S, hardly occur aggregation or association of the dye together with the surface layer portion, The dye is adsorbed quickly and efficiently toward the inner back.
- the first flow control unit 84 turns on the first pump 112, opens the on-off valves 120, 122, and 124 (on), and sets the other on-off valves 116, 118, 126 is closed (off).
- the dye solution discharged from the outlet side of the first pump 112 is introduced into the processing tank 30 from the right lower port 90R through the first control valve 114 and the pipe 132.
- the dye solution that has flowed out of the processing tank 30 from the right upper port 88L returns to the entry side of the first pump 112 through the pipes 130, 134, and 128.
- the second flow control unit 86 keeps the second pump 142 and the on-off valves 146 to 156 in the off state.
- the flow of the dye solution is formed in the processing tank 30 from the right lower port 90R toward the left upper port 88L.
- the dye solution that has exited from each discharge port of the right lower port 90R reaches each suction port of the left upper port 88L on the opposite side through each distribution space RS spreading in front of it.
- the right upper port 88R and the left lower port 90L have no dye solution in and out.
- the mode (third and fourth flow modes) in which the first flow control unit 84 is stopped and only the second flow control unit 86 is operated is selected. You can also
- the second flow control unit 8 turns on the second pump 142, opens the on-off valves 148, 152, 156, and opens the other on-off valves 146, 150, 154 is closed (off).
- the dye solution discharged from the outlet side of the second pump 142 is introduced into the treatment tank 30 from the right upper port 88R through the second control valve 144 and the pipe 160.
- the dye solution that has flowed out of the processing tank 30 from the left lower port 90L returns to the entry side of the second pump 142 through the pipes 162, 166, and 158.
- the first flow control unit 84 keeps all of the first pump 112 and the on-off valves 116 to 126 in the off state.
- a flow of the dye solution is formed in the processing tank 30 from the right upper port 88R toward the left lower port 90L. That is, the dye solution that has exited from each discharge port of the right upper port 88R reaches each suction port of the left lower port 90L on the opposite side through each distribution space RS that spreads in front of it.
- the left upper port 88L and the right lower port 90R do not allow the dye solution to enter and exit.
- the second flow control unit 86 turns on the second pump 142, opens the on-off valves 150, 152, 154, and turns on the other on-off valves 146, 148, 156 is closed (off).
- the dye solution discharged from the outlet side of the second pump 142 is introduced into the treatment tank 30 through the second control valve 144 and the pipe 162 from the left lower port 90L.
- the dye solution that has flowed out of the processing tank 30 from the right upper port 88R returns to the entry side of the second pump 142 through the pipes 160, 164, and 158.
- the first flow control unit 84 keeps all of the first pump 112 and the on-off valves 116 to 126 in the off state.
- the flow of the dye solution is formed in the processing tank 30 from the left lower port 90L toward the right upper port 88R. That is, the dye solution that has exited from each discharge port of the left lower port 90L reaches each suction port of the right upper port 88R on the opposite side through each distribution space RS that spreads in front of it. Again, the left upper port 88L and the right lower port 90R do not allow the dye solution to enter or exit.
- the dye solution is circulated between the inside and outside of the treatment tank 30, so that the dye in the dye solution gradually decreases as the dye adsorption process proceeds.
- the concentration of the dye solution gradually decreases. Therefore, in order to maintain or recover the concentration of the dye solution within the set range, the open / close valve 96 of the drain pipe 94 is opened (on), for example, as shown in FIG. It is preferable to appropriately switch to a mode (fifth flow mode) in which the flow of the dye solution is controlled while replacing the old solution of the dye solution with the new solution in the tank 30.
- the first and second flow control units 84 and 86 turn on the first and second pumps 112 and 142, respectively, and the on-off valves (116 and 118) and (146 and 148). Are opened (ON), and the other on-off valves (120, 122, 124, 126) and (150, 152, 154, 156) are closed (OFF).
- the dye solution (new liquid) discharged from the outlet sides of the first and second pumps 112 and 142 passes through the first and second control valves 114 and 144 and the pipes 130 and 160, and the left and right upper ports. 88L and 88R are introduced into the treatment tank 30.
