WO2013153616A1 - ボール搭載方法、および、対基板作業機 - Google Patents
ボール搭載方法、および、対基板作業機 Download PDFInfo
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- WO2013153616A1 WO2013153616A1 PCT/JP2012/059769 JP2012059769W WO2013153616A1 WO 2013153616 A1 WO2013153616 A1 WO 2013153616A1 JP 2012059769 W JP2012059769 W JP 2012059769W WO 2013153616 A1 WO2013153616 A1 WO 2013153616A1
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- Prior art keywords
- viscous fluid
- tray
- ball
- circuit board
- transfer
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 35
- 239000012530 fluid Substances 0.000 claims abstract description 164
- 239000000758 substrate Substances 0.000 claims abstract description 41
- 238000007654 immersion Methods 0.000 claims description 15
- 238000007598 dipping method Methods 0.000 claims description 12
- 239000010408 film Substances 0.000 claims description 10
- 239000010409 thin film Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 114
- 229910000679 solder Inorganic materials 0.000 description 57
- 230000008569 process Effects 0.000 description 13
- 238000003384 imaging method Methods 0.000 description 9
- 230000032258 transport Effects 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 4
- 230000003028 elevating effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
Images
Classifications
-
- 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
- H05K3/3485—Applying solder paste, slurry or powder
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/0008—Soldering, e.g. brazing, or unsoldering specially adapted for particular articles or work
- B23K1/0016—Brazing of electronic components
-
- 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
- B23K1/00—Soldering, e.g. brazing, or unsoldering
- B23K1/20—Preliminary treatment of work or areas to be soldered, e.g. in respect of a galvanic coating
-
- 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
- B23K3/0623—Solder feeding devices for shaped solder piece feeding, e.g. preforms, bumps, balls, pellets, droplets
-
- 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
- B23K3/0638—Solder feeding devices for viscous material feeding, e.g. solder paste feeding
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
-
- 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
- H01L2224/74—Apparatus for manufacturing arrangements for connecting or disconnecting semiconductor or solid-state bodies and for methods related thereto
- H01L2224/79—Apparatus for Tape Automated Bonding [TAB]
- H01L2224/7901—Means for cleaning, e.g. brushes, for hydro blasting, for ultrasonic cleaning, for dry ice blasting, using gas-flow, by etching, by applying flux or plasma
-
- 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
- H01L2224/80—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected
- H01L2224/81—Methods for connecting semiconductor or other solid state bodies using means for bonding being attached to, or being formed on, the surface to be connected using a bump connector
- H01L2224/81009—Pre-treatment of the bump connector or the bonding area
- H01L2224/8101—Cleaning the bump connector, e.g. oxide removal step, desmearing
- H01L2224/81011—Chemical cleaning, e.g. etching, flux
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- 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
- H05K2203/041—Solder preforms in the shape of solder balls
-
- 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
- H05K2203/0425—Solder powder or solder coated metal powder
-
- 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
- H05K3/3489—Composition of fluxes; Methods of application thereof; Other methods of activating the contact surfaces
Definitions
- the present invention relates to a ball mounting method for mounting a conductive ball on a circuit board, and an on-board working machine for performing an operation for mounting the conductive ball on the circuit board.
- a viscous fluid is used, and the conductive ball is fixed on the circuit board by the viscous fluid.
- the viscous fluid is transferred onto the circuit board by a transfer pin for transferring the viscous fluid attached to the tip to the circuit board, and the transferred fluid is transferred to the circuit board.
- the conductive ball When the conductive ball is fixed on the circuit board using the viscous fluid, if the holding force of the conductive ball by the viscous fluid is small, the conductive ball may not be properly mounted on the circuit board. . In particular, tens of thousands to hundreds of thousands of conductive balls may be mounted on a circuit board. In such a case, the frequency of occurrence of problems such as non-mounting of conductive balls increases. For this reason, in the ball mounting method described in the above-mentioned patent document, a method of increasing the transfer amount of the viscous fluid by repeating the transfer of the viscous fluid onto the circuit board by the transfer pin at least twice or more is adopted. Yes.
