WO2016114275A1 - 流体吐出装置、流体吐出方法、及び流体塗布装置 - Google Patents
流体吐出装置、流体吐出方法、及び流体塗布装置 Download PDFInfo
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- WO2016114275A1 WO2016114275A1 PCT/JP2016/050757 JP2016050757W WO2016114275A1 WO 2016114275 A1 WO2016114275 A1 WO 2016114275A1 JP 2016050757 W JP2016050757 W JP 2016050757W WO 2016114275 A1 WO2016114275 A1 WO 2016114275A1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/001—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work incorporating means for heating or cooling the liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/10—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed before the application
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0208—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles
- B05C5/0212—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles
- B05C5/0216—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work for applying liquid or other fluent material to separate articles only at particular parts of the articles by relative movement of article and outlet according to a predetermined path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/06—Solder feeding devices; Solder melting pans
- B23K3/0607—Solder feeding devices
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/11—Manufacturing methods
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies
- H01L24/741—Apparatus for manufacturing means for bonding, e.g. connectors
- H01L24/742—Apparatus for manufacturing bump connectors
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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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
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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
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
- H05K3/3457—Solder materials or compositions; Methods of application thereof
- H05K3/3478—Applying solder preforms; Transferring prefabricated solder patterns
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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
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/4007—Surface contacts, e.g. bumps
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
- B05C11/1002—Means for controlling supply, i.e. flow or pressure, of liquid or other fluent material to the applying apparatus, e.g. valves
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/11—Manufacturing methods
- H01L2224/11001—Involving a temporary auxiliary member not forming part of the manufacturing apparatus, e.g. removable or sacrificial coating, film or substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/11—Manufacturing methods
- H01L2224/113—Manufacturing methods by local deposition of the material of the bump connector
- H01L2224/1131—Manufacturing methods by local deposition of the material of the bump connector in liquid form
- H01L2224/11312—Continuous flow, e.g. using a microsyringe, a pump, a nozzle or extrusion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/10—Bump connectors; Manufacturing methods related thereto
- H01L2224/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L2224/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
- H01L2224/13001—Core members of the bump connector
- H01L2224/13099—Material
- H01L2224/131—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron [B], silicon [Si], germanium [Ge], arsenic [As], antimony [Sb], tellurium [Te] and polonium [Po], and alloys thereof
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/10—Bump connectors ; Manufacturing methods related thereto
- H01L24/12—Structure, shape, material or disposition of the bump connectors prior to the connecting process
- H01L24/13—Structure, shape, material or disposition of the bump connectors prior to the connecting process of an individual bump connector
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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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/046—Means for drawing solder, e.g. for removing excess solder from pads
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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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/07—Treatments involving liquids, e.g. plating, rinsing
- H05K2203/0736—Methods for applying liquids, e.g. spraying
- H05K2203/074—Features related to the fluid pressure
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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
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/12—Using specific substances
- H05K2203/128—Molten metals, e.g. casting thereof, or melting by heating and excluding molten solder
Definitions
- the present invention relates to an apparatus for discharging a fluid such as molten solder or adhesive onto a workpiece of an electronic component such as a substrate and a semiconductor.
- Solder and adhesive are used for mounting electronic parts such as semiconductors on printed circuit boards of electronic devices and for assembling electronic parts such as semiconductors.
- a pad made of a plating film is provided on the surface of the workpiece of the electronic component, and a solder bump (kump) is formed on the pad. Thereafter, soldering is performed via bumps.
- solder paste is often used as a solder bump forming method. After applying the solder paste on the plating film of the workpiece with a printing machine or a dispenser, the solder paste is melted by reflow heating to form bumps. This method is inexpensive. However, printing has a limit that can be printed, and bumps corresponding to fine circuit patterns cannot be formed.
- solder balls There is also a bump formation method using solder balls.
- a fine solder ball is mounted on the work of the electronic component, and bumps are formed by reflow heating. This method can form bumps corresponding to fine circuit patterns.
- the cost of the solder ball itself is high, the overall cost is high.
- a so-called molten solder method in which molten solder is discharged to form a solder bump has attracted attention.
- a solder application apparatus that efficiently supplies molten solder to a plurality of locations by scanning in a horizontal direction from a nozzle opening of a container that accommodates molten solder (Japanese Patent Application No. 2). -015698).