- the dye solution (old solution) that has flowed out of the processing tank 30 from the drain port 92 is sent to the drain tank through the drain pipe 94 or collected. In this manner, the old and new replacement of the dye solution is performed from the top to the bottom (bottom) in the processing tank 30.
- the dye solution that has exited from the discharge ports of the left and right upper ports 88 ⁇ / b> L and 88 ⁇ / b> R reaches the drain port at the bottom through each distribution space RS that spreads in front. Also in this case, all the substrates G on the boat 32 accommodated in the treatment tank 30 are exposed to the flow of the high-pressure dye solution with their respective treated surfaces G S facing the distribution space RS. Accordingly, the dye solution to the surface to be processed G S of each substrate G is quickly and smoothly permeated, dyes toward the inner back from the surface layer to the porous semiconductor layer 204 of the surface to be processed G S efficiently rapidly adsorbed Is done.
- the fifth flow mode it is possible to operate only one of the first and second flow control units 84 and 86 and stop the other.
- the dye adsorption processing sequence can be programmed by arbitrarily combining the various types of flow modes as described above.
- the efficiency or speed of dye adsorption can be further increased.
- the dye solution in the processing tank 30 is used during processing using the pressure control function or flow rate control function of the control valves 114 and 144 provided in the first and second flow control units 84 and 86. It is also possible to arbitrarily vary the pressure or the flow rate.
- this type of dye adsorption treatment as described above, the dye solution is immersed in the porous semiconductor layer on the surface to be treated of the substrate, and the dye is adsorbed from the surface layer of the semiconductor layer toward the inside. The efficiency or speed of dye adsorption tends to decrease over time.
- a method of linearly increasing the pressure or flow rate in the treatment tank 30 as the treatment time elapses, or a step or step of the pressure or flow rate in the treatment tank 30 during the treatment time (particularly preferably in the latter half or just before the end). It is possible to suitably adopt the method of raising
- a flow of the dye solution is formed in the treatment tank 30 under high pressure, and the surface G S to be processed of the substrate G is exposed in the flow of the dye solution.
- aggregation or association of the dye between the dye into the inner depths of the porous semiconductor layer 204 is efficiently penetrate the surface layer portion of the porous semiconductor layer 204 of the substrate surface to be processed G S during processing, porous
- the dye adsorption to the porous semiconductor layer 204 proceeds at a high speed.
- the plurality of substrates G subjected to the batch type dye adsorption process in the treatment tank 30 are backed by the support members 98 and 100 provided on the treatment tank 30 and the upper lid 36, respectively.
- the upper edge is supported, it is less likely to bend or tilt with respect to the pressure received from the flow space RS side in the flow of the dye solution. Thereby, damage or deformation of the substrate G can be prevented.
- projection parts 104 and 106 of the supporting members 98 and 100 contact the back surface of the board
- the overhang portions 104 and 106 of the support members 98 and 100 not only keep the posture of the substrate G stable in the processing tank 30 as described above, but also allow the flow of the dye solution along the back surface of the substrate G as described above. As a reflective effect, the flow of the dye solution along the front surface (surface to be processed) G S of the substrate G is promoted, and the effect of promoting the dye adsorption efficiency is exhibited.
- the upper lid operation unit 72 is operated to lift the upper lid 36 upward to open the upper surface opening of the processing tank 30 to the atmosphere.
- the boat transport unit 34 moves the lifting arm 44 from the retracted position to the working position and lowers it into the boat 32, excites the electromagnet 46, and couples the lifting arm 44 to the boat 32.
- the boat 32 on which the processed substrate G is placed is lifted together with the lifting arm 44.
- the dye adsorption unit 26 is in an empty state in which the transport device 18 (FIGS. 1 and 2) does not hold the substrate by the chuck portion 26 and the left and right movable chuck arms 26b and 26c are spread outward.
- the chuck portion 26 is attached directly above the processing tank 30.
- the transfer device 18 brings the left and right movable chuck arms 26b and 26c inward at a predetermined timing, and enters the holding grooves of both the movable chuck arms 26b and 26c.