- the viscous fluid transferred onto the circuit board by the first transfer by the transfer pin adheres to the tip of the transfer pin during the second transfer by the transfer pin. Thereby, the viscous fluid transferred onto the circuit board is removed by the transfer pin, and the amount of the viscous fluid on the circuit board may be reduced by the second transfer by the transfer pin.
- the transfer amount of the viscous fluid onto the circuit board may be increased rather than increased, and the conductive ball may be appropriately mounted on the circuit board. There is a possibility that you can not.
- the present invention has been made in view of such circumstances, and it is an object of the present invention to provide a ball mounting method capable of appropriately mounting a conductive ball on a circuit board, and a substrate working machine. To do.
- a ball mounting method is provided on a base and holds a circuit board at a position where work is performed on the circuit board, and holds a conductive ball.
- the viscous fluid is placed on the circuit board by the operation of mounting the conductive ball on the circuit board by the ball holder and the viscous fluid transfer tool having a transfer pin for transferring the viscous fluid attached to the tip to the circuit board.
- a ball mounting method for mounting a conductive ball on a circuit board, wherein the transfer pin of the viscous fluid transfer tool is connected to a viscous flow stored in the viscous fluid tray.
- a transfer pin immersing step for immersing in the fluid a viscous fluid transfer step for transferring the viscous fluid onto a circuit board by the transfer pin immersed in the viscous fluid, and a conductive ball held by the ball holder in the viscous fluid.
- the ball mounting method according to claim 2 is the ball mounting method according to claim 1, wherein the substrate working machine includes a first tray and a second tray as the viscous fluid tray.
- a viscous fluid having a viscosity higher than that of the viscous fluid stored in the second tray is stored, and the transfer pin dipping step converts the transfer pin into a viscous fluid stored in the first tray.
- the conductive ball held by the ball holder is dipped in a viscous fluid stored in the second tray.
- the ball mounting method according to claim 3 is the ball mounting method according to claim 1, wherein the substrate working machine has a first tray that stores viscous fluid in a thin film shape as the viscous fluid tray, and a first tray.
- the viscous fluid stored in the first tray is thicker than the viscous fluid stored in the second tray, and the transfer pin dipping step includes the transfer pin In the viscous fluid stored in the first tray, and the ball immersing step immerses the conductive ball held by the ball holder in the viscous fluid stored in the second tray.
- an anti-substrate work machine comprising: a holding device that is provided on a base and holds a circuit board at a position where work is performed on the circuit board; and a ball holder that holds a conductive ball.
- a work device that is selectively executed, a moving device that moves the working device to an arbitrary position on the base, a viscous fluid tray that stores viscous fluid, and an operation of the working device and the moving device are controlled.
- a transfer pin immersing section for immersing the transfer pin of the viscous fluid transfer tool in the viscous fluid stored in the viscous fluid tray, and a viscous flow The transfer pin immersed in a viscous fluid transfer section for transferring the viscous fluid onto the circuit board and the conductive ball held by the ball holder are immersed in the viscous fluid stored in the viscous fluid tray. It has a ball immersion part and a ball mounting part for mounting the conductive ball immersed in the viscous fluid on the circuit board onto which the viscous fluid has been transferred by the viscous fluid transfer part.
- the substrate work machine according to claim 5 is the substrate work machine according to claim 4, wherein the viscous fluid tray includes a first tray and a second tray, and the first tray includes: A viscous fluid having a viscosity higher than that of the viscous fluid stored in the second tray is stored, and the transfer pin immersion unit immerses the transfer pin in the viscous fluid stored in the first tray, and the ball The dipping unit immerses the conductive ball held by the ball holder in the viscous fluid stored in the second tray.
- the substrate working machine according to claim 6 is the substrate working machine according to claim 4, wherein the viscous fluid tray includes a first tray and a second tray that store the viscous fluid in a thin film shape.
- the film thickness of the viscous fluid stored in the first tray is thicker than the film thickness of the viscous fluid stored in the second tray, and the transfer pin dipping unit transfers the transfer pin to the first tray.
- the ball immersion unit immerses the conductive ball held by the ball holder in the viscous fluid stored in the second tray.
- the viscous fluid is transferred onto the circuit board by the transfer pin, and the viscous fluid is transferred onto the transferred viscous fluid.