- a fluid discharge device such as a solder bump forming device using molten solder or an adhesive application device
- the amount of material discharged onto a workpiece such as a printed circuit board or a silicon wafer is controlled on a workpiece as in Patent Document 2.
- a mask is used.
- the mask for fluid ejection may be used by placing a hole in a plastic sheet such as polyimide film or a metal sheet or plate on the workpiece, or on a workpiece such as a printed circuit board or silicon wafer. You may form directly with a resist.
- the fluid discharge amount of the fluid discharge device becomes minute, there is a problem that even if the fluid is discharged, the mask is not filled with the fluid. In particular, when the thickness of the mask is increased and the height of the solder bumps to be formed is increased, this problem often occurs.
- One of the objects of the present invention is to realize a fluid coating apparatus capable of completely filling a mask for controlling the discharge amount even when a fluid having a fine pattern is applied.
- the dripping of the molten solder after the solder bump formation has been a problem. This is because when the head is lifted from the workpiece, excessive molten solder may inadvertently drop onto the workpiece or pull a thread, thereby forming an undesirable bridge.
- this method has a drawback in that it takes time. That is, it took time to lower the temperature of the molten solder, and it took time to raise the temperature of the molten solder for the next operation. Therefore, when cyclically carrying in the work of electronic parts, preheating the work, heating the molten solder in the head, forming solder bumps, cooling the molten solder in the head, and unloading the work, The time required for temperature control of the molten solder was the biggest bottleneck in efficiency.
- Another object of the present invention is to provide a quick means for solving the problem of dripping of molten solder.
- the inventors of the present invention reduce the opening of the mask placed on the workpiece, making it difficult to fill the discharge portion of the workpiece with fluid.
- the discharged fluid is filled into the workpiece by removing the air in the workpiece in advance. And the present invention was completed.
- the present invention is a fluid discharge device for applying a fluid to a mask on a workpiece of an electronic component, and has a head portion including a tank capable of storing fluid and a discharge head, and one end of the discharge head
- the suction port for sucking air in the mask on the workpiece and the discharge nozzle for discharging fluid are formed, and the suction port is installed in the traveling direction of the discharge head, At the time of fluid discharge preparation, the discharge head moves closer to the workpiece until it contacts the workpiece, and at the time of fluid discharge, the air in the mask is sucked from the suction port while the discharge head is in contact with the workpiece.
- a fluid discharge device that discharges fluid into a mask.
- the present invention also uses a fluid application device that applies fluid to a work by discharging fluid from a head having a suction port and a fluid discharge nozzle at the tip of the head.
- This is a fluid ejection method in which fluid is ejected after deaeration.
- a dispenser that is commonly used as a fluid discharge device is a dispenser that discharges fluid from a needle-like needle by applying pressure to the fluid.
- the discharge amount of the dispenser is determined by the diameter of the needle-like needle, and the discharge amount becomes finer as the needle diameter becomes smaller.
- the diameter of the fluid to be discharged becomes a minute amount smaller than 0.1 mm, as in the case of bump formation on a semiconductor silicon chip, it becomes impossible to discharge an accurate amount with a dispenser.
- a method is adopted in which a discharge portion of a work is divided into small portions with a mask and fluid is discharged onto the mask. Further, when the fluid is discharged without using a mask, the fluid spreads on a plane and comes into contact with the adjacent electrode portion.
- a fluid ejection device such as a solder bump forming device using the IMS method adjusts the pressure applied to the fluid to eject the head without cooling the head, thereby surplus fluid from the nozzle.
- the present invention has been completed by finding out that it is possible to prevent leakage of water, and that switching between pressurization and negative pressure is effective for this purpose.
- the present invention relates to a discharge head that moves away from a workpiece, a heater unit for maintaining the molten solder in the tank at a desired temperature, a first pressure in the tank, and the molten solder in the tank to the nozzle
- a first pressure supply means for injecting from the opening of the nozzle onto the work, a second pressure to be supplied into the tank, and the molten solder in the tank being held in the tank without being injected from the opening of the nozzle
- Fluid application comprising: a second pressure supply means; a pressure sensor for monitoring the pressure in the tank; and a control device for controlling the pressure to be supplied into the tank based on a signal from the pressure sensor. Device.
