WO2017170510A1 - メッキ処理方法、メッキ処理装置、および、センサー装置 - Google Patents
メッキ処理方法、メッキ処理装置、および、センサー装置 Download PDFInfo
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- WO2017170510A1 WO2017170510A1 PCT/JP2017/012580 JP2017012580W WO2017170510A1 WO 2017170510 A1 WO2017170510 A1 WO 2017170510A1 JP 2017012580 W JP2017012580 W JP 2017012580W WO 2017170510 A1 WO2017170510 A1 WO 2017170510A1
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/307—Disposable laminated or multilayered electrodes
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D7/00—Electroplating characterised by the article coated
- C25D7/06—Wires; Strips; Foils
- C25D7/0614—Strips or foils
- C25D7/0671—Selective plating
- C25D7/0678—Selective plating using masks
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/1601—Process or apparatus
- C23C18/1603—Process or apparatus coating on selected surface areas
- C23C18/1607—Process or apparatus coating on selected surface areas by direct patterning
- C23C18/1612—Process or apparatus coating on selected surface areas by direct patterning through irradiation means
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/02—Electroplating of selected surface areas
- C25D5/022—Electroplating of selected surface areas using masking means
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/18—Electroplating using modulated, pulsed or reversing current
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D5/00—Electroplating characterised by the process; Pretreatment or after-treatment of workpieces
- C25D5/54—Electroplating of non-metallic surfaces
- C25D5/56—Electroplating of non-metallic surfaces of plastics
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/302—Electrodes, e.g. test electrodes; Half-cells pH sensitive, e.g. quinhydron, antimony or hydrogen electrodes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
Definitions
- the present invention relates to a plating method for performing plating on a substrate using an electrolytic plating method, a plating processing apparatus for performing the plating treatment, and a sensor device formed using the electrolytic plating method.
- Japanese Patent No. 3193721 discloses a portion other than a portion to be electroplated (for example, a portion to be an electrode) when performing electroplating on a conductive material uniformly formed on a substrate.
- a method of manufacturing a sensor electrode for detecting a specific component such as glucose by selectively applying electroplating by covering the substrate with a resist layer is disclosed.
- the resist layer must be precisely patterned by superimposing it on a part of the conductive pattern. .
- the patterning accuracy becomes more strict and the patterning operation becomes difficult. For this reason, it has been impossible to easily perform selective plating on the portion to be electroplated.
- the substrate to be electroplated is a flexible thin plate such as a resin film or plastic, expansion and deformation due to the influence of temperature, humidity, tension, etc. of the substrate itself may be as large as several hundred ppm, and patterning Positioning and superposition for this is even more difficult.
- a first aspect of the present invention is a plating method for selectively plating a part of a conductive pattern formed of a conductor on the surface of a sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- An auxiliary pattern connected to a specific pattern portion to be electroplated in the conductive pattern and extending along the longitudinal direction is formed on the sheet substrate with a conductive material; and Transporting the sheet substrate such that the surface contacts the electrolytic plating solution over a predetermined distance along the longitudinal direction, and at least the specific pattern portion on the sheet substrate contacts the electrolytic plating solution.
- an electrode member provided at a position where the surface of the sheet substrate is separated from the electrolytic plating solution is brought into contact with the auxiliary pattern, and the electrolytic plating solution is interposed via the electrode member. It includes applying a voltage.
- a plating method for selectively plating a part of a conductive pattern formed of a conductor on a surface of the sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- the first conductive pattern is connected to the first specific pattern portion of the conductive pattern and extends along the longitudinal direction to a first specific position in the width direction of the sheet substrate that intersects the longitudinal direction.
- the auxiliary pattern and the sheet that is connected to the second specific pattern portion different from the first specific pattern portion in the conductive pattern and intersects the longitudinal direction different from the first specific position.
- a plating method for selectively plating a part of a conductive pattern formed of a conductor on the surface of the sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- An auxiliary connected to each of the first specific pattern portion and the second specific pattern portion different from the first specific pattern portion in the conductive pattern and extending along the longitudinal direction.
- a first electrode member provided at a position before or after contacting the first electrolytic plating solution is brought into contact with the auxiliary pattern, and the first electrolytic plating solution is passed through the first electrode member.
- a plating apparatus for selectively plating a part of a conductive pattern formed by a conductor formed on the surface of the sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- a liquid contact portion for bringing the surface of the sheet substrate into contact with the electrolytic plating solution over a predetermined distance along the longitudinal direction, and an upstream side or a downstream side of the liquid contact portion with respect to the transport direction of the sheet substrate.
- Electrode member in contact with the conductive auxiliary pattern formed on the sheet substrate; and a power supply unit that applies a voltage for electrolytic plating to the electrolytic plating solution through the electrode member.
- a plating apparatus for selectively plating a part of a conductive pattern formed by a conductor formed on the surface of the sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- the sheet substrate is connected to the first specific pattern portion of the conductive pattern, and the length is set at a first specific position in the width direction of the sheet substrate that intersects the longitudinal direction.
- a conductive first auxiliary pattern arranged so as to extend along the scale direction, a second specific pattern portion different from the first specific pattern portion in the conductive pattern, and the first A conductive second auxiliary pattern arranged to extend along the longitudinal direction is formed at a second specific position in the width direction of the sheet substrate that intersects the longitudinal direction different from the specific position.
- a first liquid contact portion for contacting the surface of the first substrate with the first electrolytic plating solution over a predetermined distance along the longitudinal direction, and the first liquid contact portion with respect to the transport direction of the sheet substrate.
- a first electrode member provided on the upstream side or the downstream side and configured to apply a voltage for electrolytic plating to the first electrolytic plating solution in contact with the first auxiliary pattern; and the first electrolytic plating
- a second wetted liquid in which the surface of the sheet substrate that has been electrolytically plated with the liquid is brought into contact with a second electrolytic plating liquid different from the first electrolytic plating liquid over a predetermined distance along the longitudinal direction.
- an upstream side or a downstream side of the second liquid contact portion with respect to the conveyance direction of the sheet substrate, and contacts the second auxiliary pattern to the second electrolytic plating solution for electrolytic plating.
- a second electrode member for applying a voltage Obtain.
- a plating apparatus for selectively plating a part of a conductive pattern formed by a conductor formed on the surface of the sheet substrate while conveying the long sheet substrate in the longitudinal direction.
- the sheet substrate is connected to each of the first specific pattern portion and the second specific pattern portion different from the first specific pattern portion of the conductive pattern, and the long A conductive auxiliary pattern is formed so as to extend along the length direction, and a first electrolytic plating solution is brought into contact with the surface of the sheet substrate for a predetermined distance along the length direction. 1 is in contact with the auxiliary pattern and applies a voltage to the first electroplating solution with respect to the liquid contact portion of 1 and the conveyance direction of the sheet substrate.
- the first to An electrode member a cutting portion for cutting an electrical connection between the first specific pattern portion and the auxiliary pattern after the electrolytic plating with the first electrolytic plating solution, and the first electrolytic plating solution.
- a second electrode member provided on an upstream side or a downstream side of the second liquid contact portion and configured to contact the auxiliary pattern and apply a voltage to the second electrolytic plating solution.
- a sensor device that inspects a specific component contained in the detected object based on an electrical change between the electrodes when a plurality of electrodes are brought into contact with the detected object.
- a substrate carrying a plurality of electrodes at a predetermined interval, and a first layer of each of the plurality of electrodes is formed of a thin film made of a first conductive material, and the first electrode of the plurality of electrodes includes the first electrode
- a second conductive material different from the first conductive material is formed of a thin film laminated on the first layer by electrolytic plating, and the second electrode of the plurality of electrodes includes the first conductive material and the first conductive material.
- a third conductive material different from the second conductive material is formed of a thin film laminated on the first layer by electrolytic plating.
- An eighth aspect of the present invention is a sensor device that inspects a specific component contained in the detected object based on an electrical change that occurs between the electrodes when a plurality of electrodes are brought into contact with the detected object.
- the two electrodes have a second layer obtained by laminating a second conductive material different from the first conductive material as a thin film on the first layer by electrolytic plating, and the second electrode further includes the first electrode And a third layer obtained by laminating a third conductive material different from the second conductive material and the second conductive material as a thin film on the second layer by electrolytic plating.
- a sensor that includes at least a pair of electrodes that are in contact with a detection target, and measures physical or chemical characteristics of the detection target based on an electrical change between the electrodes.
- a plurality of electrode portions each having the pair of electrodes formed at each of a plurality of positions along a longitudinal direction of a long sheet substrate having flexibility; and provided for each of the electrode portions.
- a plurality of detection circuit units for detecting an electrical change between the pair of electrodes of the electrode unit, and a power supply voltage to each of the detection circuit units in order to supply the power supply voltage to the sheet substrate in the longitudinal direction.
- the sheet In order to transmit a detection signal detected by each of the detection circuit unit and the conductive power supply line unit formed continuously along the sheet substrate, the sheet is continuously formed along the longitudinal direction on the sheet substrate.
- a conductive signal transmission line unit, and a front The pair of electrodes includes a first layer made of the same first conductive material as the wiring pattern portion for the power supply line portion, and at least one electrode of the pair of electrodes is the first conductive material.
- a second layer is formed by laminating a second conductive material different from the material on the first layer by electrolytic plating.
- FIG. 1 shows an example in which the electrode member of the electrode roller shown in FIG. 1 is provided in a region corresponding to a first specific position in the width direction of the sheet substrate on which the first auxiliary pattern is formed.
- 1 shows an example in which the electrode member of the electrode roller shown in FIG. 1 is provided in a region corresponding to a second specific position in the width direction of the sheet substrate on which the second auxiliary pattern is formed.
- 5A and 5B are diagrams showing another modification for applying a plating voltage to the electrode member of the electrode roller shown in FIG. 3 or FIG.
- FIG. 1 It is a figure which shows an example of the circuit structure of a blood glucose level measurement sensor apparatus. It is a figure which shows an example of the electroconductive pattern and auxiliary pattern of 2nd Embodiment. It is a schematic block diagram which shows the schematic structure of the plating processing apparatus of 2nd Embodiment. It is the figure which laminated
- FIG. 1 is a schematic configuration diagram showing a schematic configuration of a plating apparatus 10 according to the first embodiment.
- an X, Y, Z orthogonal coordinate system with the gravity direction as the Z direction is set, and the X direction, the Y direction, and the Z direction are set according to the arrows shown in the figure.
- the plating apparatus 10 is an apparatus that forms a pattern layer on a substrate by performing a plating process on a flexible film-like sheet substrate FS.
- the plating apparatus 10 constitutes, for example, a flexible display (film-like display) as an electronic device, a film-like touch panel, a film-like color filter for a liquid crystal display panel, flexible wiring, or a flexible sensor.
- a pattern layer is formed.
- a pattern layer that constitutes an electrode portion of a sensor device that measures physical or chemical characteristics of an object to be detected is formed.
- the plating apparatus 10 is a so-called roll-to-roller in which a substrate FS is sent out from a supply roll FR1 obtained by winding a sheet substrate (hereinafter referred to as a substrate) FS in a roll shape, and the sent-out substrate FS is taken up by a recovery roll FR2.
- a plating process, a cleaning process, and a drying process are continuously performed on the substrate FS conveyed by the roll (Roll To Roll) method. That is, the plating apparatus 10 continuously performs the plating process, the cleaning process, and the drying process on the substrate FS after being supplied from the supply roll FR1 and before being wound up by the recovery roll FR2.
- the substrate FS has a belt-like shape in which the moving direction (transport direction) of the substrate FS is the longitudinal direction (long) and the width direction is the short direction (short).
- the X direction is the direction in which the substrate FS is directed from the supply roll FR1 to the recovery roll FR2 in the horizontal plane parallel to the installation surface of the plating apparatus 10 (the transport direction of the substrate FS). ).
- the Y direction is a direction orthogonal to the X direction in the horizontal plane, and is the width direction (short direction) of the substrate FS.
- Each of the rotation axis of the supply roll FR1 and the rotation axis of the recovery roll FR2 is installed so as to be parallel to the XY plane (floor surface on which the apparatus is installed) and parallel to each other.
- the Z direction is a direction (upward direction) orthogonal to the X direction and the Y direction, and is parallel to the direction in which gravity acts.
- the transport direction of the substrate FS is defined as + X direction, and the direction in which gravity is applied is defined as ⁇ Z direction.
- the material of the substrate FS for example, a resin film or a foil (foil) made of a metal or alloy such as stainless steel is used.
- the resin film material include polyethylene resin, polyether resin, polypropylene resin, polyester resin, ethylene vinyl copolymer resin, polyvinyl chloride resin, polyphenylene sulfide resin, polyarylate resin, cellulose resin, polyamide resin, polyimide resin. , Polycarbonate resin, polystyrene resin, and vinyl acetate resin containing at least one may be used.
- the thickness and rigidity (Young's modulus) of the substrate FS may be in a range that does not cause folds or irreversible wrinkles due to buckling in the substrate FS.
- films such as PET (polyethylene terephthalate), PEN (polyethylene naphthalate), and PES (polyethersulfone) having a thickness of about 25 ⁇ m to 200 ⁇ m are typical of sheet substrates.
- the substrate FS may receive heat in processing performed in the plating apparatus 10, it is preferable to select a substrate having a material whose thermal expansion coefficient is not significantly large.
- the thermal expansion coefficient can be suppressed by mixing an inorganic filler with a resin film.
- the inorganic filler may be, for example, titanium oxide, zinc oxide, alumina, or silicon oxide.
- the substrate FS may be a single layer of ultrathin glass having a thickness of up to about 100 ⁇ m manufactured by a float process or the like, and the resin film or metal foil or the like is pasted on the ultrathin glass.
- a laminated body may be used.
- a metal material such as aluminum, stainless steel, or copper may be rolled to give flexibility as a metal foil (foil).
- the flexibility of the substrate FS means a property that the substrate FS can be bent without being sheared or broken even when a force of its own weight is applied to the substrate FS. .
- flexibility includes a property of bending by a force of about its own weight.
- the degree of flexibility varies depending on the material, size and thickness of the substrate FS, the layer structure formed on the substrate FS, the environment such as temperature and humidity. In any case, when the substrate FS is correctly wound around the conveyance direction changing members such as various conveyance rollers and rotary drums provided in the conveyance path in the plating apparatus 10 according to the first embodiment, If the substrate FS can be smoothly transported without being bent and creased or damaged (breaking or cracking), it can be said to be a flexible range.