- the left and right sides of the substrate G are held.
- the processed substrates G of the batch processing number are transferred from the boat 32 to the chuck portion 26 of the transport device 18 while maintaining a state in which the processed substrates G are arranged in a horizontal row.
- the transfer device 18 When the transfer device 18 receives the processed substrates G in the batch processing number as described above, the transfer device 18 moves from the dye adsorption unit 20 to the adjacent rinsing unit 22 and causes the processed substrates G to be rinsed.
- the rinsing unit 22 has a known apparatus configuration. For example, the rinsing liquid is sprayed uniformly on the processed substrate G by a rinsing nozzle to rinse the dye solution attached to the front surface and the back surface of each substrate G. Replace with liquid.
- the batch processed number of processed substrates G that have been rinsed by the rinsing unit 22 are carried into the adjacent drying unit 24 by the transfer device 18.
- the drying unit 24 also has a known device configuration, for example, sprays dry air or (nitrogen gas) onto each substrate by an air nozzle to remove the rinse liquid attached to the front surface and the back surface of each substrate G. .
- the batch-processed substrates G having been subjected to the drying process in the drying unit 22 are transferred to the adjacent loader / unloader unit 12 by the transport device 18.
- the batch-processed (50) processed substrates G are divided into two sets of 25 sheets each from the chuck unit 26 of the transport device 18 and transferred to two cassettes C.
- the processed substrate G transferred to the cassette C is transferred to the set loading / unloading unit 10 by the transfer arm 16, and is discharged from the dye adsorption processing system (FIG. 1) by the transfer vehicle or the transfer robot.
- FOG. 1 dye adsorption processing system
- the pressure in the processing tank 30 can be varied or adjusted by using the pressure control function of the control valves 114 and 144 provided in the first and second flow control units 84 and 86.
- the pressure in the processing tank 30 can be varied or adjusted by using the pressure control function of the control valves 114 and 144 provided in the first and second flow control units 84 and 86.
- FIG. 14A when the drive shaft 174 is advanced or raised to contract the bellows 170, the volume of the processing tank 30 decreases and the pressure increases.
- FIG. 14B when the bellows 170 is extended by retracting or lowering the drive shaft 174, the volume of the processing tank 30 increases and the pressure decreases.
- a now pack that accommodates a slightly smaller treatment tank 30 ′ made of a flexible material with a sealable gap 180 sandwiched inside an outer tank 178 made of a rigid material.
- Commodity name a fluid such as compressed air into and out of the gap 180 from outside.
- the treatment tank 30 ′ can be contracted or expanded, and the pressure in the treatment tank 30 ′ can be varied or adjusted.
- the support members 98 and 100 for supporting the substrate G on the back surface side are provided on both the processing tank 30 and the upper lid 36, respectively.
- the support member 98 is provided on only one of the processing tank 30 and the upper lid 36.
- a configuration in which (100) is provided is also possible.
- a configuration in which the body overhanging portion 104 of the support member 98 provided in the processing tank 30 is plural (for example, three) is also possible.
- a configuration in which the lid overhanging portion 106 of the support member 100 provided on the upper lid 36 is extended to a position reaching the lower end of the substrate G is possible.
- the batch processing number of substrates G held on the boat 32 in the processing tank 30 is such that each pair of adjacent substrates G and G has their surfaces G S and G S opposite to each other. They are arranged in a direction, that is, back to back with each other. And the structure by which the main body overhang
- a configuration in which all (or part) of the substrates G on the boat 32 are arranged in a horizontal row with their respective surfaces to be processed in the same direction is also possible. As shown in FIG.
- the main body overhanging portion 104 and / or the substrate supporting portion 98 is arranged.
- substrate support part 100 when ensuring sufficient space (distribution space) on the to-be-processed surface side of the board
- the overhanging portions 104 and 106 of the substrate support portions 98 and 100 are not limited to the configuration extending only in the vertical direction, and for example, the configuration extending in the horizontal direction as shown in FIG. 18 or the lattice shape as shown in FIG. It is also possible to adopt a configuration.