- ⁇ / RTI> By using the fluid discharge device of the present invention, stable discharge can be obtained even when discharging a fine diameter fluid that cannot be discharged by a dispenser. In particular, even when a mask that is thicker than the diameter to be discharged is used because the height of the solder is required, it is possible to discharge a fine discharge amount of fluid without filling problems. Therefore, the enormous correction that has occurred by applying fluid to a fine mask in a conventional workpiece is eliminated, and the productivity is dramatically improved.
- the position of the discharge head that accommodates the molten solder is sensed, and when the specified position is reached, the valves on the positive pressure side and the negative pressure side are opened and closed and supplied to the tank of the head.
- the pressure is changed to the positive pressure side and the negative pressure side. While the pressure in the tank is monitored by the pressure sensor, the pressure to be supplied into the tank is controlled based on the signal from the pressure sensor.
- the valve When the discharge head containing molten solder moves to the specified position, the valve is on the negative pressure side, upward pressure is applied to the tank, the discharge head reaches the specified position, and the solder bumps on the workpiece Is formed, the valve is switched to the positive pressure side and molten solder is injected from the nozzle opening by applying downward pressure.
- the valve When the head is separated from the work after the molten solder is discharged, the valve is switched to the negative pressure side again so that the molten solder is reliably retracted into the tank. Such state switching can be performed instantly and reliably by pressure control.
- the position of the solder is also controlled by controlling the pressure to be supplied into the tank of the head to inject molten solder from the nozzle or withdrawing it into the tank.
- pressure control is performed based on signals from two contact sensors. Accordingly, the speed of operation and the action on the fluid are much inferior to those of the present invention.
- FIG. 1 shows a head unit 1 according to the present invention.
- the head unit 1 includes a fluid tank 2 that can accommodate molten solder and a discharge head 3 provided at the lower end.
- a heating means such as a heater 4 can be attached to the abdomen of the fluid tank 2.
- the discharge head 3 has a fluid discharge nozzle 5 and a suction port 6 provided at the lower end of the head, and the suction port 6 is attached so that a suction process can be performed earlier in the traveling direction than the fluid discharge nozzle 5. Yes.
- a round shape, a slit shape, and other known shapes can be adopted.
- a slit shape is used as the shape of the nozzle opening, it is possible to simultaneously discharge fluid onto a plurality of workpieces.
- the shape of the suction port 6 attached to the ejection head 3 can also be a round shape, a slit shape, and other known shapes, but by using a narrow slit shape as the shape of the opening, the suction force The air in the mask 8 can be surely degassed.
- the width of the slit in the present invention is preferably 0.1 to 20 mm. .
- the fluid application device of the present invention can move in the vertical direction so as to approach and separate from the workpiece 7 of the electronic component to which the fluid is to be applied as a whole, and can also move in the horizontal direction It is.
- the ejection head 3 is lowered to a position where the fluid ejection nozzle 5 contacts the workpiece 7 during fluid ejection. While the contact state between the fluid discharge nozzle 5 and the work 7 is maintained, the liquid discharge head 3 moves horizontally. During the horizontal movement of the liquid discharge head 3, the fluid is discharged from the opening of the fluid discharge nozzle 5, and the fluid is applied onto the work 7. When the application of the fluid is finished, the liquid discharge head 3 is lifted away from the workpiece 7.
- the fluid discharge device 1 includes a heater 4 for keeping the fluid in the tank 2 at a desired temperature.
- the heater 4 may be built in the wall portion of the tank 2.
- the heater 4 is managed and controlled so that the heater 4 is heated to an appropriate temperature to maintain the optimum viscosity for the application condition of the fluid 9 such as molten solder in the tank 2.
- a heater 4 may be attached to the portion of the ejection head 3 of the present invention. By attaching a heater to the discharge head, the fluidity of the fluid is improved and clogging of the fluid is prevented, and the air in the mask to be sucked is heated to facilitate deaeration.
- the fluid discharge device 1 is connected to the pressure supply means 11 capable of fluid communication from the tank 2 through the extension pipe 10, and the decompression supply means 13 capable of fluid communication via the suction pipe extension pipe 12 continuing from the suction port 6. linked.
- the pressure supply means 11 includes a pressure generation source 14 that generates nitrogen gas having a pressure of, for example, 0.06 to 0.1 MPa (not limited to this).
- the pressure generation source 14 supplies pressure into the tank 2 through the gate valve 15 and the three-way valve 23.