- a conductive pattern is formed on the surface of the substrate FS with a conductive material (conductive material).
- This conductive pattern has a pattern corresponding to at least the electrode part E of the sensor device to be manufactured.
- a pattern is formed in accordance with an electrode portion E of a blood sugar level measurement sensor device (sensor device, blood glucose meter) that detects sugar contained in human blood (a detection object).
- the base material of the substrate FS is a metal foil (aluminum, stainless steel, copper, etc.), since it is a conductive material itself, the entire surface of the substrate FS is heat resistant with a certain thickness (for example, several ⁇ m or less).
- a conductive insulating film may be deposited, and a conductive pattern may be formed on the insulating film.
- FIG. 2 shows an overall structure formed on the surface of the substrate FS, including a plurality of patterns PTa (patterns surrounded by a two-dot chain line in FIG. 2) formed at least according to the electrode part E of the blood glucose level measurement sensor device. It is a figure which shows the conductive pattern PT.
- the plurality of patterns PTa are regularly arranged on the substrate FS.
- the conductive pattern PT is formed in a pattern formation region F (see FIGS. 3 and 4) on the surface of the substrate FS (on the substrate FS).
- the conductive material (conductor) for forming the conductive pattern PT may be any material that allows current to pass therethrough, but in the first embodiment, non-noble metal copper (Cu) is used.
- the conductive pattern PT is formed by performing a lithography process using an exposure apparatus and an etching process for partially removing the thin film on the substrate FS on which a thin film (Cu layer) made of a conductive material is uniformly laminated on the surface. It may be formed on the substrate FS. That is, a photoresist layer is stacked on a thin film made of a conductive material, and at least a pattern corresponding to the electrode portion E is exposed by an exposure device, and then development processing is performed. Thereafter, by immersing the substrate FS in an etching solution, the conductive material thin film (Cu layer) is partially removed using the photoresist layer after the development process as a mask, and the conductive pattern PT appears.
- the conductive pattern PT may be formed by an optical patterning process using an exposure apparatus and an electroless plating process for depositing by electroless plating.
- a thin film made of a photosensitive silane coupling agent (photosensitive plating reducing agent) in which a fluorine group is removed only in a portion irradiated with ultraviolet rays and a plating reducing ability (amine group) is expressed is formed on the surface of the substrate FS.
- the exposure apparatus exposes at least a pattern corresponding to the electrode portion E, and then the surface of the substrate FS is electrolessly plated (containing palladium ions).
- the conductive pattern PT may be deposited by contacting (contacting) the solution. Still another method is to use a conductive ink containing metal nanoparticles using a precise inkjet printer that discharges fine droplets onto the surface of the substrate FS or a fine printing plate (such as a relief plate, an intaglio plate, or a silk screen).
- the conductive pattern PT may be drawn directly on the substrate FS. In this case, although it is simpler than the above-described method using the exposure apparatus, there is a limit to the miniaturization of the line width of the electrode or wiring portion formed as the conductive pattern PT.
- the conductive pattern PT includes an electrode portion E (detailed as described in FIG. 6) composed of three electrodes: a working electrode WE, a counter electrode CE, and a reference electrode (reference electrode) RE.
- a plurality of patterns PTa having shapes corresponding to the wirings LW, LC, and LR connected to the electrodes are provided.
- the pattern portion of the working electrode WE has a circular shape
- the pattern portion of the reference electrode RE is formed in an annular shape so as to surround the working electrode WE
- the pattern portion of the counter electrode CE is further formed so as to surround the reference electrode RE. ing.
- a pattern portion that is electroplated (electroplated) with the same material is referred to as a specific pattern portion SPT, and the specific pattern portion SPT is an isolated portion that is not connected to other pattern portions in the conductive pattern PT. Isolated pattern part.
- each portion of the working electrode WE and the counter electrode CE is electrolytically plated with a first material (for example, a noble metal such as gold, platinum, palladium, etc.).
- the working electrode WE and the counter electrode CE The pattern portions of the wirings LW and LC connected to each of the first and second wirings are also electroplated with a first material (for example, a noble metal such as gold, platinum or palladium) which is the same material.
- each pattern portion of the reference electrode RE and the wiring LR connected to the reference electrode RE is electrolytically plated with a second material (for example, a noble metal such as silver) different from the first material. Therefore, in the conductive pattern PT shown in FIG.
- the pattern portion forming the working electrode WE, the counter electrode CE, and the wirings LW, LC among the plurality of patterns PTa is the first specific pattern portion SPT (hereinafter referred to as SPT1).
- the pattern portion for forming the reference electrode RE and the wiring LR becomes the second specific pattern portion SPT (hereinafter referred to as SPT2).
- the first specific pattern portion SPT1 and the second specific pattern portion SPT2 are designed so as to be electrically disconnected from each other on the substrate FS.
- a thin wiring pattern APTs connected to each of the specific pattern portions SPT and extending in the Y direction, and a specific position in the width direction (Y direction) of the substrate FS connected to the wiring pattern APTs.
- An auxiliary pattern APT extending along the longitudinal direction (X direction) of the substrate FS is formed.
- the conductive material forming the auxiliary pattern APT may be any material that allows current to flow during electroplating.
- copper (Cu) which is the same material as the conductive pattern PT, is used as a material for forming the auxiliary pattern APT and the wiring pattern APTs.
- the auxiliary pattern APT is set to have a relatively large width in the Y direction so that the auxiliary pattern APT can be reliably kept in contact with one polarity electrode member (roller electrode or the like) from the power source for electrolytic plating.
- the first auxiliary pattern connected to the first specific pattern portion SPT1.
- An APT hereinafter referred to as APT1
- a second auxiliary pattern APT hereinafter referred to as APT2
- the first auxiliary pattern APT1 extends along the longitudinal direction of the substrate FS at a first specific position in the width direction of the substrate FS (for example, an end portion on the + Y direction side of the substrate FS).
- the second auxiliary pattern APT2 extends along the longitudinal direction of the substrate FS at a second specific position in the width direction of the substrate FS different from the first specific position (for example, an end portion on the ⁇ Y direction side of the substrate FS). It extends.
- the auxiliary pattern APT is formed on the substrate FS by performing a lithography process using an exposure apparatus and an etching process for partially removing the thin film on the substrate FS on which a thin film made of a conductive material is uniformly laminated. May be formed.
- the auxiliary pattern APT may be formed by a photo patterning process using an exposure apparatus and an electroless plating process in which a thin film made of a conductive material is deposited by electroless plating.
- the auxiliary pattern APT may be formed together when the conductive pattern PT is formed, or may be formed at a timing different from the formation of the conductive pattern PT.
- the working electrode WE among the plurality of patterns PTa.
- the pattern portion for forming the wiring LW may be the first specific pattern portion SPT1
- the pattern portion for forming the counter electrode CE and the wiring LC may be the third specific pattern portion SPT3.
- the first auxiliary pattern APT1 is connected to the first specific pattern portion SPT1
- the third specific pattern portion SPT3 is connected to a third auxiliary pattern APT3 provided separately.
- the first specific pattern portion and the third specific pattern portion are designed to be electrically disconnected from each other.
- the first auxiliary pattern APT1, the second auxiliary pattern APT2, and the third auxiliary pattern APT3 are also arranged so as to be electrically insulated from each other.
- a step of forming the layer may be required.
- the plating apparatus 10 includes a control unit 12, a substrate transport mechanism 14, a processing tank 16, a voltage application unit 18, a cleaning tank 20, and a drying unit 22.
- the control unit 12 controls each unit in the plating apparatus 10.
- the control unit 12 includes a computer and a storage medium in which a program is stored, and functions as the control unit 12 in the first embodiment by the computer executing the program stored in the storage medium. .
- the substrate transport mechanism 14 includes guide rollers R1 to R11.
- the guide rollers R1 to R11 are provided between the supply roll FR1 and the collection roll FR2, and are arranged in this order from the upstream side in the transport direction of the substrate FS.
- the guide rollers R1 to R11 are arranged to rotate in the longitudinal direction of the substrate FS while supporting the substrate FS while in contact with the substrate FS.
- the guide rollers R1 to R3, R6, R8, R9, and R11 are disposed so as to come into contact with the surface (back surface) opposite to the surface (processing surface to be plated) of the substrate FS.
- the guide rollers R4, R5, R7, and R10 are disposed so as to contact the surface of the substrate FS.
- the rotation axes of the supply roll FR1, the collection roll FR2, and the guide rollers R1 to R11 are parallel to the Y direction.
- the control part 12 controls the conveyance speed of the board
- the motor for rotation drive is attached to each of supply roll FR1 and collection
- Tension in the longitudinal direction can be given.
- at least one of the guide rollers R1 to R11 is preferably provided with a load cell for measuring the tension acting on the substrate FS.
- the substrate is positioned at a position between the guide rollers R1 and R2 (or a position immediately after the supply roll FR1).
- An edge sensor for measuring a position change in the Y direction of the end portion (edge portion) in the width direction of the FS is provided, and the Y direction position of the supply roll FR1 is shifted by servo control in response to the measurement result of the edge sensor.
- An edge position control mechanism (EPC unit) may be provided.
- the treatment tank (plating tank) 16 holds an electrolytic plating solution LQ1 for performing an electrolytic plating process on the substrate FS.
- the electrolytic plating solution LQ1 any one complex ion of noble metals such as gold complex ions, platinum complex ions, or silver complex ions is mixed at a predetermined concentration.
- the treatment tank 16 is provided with a temperature controller (not shown) for adjusting the temperature of the electrolytic plating solution LQ1, and the temperature of the electrolytic plating solution LQ1 is suitable for plating deposition regardless of changes in the environmental temperature. Controlled to maintain temperature.
- the guide rollers R4 and R5 are provided in the processing tank 16 so that the surface (processing surface) of the substrate FS is immersed in the electrolytic plating solution LQ1, and the guide rollers R3 and R6 are provided on the + Z direction side with respect to the processing tank 16. It has been.
- the guide rollers R4 and R5 are located on the ⁇ Z direction side from the liquid surface (front surface) of the electrolytic plating solution LQ1 held by the processing tank 16. Thereby, a part of the surface of the substrate FS extending between the guide roller R3 and the guide roller R6 along the longitudinal direction is in contact (contact) with the electrolytic plating solution LQ1 held by the processing tank 16. Thus, the substrate FS can be transported.
- the guide rollers R4 and R5 function as a wetted part that brings the surface (processed surface) of the substrate FS into contact with the electrolytic plating solution LQ1 over a predetermined distance along the longitudinal direction. Further, the guide rollers R4, R5 themselves and their rotation shafts may be made of insulating materials that are not corroded or plated by the electrolytic plating solution LQ1.
- the voltage application unit 18 applies a voltage for electrolytic plating to the electrolytic plating solution LQ1 under the control of the control unit 12.
- the voltage application unit 18 includes a power supply unit 18a, an electrode plate 18b corresponding to a metal type to be plated, and an electrode roller 18c.
- the power supply unit 18a generates a DC voltage and outputs the generated voltage from two output terminals (not shown).
- the electrode plate 18b is connected to one output terminal (positive electrode side) of the power supply unit 18a, and is disposed so as to come into contact with the electrolytic plating solution LQ1 held in the processing tank 16.
- the other output terminal (negative electrode side) of the power supply unit 18a is grounded and connected to an annular electrode member 19 (see FIGS.
- the entire outer peripheral surface or the annular portion where the electrode member 19 is formed is formed of an insulator, and the substrate FS is in contact with the electroplating solution LQ1 between the guide roller R2 and the guide roller R3. Arranged in a dry position.
- the electrode roller 18c has a rotation axis (rotation center line) parallel to the Y axis, supports the surface of the substrate FS, and can rotate in the longitudinal direction of the substrate FS.
- the electrode roller 18c is arranged so as to rotate while the electrode member 19 provided on the electrode roller 18c is in contact with the surface (processing surface) of the substrate FS with a predetermined adhesion force.
- the electrode member 19 is provided on the electrode roller 18c so as to be in contact with the auxiliary pattern APT formed on the substrate FS.
- the electrode member 19 is provided on the electrode roller 18c so as to contact only one of the auxiliary patterns APT. That is, the electrode member 19 is provided in a region corresponding to a specific position in the width direction of the substrate FS on which the auxiliary pattern APT is formed. In the example shown in FIG. 3, the electrode member 19 is provided in a region corresponding to the first specific position in the width direction of the substrate FS on which the first auxiliary pattern APT1 is formed (the end on the + Y direction side of the substrate FS). It has been.
- FIG. 3 the electrode member 19 is provided on the electrode roller 18c so as to be in contact with the auxiliary pattern APT formed on the substrate FS.
- the electrode member 19 is provided in a region corresponding to a second specific position in the width direction of the substrate FS on which the second auxiliary pattern APT2 is formed (an end on the ⁇ Y direction side of the substrate FS). An example is shown.
- the electrode member 19 is a thin metal plate (for example, a Western silver plate) rounded into a pipe shape as shown in FIG. 5A, and an insulating film in which a part of the outer peripheral surface of the electrode roller 18c is coated in a ring shape. It may be fixed so as to cover 18d.
- the electrode member 19 is connected to the other output terminal (negative electrode side) of the power supply unit 18a with a predetermined pressing force applied to the current collecting brush Ea by a thin metal piece (for example, phosphor bronze plate) that is elastically deformed. Just keep touching.
- the rollable current collecting roller Eb may be kept in contact with the electrode member 19 with a predetermined pressing force.
- the structure which electrically connects the electrode member 19 and the other output terminal (negative electrode side) of the power supply part 18a without providing the current collection brush Ea and the current collection roller Eb like FIG. 5A and 5B is also possible.
- the entire electrode roller 18c is made of a conductor (metal), and the outer peripheral surface of the electrode roller 18c is covered with an insulating film other than the annular portion that becomes the electrode member 19. And what is necessary is just to connect the other output terminal (negative electrode side) of the power supply part 18a to the bearing (metallic bearing) of the electrode roller 18c.
- the first specific pattern portion is interposed via the electrode member 19 and the first auxiliary pattern APT1.