- the overhang portions 104 and 106 of the substrate support portions 98 and 100 have not only a function of holding the substrate G on the back surface side but also a function of suppressing the flow of the dye solution along the back surface of the substrate. It was. However, there is also a configuration in which the overhang portions 104 and 106 have only a baffle function for suppressing the flow of the dye solution along the back surface of the substrate without contacting the substrate G to the back surface, that is, without having a substrate support function. Is possible.
- the processing tank 30 is provided with the left upper port 88L, the right upper port 88R, the left lower port 90L, and the right lower port 90R, and the dye solution supply units 80 and 82 and the flow control units 84 and 86 are Some or all of these ports 88L, 88R, 90L, 90R are shared. However, it is also possible for the dye solution supply units 80 and 82 and / or the flow control units 84 and 86 to use individual ports.
- the flow control units 84 and 86 are provided separately from the dye solution supply units 80 and 82.
- the dye solution supply units 80 and 82 are configured to include the functions of the flow control units 84 and 86 or to switch the flow direction of the dye solution in the processing tank 30 during processing. It is also possible to do.
- the configuration around the boat 32 can be modified in various ways.
- the permanent magnet 42 is attached to the boat 32 and the electromagnet 46 is attached to the lift arm 44 in order to detachably couple the lift arm 44 of the boat transport unit 34 to the boat 32 by electromagnetic force.
- the lifting arm 44 is coupled to the boat 32 by a mechanical attachment / detachment method instead of the electromagnetic force.
- the lifting arm 44 is integrally coupled to the boat 32 and an upper lid fixing portion (not shown) for detachably fixing the upper lid 36 to the lifting arm 44 is also possible.
- the upper lid 36 is fixed to the elevating arm 44 by the upper lid fixing portion. Then, the upper surface opening of the processing tank 30 is closed with the upper lid 36.
- the upper lid fixing portion is released and The upper lid 36 is retracted or the upper lid 36 is separated from the lifting arm 44.
- the boat 32 is used.
- a plurality of substrates may be accommodated in a row in the processing tank 30 in parallel with the surface to be processed by other methods. Further, it is not necessary to accommodate the substrate in the boat 32 with the surface to be processed facing sideways.
- the substrate may be accommodated in the boat 32 with the surface to be processed facing up or down or in another direction.
- the dye solution is supplied in a first direction parallel to the surface to be processed. Then, the dye solution is supplied by switching to a second direction that is different from the first direction and parallel to the surface to be processed.
- the processing time can be greatly shortened by switching the supply direction of the dye solution.
- the present invention can be particularly suitably applied to the step of adsorbing the sensitizing dye to the porous semiconductor layer in the manufacturing process of the dye-sensitized solar cell as described above.
- the present invention can be applied to a process of adsorbing an arbitrary dye on an arbitrary porous semiconductor layer or an arbitrary thin film formed on the surface to be processed of the substrate.