- the molten solder held in the tank 2 receives a positive pressure from the pressure generation source 14 and is injected from the opening of the fluid discharge nozzle 5.
- the decompression supply means 13 has a micro ejector 16 which is a vacuum generator.
- the vacuum generator 16 is connected to a pressure generation source 19 that generates nitrogen gas having a pressure of 0.4 MPa (not limited to this) via, for example, a regulator 17 and a throttle valve 18, and is connected via a suction pipe extension pipe 12. Then, negative pressure is supplied to the suction port 6.
- the fluid ejection device has a pressure sensor 20 and a control device 21.
- the pressure sensor 20 is connected to a three-way valve 23 provided in the extension pipe 10 that is in fluid communication with the inside of the tank 2, and monitors the pressure in the tank 2.
- a signal indicating the pressure in the tank 2 is sent from the pressure sensor 20 to the control device 21.
- the control device 21 supplies the pressure into the tank 2 by operating the pressure generation source 14, the vacuum generation device 16, the regulator 17, the pressure generation source 19 and each valve in accordance with the progress of the work process.
- An appropriate pressure value to be supplied is determined based on a signal from the pressure sensor 20.
- the tank 2 and the pressure sensor 20 are operated so as to communicate with each other.
- the magnitude of the positive pressure supplied into the tank 2 can be changed, for example, by adjusting the pressure value generated by the pressure generation source 14 by the control device 21.
- the control device 21 may adjust the pressure value by adjusting a regulating valve (not shown) provided in the pressure supply means 11.
- An appropriate pressure value to be supplied into the tank 2 in order to inject a fluid such as molten solder from the opening of the fluid discharge nozzle 5 or hold it in the tank 2 is the molten solder contained in the tank 2. It depends on the amount (weight). Therefore, the control device 21 may receive data related to the amount of fluid in the tank 2. In this case, the control device 21 can calculate a pressure value in the tank appropriate for the injection of the fluid or the retention in the tank from the data of the fluid amount in the tank 2. Further, the control device 21 compares the appropriate tank internal pressure value with the actual tank internal pressure value indicated by the signal from the pressure sensor 20 so that the appropriate tank internal pressure can be obtained. The valve can be adjusted.
- the fluid supply device 22 may be connected to the tank 2 in order to minimize the fluctuation of the appropriate tank pressure value due to the fluctuation of the fluid amount in the tank 2 as much as possible.
- the fluid supply device 22 can automatically supply additional fluid so that the amount of fluid in the tank 2 is always substantially constant when the molten solder in the tank 2 is consumed during operation of the fluid discharge device.
- control The device 21 can control the pressure to be supplied into the tank 2 based only on the signal from the pressure sensor 20.
- the ejection head 3 of the present invention is fixed at a fixed position away from the work 7, but when ejecting fluid, the ejection head 3 also moves in the vertical and horizontal directions, and the ejection head 3 is a mask on the work 7. It descends to a position where it touches the 8 discharge portion.
- the ejection head 3 that is always ejecting the fluid 9 moves horizontally first from the side where the suction nozzle 6 is installed, and the air in the opening of the mask 8 on the work 7 is decompressed before the ejection.
- the discharge head 3 moves so that the fluid is discharged from the nozzle 5.
- the pressure supplied from the pressure generation source 14 supplies the pressure into the tank 2 through the gate valve 15.
- the fluid 9 held in the tank 2 receives pressure from the pressure generation source 14 and is ejected from the opening of the discharge nozzle 5.
- the ejection head 3 traces over the mask 8 of the work 7 and moves horizontally to complete the application of a predetermined range of fluid.
- the fluid application apparatus includes an ejection head 101.
- the discharge head 101 includes a tank 102 that can store a fluid (for example, molten solder, not limited to this example), and a nozzle 103 provided at the lower end.
- An opening for ejecting the fluid inside the tank 102 is formed on the lower surface of the nozzle 103.
- a slit and other known ones can be employed.
- the ejection head 101 can move in the vertical direction so as to approach and move away from the workpiece 104 of the electronic component on which the application body (for example, solder bump) is to be formed, and can also move in the horizontal direction. It is.
- the ejection head 101 is lowered to a position where the nozzle 103 contacts the work 104 when the application body is formed.