- the potential on the negative side of the power supply unit 18a is applied to SPT1. Therefore, the first specific pattern portion formed on the electrode plate 18b to which the potential on the positive electrode side of the power supply unit 18a is applied and is in contact with the electrolytic plating solution LQ1, and the substrate FS in contact with the electrolytic plating solution LQ1 A voltage for electroplating is applied to the electroplating solution LQ1 with the SPT1.
- a noble metal thin film is deposited on the first auxiliary pattern APT1 and the first specific pattern portion SPT1 in contact with the electrolytic plating solution LQ1. Since the substrate FS is continuously transported in the transport direction (+ X direction), a noble metal thin film is sequentially deposited on the first specific pattern portion SPT1 formed on the substrate FS in the longitudinal direction. It will be.
- a thin film of a noble metal other than silver for example, platinum (Pt) or gold (Au) is formed on the first auxiliary pattern APT1 and the first specific pattern portion SPT1 by electrolytic plating. It shall be. As is apparent from the arrangement of FIG.
- the relationship between the dimension in the Y direction of the electrode member 19 formed annularly on the cylindrical electrode roller 18c and the width in the Y direction of the first auxiliary pattern APT1 is the pattern formation. It is set in consideration of the gap in the Y direction between the region F and the first auxiliary pattern APT1 and the positioning accuracy in the Y direction of the substrate FS by the EPC unit.
- the second specific pattern portion SPT2 is interposed via the electrode member 19 and the second auxiliary pattern APT2.
- the potential on the negative electrode side of the power supply unit 18a is applied to the power source. Therefore, a noble metal thin film can be deposited on the second auxiliary pattern APT2 and the second specific pattern portion SPT2 in contact with the electrolytic plating solution LQ1. Therefore, the material of the thin film formed in the first auxiliary pattern APT1 and the first specific pattern portion SPT by changing the material of the complex ions mixed in the electrolytic plating solution LQ1 in the case of FIGS. It is possible to form thin films of different materials on the second auxiliary pattern APT and the second specific pattern portion SPT. In the present embodiment, a thin film of silver (Ag) is formed on the second auxiliary pattern APT2 and the second specific pattern portion SPT2.
- the cleaning tank 20 is for performing a cleaning process on the electrolytically plated substrate FS under the control of the control unit 12.
- a guide roller R7 for changing the transport direction of the substrate FS from the ⁇ Z direction to the + Z direction is provided, and a cleaning liquid (for example, water) LQ2 is placed on the surface of the substrate FS (for example, water) above the guide roller R7.
- a cleaning nozzle 20a that discharges to the plating surface) is provided, and a cleaning nozzle that discharges cleaning liquid (for example, water) LQ2 to the back surface of the substrate FS (the back surface of the plating surface) is provided on the side of the guide roller R7. 20c is provided.
- the upper cleaning nozzle 20a discharges the cleaning liquid LQ2 in a shower shape in two directions, the ⁇ X direction side and the X direction side.
- the guide roller R7 is provided in the cleaning tank 20 on the ⁇ Z direction side with respect to the cleaning nozzle 20a, and the guide rollers R6 and R8 are provided on the + Z direction side with respect to the cleaning tank 20.
- the substrate FS heading from the guide roller R6 toward the guide roller R7 is in the ⁇ Z direction so that the surface (plating surface) faces the cleaning nozzle 20a at the position on the ⁇ X direction side with respect to the cleaning nozzle 20a. Conveyed to the side.
- the substrate FS from the guide roller R7 toward the guide roller R8 is conveyed to the + Z direction side so that the surface (processing surface) faces the cleaning nozzle 20a at a position on the + X direction side with respect to the cleaning nozzle 20a. Therefore, the surface of the substrate FS from the guide roller R6 toward the guide roller R7 is cleaned by the cleaning liquid LQ2 discharged from the cleaning nozzle 20a provided in the cleaning tank 20 to the ⁇ X direction side. Similarly, the surface of the substrate FS from the guide roller R7 toward the guide roller R8 is cleaned by the cleaning liquid LQ2 discharged from the cleaning nozzle 20a provided in the cleaning tank 20 to the + X direction side.
- the back surface of the substrate FS from the guide roller R6 toward the guide roller R7 is cleaned by the cleaning liquid LQ2 discharged from the cleaning nozzle 20c to the ⁇ X direction side, and the back surface of the substrate FS from the guide roller R7 toward the guide roller R8 is
- the cleaning liquid LQ2 is discharged from the cleaning nozzle 20c toward the + X direction.
- a discharge port 20 b for discharging the cleaning liquid LQ 2 discharged from the cleaning nozzles 20 a and 20 c to the outside of the cleaning tank 20 is provided in the bottom wall of the cleaning tank 20.
- the drying unit 22 performs a drying process on the substrate FS subjected to the cleaning process under the control of the control unit 12.
- a heat generation source 22 a that generates heat is provided in the drying unit 22.
- the heat generation source 22a is a blower, an infrared light source, or a ceramic heater that blows dry air (hot air) such as dry air onto the surface of the substrate FS.
- the guide roller R10 is provided in the drying unit 22 (in the housing of the drying unit 22) on the ⁇ Z direction side with respect to the heat generation source 22a, and the guide rollers R9 and R11 are + Z with respect to the drying unit 22. It is provided on the direction side.
- the substrate FS heading from the guide roller R9 to the guide roller R10 is at a position on the ⁇ X direction side with respect to the heat generation source 22a, so that the surface (processing surface) faces the heat generation source 22a side. It is conveyed to the direction side.
- the substrate FS heading from the guide roller R10 to the guide roller R11 is conveyed to the + Z direction side so that the surface (processing surface) faces the heat generation source 22a at a position on the + X direction side with respect to the heat generation source 22a.
- the upper limit of the temperature in the drying unit 22 is determined by the material of the base material of the substrate FS.
- the upper limit is about 105 ° C.
- the base material is a substrate FS of PEN resin, polycarbonate resin, or metal foil
- the upper limit temperature can be set higher.
- the base material FS made of resin may cause large expansion and contraction.
- the conductive pattern PT, the auxiliary pattern APT, the wiring pattern APTs, etc. formed on the substrate FS are metallic, various patterns on the substrate FS are cracked (cracked) due to a large difference in thermal expansion coefficient. Or peel off.
- the material of the thin film formed on the conductive pattern PT is made different for each specific pattern portion SPT. Can do. That is, a thin film of a different material can be selectively formed on the conductive pattern PT. Specifically, first, a plurality of plating apparatuses 10 are prepared.
- the processing tank 16 of the 1st plating processing apparatus 10 is the electroplating liquid (For example, noble metal complex ions other than silver, such as a gold complex ion or a platinum complex ion.)
- the first electrolytic plating solution LQ1 is held, and the electrode roller 18c of the first plating apparatus 10 is in contact with the first auxiliary pattern APT1 as shown in FIG. 3 by the electrode member (first electrode member) 19 Provide as follows. Thereby, a thin film of the first noble metal (for example, gold or platinum) is formed on the first specific pattern portion SPT1. Then, the recovery roll FR2 for the first plating apparatus 10 that has recovered the substrate FS is loaded as the supply roll FR1 for the second plating apparatus 10.
- the first noble metal for example, gold or platinum
- the processing tank 16 of the second plating apparatus 10 holds an electrolytic plating solution (second electrolytic plating solution) LQ1 in which a complex ion of silver, which is a second noble metal different from the first noble metal, is mixed.
- the electrode roller 18c of the second plating apparatus 10 is provided so that the electrode member (second electrode member) 19 is in contact with the second auxiliary pattern APT2 as shown in FIG. As a result, a silver thin film is formed on the second specific pattern portion SPT2.
- first specific position and the second auxiliary pattern APT2 in the width direction of the substrate FS on which the first auxiliary pattern APT1 is formed are formed so as to be symmetric with respect to the center in the width direction of the substrate FS.
- a second specific position in the width direction (Y direction) of the substrate FS may be set. Accordingly, whether the electrode member 19 is in contact with the first auxiliary pattern APT1 or the second auxiliary pattern APT2 by reversing (rotating 180 degrees in a plane parallel to the XY plane) and attaching the electrode roller 18c. Can be switched.
- the current collecting brush Ea and the current collecting roller Eb are provided as shown in FIGS.
- the first auxiliary pattern APT1 and the second auxiliary pattern APT2 on both sides in the Y direction on the electrode roller 18c are provided.
- the electrode member 19 is formed at a corresponding position, and the first plating apparatus 10 collects current with respect to the electrode member 19 at the position corresponding to the first auxiliary pattern APT1 of the two electrode members 19. If the brush Ea and the current collecting roller Eb are provided and the second plating apparatus 10 is provided with the current collecting brush Ea and the current collecting roller Eb for the electrode member 19 at a position corresponding to the second auxiliary pattern APT1. Good.
- a recovery roll FR2 for the second plating apparatus 10 that has recovered the substrate FS is connected to the third electrode. It is loaded as a supply roll FR1 for the plating apparatus 10.
- the treatment tank 16 of the third plating apparatus 10 holds a potassium chloride solution saturated with silver chloride as an electrolytic plating solution (third electrolytic plating solution) LQ1.
- the electrode roller 18c of the third plating apparatus 10 is provided such that the electrode member 19 (third electrode member 19) is in contact with the second auxiliary pattern APT2 as shown in FIG.
- an output terminal on the negative side of the power supply unit 18a is connected to an electrode plate (third electrode terminal) 18b, and an electrode member An output terminal on the positive electrode side of the power supply unit 18 a is connected to the (third electrode member) 19.
- a silver chloride thin film can be further formed on the second specific pattern portion SPT2 (reference electrode RE and wiring LR).
- the working electrode WE, the counter electrode CE, and the wirings LW and LC are formed of a thin film of a conductive material (for example, copper) whose first layer is a non-noble metal, and the second layer is a noble metal other than silver (for example, gold, A laminated structure formed of a thin film of platinum or palladium).
- the reference electrode RE and the wiring LR are formed of a thin film of a conductive material (for example, copper) whose first layer is a non-noble metal, the second layer is formed of a silver thin film, and the third layer is a thin film of silver chloride. It becomes the laminated structure formed by.
- the substrate FS is collected by the collection roll FR2 for each plating processing apparatus 10, the processing (electrolytic plating processing, etc.) by the plurality of plating processing apparatuses 10 is continuously performed on the substrate FS, and the plurality of plating processing apparatuses 10 are performed.
- the substrate FS may be recovered by the recovery roll FR2 for the first time after all the processes (electrolytic plating process, etc.) are performed. In this case, after the substrate FS supplied from the supply roll FR1 is first transported into the first plating apparatus 10, it is continuously collected in the second plating apparatus 10 without being recovered by the recovery roll FR2. Then, it is continuously transferred into the third plating apparatus 10.
- substrate FS sent out from the 3rd plating processing apparatus 10 will be wound up for the first time with the collection
- the first specific pattern portion SPT1 and the second specific pattern portion SPT2 that are in contact with the electrolytic plating solution LQ1 held in the processing tank 16 of each plating apparatus 10 are not energized at the same time.
- the first auxiliary pattern APT and the second auxiliary pattern APT2 also need to be electrically separated at predetermined intervals along the longitudinal direction.
- a non-conduction section in which the auxiliary patterns APT and APT2 are not formed over a predetermined length in the longitudinal direction is set at a position on the substrate FS corresponding to the position in the Y direction of the electrode member 19 of the electrode roller 18c. You may make it do.
- the electrode roller 18c is provided between the guide roller R2 and the guide roller R3, it is located upstream or downstream of the liquid contact portion (guide rollers R4, R5) and away from the electrolytic plating solution LQ1. Alternatively, it may be provided at a position not in contact with the electrolytic plating solution LQ1. In that case, the electrode roller 18c may be provided, for example, in any of the conveyance paths between the guide rollers R8 to R11 in FIG. 1, or may be replaced with the guide roller R10 in FIG.
- the blood glucose level measurement sensor device 30 includes a rectangular electrode portion E (about 2 mm square) including a working electrode WE, a counter electrode CE, and a reference electrode RE, a voltage follower 32 using an operational amplifier OP2, a DA converter 34, A measurement control unit 36, an operational amplifier OP1, a current-voltage conversion unit 38 using an operational amplifier OP3, and an AD converter 40 are provided at least.
- a reagent such as glucose (including a mediator and an enzyme) that reacts according to the blood glucose concentration is applied, or a test paper impregnated with the reagent is affixed.
- the voltage follower 32 outputs a voltage (hereinafter referred to as a reference voltage) VRE generated at the reference electrode RE by ions in the blood.
- the voltage follower 32 is configured by an operational amplifier OP2 having a high input impedance.
- the DA converter 34 outputs a voltage (hereinafter referred to as a reference voltage) Vref corresponding to the reference voltage value (command value) output from the measurement control unit 36.
- the operational amplifier OP1 feedback-controls the voltage of the counter electrode CE so that the difference between the reference voltage Vref and the reference voltage VRE is always zero.
- the current-voltage conversion unit 38 converts a current Iw flowing from the counter electrode CE to the working electrode WE into a voltage (hereinafter, measurement voltage) Vo.
- the current-voltage conversion unit 38 includes at least an operational amplifier OP3 and a resistor Rw.
- the AD converter 40 converts the measurement voltage Vo into, for example, a 10-bit digital value and outputs it to the measurement control unit 36.
- the measurement control unit 36 is programmed to change the reference voltage value Vref output from the DA converter 34 stepwise or continuously within a certain range, and the measurement voltage Vo corresponding to the change of the reference voltage Vref.
- the blood glucose level is measured by monitoring the trend of changes.
- the plating apparatus 10 selectively transfers a part of the conductive pattern PT made of the conductor formed on the surface of the substrate FS while transporting the substrate FS in the longitudinal direction.
- a plating unit for contacting a surface of the substrate FS with the electrolytic plating solution LQ1 over a predetermined distance along the longitudinal direction processing tank 16, guide rollers R4, R5;
- a specific position in the width direction of the substrate FS that is provided on the upstream side or the downstream side of the liquid contact portion is connected to a specific pattern portion SPT that is subjected to electrolytic plating in the conductive pattern PT, and intersects the longitudinal direction.
- an electrode member 19 in contact with the conductive auxiliary pattern APT formed on the substrate FS so as to extend along the longitudinal direction, and a voltage for electrolytic plating is applied to the electrolytic plating solution LQ1 via the electrode member 19. It comprises a power supply unit 18a, the. Thereby, only the specific pattern portion SPT of the conductive pattern PT can be subjected to electrolytic plating.