- An immersed conductive ball is mounted.
- the conductive ball can be fixed on the circuit board by the viscous fluid transferred onto the circuit board by the transfer pin and the viscous fluid attached to the conductive ball by dipping the conductive ball in the viscous fluid. It becomes. Accordingly, the holding force of the conductive ball can be increased by a large amount of viscous fluid, and the conductive ball can be appropriately mounted on the circuit board.
- a viscous fluid having a relatively high viscosity is stored in the first tray in which the transfer pin is immersed.
- the viscous fluid having a high viscosity is transferred onto the circuit board, so that the conductive ball can be more suitably mounted on the circuit board by the high holding force by the viscous fluid having the high viscosity.
- the conductive ball held by the ball holder is immersed in a viscous fluid having a high viscosity
- the conductive ball is left in the second tray by a high holding force by the viscous fluid having a high viscosity. There is a fear.
- a viscous fluid having a relatively low viscosity is stored in the second tray in which the conductive balls held by the ball holder are immersed. As a result, it is possible to prevent the conductive balls held by the ball holder from being left in the second tray.
- the second tray on which the conductive balls held by the ball holder are immersed is relatively thin in viscosity. Fluid is stored. This is because only a very small conductive ball is immersed in the viscous fluid, and the amount of the viscous fluid adhering to the conductive ball is very small.
- a viscous fluid having a relatively thick film thickness is stored in the first tray in which the transfer pin is immersed. This is because the length of the transfer pin is much longer than the diameter of the conductive ball, and the amount of viscous fluid adhering to the transfer pin is relatively large.
- the conductive ball can be held on the circuit board by a large amount of viscous fluid, and the conductive ball can be appropriately mounted on the circuit board.
- FIG. 1 It is a perspective view which shows the board
- FIG. 1 shows an on-board work execution device (hereinafter sometimes abbreviated as “work device”) 10.
- the figure is a perspective view in which a part of the exterior part of the working device 10 has been removed.
- the work apparatus 10 includes one system base 12 and two on-board work execution machines (hereinafter, may be abbreviated as “work machines”) 16 arranged adjacent to each other on the system base 12.
- the circuit board is configured to perform work on the circuit board.
- the direction in which the work machines 16 are arranged is referred to as an X-axis direction
- a horizontal direction perpendicular to the direction is referred to as a Y-axis direction.
- Each of the work machines 16 included in the work apparatus 10 mainly includes a work machine body 24 configured to include a frame part 20 and a beam part 22 overlaid on the frame part 20, and a circuit board in the X-axis direction.
- a transport device 26 that transports and fixes the set position at a set position, a work head 28 that performs work on a circuit board fixed by the transport device 26, and a work head 28 that is disposed on the beam unit 22 and that is attached to the X-axis.
- Moving device 30 for moving in the direction and the Y-axis direction, solder ball supplying device 32 for supplying solder balls disposed in front of the frame portion 20, and flux supplying device 34 for supplying flux for transfer onto the circuit board And.
- the transport device 26 includes two conveyor devices 40 and 42, and the two conveyor devices 40 and 42 are parallel to each other and extend in the X-axis direction so that the central portion in the Y-axis direction of the frame portion 20. It is arranged.
- Each of the two conveyor devices 40, 42 conveys a circuit board supported by each conveyor device 40, 42 by an electromagnetic motor (see FIG. 4) 46 in the X-axis direction, and at a predetermined position, a substrate holding device ( The circuit board is fixedly held by 48) (see FIG. 4).
- the moving device 30 is an XY robot type moving device, and an electromagnetic motor (see FIG. 4) 52 that slides a slider 50 for holding the work head 28 in the X-axis direction and an electromagnetic motor (see FIG. 4) that slides in the Y-axis direction. 4) 54, and the operation of the two electromagnetic motors 52, 54 enables the work head 28 to be moved to an arbitrary position on the frame portion 20.
- the solder ball supply device 32 is a device for supplying the work balls 28 with the solder balls arranged in accordance with the mounting pattern of the solder balls on the circuit board.
- the solder ball supply device 32 is configured similarly to the solder ball supply device described in JP 2011-91192 A, and the configuration of the solder ball supply device 32 will be briefly described.