- the ejection head 101 moves horizontally while the contact state between the nozzle 103 and the workpiece 104 is maintained.
- fluid is ejected from the opening of the nozzle 103, and an application body is formed on the workpiece 104.
- the ejection head 101 is lifted away from the workpiece 104.
- the fluid application device includes a heater unit (not shown) for keeping the fluid in the tank 102 at a desired temperature.
- the heater unit can be built in the wall of the discharge head. The heater unit is managed and controlled so that the fluid in the tank 102 is heated to an appropriate temperature to maintain the optimum viscosity for bump formation.
- the fluid application device includes a first pressure supply means 105 and a second pressure supply means 106 capable of fluid communication with the inside of the tank 102 of the discharge head 101.
- the first pressure supply means 105 includes a pressure generation source (positive pressure supply source) 107 that generates nitrogen gas having a pressure of, for example, 0.06 to 0.1 MPa (not limited to this).
- the positive pressure supply source 107 supplies positive pressure into the tank 102 via the gate valve 108 and the three-way valve 109.
- the fluid held in the tank 102 receives positive pressure from the positive pressure supply source 107 and is ejected from the opening of the nozzle 103.
- the second pressure supply means 106 has a micro ejector (negative pressure supply source) 110 which is a vacuum generator.
- the negative pressure supply source 110 is connected to a pressure generation source 113 that generates nitrogen gas having a pressure of, for example, 0.4 MPa (not limited to this) via a regulator 111 and a throttle valve 112.
- the negative pressure is supplied into the tank 102 via
- the fluid that was about to be ejected from the opening of the nozzle 103 receives a negative pressure from the negative pressure supply source 110 and is held in the tank 102 or the nozzle 103.
- the fluid application device includes a pressure sensor 115 and a control device 116.
- the pressure sensor 115 is connected to a three-way valve 118 provided in an extension pipe 117 that is in fluid communication with the inside of the tank 102, and monitors the pressure in the tank 102.
- a signal indicating the pressure in the tank 102 is sent from the pressure sensor 115 to the control device 116.
- the control device 116 senses the position of the discharge head that accommodates the molten solder in accordance with the progress of the work process, and when the specified position is reached, opens the path 105 side with the valve 109 to provide the positive pressure supply source 107.
- the negative pressure supply source 110, the regulator 111, the pressure generation source 113 and each valve are operated to supply pressure into the tank 102.
- An appropriate pressure value to be supplied is determined based on a signal from the pressure sensor 115.
- the valve 109 When the fluid in the tank 102 is ejected from the opening of the nozzle 103, the valve 109 is operated so as to allow only fluid communication between the first pressure supply means 105 and the common conduit 114.
- the gate valve 108 is opened, and the gate valve 119 provided in the extension pipe 117 is closed.
- the three-way valve 118 is operated so that the inside of the tank 102 and the pressure sensor 115 are in fluid communication.
- the magnitude of the positive pressure supplied into the tank 102 can be changed, for example, by adjusting the pressure value generated by the positive pressure supply source 107 by the control device 116.
- the control device 116 may adjust the pressure value by adjusting a regulating valve (not shown) provided in the first pressure supply means 105.
- the fluid is not ejected from the opening of the nozzle 103 and moved into the tank 102 or the nozzle 103 when the ejection head is moved to a specified position or when the ejection of the fluid is finished and the ejection head is moved from the mask.
- the valve 109 is operated to allow only fluid communication between the second pressure supply means 106 and the common conduit 114.
- the negative pressure supply source 110 receives pressure from the pressure generation source 113 via the regulator 111 and the throttle valve 112 and generates negative pressure.
- the magnitude of the negative pressure supplied into the tank 102 can be changed by the controller 116 adjusting the regulator 111 or the throttle valve 112, for example.
- the appropriate pressure value to be supplied into the tank 102 in order to eject the fluid from the opening of the nozzle 103 or hold it in the tank 102 is also dependent on the amount (weight) of the fluid contained in the tank 102. It depends. Therefore, the control device 116 may receive data related to the amount of fluid in the tank 102. In this case, the controller 116 can calculate a pressure value in the tank appropriate for the injection of the fluid or the retention in the tank from the data of the fluid amount in the tank 102. Further, the control device 116 compares the appropriate tank internal pressure value with the actual tank internal pressure value indicated by the signal from the pressure sensor 115 so as to obtain an appropriate tank internal pressure, Each valve can be adjusted.