- the electrode member 19 is provided in a region corresponding to a specific position where the auxiliary pattern APT is formed on the outer periphery of the electrode roller 18c that supports the surface of the substrate FS and can be rotated in the longitudinal direction. Thereby, the electrode member 19 can be brought into contact with the auxiliary pattern APT of the substrate FS while suppressing friction between the electrode member 19 and the auxiliary pattern APT on the substrate FS. Therefore, it is possible to prevent the auxiliary pattern APT from being scraped off due to contact friction with the electrode member 19.
- electrolytic plating can be performed only on any one specific pattern portion SPT.
- the specific pattern portion SPT is formed as an isolated pattern portion isolated in the conductive pattern PT. Accordingly, in the conductive pattern PT, electricity does not flow to a pattern portion other than the specific pattern portion SPT connected to the auxiliary pattern APT with which the electrode member 19 is in contact, and electrolytic plating is applied to the pattern portion other than the specific pattern portion SPT. It will never be done. Therefore, the electrolytic plating process can be performed only on the specific pattern portion SPT connected to the auxiliary pattern APT in contact with the electrode member 19.
- the conductive pattern PT is connected to the first specific pattern portion SPT1 and extends in the longitudinal direction to the first specific position in the width direction of the substrate FS that intersects the longitudinal direction.
- the conductive first auxiliary pattern APT1 arranged so as to extend, and the second specific pattern portion SPT2 different from the first specific pattern portion SPT1 in the conductive pattern PT, and the first specific position
- a conductive second auxiliary pattern APT2 is formed so as to extend along the longitudinal direction at a second specific position in the width direction of the substrate FS that intersects the longitudinal direction different from the longitudinal direction.
- the 1st liquid-contact part (processing tank 16 in the 1st plating processing apparatus 10) which makes the surface of substrate FS contact the 1st electrolytic plating liquid LQ1 over a predetermined distance along a longitudinal direction, With respect to the transport direction of the substrate FS, it is provided on the upstream side or the downstream side of the first liquid contact portion, and contacts the first auxiliary pattern APT1 to apply a voltage for electrolytic plating to the first electrolytic plating solution LQ1.
- the first electrode member 19 and the surface of the substrate FS that has been subjected to electroplating with the first electroplating solution LQ1 are different from the first electroplating solution LQ1 over a predetermined distance along the longitudinal direction.
- the second liquid contact part (processing tank 16 in the second plating apparatus 10) to be brought into contact with the electrolytic plating solution LQ1 and the upstream side or the downstream side of the second liquid contact part with respect to the transport direction of the substrate FS
- a second auxiliary pattern APT2 Comprising a second electrode member 19 for applying a voltage for touch to electrolytic plating in a second electroless plating solution LQ1, the.
- the electrode member 19 of the electrode roller 18c is in contact with at least a part of the first or second electrolytic plating solution LQ1 stored in the processing tank 16 in the first or second plating apparatus 10, It can also be provided so as to be in contact with the first auxiliary pattern APT1 or the second auxiliary pattern APT2. In this case, since the surface of the electrode member 19 is also plated with the electrolytic plating solution LQ1, even if the electrode member 19 is replaced at an appropriate timing or a plating layer is deposited (deposited) on the surface, the adhesion
- the electrode member 19 may be made of a material that is weak and easily peeled off.
- the conductive pattern PT (a plurality of patterns PTa)
- the pattern portion for forming the working electrode WE and the wiring LW is defined as the first specific pattern portion SPT1
- the reference electrode RE and the wiring LR are formed.
- a pattern portion to be formed is a second specific pattern portion SPT2
- a pattern portion forming the counter electrode CE and the wiring LC is a third specific pattern portion SPT3.
- the first specific pattern portion SPT1 to the third specific pattern portion SPT3 are connected to the same auxiliary pattern APT (hereinafter referred to as APTa).
- the auxiliary pattern APTa has the first specific pattern portion SPT1, the second specific pattern portion SPT2, and the second specific pattern portion SPT2 via the wiring pattern APTs extending in the Y direction, as shown in FIG.
- the third specific pattern portion SPT3 is connected to each of the third specific pattern portions SPT3 and extends along the longitudinal direction of the substrate FS.
- the conductive pattern PT, the auxiliary pattern APTa, and the wiring pattern APTs of the second embodiment are formed of a conductive material (for example, copper).
- the plating apparatus 10a of the second embodiment is located upstream of the liquid contact part (processing tank 16, guide rollers R4, R5), and the substrate FS is an electrolytic plating solution.
- a pattern cutting unit 50 is provided at a position in front of contact with LQ1.
- the pattern cutting unit 50 (hereinafter also simply referred to as the cutting unit 50) has a hole formed in the substrate FS in order to cut the electrical connection between the working electrode WE, the counter electrode CE, and the wirings LW and LC and the auxiliary pattern APTa. This is a drilling machine.
- the cutting unit 50 may be a unit that makes a hole in the substrate FS by pressing a rod-shaped perforated unit against the substrate FS, or may make a hole in the substrate FS using a laser.
- the cutting unit 50 may be other than the punching machine as long as it can cut the working electrode WE, the counter electrode CE, and the electrical connection between the wirings LW and LC and the auxiliary pattern APTa.
- the electrode roller 18c is provided so that the electrode member 19 is in contact with the auxiliary pattern APTa.
- the electrode member 19 may be provided on the entire outer periphery of the electrode roller 18c.
- a thin film material to be deposited on the conductive pattern PT by electrolytic plating is provided for each specific pattern portion SPT.
- a plurality of plating apparatuses 10a are prepared.
- the first noble metal (gold) thin film is laminated by electrolytic plating over the entire conductive pattern PT (first to third specific pattern portions SPT1 to SPT3).
- the cutting portion 50 is not used, so the first noble metal thin film is formed on the entire conductive pattern PT by the plating apparatus 10 described in the first embodiment. May be.
- the electrode plate (first electrode terminal) 18b of the first plating apparatus 10a is connected to the positive side of the power supply unit 18a, and the electrode member (first electrode member) 19 is connected to the negative side of the power supply unit 18a. It is assumed that
- the recovery roll FR2 for the first plating apparatus 10a that has recovered the substrate FS is loaded as the supply roll FR1 for the second plating apparatus 10a.
- the processing tank 16 of the second plating apparatus 10a receives an electrolytic plating solution (second electrolytic plating solution) LQ1 mixed with complex ions of a second noble metal (for example, platinum) different from the first noble metal. Hold.
- the cutting unit 50 cuts the electrical connection between the third specific pattern portion SPT3 and the auxiliary pattern APTa. Specifically, the cutting unit 50 cuts the electrical connection between the wiring LC connected to the counter electrode CE and the auxiliary pattern APTa, so that the region CW (wiring) including the wiring LC on the substrate FS shown in FIG.
- the region CW is set in the vicinity of a position where the wiring pattern APTs connected to the auxiliary pattern APTa and the wiring LC extending in the X direction are connected.
- the cutting part 50 makes a hole in each region CW of all the patterns PTa with respect to the substrate FS before coming into contact with the second electrolytic plating solution LQ1. Accordingly, a thin film of the second noble metal (platinum) is further laminated by electrolytic plating only on the first specific pattern portion SPT1 and the second specific pattern portion SPT2 in the conductive pattern PT.
- a second-layer thin film made of the second noble metal (platinum) is formed only on the working electrode WE, the reference electrode RE, and the wirings LW and LR.
- the electrode plate (second electrode terminal) 18b of the second plating apparatus 10a is connected to the positive side of the power supply unit 18a, and the electrode member (second electrode member) 19 is connected to the negative side of the power supply unit 18a. It is assumed that
- the recovery roll FR2 for the second plating apparatus 10a that has recovered the substrate FS is loaded as the supply roll FR1 for the third plating apparatus 10a.
- the treatment tank 16 of the third plating apparatus 10a has an electrolytic plating solution (third electrolytic solution) mixed with complex ions of a third noble metal (for example, silver) different from the first noble metal and the second noble metal.
- Plating solution) LQ1 is retained.
- the cutting unit 50 cuts the electrical connection between the first specific pattern portion SPT1 and the auxiliary pattern APTa. Specifically, the cutting unit 50 cuts the electrical connection between the wiring LW connected to the working electrode WE and the auxiliary pattern APTa, so that the region WW (wiring) including the wiring LW on the substrate FS shown in FIG.
- This region WW is set in the vicinity of a position where the wiring pattern APTs connected to the auxiliary pattern APTa and the wiring LW extending in the X direction are connected.
- the cutting part 50 makes a hole in each region WW of all the patterns PTa with respect to the substrate FS before coming into contact with the third electrolytic plating solution LQ1. Therefore, a thin film of a third noble metal (silver) is further laminated by electrolytic plating only on the second specific pattern portion SPT2 in the conductive pattern PT. That is, a third noble metal (silver) thin film is formed only on the reference electrode RE and the wiring LR.
- the electrode plate (third electrode terminal) 18b of the third plating apparatus 10a is connected to the positive side of the power supply unit 18a, and the electrode member (third electrode member) 19 is connected to the negative side of the power supply unit 18a. It is assumed that
- the reference electrode RE is provided with a recovery roll FR2 for the third plating apparatus 10a that recovered the substrate FS. 4 as a supply roll FR1 for the plating apparatus 10a.
- the treatment tank 16 of the fourth plating apparatus 10a holds a potassium chloride solution saturated with silver chloride as an electrolytic plating solution (fourth electrolytic plating solution) LQ1.
- the electrode plate (fourth electrode terminal) 18b of the fourth plating apparatus 10a is connected to the negative electrode side of the power supply unit 18a, and the electrode member (fourth electrode member) 19 is connected to the positive electrode side of the power supply unit 18a. It is connected.
- a plating voltage is applied only to the second specific pattern portion SPT2 (reference electrode RE and wiring LR) via the auxiliary pattern APTa and the wiring pattern APTs, and a silver chloride thin film can be formed. it can.
- the cutting portion 50 is not used, so that the silver chloride is deposited on the second specific pattern portion SPT2 by the plating apparatus 10 of FIG. 1 described in the first embodiment.
- a thin film may be formed.
- the counter electrode CE and the wiring LC are formed of a thin film of a conductive material (for example, copper) whose first layer is a non-noble metal, and the second layer is formed of a thin film of a first noble metal (for example, gold). It becomes a laminated structure.
- the working electrode WE and the wiring LW are formed of a thin film of a conductive material (for example, copper) whose first layer is a non-noble metal, and the second layer is formed of a thin film of a first noble metal (for example, gold).
- the layer has a laminated structure formed of a thin film of a second noble metal (for example, platinum) different from the first noble metal.
- the reference electrode RE and the wiring LR are formed of a thin film of a conductive material (for example, copper) whose first layer is a non-noble metal, and the second layer is formed of a thin film of a first noble metal (for example, gold).
- the substrate FS is collected by the collection roll FR2 for each plating processing apparatus 10a, a plurality of plating processing apparatuses 10a (such as electrolytic plating) are continuously subjected to processing (electrolytic plating processing) on the plurality of plating processing apparatuses 10a.
- the substrate FS may be recovered by the recovery roll FR2 for the first time after all the processes (electrolytic plating process, etc.) are performed.
- the substrate FS supplied from the supply roll FR1 is first transferred into the first plating apparatus 10a, it is continuously collected in the second plating apparatus 10 without being recovered by the recovery roll FR2. Then, it is continuously transported to the third plating processing apparatus 10 and the fourth plating processing apparatus 10a.
- the electrode roller 18c is provided between the guide roller R2 and the guide roller R3.
- the electrode roller 18c is provided on the upstream side or the downstream side of the liquid contact portion (the processing tank 16, the guide rollers R4 and R5) and is electroplated.
- the electrode roller 18c may be provided at a position away from the liquid LQ1, that is, a position not in contact with the electrolytic plating liquid LQ1.
- the plating apparatus 10a selectively transfers a part of the conductive pattern PT made of the conductor formed on the surface of the substrate FS while conveying the substrate FS in the longitudinal direction.
- the conductive pattern PT is connected to each of the first specific pattern portion SPT1 and the second specific pattern portion SPT2 different from the first specific pattern portion SPT1, on the substrate FS,
- a conductive auxiliary pattern APTa is formed so as to extend along the longitudinal direction, and the surface of the substrate FS is applied to the first electrolytic plating solution LQ1 over a predetermined distance along the longitudinal direction.
- the first liquid contact portion With respect to the first liquid contact portion to be contacted and the transport direction of the substrate FS, the first liquid contact portion is provided on the upstream side or the downstream side of the first liquid contact portion and contacts the auxiliary pattern APTa to form the first electrolytic plating solution LQ1.
- 50 and a second liquid contact portion for bringing the surface of the sheet substrate FS that has been subjected to electroplating with the first electroplating solution LQ1 into contact with the second electroplating solution LQ1 over a predetermined distance along the longitudinal direction.
- the first noble metal (eg, gold) thin film is formed on the entire conductive pattern PT by electrolytic plating.
- the first noble metal thin film is formed by electroless plating. May be.
- a resist layer 52 having a rectangular opening 52a including a region corresponding to the electrode portion E is formed on the conductive pattern PT of the substrate FS. Therefore, even when the substrate FS covered with the resist layer 52 is immersed in an electroless plating solution, the resist layer 52 serves as a mask, so that a first noble metal thin film can be formed in the region of the electrode portion E. it can.
- the opening 52a of the resist layer 52 only needs to be open at least in a region corresponding to the electrode portion E (for example, a 2 mm square dimension), patterning accuracy when exposing the resist layer 52 (positioning accuracy of exposure light) ) Need not be precise.
- a portion including the electrode portion E and the wirings LW, LC, and LR (a portion of the pattern PTa) is cut out from the substrate FS and used as one sensor head. In that case, the cut-out sensor head wirings LW, LC, and LR are connected to the sensor circuit as shown in FIG.
- the resist layer 52 has a rectangular shape in the region corresponding to the end of the wirings LW, LC, and LR on the side connected to the auxiliary pattern APTa. Exposure processing may be performed so as to have the opening 52b. As a result, it is possible to increase the strength of the portions of the wirings LW, LC, and LR that are connected to other wirings and members (increase the plating thickness).
- As a method of forming a gold thin film as the first noble metal by electroless plating there are a substitution type and a reduction type.