- the solder ball supply device 32 is disposed at a main body base 62 that is detachably attached to a device table 60 formed at the front end portion of the frame portion 20 and an end portion of the main body base 62 on the transport device 26 side. And a ball alignment plate 64. A predetermined number of ball holes (see FIG. 3) 66 are formed on the ball alignment plate 64.
- the predetermined number of ball holes 66 are arranged in accordance with the mounting pattern of the solder balls on the circuit board, and each ball hole 66 accommodates one solder ball. Then, by sliding a squeegee (not shown) in which a space for accommodating a plurality of solder balls is formed on the ball alignment plate 64, the solder balls are accommodated in the ball holes formed in the ball alignment plate 64. As a result, a predetermined number of solder balls are supplied in a state of being arranged in accordance with the mounting pattern of the solder balls on the circuit board.
- the flux supply device 34 includes two flux supply units 70, and each flux supply unit 70 includes a main body base 72 that is detachably attached to the device table 60, and the main body base 72. And a flux tray 74 disposed at the end on the conveying device 26 side.
- Each flux supply unit 70 is configured in the same manner as the flux supply unit described in Japanese Patent Application Laid-Open No. 2012-43904, and flux is stored in a thin film on the flux tray 74 of each flux supply unit 70.
- One flux tray of the two flux trays 74 (hereinafter sometimes referred to as “first flux tray 74a”) stores a relatively high-viscosity flux, and the other flux tray (hereinafter referred to as “second flux tray”).
- the flux tray 74b “may store a flux having a viscosity lower than that of the flux stored in the first flux tray 74a.
- the work head 28 performs various operations on the circuit board held by the transport device 26 and is moved to an arbitrary position on the frame unit 20 by the moving device 30 as shown in FIG.
- the slider 50 is detachable.
- the working head 28 includes a working tool holding unit 78 that holds a flux transfer tool 76 for transferring the flux onto the circuit board at the tip.
- the flux transfer tool 76 has a plurality of transfer pins 80 extending downward, and the flux is attached to the tips of the transfer pins 80, and the attached flux is transferred onto the circuit board. It is possible to do.
- the flux transfer tool 76 can be attached to and detached from the work tool holding unit 78, and a ball holder 82 shown in FIG. 3 can be attached to the tip of the work tool holding unit 78 instead of the flux transfer tool 76. It is possible.
- the ball holder 82 is structured to suck and hold the solder ball supplied by the solder ball supply device 32, and the solder ball is mounted on the circuit board by removing the sucked and held solder ball on the circuit board. It is possible to do work.
- the ball holder 82 includes a housing 86 in which an air chamber 84 is formed. A predetermined number of the ball holders 82 are arranged on the lower end surface of the housing 86 in the same arrangement pattern as the predetermined number of ball holes 66 of the ball alignment plate 64. The suction hole 88 is formed. The predetermined number of suction holes 88 communicate with the air chamber 84. Further, a positive / negative pressure supply device (see FIG. 4) 89 is connected to the air chamber 84, and by sucking air from each suction hole 88 of the ball holder 82, a solder ball is placed in each suction hole 88. It is possible to hold by adsorption.
- the work head 28 rotates the unit lifting device (see FIG. 4) 90 for lifting and lowering the work tool holding unit 78 that holds the flux transfer tool 76 or the ball holder 82 and the work tool holding unit 78 about its axis.
- a unit rotation device 92 (see FIG. 4) is provided.
- the work machine 16 includes a mark camera (see FIG. 4) 94 and a parts camera (see FIGS. 1 and 4) 96.
- the mark camera 94 is fixed to the lower surface of the slider 50 so as to face downward, and is moved by the moving device 30 so that the circuit board can be imaged at an arbitrary position.
- the parts camera 96 is provided on the frame unit 20 in a state of facing upward, and can image the flux transfer tool 76 or the ball holder 82 attached to the work head 28.
- the image data obtained by the mark camera 94 and the image data obtained by the parts camera 96 are processed in an image processing apparatus (see FIG. 4) 98, and various information acquired by processing the image data will be described in detail later. This is used for mounting solder balls to be mounted on a circuit board.