- a solder supply device may be connected to the tank 102.
- the solder supply device 120 can automatically supply additional solder so that the amount of fluid in the tank 102 is always substantially constant.
- Any known technique can be used to know the amount of fluid in the tank 102.
- the controller 116 Can control the pressure to be supplied into the tank 102 based only on the signal from the pressure sensor 115.
- the discharge head 101 of the present invention is fixed at a fixed position away from the workpiece 104.
- the path on the second pressure supply means 106 side is opened by the valve 109.
- the ejection head 101 moves also in the vertical direction and the horizontal direction, and the ejection head 101 is lowered to a position where it comes into contact with the ejection portion of the mask on the workpiece 104.
- the valve 109 is switched, and the path on the first pressure supply means 105 side is switched. Opened.
- the discharge head 101 which is always discharging fluid moves horizontally from the side where the suction nozzle is installed, and the air in the opening of the mask on the work 104 is depressurized.
- the ejection head 101 moves so as to eject the fluid.
- the pressure supplied from the pressure generation source 107 supplies the pressure into the tank 102 via the gate valve 108.
- the fluid held in the tank 102 receives pressure from the pressure generation source 107 and is ejected from the opening of the discharge nozzle 103.
- the ejection head 101 traces over the mask of the workpiece 104 and moves horizontally to complete the application of a predetermined range of fluid.
- valve 109 When the ejection head 101 moves on the mask and reaches a specified position, the valve 109 is switched to the path on the second pressure supply means 106 side, and the pressure applied to the ejection head 103 is switched to a negative pressure. There is no solder leakage because the solder is pulled up.
- FIG. 4 shows another embodiment of the fluid application apparatus according to the present invention. 3 differs from the embodiment of FIG. 3 in that the nozzle 103 of the injection 101 is positioned above the workpiece 104 in FIG. 3 whereas the nozzle 103 is positioned below the workpiece 104 in FIG. It is that you are. Further, the overall shape of the ejection head 101 is “I” type in FIG. 3, whereas the shape of the “U” type communication pipe is in FIG. 4.
- the first feature of the embodiment shown in FIG. 4 is that the nozzle 103 is disposed below the workpiece 104, so that there is no problem with the fluid dripping from the nozzle 103 onto the workpiece 104.
- the second feature is that when the fluid 121 is to be retracted into the tank 102, the self-weight of the fluid 121 can be used, so that a negative pressure supply source is not necessary.
- the embodiment of FIG. 3 has a first pressure supply means 105 having a positive pressure supply source 107 and a negative pressure supply source 110.
- the second pressure supply means 106 is required, the first pressure supply means 105 and the second pressure supply means 106 may have a common positive pressure supply source 122 in the embodiment of FIG. In other words, in the embodiment of FIG. 4, there may be a single pressure supply means having one positive pressure supply source 122.
- FIG. 4 shows a state where the fluid level 123 of the fluid in the nozzle 103 in the tank 102 in the atmospheric pressure state is located slightly below the upper end of the nozzle 103.
- the gate valve 108 is opened, and an appropriate value of pressure is supplied into the tank 102 by the positive pressure supply source 122.
- the fluid 121 is ejected from the opening of the nozzle 103, and an application body is formed on the workpiece 104.
- the gate valve 108 is closed, the gate valve 119 is opened, the tank 102 returns to atmospheric pressure, and the fluid 121 is retracted into the tank 102 by its own weight.
- the solder supply device 120 is used so that the amount of the fluid 121 in the tank 102 is always substantially constant, and the liquid level 123 of the fluid in the head 103 is always constant when the inside of the tank 102 is at atmospheric pressure. Thus, the consumed amount of solder may be automatically supplied into the tank 102.
- control of the pressure to be supplied into the tank 102 is performed by the control device 116 based on a signal from the pressure sensor 115. All data necessary for controlling the supply pressure into the tank 102, such as the amount of fluid in the tank 102, is input to the control device 116.