- the resist layer 52 may also be used when performing the electroplating described in the second embodiment and the first embodiment.
- the first and second embodiments may be modified as follows.
- each pattern PTa of the conductive pattern PT has a shape corresponding to one electrode portion E and wiring connected to each electrode of one electrode portion E.
- the sensor head portion including the above pattern is cut out and used after completion, but each pattern PTa (hereinafter referred to as PTa ′) of the conductive pattern PT of Modification 1 has a plurality of (here, four) electrode portions E. And a configuration including a pattern having a shape corresponding to the wiring connected to each electrode of each electrode portion E is cut out and used as one sensor head portion.
- FIG. 10 is a diagram showing an example of the pattern PTa ′ in the first modification.
- the pattern PTa ′ includes four electrode portions E1 to E4 arranged adjacent to each other in a matrix, and each of the four electrode portions E1 to E4 (working electrodes WE1 to WE4, counter electrodes CE1 to CE4, and reference electrodes) Patterns having shapes corresponding to the wirings LW1 to LW4, LC1 to LC4, and LR1 to LR4 connected to RE1 to RE4).
- This pattern PTa ′ is formed of a conductive material.
- the working electrodes WE1 to WE4 of the four electrode portions E1 to E4 arranged adjacent to each other in a matrix shape by the method shown in the first or second embodiment.
- Counter electrodes CE1 to CE4, reference electrodes RE1 to RE4, and wirings LW1 to LW4, LC1 to LC4, and LR1 to LR4 connected to the respective electrodes of the four electrode portions E1 to E4 It can be selectively electroplated with the material.
- these four electrode parts E1 to E4 are configured as the electrode part 60 of the sensor device, and a different reagent (including a different enzyme) is applied to each electrode part E1 to E4 or a test paper impregnated with the reagent. By sticking, it is possible to provide a sensor device (sensor head) capable of simultaneously performing examinations corresponding to a plurality of examination items other than blood glucose concentration measurement.
- a thin film of a noble metal such as gold, platinum, or silver is formed on the conductive pattern PT by electrolytic plating.
- a noble metal such as gold, platinum, or silver
- electrolytic plating not limited to other metals that can be electrodeposited (electroplated) from a solution. These metals that can be electroplated include Zn (zinc), Cr (chromium), Mn (manganese), Fe (iron), Co (cobalt), Ni (nickel), Cu (copper), Ge (germanium), and Pd. (Palladium), In (indium), Sn (tin), Hg (mercury), Ti (titanium), and the like.
- FIG. 11 is a schematic configuration diagram of a sensor device (ribbon sensor) 70 according to the third embodiment.
- the sensor device 70 includes a plurality of electrode portions 72 formed at each of a plurality of positions along the longitudinal direction on the substrate FS, a plurality of detection circuit portions 74 provided for each electrode portion 72, and a host control device. 76.
- the detection circuit unit 74 and the host controller 76 are provided on the substrate FS.
- One electrode part 72 and one detection circuit part 74 provided corresponding to the one electrode part 72 constitute a detection unit DU.
- a plurality of detection units DU are provided at a plurality of locations on the substrate FS that are separated along the longitudinal direction.
- the length of the substrate FS of the sensor device 70 in the long direction is, for example, 30 to 100 m, and the short direction is, for example, about 5 mm to 5 cm.
- the detection units DU are discretely provided on the substrate FS at intervals of, for example, 30 cm to 5 m along the lengthwise direction of the substrate FS.
- the electrode unit 72 has an electrode pair (a pair of electrodes) that comes into contact with the soil that is the object to be detected, and the detection circuit unit 74 detects an electrical change between the electrode pairs (between the pair of electrodes).
- the host control device (information collecting unit) 76 controls the plurality of detection circuit units 74 and collects detection signals (measurement values) detected by the plurality of detection circuit units 74.
- conductive power supply line portions 80 for supplying a power supply voltage to each of the plurality of detection circuit portions 74 are formed on the substrate FS.
- the power supply line 80 continuously extends from the host controller 76 toward the end of the substrate (transmission member) FS along the longitudinal direction.
- the host controller 76 applies a drive voltage to the power supply line unit 80.
- the power supply line section (power supply wiring, power path) 80 includes a positive power supply line 80a to which the drive potential Vdd is applied by the host controller 76 and a negative power supply line 80b to which the reference potential (for example, ground potential) Vss is applied.
- the substrate (transmission member) FS is formed with a signal transmission line portion (signal wiring, transmission path) 82 for performing communication between the plurality of detection circuit portions 74 and the host control device 76.
- the signal transmission line unit 82 continuously extends from the host controller 76 toward the end of the substrate FS along the longitudinal direction.
- the signal transmission line unit 82 sends a detection signal detected by the detection circuit unit 74 to the host control device 76, and sends command information from the host control device 76 to each detection circuit unit 74.
- the host controller 76 since the host controller 76 is provided on one end side of the substrate FS, the power line unit 80 and the signal transmission line unit 82 are directed from the host controller 76 toward the other end side of the substrate FS. It extends.
- FIG. 12 is a diagram showing the configuration of one detection unit DU (the electrode unit 72 and the detection circuit unit 74 provided corresponding to the electrode unit 72).
- the electrode part 72 has one or a plurality of electrode pairs in order to detect different physical or chemical characteristics of the soil.
- the electrode part 72 has two electrode pairs 90 and 92, but the number of electrode pairs in the electrode part 72 may be one, or three or more. There may be.
- the electrode pair 90 composed of a pair of electrodes 90a and 90b is an electrode for detecting (measuring) the EC value (electric mobility, electrical conductivity) of soil. Therefore, the electrodes 90a and 90b are electrodes whose surfaces are plated with a noble metal such as gold or platinum.
- the electrode pair 92 composed of a pair of electrodes 92a and 92b is for detecting (measuring) the pH value (acidity) of the soil. Therefore, the electrode 92a is an electrode plated with zinc (Zn) on the surface, and the electrode 92b is an electrode plated with a noble metal such as gold or platinum or an electrode made of SUS (stainless steel). . Note that at least one of the electrode pairs 90 and 92 may be an electrode for detecting physical or chemical characteristics (for example, soil moisture) other than the EC value or the pH value.
- the detection circuit unit 74 having the microcomputer chip (control unit) 74 a is connected to the power supply line unit 80. That is, the detection circuit unit 74 is connected to the positive power supply line 80a and the negative power supply line 80b. As a result, a driving voltage (a potential difference obtained by subtracting the reference potential Vss from the driving potential Vdd) is applied to the detection circuit unit 74.
- a driving voltage (a potential difference obtained by subtracting the reference potential Vss from the driving potential Vdd) is applied to the detection circuit unit 74.
- one electrode 90a, 92a is connected to the microcomputer chip 74a
- the other electrode 90b, 92b is connected to the negative power supply line 80b.
- the electrodes 90a of the electrode pair 90 for detecting the EC value are individually connected to the microcomputer chip 74a via resistors Ra and Rb, respectively.
- the electrode 92a of the electrode pair 92 for pH value detection is connected to the microcomputer chip 74a via a resistor Rc.
- the microcomputer chip 74a applies a potential to the electrode 90a of the electrode pair 90 via the resistor Ra, and causes a voltage drop according to the resistance value between the electrode pair 90 (between the pair of electrodes 90a and 92b) using the resistor Rb. To detect.
- the microcomputer chip 74a is a PIC (peripheral interface controller) of a low power consumption one-chip microcomputer incorporating an analog / digital conversion circuit (ADC), a digital / analog conversion circuit (DAC), a serial interface circuit, a memory unit, and the like. Consists of.
- the microcomputer chip 74a performs AD conversion on the voltage (EC value) indicating the voltage drop detected via the resistor Rb, and outputs it to the host control device 76 via the serial signal transmission line unit 82. Further, the microcomputer chip 74a detects the electromotive force generated in the electrode pair 92 (between the pair of electrodes 92a and 92b) using the resistor Rc. The microcomputer chip 74 a performs AD conversion on the voltage (pH value) indicating the detected electromotive force, and outputs it to the host control device 76 via the signal transmission line unit 82.
- the detection circuit unit 74 further includes a temperature sensor IC 74b, and a voltage corresponding to the temperature of the soil (or moisture in the soil) that is the detected object detected (measured) by the temperature sensor IC 74b is output to the microcomputer chip 74a.
- the microcomputer chip 74 a performs AD conversion on the voltage (temperature) corresponding to this temperature and outputs it to the host controller 76 via the signal transmission line unit 82.
- the crop is cultivated by collecting the environmental characteristics such as the EC value, the pH value, and the temperature output from each of the plurality of detection circuit units 74 (the microcomputer chip 74a) in the host control device 76.
- the environmental characteristics of the soil (soil condition, etc.) can be grasped collectively.
- the host control device 76 can also transmit the collected environmental values of the soil, such as the EC value, pH value, and temperature, to an external control device (computer) (not shown) by wireless communication.
- the memory part of the microcomputer chip 74a defines the measurement program necessary for measuring each of the EC value, pH value, and temperature, the order of the measurement operation for each of the EC value, pH value, and temperature, and the number of times of measurement. And a communication program for exchanging the collected EC value, pH value, and temperature data (digital values) with the host controller 76 via the signal transmission line unit 82 are stored.
- the power is supplied to the detection circuit unit 74 (microcomputer chip 74a) that is located away from the host controller 76.
- the voltage may drop below an operable value.
- the resistance value per unit length cannot be made sufficiently small when the plus power line 80a and the minus power line 80b are thin copper foils formed on the substrate FS by vapor deposition or plating, etc. It is a voltage drop. Therefore, the positive power supply line 80a and the negative power supply line 80b are preferably formed wide (thick) as much as possible. Further, the host controller 76 controls the detection circuits 74 (microcomputer chip 74a) so that timings (intervals) at which various measurements are performed do not overlap, so that a large current does not flow through the power supply lines 80a and 80b. You may manage as follows.
- 11 and 12 may be configured such that the electrode part 72 of one detection unit DU is positioned near the seeds and roots of the plant planted in the soil of the field. Further, since the ribbon sensor 70 is embedded in the soil for about six months to one year, the portions other than the electrode portion 72 are covered with an insulating resin layer so as not to be affected by moisture in the soil. ing. Further, since the zinc (Zn) of the electrode 92a shown in FIG. 12 for detecting (measuring) the pH value (acidity) of the soil is gradually eluted by the moisture of the soil, the electroplating time is lengthened as much as possible. It is better to deposit so as to increase the thickness. Further, when the electrode 92b is made of SUS (stainless steel), since SUS cannot be precipitated by plating, a thin piece of SUS may be attached to the electrode portion of the copper foil with a conductive paste or adhesive.
- SUS stainless steel
- the substrate FS of the sensor device (ribbon-shaped sensor) 70 is provided with an opening 102 for holding the seed 100 in the vicinity of the electrode pair 90, 92 of each electrode 72, It is good also as a structure which affixed the film 104 for covering the opening part 102 on the surface side and back surface side of the board
- the seed 100 of a plant can be hold
- the film 104 is preferably a cellulose film that allows moisture to pass through, but may be a fabric having a finer mesh than the size of the seed 100, water-soluble paper, or the like.
- the sensor device 70 By embedding the long film-like sensor device (ribbon sensor) 70 formed as described above in the soil of the field, the sensor device 70 can be embedded and the crop seed 100 can be planted at the same time. Efficiency can be improved. Further, by having such a configuration, the electrode pair 90, 92 can be installed in the vicinity of the seed 100, so that the environmental characteristics (soil condition) of the soil where the seed 100 is actually grown can be accurately grasped. can do. Therefore, the environmental characteristics of the soil can be continuously and accurately monitored from germination to harvest time.
- a plurality of detection circuit portions 74 provided corresponding to each of the plurality of electrode portions 72 are connected to the power supply line portion 80 in parallel.
- a plurality of detection circuit units 74 are provided at intervals of 30 cm along the long direction with respect to the substrate FS having a length of 30 m in length, about 100 detection circuit units 74 are connected in parallel. It will be connected to the line unit 80. Therefore, when all 100 detection circuit units 74 are set in the active state (the first mode in which the normal operation is performed), as they go from the host controller 76 toward the front end side of the substrate FS, that is, as the distance from the host controller 76 increases. Therefore, sufficient power cannot be supplied to the detection circuit unit 74.
- the microcomputer chip 74a described above with reference to FIG. 12 has a function of switching between an active state (first mode in which normal operation is performed) and a sleep state (second mode in which the function is suspended) in response to an external signal ( It has a mode switching unit.
- each of the plurality of detection circuit units 74 including the mode switching unit is connected to the detection circuit unit 74 positioned in the front and rear direction via a signal line 110.
- the upper control device 76 is assumed to be the front, and the opposite side of the upper control device 76 is assumed to be the rear.
- the signal line 110 connected to the detection circuit unit 74 of the previous stage is assumed to be 110a, and the latter stage.
- the signal line 110 connected to the detection circuit unit 74 is 110b. Since the detection circuit unit 74 is not provided in front of the detection circuit unit 74 at the front stage, the signal line 110a of the detection circuit unit 74 at the front stage is connected to the host controller 76. Further, since the detection circuit unit 74 is not provided behind the last-stage detection circuit unit 74, the signal line 110b is not provided in the last-stage detection circuit unit 74.
- the detection circuit unit 74 at the foremost stage When receiving the active signal ACS sent from the mode switching unit provided in the host control device 76 through the signal line 110a, the detection circuit unit 74 at the foremost stage becomes active, and becomes active through the signal line 110a. A reply signal ANS indicating that the state has been reached is output to the host controller 76.
- the detection circuit unit 74 in the foremost stage measures the state of the soil (EC value, pH value, temperature, etc.) when it enters the active state, and when the measurement of the state of the soil and the transmission of the measurement data to the host controller 76 are completed.
- the active signal ACS is output to the detection circuit unit 74 at the subsequent stage (next stage) via the signal line 110b.
- the detection circuit unit 74 at the foremost stage receives the return signal ANS from the detection circuit unit 74 at the subsequent stage via the signal line 110b, the detection circuit unit 74 enters the sleep state.
- the detection circuit unit 74 By repeating such an operation, it is possible to sequentially switch one detection circuit unit 74 to be in an active state from the detection circuit unit 74 at the front stage to the detection circuit unit 74 at the last stage. Since the power consumption of the detection circuit unit 74 in the sleep state is very small, the necessary power can be reliably supplied to the detection circuit unit 74 in the active state.