- Dye Adsorption Processing Unit 18 Conveying Device 20 Dye Adsorption Unit (Dye Adsorption Device) 26 Chuck part 28 Transport drive part 30 Processing tank 32 Boat 34 Boat transport part 36 Upper lid 38a, 38b, 38c Holding part 44 Lifting arm 46 Electromagnet 72 Upper lid operation part 80 First dye solution supply part 82 Second dye solution supply part 84 First 1 flow control unit 86 second flow control unit 88L left upper port 88R right upper port 90L left upper port 90R right upper port 98,100 substrate support 104 main body extension 106 Lid overhanging part 170 Controller
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Abstract
Description
[システム全体の構成]
[色素吸着ユニットの構成]
[色素吸着ユニットの作用/基板搬入動作]
[色素吸着ユニットの作用/色素溶液供給・流れ制御の動作]
[他の実施形態または変形例]
18 搬送装置
20 色素吸着ユニット(色素吸着装置)
26 チャック部
28 搬送駆動部
30 処理槽
32 ボート
34 ボート搬送部
36 上蓋
38a,38b,38c 保持部
44 昇降アーム
46 電磁石
72 上蓋操作部
80 第1色素溶液供給部
82 第2色素溶液供給部
84 第1流れ制御部
86 第2流れ制御部
88L 左側上部ポート
88R 右側上部ポート
90L 左側上部ポート
90R 右側上部ポート
98,100 基板支持部
104 本体張出部
106 蓋体張出部
170 コントローラ
Claims (20)
- 基板の被処理面に形成されている多孔質の半導体層に色素を吸着させる色素吸着装置であって、
前記基板の被処理面を横に向けて前記基板を一列に複数並べて着脱可能に保持するボートと、
前記ボートおよびこれに保持される前記複数の基板を上面開口から出し入れ可能に収容する処理槽と、
前記処理槽の上面開口を塞ぐための上蓋と、
前記ボートを前記処理槽に出し入れするための第1の搬送部と、
前記処理槽内で前記ボートに保持される前記複数の基板が前記色素を溶媒に溶かした色素溶液に浸かるように、前記処理槽内に前記色素溶液を供給する色素溶液供給部と、
処理中に前記処理槽内で前記色素溶液の流れを制御するための流れ制御部と
を有する色素吸着装置。 - 処理中に前記上蓋を被せられている前記処理槽内の前記色素溶液の液面の圧力は大気圧よりも高い、請求項1に記載の色素吸着装置。
- 処理中に前記上蓋を被せられている前記処理槽の内部が隙間なく前記色素溶液で満たされる、請求項1に記載の色素吸着装置。
- 前記処理槽にそれぞれ少なくとも1つの第1および第2のポートが設けられ、
前記色素溶液供給部は、前記第1および第2のポートの少なくとも一方を用いて前記処理槽への前記色素溶液の供給を行い、
前記流れ制御部は、前記第1のポートと前記第2のポートとを用いて前記色素溶液の流れの制御を行う、
請求項1に記載の色素吸着装置。 - 前記流れ制御部は、前記処理槽の中と外との間で前記色素溶液を循環させる、請求項4に記載の色素吸着装置。
- 前記色素溶液供給部は、前記第1のポートと前記第2のポートとを用いて前記処理槽内で前記色素溶液の旧液を新液と置換する、請求項4に記載の色素吸着装置。
- 前記流れ制御部は、前記第1のポートと前記第2のポートとを用いて前記処理槽内で前記色素溶液の旧液を新液と置換しながら前記色素溶液の流れを制御する、請求項4に記載の色素吸着装置。
- 前記処理槽に排液用の第3のポートが設けられ、
前記色素溶液供給部は、前記第1および第2のポートの少なくとも一方と前記第3のポートとを用いて前記処理槽内で前記色素溶液の旧液を新液と置換し、
前記流れ制御部は、前記第1および第2のポートの少なくとも一方と前記第3のポートとを用いて前記処理槽内で前記色素溶液の旧液を新液と置換しながら前記色素溶液の流れを制御する、
請求項4に記載の色素吸着装置。 - 前記流れ制御部は、処理中に前記色素溶液の流れの向きを切換または可変する、請求項1に記載の色素吸着装置。
- 前記流れ制御部は、処理中に前記色素溶液の流量を可変する、請求項1に記載の色素吸着装置。
- 前記流れ制御部は、処理中に前記処理槽内の圧力を可変する、請求項1に記載の色素吸着装置。
- 前記処理槽内で各々の前記基板の裏面に沿った前記色素溶液の流れを抑制する流れ抑制部を有する、請求項1に記載の色素吸着装置。
- 前記流れ抑制部は、前記ボート上に一列に並んで保持される前記複数の基板に対応した間隔で一列に並んで前記処理槽に設けられる複数の流れ抑制部材を有し、各々の前記流れ抑制部材が各対応する前記基板の裏面に沿った前記色素溶液の流れを抑制する、請求項12に記載の色素吸着装置。