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Abstract
Description
流体吐出準備時には、前記吐出ヘッドが前記ワークに接触するまで該ワークに対して接近移動し、流体吐出時には、前記吐出ヘッドが前記ワークに接触した状態で吸引口よりマスク中の空気を吸引した後、マスク中に流体を吐出することを特徴とする流体吐出装置である。
まず、流体塗布装置のヘッド部1の構成を説明する。図1が本発明によるヘッド部1を示す図である。ヘッド部1は、溶融はんだ等を収容可能な流体タンク2と下端に設けた吐出ヘッド3を備える。溶融はんだなど温度コントロールが必要な流体に用いるときは、流体タンク2の腹部にヒーター4を巻き付けるなど、加熱手段を取り付けることもできる。吐出ヘッド3には、ヘッド下端に設けた流体吐出ノズル5と吸引口6を有し、吸引口6は流体吐出ノズル5よりも進行方向に向かって先に吸引工程が実施できるように取り付けられている。
図3に示すように、本発明による流体塗布装置は、吐出ヘッド101を備える。吐出ヘッド101は、流体(例えば溶融はんだ、この例に限定されない)を収容可能なタンク102と、下端に設けたノズル103とを有する。ノズル103の下面には、タンク102の内部の流体を射出するための開口が形成されている。ノズル開口の形状としては、スリットおよびその他の公知のものを採用することができる。
2 タンク
3 吐出ヘッド
4 ヒーター
5 吐出ノズル
6 吸引口
7 ワーク
8 マスク
9 流体
10 延長管路
11 圧力供給手段
12 吸引管延長管路
13 減圧供給手段
14 圧力発生源
15 ゲート弁
16 真空発生装置
17 レギュレータ
18 絞り弁
19 圧力発生源
20 圧力センサ
21 制御装置
22 流体供給装置
101 吐出ヘッド
102 タンク
103 ノズル
104 ワーク
105 第1の圧力供給手段
106 第2の圧力供給手段
107 圧力発生源(正圧供給源)
108 ゲート弁
109 バルブ
110 マイクロエジェクタ(負圧供給源)
111 レギュレータ
112 絞り弁
113 圧力発生源
114 共通管路
115 圧力センサ
116 制御装置
117 延長管路
118 3方弁
119 ゲート弁
120 はんだ供給装置
121 流体
122 正圧供給源
123 流体の液面。
Claims (13)
- 電子部品のワーク上のマスク中に流体を塗布するための流体吐出装置であって、
流体を収容可能なタンクと吐出ヘッドからなるヘッド部を有し、前記吐出ヘッドの一端には、ワーク上のマスク中の空気を吸引するための吸引口と流体を吐出するための吐出ノズルが形成されており、かつ吸引口は、吐出ヘッドの進行方向に設置されており、
流体吐出準備時には、前記吐出ヘッドが前記ワークに接触するまで該ワークに対して接近移動し、流体吐出時には、前記吐出ヘッドが前記ワークに接触した状態で吸引口よりマスク中の空気を吸引した後、マスク中に流体を吐出することを特徴とする流体吐出装置。 - 請求項1に記載の流体吐出装置において、前記吐出ヘッドには、吐出ノズルおよび吸引口の形状としてスリット状の開口部を有することを特徴とする流体吐出装置。
- 請求項1に記載の流体吐出装置において、
前記吐出ヘッドの上部には、圧力供給手段と接続する延長管路および減圧供給手段と接続する吸引延長管路が設置されており、それぞれが圧力発生源および真空発生装置に接続されている事を特徴とする流体吐出装置。 - 請求項1に記載の流体吐出装置において、
該流体吐出装置の稼働中に前記タンク内に追加の流体を供給するための流体供給装置を備える事を特徴とする流体吐出装置。 - 請求項1に記載の流体吐出装置を用い、ヘッドの先端には吸引口と流体吐出ノズルを有しているヘッドから流体を吐出させてワークに流体を塗布する流体塗布装置を用いて、まずワーク中の吐出部分の空気を脱気した後で流体を吐出する、流体の吐出方法。
- 電子部品のワーク上に塗布体を形成するための流体塗布装置であって、
流体を収容可能なタンクと、一端に設けたノズルとを備える吐出ヘッドにして、ワークの上方に位置づけられるように構成されており、
塗布体形成準備時には、前記ノズルが前記ワークに接触するまで該ワークに対して接近移動し、塗布体形成時には、前記ノズルが前記ワークに接触した状態で前記タンク内の流体を前記ノズルから射出させながら該ワークに対して水平移動し、塗布体の形成が終了して前記ノズルからの流体の射出が停止せしめられた後は、前記ワークに対して離反移動する吐出ヘッドと、
前記タンク内の流体を所望の温度に保つためのヒータユニットと、
前記タンク内に第1の圧力を供給し、該タンク内の流体を前記ノズルの開口から前記ワーク上へと射出させるための第1の圧力供給手段と、
前記タンク内に第2の圧力を供給し、該タンク内の流体を前記ノズルの前記開口から射出させずに前記タンク内に保持するための第2の圧力供給手段と、
前記タンク内の圧力を監視するための圧力センサと、
前記圧力センサからの信号に基づき、前記タンク内に供給されるべき圧力を制御するための制御装置と、