- the host controller 76 outputs an active signal ACS to the detection circuit unit 74 at the forefront stage when a predetermined cycle timing or a predetermined condition is satisfied.
- the electrode part 72 (electrode pair 90, 92) of the sensor device 70 having the above-described configuration can be manufactured using the plating apparatus 10, 10a described in the first or second embodiment.
- the power supply line unit 80, the signal transmission line unit 82, the terminal pad for connecting the terminals of the microcomputer chip 74a, the terminal pad for connecting the terminals of the temperature sensor IC 74b, and the electrode pair 90 of the electrode unit 72 , 92 and the like are formed on the substrate FS.
- the conductive patterns PT a plurality of specific pattern portions SPT are configured by pattern portions corresponding to the electrodes 90a, 90b, 92a, 92b of the electrode pairs 90, 92.
- a plurality of auxiliary patterns APT connected to each of the plurality of specific pattern portions SPT or auxiliary patterns APTa connected to all the specific pattern portions SPT are formed on the substrate FS. Therefore, it is possible to form a thin film of a different metal (for example, a noble metal) on the surface of each electrode 90a, 90b, 92a, 92b. Then, after the electrode pairs 90 and 92 are formed, the sensor device 70 can be manufactured by mounting the microcomputer chip 74a, the temperature sensor IC 74b, and the host controller 76 on the substrate FS with a low-temperature solder paste or the like. it can. As the material of the thin film formed on the electrode surface of the electrode part 72, an optimal material may be selected according to the detection target.
- a different metal for example, a noble metal
- the electrodes 90a, 90b, 92a, and 92b are not formed by electrolytic plating, but the electrodes 90a and 90b are attached by attaching a tape (conductive) on which a thin film of metal (for example, a noble metal or SUS) is formed on the surface.
- a tape conductive
- a thin film of metal for example, a noble metal or SUS
- 92a, 92b may be formed.
- the sensor device 70 detects (measures) the environmental characteristics (physical or chemical characteristics included in the soil) of the soil in the field where the plant grows. Alternatively, it may be used for detection of environmental characteristics (for example, physical or chemical characteristics such as fresh water or seawater) of aquaculture farms for culturing (growing) fish and shellfish.
- the detection unit DU detection circuit unit 74
- the detection unit DU detection circuit unit 74
- the number of DUs may be plural (however, smaller than the total number of detection circuit units 74), and the plurality of detection units DU that are in the active state may be sequentially switched. Thereby, the environmental characteristics from all the detection units DU can be collected quickly.
- the sensor device 70 measures physical or scientific environmental characteristics of a field where plants are grown or a farm where animals or seafood are cultivated.
- the sensor device 70 can be installed in a farm or a farm, and has a long signal transmission line portion 82 formed from one end side to the other end side and a power supply line portion 80 for supplying power. It is provided at each of the substrate FS which is a transmission member and a plurality of locations separated from each other in the longitudinal direction of the substrate FS, and is connected in parallel to the power line 80, and detects the environmental characteristics of the field or the farm and transmits signals.
- a plurality of detection units DU that output to the line unit 82 and a host controller 76 that collects environmental characteristics output from the plurality of detection units DU via the signal transmission line unit 82 are provided.
- the host controller 76 collects environmental characteristics, a predetermined number of detection units DU out of the plurality of detection units DU are in an active state to detect environmental characteristics, and the detection units DU that have finished detecting environmental characteristics are detected. Switches the other detection units DU that are not yet active from the sleep state to the active state among the plurality of detection units DU.
- the line width of the metal material (copper foil, etc.) of the wiring pattern constituting the power supply line portion 80 can be reduced, and the thickness can be reduced. Flexibility as a (ribbon-shaped sensor sheet) can be enhanced.
- FIG. 14 is a schematic configuration diagram showing a schematic configuration of a plating apparatus according to the fourth embodiment.
- electrolytic plating with two kinds of metal materials can be continuously performed via the auxiliary patterns APT1 and APT2 on both sides on the substrate FS as shown in FIG.
- each of the first plating processing apparatus 10A and the second plating processing apparatus 10B is basically the same as the electrode roller 18c, processing tank 16, electrode plate 18b, and cleaning tank as in the plating processing apparatus 10 of FIG. 20 and a drying unit 22.
- the electrolytic plating solution stored in the processing tank 16 of the first plating apparatus 10A and the electrolytic plating liquid stored in the processing tank 16 of the second plating apparatus 10B are different from each other, for example,
- a predetermined portion of the conductive pattern PT on the substrate FS is subjected to electrolytic plating of gold (Au), and in the second plating apparatus 10B, the predetermined portion of the conductive pattern PT is applied.
- electrolytic plating of noble metals (such as platinum) other than gold is performed.
- the negative electrode side of the power supply unit 18a is connected to the electrode member 19 (FIGS. 3 and 4) of the electrode roller 18c as an example, and the positive electrode side of the power supply unit 18a is connected to the treatment tank 16 as an example. It connected to the electrode plate 18b immersed in the electroplating liquid LQ1, and the negative electrode side was earth
- the DC voltage output from the (second power supply unit) 18a is a power supply in a floating state so as not to have a common potential (for example, ground potential).
- a common potential for example, ground potential
- the electrode member 19 provided on the electrode roller 18c of the first plating apparatus 10A and in contact with the auxiliary pattern APT1 on one side of the substrate FS is 19A
- the electrode roller 18c of the second plating apparatus 10B is 19A
- An electrode member 19 provided in contact with the auxiliary pattern APT2 on the other side of the substrate FS is denoted as 19B.
- the electrode member 19A is contained in the electrolytic plating solution stored in the processing tank 16 of the first plating apparatus 10A. Electrons flow from the auxiliary pattern APT1 and the conductive pattern portion connected to the auxiliary pattern APT1 to the electrode plate 18b through the auxiliary pattern APT1, and plating processing (for example, gold plating) is performed.
- plating processing for example, gold plating
- the substrate FS plated by the first plating apparatus 10A is carried into the next second plating apparatus 10B in a dried state.
- the electrolytic plating solution stored in the processing tank 16 of the second plating apparatus 10B When the substrate FS is being transported through the second plating apparatus 10B at a constant speed, if the second power supply unit 18a is energized, the electrolytic plating solution stored in the processing tank 16 of the second plating apparatus 10B. In this case, electrons flow in the direction from the auxiliary pattern APT2 and the conductive pattern portion connected to the auxiliary pattern APT2 to the electrode plate 18b via the electrode member 19B, and a plating process (for example, platinum plating) is performed.
- a plating process for example, platinum plating
- the first power supply unit 18a Since both the positive electrode side and the negative electrode side of the second power supply unit 18a and the positive electrode side and the negative electrode side of the second power supply unit 18a are in a floating state that are not electrically connected to each other, the treatment tank 16 of the first plating apparatus 10A is used. No current flows from the electrolytic plating solution to the auxiliary pattern APT2, and therefore, in the first plating apparatus 10A, the auxiliary pattern APT2 and the conductive pattern portion connected thereto are not subjected to plating.
- a potential on the negative side of the first power supply unit 18a is applied to the auxiliary pattern APT1 of the substrate FS that passes through the processing tank 16 of the second plating apparatus 10B, but the first power supply unit 18a.
- the second power supply unit 18a are in a floating state, so that no current flows from the electrolytic plating solution in the processing tank 16 of the second plating apparatus 10B to the auxiliary pattern APT1, and accordingly, the second plating apparatus 10B.
- the auxiliary pattern APT1 and the conductive pattern portion connected thereto are not plated.
- the treatment tank 16 store the electrolytic plating solution with an insulating material (acrylic resin, polycarbonate resin, ceramic, etc.).
- the conductive pattern portion connected to all of the auxiliary pattern APT1 and the auxiliary pattern APT2 may be plated in the first plating apparatus 10A.
- both the auxiliary patterns APT1 and APT2 and all conductive pattern portions (wiring portions and electrode portions) connected thereto are gold-plated.
- the next second plating apparatus 10B according to the potential difference (polarity direction) between the auxiliary pattern APT1 and the auxiliary pattern APT2 passing through the electrolytic plating solution in the treatment tank 16 of the second plating apparatus 10B.
- a plating layer made of another metal for example, platinum is deposited on the conductive pattern portion (the pattern portion previously plated with gold by the first plating apparatus 10A) connected to the auxiliary pattern APT2.
- each of the auxiliary patterns APT1 and APT2 has a certain length in the longitudinal direction of the substrate FS. Even if it is not provided intermittently for each section, selective plating with different metal species for each electrode is possible.
- FIG. 15 shows an example in which the third auxiliary pattern APT3 is provided in addition to the two auxiliary patterns APT1 and APT2 as shown in FIG. 2.
- the three counter electrodes CE constituting the electrode portion E are shown.
- Each of the working electrode WE and the reference electrode RE is electrolytically plated with different metal species.
- the counter electrode CE is connected to the auxiliary pattern APT1 via the wiring pattern APTs
- the working electrode WE is connected to the auxiliary pattern APT2 via the wiring pattern APTs
- the reference electrode RE is connected to the auxiliary pattern APT3 via the wiring pattern APTs.
- two auxiliary patterns APT2 and APT3 are provided in parallel with each other along the longitudinal direction at a certain interval in the Y direction on one side (+ Y direction side) of the substrate FS in the width direction. It has been. In FIG.
- the wiring pattern APTs connected to the auxiliary pattern APT2 (extends in the Y direction). ) Is short-circuited with the auxiliary pattern APT3 as it is.
- each of the auxiliary patterns APT1 and APT2 and the pattern up to the counter electrode CE and the working electrode WE connected thereto are formed on the substrate FS as the first layer pattern.
- an insulating layer ISO for preventing a short circuit is formed in a region that can cross the auxiliary pattern APT3 on the wiring pattern extending in the Y direction from the auxiliary pattern APT2.
- FIG. 15 shows the case where the insulating layer ISO is partially formed in the intersecting region, it may be continuously formed in the longitudinal direction along the region where the auxiliary pattern APT3 is formed.
- a pattern up to the auxiliary pattern APT3 and the reference electrode RE connected thereto is formed as the second layer pattern. Part or all of the auxiliary pattern APT3 is formed on the insulating layer ISO.
- a deletion portion Np obtained by partially cutting the auxiliary pattern APT3 is provided. All the auxiliary patterns APT1, APT2 and the conductive patterns PT (electrodes CE, WE, RE, etc.) are formed together with the auxiliary pattern APT3 including the deleted portion Np by etching a copper foil or the like. Thereafter, the insulating layer ISO is selectively applied to the deleted portion Np by ink jet droplets and cured, and then the deleted portion Np of the auxiliary pattern APT3 is connected with an ink containing metal nanoparticles. It may be applied across ISO and dried.
- Each of the three auxiliary patterns APT1 to APT3 thus formed on the substrate FS is in contact with the annular electrode members 19A, 19B, and 19C formed on the electrode roller 18c, and is supplied with a voltage for electrolytic plating.
- one electrode roller 18c is provided with electrode members 19A, 19B, and 19C corresponding to the positions in the Y direction of the auxiliary patterns APT1 to APT3, but will be described with reference to FIGS.
- any one of the electrode members 19A, 19B, and 19C may be connected to one polarity of the voltage from the power supply unit.
- one of the polarities of the voltage from the power supply unit may be connected to each of the electrode members 19A, 19B, and 19C in a floating state.
- FIG. 16 is a schematic configuration diagram showing a schematic configuration of a plating apparatus according to the fifth embodiment.
- the treatment tank 16A for storing the electrolytic plating solution of the plating apparatus has a flat and shallow shape along the XY plane, and two guide rollers R4 ′ and R5 ′ provided in the treatment tank 16A. Is supported by the bearing portion 16C and the like so that only the lower end portion is immersed in the electrolytic plating solution LQ1 stored shallowly on the bottom surface of the processing tank 16A.
- Two guide rollers R4 ′ and R5 ′ that are parallel to each other are arranged at regular intervals in the X direction (longitudinal direction), and are supported by the lower ends of the two guide rollers R4 ′ and R5 ′. Is stretched between the guide rollers R4 ′ and R5 ′ with a predetermined tension in the X direction.
- An electrode plate 18b is provided on the bottom surface of the processing tank 16A, and the substrate FS is arranged so that the surface to be plated faces toward the electrode plate 18b.
- the plating surface of the substrate FS (the surface on the ⁇ Z direction side in FIG. 16) is held in the electrolytic plating solution LQ1 so as to be at a certain distance from the electrode plate 18b.
- the + Y direction side of the bottom surface of the processing tank 16A is an upward inclined surface 16b, and the end portion FSe in the Y direction (width direction) of the substrate FS is lifted along the inclined surface 16b, and the end portion FSe is electrolyzed. It is held by nip type guide rollers R20 and R21 so as not to come into contact with the plating solution LQ1. A plurality of nip-type guide rollers R20 and R21 are provided at predetermined intervals in the X direction.
- An auxiliary pattern APTa as shown in FIG. 7 or auxiliary patterns APT2 and APT3 as shown in FIG. 15 are formed on the end portion FSe of the substrate FS.
- the substrate FS is transported in the X direction without the auxiliary pattern APTa of the end portion FSe or the auxiliary patterns APT2 and APT3 being in contact with the electrolytic plating solution LQ1, and the auxiliary pattern APTa.
- the plating process for the auxiliary patterns APT2 and APT3 is prevented.
- the auxiliary patterns APTa or the auxiliary patterns APT2 and APT3 are formed with a relatively wide width in order to ensure the stability of energization for electrolytic plating.
- the auxiliary patterns APTa or the auxiliary patterns APT2 and APT3 are continuously formed in the X direction, the total length thereof is equal to the total length of the substrate FS wound around the supply roll FR1.
- the auxiliary pattern APTa when the entire substrate FS is immersed in the electrolytic plating solution LQ1, the auxiliary pattern APTa, the plating deposition amount on the conductive pattern portion to be plated (counter electrode CE, working electrode WE, reference electrode RE, etc.) Alternatively, there is a possibility that the plating deposition amount on the auxiliary patterns APT2 and APT3 is relatively increased. That is, a large amount of plating deposits are generated even in a portion that originally does not require the plating treatment, and the consumption of the electrolytic plating solution LQ1 and the electrode plate 18b is accelerated.