- 前記ボート上で、前記複数の基板は、相隣接する各一対の前記基板がそれぞれの被処理面を対向させて配置される、請求項1に記載の色素吸着装置。
- 前記第1の搬送部は、
前記ボートと着脱可能に結合するアームを有し、
色素吸着処理のために前記ボートを前記複数の基板と一緒に前記処理槽の中に収容する間は前記アームを前記ボートから離脱させ、
前記ボートを前記処理槽の外で搬送し、または前記処理槽に出し入れする時は前記アームを前記ボートに結合させる、
請求項1に記載の色素吸着装置。 - 前記第1の搬送部は、
前記ボートと一体に結合しているアームを有し、
前記上蓋は、前記アームに固定され、
色素吸着処理のために前記ボートを前記複数の基板と一緒に前記処理槽の中に収容する間は、前記処理槽の上面開口を前記上蓋で塞ぐ、
請求項1に記載の色素吸着装置。 - 前記第1の搬送部と前記複数の基板の受け渡しを行う第2の搬送部を有する、請求項1に記載の色素吸着装置。
- 基板の被処理面に形成されている多孔質の半導体層に色素を吸着させる色素吸着装置であって、
被処理面を平行に複数の基板を一列に並べて収容する処理槽と、
前記処理槽の上面開口を塞ぐための上蓋と、
複数の基板を前記処理槽に出し入れするための第1の搬送部と、
前記処理槽内の複数の基板が色素を溶媒に溶かした色素溶液に浸かるように、前記処理槽内に前記色素溶液を供給する色素溶液供給部と
を有し、
色素吸着処理中に、前記処理槽内の前記色素溶液の流れ方向を、前記色素溶液供給部によって切り換える、
色素吸着装置。 - 基板の被処理面に形成されている多孔質の半導体層に色素を吸着させる色素吸着装置であって、
被処理面を平行に複数の基板を一列に並べて収容する処理槽と、
前記処理槽の上面開口を塞ぐための上蓋と、
複数の基板を前記処理槽に出し入れするための第1の搬送部と、
前記処理槽内の複数の基板が色素を溶媒に溶かした色素溶液に浸かるように前記処理槽内に前記色素溶液を供給する色素溶液供給部と、
色素吸着処理中に、前記処理槽内の前記色素溶液の流れ方向を切り換える流れ制御部と
を有する色素吸着装置。 - 基板の被処理面に形成されている多孔質の半導体層に色素を吸着させる色素吸着方法であって、
被処理面を平行に複数の基板を一列に並べて処理槽に収容する第1の工程と、
色素を溶媒に溶かした色素溶液を、前記被処理面と平行な第1の方向に向けて前記処理槽内に供給する第2の工程と、
色素溶液を、前記第1の方向と異なり、かつ前記被処理面と平行な第2の方向に切り換えて処理槽内に供給する第3の工程と
を有する色素吸着方法。
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EP11842523.0A EP2645468A1 (en) | 2010-11-25 | 2011-09-27 | Dye adsorption apparatus and dye adsorption method |
US13/989,151 US9093222B2 (en) | 2010-11-25 | 2011-09-27 | Dye adsorption apparatus and dye adsorption method |
CN2011800564206A CN103222107A (zh) | 2010-11-25 | 2011-09-27 | 色素吸附装置及色素吸附方法 |
KR1020137013365A KR20140004088A (ko) | 2010-11-25 | 2011-09-27 | 색소 흡착 장치 및 색소 흡착 방법 |
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2011
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- 2011-09-27 US US13/989,151 patent/US9093222B2/en not_active Expired - Fee Related
- 2011-09-27 WO PCT/JP2011/005415 patent/WO2012070176A1/ja active Application Filing
- 2011-09-27 EP EP11842523.0A patent/EP2645468A1/en not_active Withdrawn
- 2011-09-27 CN CN2011800564206A patent/CN103222107A/zh active Pending
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KR20140004088A (ko) | 2014-01-10 |
EP2645468A1 (en) | 2013-10-02 |
US20130316485A1 (en) | 2013-11-28 |
JP2012113981A (ja) | 2012-06-14 |
JP5574929B2 (ja) | 2014-08-20 |
TW201246574A (en) | 2012-11-16 |
US9093222B2 (en) | 2015-07-28 |
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