を備える流体塗布装置。 - 請求項6に記載の流体塗布装置において、
前記吐出ヘッドは、前記ノズルが前記ワークの上方に位置づけられるように構成されており、
前記第1の圧力が正圧であり、前記第2の圧力が負圧であり、前記第1の圧力供給手段が正圧供給源を有し、前記第2の圧力供給手段が負圧供給源を有している、流体塗布装置。 - 請求項7に記載の流体塗布装置において、
前記制御装置が、前記タンク内の流体の量に関するデータを入力されるようになされている、流体塗布装置。 - 請求項8に記載の流体塗布装置において、
該流体塗布装置の稼働中に前記タンク内に追加のはんだを供給するためのはんだ供給装置をさらに備える、流体塗布装置。 - 請求項6に記載の流体塗布装置において、
前記吐出ヘッドは、前記ノズルが前記ワークの下方に位置づけられるように構成されており、
前記第1の圧力が正圧であり、前記第2の圧力が大気圧または正圧であり、前記第1の圧力供給手段および前記第2の圧力供給手段が共通の正圧供給源を有している、流体塗布装置。 - 請求項10に記載の流体塗布装置において、
前記制御装置が、前記タンク内の流体の量に関するデータを入力されるようになされている、流体塗布装置。 - 請求項11に記載の流体塗布装置において、
該流体塗布装置の稼働中に前記タンク内に追加のはんだを供給するためのはんだ供給装置をさらに備える、流体塗布装置。 - 請求項6に記載の流体塗布装置において、
前記制御装置は、前記吐出ヘッドの位置を感知し、前記吐出ヘッドが前記ワークに対して下降して規定の位置に達したときに、前記吐出ヘッドの前記タンク内に前記第1の圧力を供給するように前記第1圧力供給手段を制御するように構成される、流体塗布装置。
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US15/543,155 US10632492B2 (en) | 2015-01-13 | 2016-01-13 | Fluid discharge device, fluid discharge method, and fluid application device |
CN201680005780.6A CN107427857B (zh) | 2015-01-13 | 2016-01-13 | 流体排出装置、流体排出方法及流体涂覆装置 |
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JP2016569369A JP6205678B2 (ja) | 2015-01-13 | 2016-01-13 | 流体吐出装置、流体吐出方法、及び流体塗布装置 |
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US10932372B2 (en) | 2015-12-15 | 2021-02-23 | Senju Metal Industry Co., Ltd. | Fluid discharge device |
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JP7455145B2 (ja) | 2019-05-13 | 2024-03-25 | インターナショナル・ビジネス・マシーンズ・コーポレーション | 材料射出のための材料の滴下の防止 |
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EP4234103A3 (en) | 2023-09-13 |
EP4234103A2 (en) | 2023-08-30 |
CN107427857B (zh) | 2022-01-07 |
KR20170121172A (ko) | 2017-11-01 |
EP3246097A4 (en) | 2018-07-18 |
JPWO2016114275A1 (ja) | 2017-11-24 |
US10632492B2 (en) | 2020-04-28 |
CA2976887A1 (en) | 2016-07-21 |
TWI626998B (zh) | 2018-06-21 |
US20180021803A1 (en) | 2018-01-25 |
CN107427857A (zh) | 2017-12-01 |
CA2976887C (en) | 2019-01-29 |
TW201637724A (zh) | 2016-11-01 |
EP3246097A1 (en) | 2017-11-22 |
KR101822985B1 (ko) | 2018-01-29 |
EP3246097B1 (en) | 2023-03-15 |
JP6205678B2 (ja) | 2017-10-11 |
MY170561A (en) | 2019-08-19 |
HUE061950T2 (hu) | 2023-09-28 |
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