- the auxiliary pattern is referred to as an auxiliary pattern. Unnecessary portions are prevented from being plated, and consumption of the electrolytic plating solution LQ1 and the electrode plate 18b can be suppressed. Further, as shown in FIG. 16, by using the processing tank 16A that transports the substrate FS substantially horizontally between the two guide rollers R4 ′ and R5 ′, the usage amount of the electrolytic plating solution LQ1 itself is reduced.
- the concentration management and temperature management of the electrolytic plating solution LQ1 are facilitated.
- the end portion FSe of the substrate FS is held in the atmosphere and is in a dry state.
- the current collecting roller Eb as shown in 5B may be in direct contact with the auxiliary pattern APTa or the auxiliary patterns APT2 and APT3.
- FIG. 17 is a schematic configuration diagram showing a schematic configuration of a plating apparatus according to the sixth embodiment.
- the substrate FS sent in the longitudinal direction is wound around the cylindrical outer peripheral surface of the rotary drum DR and conveyed, and the rotary drum DR is immersed in the electrolytic plating solution LQ1 in the treatment tank 16B.
- the rotary drum DR has an outer peripheral surface having a constant radius from the rotation center axis AXo extending in the Y direction, and is made of a material (non-conductive material) that is not eroded by the electrolytic plating solution LQ1 and does not precipitate.
- the rotary drum DR is preferably an insulating material.
- the inner wall at the bottom of the processing tank 16B of the present embodiment is formed in a concave cylindrical surface shape that maintains a certain clearance from the outer peripheral surface (substrate FS) of the rotating drum DR.
- the gap can be set to about several mm to several tens of mm.
- An electrode roller 18c that comes into contact with the auxiliary pattern on the substrate FS is provided on the carry-in side of the substrate FS above the rotating drum DR (position before contacting the electrolytic plating solution LQ1).
- the electrode roller 18c is the same as the electrode roller 18c shown in FIG. 3, FIG. 4, FIG.
- a guide roller R22 that changes the transport direction of the substrate FS is provided on the carry-out side of the substrate FS above the rotary drum DR.
- the surface of the substrate FS to be plated is opposite to the surface in contact with the rotary drum DR.
- a plurality of rod-like electrode bars 18b1, 18b2, 18b3,... 18b7, 18b8 functioning in the same manner as the electrode plate 18b are located below the surface of the electrolytic plating solution LQ1 on the inner wall surface of the processing tank 16B.
- ,... 18b15, 18b16, 18b17 (hereinafter collectively referred to as 18bn) are provided so as to be in contact with the electrolytic plating solution LQ1.
- 18bn are arranged at predetermined intervals along the circumferential direction of the recessed cylindrical inner wall surface.
- the dimension of each electrode bar 18bn in the Y direction is set to correspond to the width of the substrate FS (dimension in the Y direction).
- a potential of one polarity from the power supply unit 18a is applied to each of the 17 electrode bars 18bn.
- the applied potential (voltage between the electrode member 19 of the electrode roller 18c and the electrode bar 18bn) varies depending on the circumferential position of the electrode bar 18bn (position along the transport direction of the substrate FS). Also good.
- the potential applied to the first half electrode bars 18b1, 18b2, 18b3,... 18b7 while the substrate FS passes through the electrolytic plating solution LQ1 along the outer peripheral surface of the rotary drum DR is lowered, and the latter electrode bar 18b8.
- the potential applied to 18b15, 18b16, and 18b17 may be set higher.
- the plating voltage applied to the electrolytic plating solution LQ1 is changed from a low state to a high state, thereby being deposited on the surface of the conductive pattern on the substrate FS. It is possible to shorten the plating time and increase the thickness of the plating layer while making the plating layer dense.
- the time (plating time) for contacting the substrate FS with the electrolytic plating solution LQ1 is TL
- the transport speed of the substrate FS is Vf
- the diameter of the rotating drum DR is ⁇ and the substrate FS as shown in FIG.
- Lxa is the interface position where the substrate begins to come into contact with the electrolytic plating solution LQ1
- Lxb is the interface position where the substrate FS escapes from the electrolytic plating solution LQ1
- the line segment connecting the interface position Lxa and the central axis AXo is connected to the interface position Lxb and the central axis AXo.
- the inner wall of the processing tank 16B is formed in a cylindrical surface shape so as to form a substantially constant gap from the outer peripheral surface of the rotary drum DR. Is considerably smaller than the amount of liquid in the case of the processing tank 16 as shown in FIG. Therefore, the concentration management and temperature management of the electrolytic plating solution LQ1 are facilitated, and the operation of circulating or replacing the electrolytic plating solution LQ1 for refreshing is also short. Furthermore, in the present embodiment, the gap between the side wall portion (parallel to the XZ surface) facing the end surface (parallel to the XZ surface) of the rotating drum DR in the inner wall of the processing tank 16B and the end surface of the rotating drum DR. Therefore, the amount of the electrolytic plating solution LQ1 stored in the processing tank 16B can be further reduced.
- FIG. 18 shows a schematic configuration of a plating apparatus according to the seventh embodiment.
- the upper part is a plan view of the plating apparatus viewed in the XY plane
- the lower part is a plan view of the plating apparatus in the XZ plane.
- FIG. in the present embodiment as in the second embodiment described with reference to FIGS. 7 and 8, a part of the conductive pattern electrically connected to the specific pattern portion formed on the substrate FS is obtained. By cutting with the cutting part 50 etc., the plating to a specific pattern part is prevented. Therefore, the plating apparatus shown in FIG. 18 is basically configured in the same manner as in FIG. Therefore, the detailed description of the members in FIG. 18 that are the same as those in FIG. 8 and that have the same function is omitted.
- the first auxiliary pattern APT1 and the second auxiliary pattern APT2 described in FIG. 2 and FIG. 14 are the width direction (Y direction) of the substrate FS. It is formed in parallel with the longitudinal direction in the central part of.
- the substrate FS obtained by electroplating with the first metal on the surface of the copper foil
- the surface of the second specific pattern portion formed in the half region on the ⁇ Y direction side of the substrate FS Is carried out, and electroplating with a second metal different from the first metal is performed only on the surface (plating layer with the first metal) of the second specific pattern portion.
- the electrode roller 18c that contacts the surface on which the auxiliary patterns APT1 and APT2 and the specific pattern portion of the substrate FS are formed is provided with an annular electrode member 19 at the center portion in the Y direction.
- an idle roller 18e that presses the auxiliary patterns APT1 and APT2 so as to be in close contact with the electrode member 19 of the electrode roller 18c is provided.
- a cutting unit 50 for cutting a part of the first auxiliary pattern APT1 on the substrate FS is provided on the upstream side of the electrode roller 18c with respect to the moving direction of the substrate FS.
- the cutting unit 50 is a mechanical punch or a laser punch that forms a through hole HW in the substrate FS.
- the through hole HW is formed in a circular shape (or rectangular shape) having a size larger than the line width in the Y direction of the first auxiliary pattern APT1.
- the cutting unit 50 is mounted with an image sensor (CCD or CMOS) that enlarges and images a local region on the substrate FS including the first auxiliary pattern APT1 (or the second auxiliary pattern APT2), and extends in the Y direction. It is provided so as to be linearly movable in the width direction (Y direction) of the substrate FS along the guide rail (straight guide member).
- the position of the cutting unit 50 in the Y direction is adjusted so that the image of the first auxiliary pattern APT1 (or the second auxiliary pattern APT2) imaged by the imaging element is at a predetermined position in the Y direction within the imaging field of view.
- a servo drive mechanism may be provided. By providing such a servo drive mechanism, even when the substrate FS moves in the longitudinal direction and greatly meanders in the width direction (Y direction), the cutting portion 50 is positioned following the position change in the Y direction. Therefore, the positional relationship in the Y direction between the through hole WH and the first auxiliary pattern APT1 can always be set precisely.
- the line width in the Y direction of the first auxiliary pattern APT1 can be set to several mm or less, for example, about 1 mm, and the dimension in the Y direction of the through hole WH can be reduced to about 2 mm. Further, the formation of the through hole WH by the cutting part 50 is performed every time the substrate FS moves by a certain distance Lxp in the longitudinal direction, and chips generated when the through hole WH is formed on the back surface side of the substrate FS. And a dust collecting part 50a for collecting gas and the like.
- the substrate FS that has passed through the cutting section 50 passes through the guide roller R2, the electrode roller 18c, and the guide roller R3 in this order, as in the configuration of FIG. It is immersed in the second electrolytic plating solution LQ1 for metal plating.
- the position in the longitudinal direction on the substrate FS where the annular electrode member 19 of the electrode roller 18c is in contact with the first auxiliary pattern APT1 (or the second auxiliary pattern APT2) is defined as Pca, and the substrate FS is
- the position in the longitudinal direction on the substrate FS starting to be immersed in the electrolytic plating solution LQ1 is Pcb
- the distance Lxs between the position Pca and the position Pcb in the longitudinal direction of the substrate FS is the distance Lxp in the longitudinal direction of the through hole HW. Is set to be longer.
- the cutting unit 50 penetrates every time the substrate FS moves in the longitudinal direction by a distance Lxp shorter than the distance Lxs. It is controlled to form the hole HW.
- first auxiliary hole HW at least one through hole HW (first auxiliary hole HW) is necessarily provided between the position Pca and the position Pcb on the substrate FS.
- voltage supply to the first specific pattern portion is not performed via the first auxiliary pattern APT1.
- the present embodiment there is no need to cut a portion of the wiring pattern that connects each of the plurality of specific patterns and the auxiliary pattern APT1 or APT2 as in the second embodiment, and the substrate FS Since it is only necessary to cut (perforate) one auxiliary pattern APT1 linearly extending in the longitudinal direction at a predetermined distance Lxp, the configuration of the cutting unit 50 becomes extremely simple, and the apparatus cost is reduced. Reduced. Furthermore, since at least one through hole HW may be formed in the distance Lxs, the total number of through holes HW can be reduced, and deformation of the substrate FS can be suppressed by reducing internal stress generated in the substrate FS.
- a method of cutting the auxiliary pattern APT1 (or auxiliary pattern APT2) linearly extending along the longitudinal direction of the substrate FS at a predetermined distance Lxp as in the present embodiment is the second method of FIG.
- This embodiment can be similarly applied.
- the electrode roller 18c (and the electrode member 19) is upstream of the processing tank 16 as a wetted part in which the electrolytic plating solution LQ1 is stored in the transport direction of the substrate FS.
- FIG. 1 As shown in FIG.
- the cutting portion 50 when the electrode roller 18c (and the electrode member 19) is positioned upstream of the processing tank 16 (electrolytic plating solution LQ1), the cutting portion 50 is connected to the electrode roller 18c (and the electrode member 19). You may arrange
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Abstract
Description
図1は、第1の実施の形態のメッキ処理装置10の概略的な構成を示す概略構成図である。なお、以下の説明においては、特に断わりのない限り、重力方向をZ方向とするX・Y・Zの直交座標系を設定し、図に示す矢印にしたがって、X方向、Y方向、および、Z方向を説明する。
次に、第2の実施の形態について説明するが、上記第1の実施の形態で説明した構成と同様の構成については同一の符号を付すとともに、異なる部分だけを説明する。第2の実施の形態においては、導電パターンPT(複数のパターンPTa)のうち、作用電極WEおよび配線LWを形成するパターン部分を第1の特定パターン部分SPT1とし、参照電極REおよび配線LRを形成するパターン部分を第2の特定パターン部分SPT2とし、対極電極CEおよび配線LCを形成するパターン部分を第3の特定パターン部分SPT3とする。また、第1の特定パターン部分SPT1~第3の特定パターン部分SPT3は、同一の補助パターンAPT(以下、APTa)に接続されているものとする。つまり、本第2の実施の形態の補助パターンAPTaは、図7に示すように、Y方向に延びた配線パターンAPTsを介して第1の特定パターン部分SPT1、第2の特定パターン部分SPT2、および、第3の特定パターン部分SPT3の各々と接続され、且つ、基板FSの長尺方向に沿って延びるように形成されている。なお、本第2の実施の形態の導電パターンPTおよび補助パターンAPTa、配線パターンAPTsは、導電材料(例えば、銅)で形成されていることは言うまでもない。
上記第1および第2の実施の形態を以下のように変形してもよい。
圃場の土壌などに含まれる物理的または化学的な特性を計測するセンサー装置の電極部を、上記第1または第2の実施の形態で示した手法によって作成してもよい。図11は、第3の実施の形態のセンサー装置(リボンセンサー)70の概略構成図である。センサー装置70は、基板FS上の長尺方向に沿った複数の位置の各々に形成された複数の電極部72と、電極部72毎に設けられた複数の検出回路部74と、上位制御装置76とを備える。検出回路部74および上位制御装置76は基板FSに設けられている。1つの電極部72と、この1つの電極部72に対応して設けられた1つの検出回路部74は、検出ユニットDUを構成する。つまり、複数の検出ユニットDUが、長尺方向に沿って離れた基板FS上の複数の箇所に設けられている。センサー装置70の基板FSの長尺方向の長さは、例えば、30m~100mであり、短尺方向は、例えば、5mm~5cm程度の長さである。検出ユニットDU(電極部72および検出回路部74)は、基板FSの長尺方向に沿って、例えば、30cm~5m間隔で基板FSに離散的に設けられている。
図14は、第4の実施の形態によるメッキ処理装置の概略的な構成を示す概略構成図である。本実施の形態では、先の図2に示したような基板FS上の両側の補助パターンAPT1、APT2を介して、2種類の金属材料による電解メッキを連続的に施すことができる。図14において、第1のメッキ処理装置10Aと第2のメッキ処理装置10Bの各々は、基本的に図1のメッキ処理装置10と同様の電極ローラ18c、処理槽16、電極プレート18b、洗浄槽20、乾燥部22などを備える。但し、第1のメッキ処理装置10Aの処理槽16に貯留される電解メッキ液と、第2のメッキ処理装置10Bの処理槽16に貯留される電解メッキ液とは、互いに異なる溶液であり、例えば、第1のメッキ処理装置10Aでは、基板FS上の導電パターンPTの所定の部分に金(Au)の電解メッキが施され、第2のメッキ処理装置10Bでは、導電パターンPTの所定の部分に、例えば金以外の貴金属(白金など)の電解メッキが施される。
図16は、第5の実施の形態によるメッキ処理装置の概略的な構成を示す概略構成図である。本実施の形態では、メッキ処理装置の電解メッキ液を貯留する処理槽16Aが、XY面に沿って平たく浅い形状をしており、処理槽16A内に設けられる2つの案内ローラR4’、R5’は、処理槽16Aの底面に浅く貯留された電解メッキ液LQ1に下端部のみが浸漬するように、軸受部16Cなどによって支えられている。互いに平行な2つの案内ローラR4’、R5’は、X方向(長尺方向)に一定の間隔となるように配置され、2つの案内ローラR4’、R5’の下端部で支持される基板FSは、案内ローラR4’、R5’の間でX方向に所定のテンションを伴って張設される。処理槽16Aの底面には電極プレート18bが設けられ、基板FSは、メッキ処理される面が電極プレート18b側に向くように配置される。基板FSのメッキ処理面(図16の-Z方向側の面)は、電解メッキ液LQ1中で電極プレート18bと一定の間隔となるように保持される。
図17は、第6の実施の形態によるメッキ処理装置の概略的な構成を示す概略構成図である。本実施の形態では、長尺方向に送られる基板FSを回転ドラムDRの円筒状の外周面に巻き付けて搬送しつつ、回転ドラムDRを処理槽16B内の電解メッキ液LQ1中に浸すことによってメッキ処理を行う。回転ドラムDRは、Y方向に延びた回転中心軸AXoから一定半径の外周面を有し、電解メッキ液LQ1によって浸食されず、メッキ析出しないような材料(非導電体)で構成される。回転ドラムDRは絶縁性の材料が好ましい。本実施の形態の処理槽16Bの底部の内壁は、回転ドラムDRの外周面(基板FS)と一定の隙間を保つような凹んだ円筒面状に形成されている。その隙間は、数mm~十数mm程度に設定できる。回転ドラムDRの上方部で基板FSの搬入側(電解メッキ液LQ1と接触する前の位置)には、基板FS上の補助パターンと接触する電極ローラ18cが設けられている。この電極ローラ18cは、先の図3、図4、図15などに示した電極ローラ18cと同様のものである。さらに、回転ドラムDRの上方部で基板FSの搬出側には、基板FSの搬送方向を転換する案内ローラR22が設けられている。本実施の形態の場合、メッキ処理される基板FSの表面は、回転ドラムDRと接触している面の反対側となる。
TL=π・φ・(θL/360°)/Vf
このことから、回転ドラムDRの直径φが定まっている場合、メッキ時間TLの調整は搬送速度Vfを変えるのが効果的であるが、接液角度θL、すなわち電解メッキ液LQ1の液量(界面位置Lxa、Lxbの高さ位置)を変えてもよい。
図18は、第7の実施の形態によるメッキ処理装置の概略的な構成を示し、上段はメッキ処理装置をXY面内で見た平面図であり、下段はメッキ処理装置をXZ面内で見た正面図である。本実施の形態は、先の図7、図8で説明した第2の実施の形態と同様に、基板FS上に形成された特定パターン部分と電気的に導通している導電パターンの一部を切断部50等で切断して、特定パターン部分へのメッキを防止するものである。そのため、図18に示すメッキ処理装置は、基本的には先の図8と同様に構成される。したがって、図18中の部材のうち図8中の部材と同じもの、同じ機能を奏する部材についての詳細説明は省略する。
Claims (18)
- 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に導電体で形成された導電パターンの一部に選択的にメッキを施すメッキ処理方法であって、
前記導電パターンのうち電解メッキを施す特定パターン部分に接続され、且つ、前記長尺方向に沿って延びる補助パターンを導電材料で前記シート基板上に形成することと、
前記シート基板の表面が前記長尺方向に沿って所定距離に亘って電解メッキ液と接触するように、前記シート基板を搬送することと、
前記シート基板上の少なくとも前記特定パターン部分が前記電解メッキ液と接触している間、前記シート基板の表面が前記電解メッキ液から離れた位置に設けられた電極部材を前記補助パターンと接触させ、前記電極部材を介して前記電解メッキ液に電圧を印加することと、
を含む、メッキ処理方法。 - 請求項1に記載のメッキ処理方法であって、
前記導電パターンおよび前記補助パターンは、表面に前記導電体による薄膜が積層された前記シート基板に対して、露光装置を用いたリソグラフィ工程と前記薄膜を部分的に除去するエッチング工程とを施すことによって形成される、メッキ処理方法。 - 請求項1に記載のメッキ処理方法であって、
前記導電パターンおよび前記補助パターンは、露光装置を用いた光パターニング工程と、前記導電体を無電解メッキで析出させる無電解メッキ工程とによって形成される、メッキ処理方法。 - 請求項2または3に記載のメッキ処理方法であって、
前記特定パターン部分は、前記導電パターンの中で孤立した孤立パターン部分として形成される、メッキ処理方法。 - 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に導電体で形成された導電パターンの一部に選択的にメッキを施すメッキ処理方法であって、
前記導電パターンのうち第1の特定パターン部分に接続され、且つ、前記長尺方向と交差する前記シート基板の幅方向の第1の特定位置に前記長尺方向に沿って延びる第1の補助パターンと、前記導電パターンのうち前記第1の特定パターン部分とは異なる第2の特定パターン部分に接続され、且つ、第1の特定位置とは異なる前記長尺方向と交差する前記シート基板の幅方向の第2の特定位置に前記長尺方向に沿って延びる第2の補助パターンとを、導電材料で前記シート基板上に形成することと、
前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第1の電解メッキ液に接触させることと、
前記シート基板の表面が前記第1の電解メッキ液に接触する手前またはその後の位置に設けられた第1の電極部材を前記第1の補助パターンに接触させ、前記第1の電極部材を介して前記第1の電解メッキ液に電圧を印加することと、
前記第1の電解メッキ液によって電解メッキが施された前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第2の電解メッキ液に接触させることと、
前記シート基板の表面が前記第1の電解メッキ液に接触した後の位置であって、前記第2の電解メッキ液に接触する手前またはその後の位置に設けられた第2の電極部材を前記第2の補助パターンに接触させ、前記第2の電極部材を介して前記第2の電解メッキ液に電圧を印加することと、
を含む、メッキ処理方法。 - 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に導電体で形成された導電パターンの一部に選択的にメッキを施すメッキ処理方法であって、
前記導電パターンのうち第1の特定パターン部分および前記第1の特定のパターン部分とは異なる第2の特定パターン部分の各々に接続され、且つ、前記長尺方向に沿って延びる補助パターンを導電材料で前記シート基板上に形成することと、
前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第1の電解メッキ液に接触させることと、
前記シート基板の表面が前記第1の電解メッキ液に接触する手前またはその後の位置に設けられた第1の電極部材を前記補助パターンに接触させ、前記第1の電極部材を介して前記第1の電解メッキ液に電圧を印加することと、
前記第1の電解メッキ液による電解メッキの後に、前記第1の特定パターン部分と前記補助パターンとの電気的な接続を切断することと、
前記第1の電解メッキ液によって電解メッキが施された前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第2の電解メッキ液に接触させることと、
前記シート基板の表面が前記第1の電解メッキ液に接触した後の位置であって、前記第2の電解メッキ液に接触する手前またはその後の位置に設けられた第2の電極部材を前記補助パターンに接触させ、前記第2の電極部材を介して前記第2の電解メッキ液に電圧を印加することと、
を含む、メッキ処理方法。 - 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に形成された導電体による導電パターンの一部に選択的にメッキを施すメッキ処理装置であって、
前記シート基板の表面を前記長尺方向に沿って所定距離に亘って電解メッキ液に接触させる接液部と、
前記シート基板の搬送方向に関して、前記接液部の上流側または下流側に設けられ、前記導電パターンのうち電解メッキを施す特定パターン部分に接続され、且つ、前記長尺方向と交差する前記シート基板の幅方向の特定位置に前記長尺方向に沿って延びるように前記シート基板上に形成された導電性の補助パターンと接触する電極部材と、
前記電極部材を介して前記電解メッキ液に電解メッキ用の電圧を印加する電源部と、
を備える、メッキ処理装置。 - 請求項7に記載のメッキ処理装置であって、
前記電極部材は、前記シート基板の表面を支持して前記長尺方向に回転可能なローラの外周のうち、前記補助パターンが形成された前記特定位置に対応した領域に設けられている、メッキ処理装置。 - 請求項7または8に記載のメッキ処理装置であって、
前記特定パターン部分は、前記導電パターンの中で孤立した孤立パターン部分として形成されている、メッキ処理装置。 - 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に形成された導電体による導電パターンの一部に選択的にメッキを施すメッキ処理装置であって、
前記シート基板上には、前記導電パターンのうち第1の特定パターン部分に接続され、且つ、前記長尺方向と交差する前記シート基板の幅方向の第1の特定位置に前記長尺方向に沿って延びるように配置された導電性の第1の補助パターンと、前記導電パターンのうち前記第1の特定パターン部分とは異なる第2の特定パターン部分に接続され、且つ、第1の特定位置とは異なる前記長尺方向と交差する前記シート基板の幅方向の第2の特定位置に前記長尺方向に沿って延びるように配置された導電性の第2の補助パターンが形成されており、
前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第1の電解メッキ液に接触させる第1の接液部と、
前記シート基板の搬送方向に関して、前記第1の接液部の上流側または下流側に設けられ、前記第1の補助パターンと接触して前記第1の電解メッキ液に電解メッキ用の電圧を印加するための第1の電極部材と、
前記第1の電解メッキ液によって電解メッキが施された前記シート基板の表面を前記長尺方向に沿って所定距離に亘って前記第1の電解メッキ液とは異なる第2の電解メッキ液に接触させる第2の接液部と、
前記シート基板の搬送方向に関して、前記第2の接液部の上流側または下流側に設けられ、前記第2の補助パターンと接触して前記第2の電解メッキ液に電解メッキ用の電圧を印加するための第2の電極部材と、
を備える、メッキ処理装置。 - 長尺のシート基板を長尺方向に搬送しつつ、前記シート基板の表面に形成された導電体による導電パターンの一部に選択的にメッキを施すメッキ処理装置であって、
前記シート基板上には、前記導電パターンのうち第1の特定パターン部分および前記第1の特定のパターン部分とは異なる第2の特定パターン部分の各々に接続され、且つ、前記長尺方向に沿って延びるように配置された導電性の補助パターンが形成されており、
前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第1の電解メッキ液に接触させる第1の接液部と、
前記シート基板の搬送方向に関して、前記第1の接液部の上流側または下流側に設けられ、前記補助パターンと接触して前記第1の電解メッキ液に電圧を印加するための第1の電極部材と、
前記第1の電解メッキ液による電解メッキの後に、前記第1の特定パターン部分と前記補助パターンとの電気的な接続を切断する切断部と、
前記第1の電解メッキ液によって電解メッキが施された前記シート基板の表面を前記長尺方向に沿って所定距離に亘って第2の電解メッキ液に接触させる第2の接液部と、
前記シート基板の搬送方向に関して、前記第2の接液部の上流側または下流側に設けられ、前記補助パターンと接触して前記第2の電解メッキ液に電圧を印加するための第2の電極部材と、
を備える、メッキ処理装置。 - 複数の電極を被検出体に接触させたときに前記電極間の電気的な変化に基づいて、前記被検出体に含まれる特定成分を検査するセンサー装置であって、
複数の電極を所定の間隔で担持する基板と、
前記複数の電極の各々の第1層は第1の導電材料による薄膜で構成され、
前記複数の電極のうち第1電極は、前記第1の導電材料とは異なる第2の導電材料が電解メッキで前記第1層の上に積層した薄膜で構成され、
前記複数の電極のうち第2電極は、前記第1の導電材料および前記第2の導電材料とは異なる第3の導電材料が電解メッキで前記第1層の上に積層した薄膜で構成される、センサー装置。 - 請求項12に記載のセンサー装置であって、
前記第1の導電材料は、非貴金属であり、
前記第2の導電材料および前記第3の導電材料は、互いに異なる貴金属である、センサー装置。 - 請求項12に記載のセンサー装置であって、
前記第1の導電材料は、非貴金属であり、
前記第2の導電材料と前記第3の導電材料のうちの一方を貴金属とする、センサー装置。 - 複数の電極を被検出体に接触させたときに前記電極間で生じる電気的な変化に基づいて、前記被検出体に含まれる特定成分を検査するセンサー装置であって、
複数の電極を所定の間隔で担持する基板と、
前記複数の電極の各々の第1層は第1の導電材料による薄膜で構成され、
前記複数の電極のうちの第1電極と第2電極は、前記第1の導電材料とは異なる第2の導電材料を電解メッキで前記第1層の上に薄膜として積層した第2層を有し、
前記第2電極は、さらに前記第1の導電材料および前記第2の導電材料とは異なる第3の導電材料を電解メッキで前記第2層の上に薄膜として積層した第3層を有する、センサー装置。 - 被検出体に接触する少なくとも一対の電極を備え、前記電極間の電気的な変化に基づいて、前記被検出体の物理的または化学的な特性を計測するセンサー装置であって、
可撓性を有する長尺のシート基板の長尺方向に沿った複数の位置の各々に形成された前記一対の電極を有する複数の電極部と、
前記電極部ごとに設けられ、前記電極部の前記一対の電極間の電気的な変化を検出する複数の検出回路部と、
前記検出回路部の各々に電源電圧を供給するために、前記シート基板上に前記長尺方向に沿って連続して形成される導電性の電源ライン部と、
前記検出回路部の各々で検出された検出信号を伝送するために、前記シート基板上に前記長尺方向に沿って連続して形成される導電性の信号伝送ライン部と、
を備え、
前記一対の電極は、前記電源ライン部用の配線パターン部と同じ第1の導電材料で構成される第1層を有し、前記一対の電極のうちの少なくとも一方の電極は、前記第1の導電材料と異なる第2の導電材料を前記第1層の上に電解メッキで積層した第2層を有する、センサー装置。 - 請求項16に記載のセンサー装置であって、
前記被検出体は圃場の土壌であって、前記検出回路部の各々は、前記土壌の酸性度、または水分量に対応した検出信号を出力する、センサー装置。 - 請求項17に記載のセンサー装置であって、
前記土壌の酸性度を計測するために、前記第2の導電材料を亜鉛とする、センサー装置。
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