- the work machine 16 includes a control device 100 as shown in FIG.
- the control device 100 includes a controller 102 mainly composed of a computer having a CPU, a ROM, a RAM, the electromagnetic motors 46, 52, 54, a substrate holding device 48, a positive / negative pressure supply device 89, a unit lifting device 90, a unit rotation.
- a plurality of drive circuits 104 corresponding to each of the devices 92 are provided.
- the controller 102 is connected to a drive source such as a transfer device or a moving device via each drive circuit 104 so that the operation of the transfer device, the moving device or the like can be controlled.
- the work machine 16 can perform the work of mounting the solder balls on the circuit board by the above-described configuration.
- a solder ball mounting method for performing the work will be described in detail. Specifically, first, the conveyor boards 40 and 42 convey the circuit board to the working position, and the circuit board is fixedly held at the position. Next, the working head 28 is moved onto the circuit board by the moving device 30, and the circuit board is imaged by the mark camera 94. By this imaging, the circuit board holding position error by the conveyor devices 40 and 42 is acquired.
- the work head 28 After imaging by the mark camera 94, the work head 28 is moved onto the parts camera 96 by the moving device 30.
- a flux transfer tool 76 is attached to the work tool holding unit 78 of the work head 28, and the ball holder 82 is housed inside a work tool station 106 provided on the frame portion 20.
- the work tool mounted on the work tool holding unit 78 and the work tool stored in the work tool station 106 can be automatically exchanged.
- the work head 28 moved above the parts camera 96 is imaged from below by the parts camera 96, and information on the rotation angle of the flux transfer tool 76 is acquired by the imaging. Then, after the imaging by the parts camera 96, the work head 28 is moved onto the first flux tray 74a by the moving device 30.
- the work head 28 moved above the first flux tray 74a lowers the work tool holding unit 78 by the unit lifting device 90, and the transfer pin 80 of the flux transfer tool 76 is moved to the first position as shown in FIG. It is immersed in the flux stored in one flux tray 74a.
- the thickness L1 of the flux stored in the first flux tray 74a is set to a thickness that is shorter than the length of the transfer pin 80, and even if the transfer pin 80 contacts the bottom of the first flux tray 74a. Only the transfer pin 80 is immersed in the flux.
- the step of immersing the transfer pin 80 in the first flux tray 74a is a transfer pin immersing step, and the transfer pin immersing portion (see FIG. 4) 110 is controlled as a functional portion for executing this step. It is provided in the controller 102 of the apparatus 100.
- the work head 28 After completion of the transfer pin dipping process, the work head 28 is moved onto the circuit board by the moving device 30. Then, the working head 28 adjusts the rotation angle of the flux transfer tool 76 by the unit rotation device 92 based on the holding position error of the circuit board and the rotation angle of the flux transfer tool 76 obtained by imaging, and then The work tool holding unit 78 is lowered by the unit elevating device 90. Thereby, the tip of the transfer pin 80 of the flux transfer tool 76 is in contact with the surface of the circuit board, and the flux adhering to the tip of the transfer pin 80 is deposited on the circuit board 112 as shown in FIG. Transcribed. Note that the process of transferring the flux onto the circuit board 112 by the transfer pin 80 is a viscous fluid transfer process. As a functional unit for executing this process, the viscous fluid transfer unit (see FIG. 4) 114 is The controller 102 of the control device 100 is provided.
- the work head 28 After completion of the viscous fluid transfer process, the work head 28 is moved onto the work tool station 106 by the moving device 30. Then, the flux transfer tool 76 held by the work tool holding unit 78 is replaced with a ball holder 82 housed in the work tool station 106.
- exchange of a working tool is a well-known technique, description is abbreviate
- the work head 28 to which the ball holder 82 is attached is moved onto the parts camera 96 by the moving device 30.
- the work head 28 moved above the parts camera 96 is imaged from below by the parts camera 96, and information regarding the rotation angle of the ball holder 82 is acquired by the imaging.
- the work head 28 is moved onto the ball alignment plate 64 of the solder ball supply device 32 by the moving device 30.
- the work head 28 moved onto the ball alignment plate 64 adjusts the rotation angle of the ball holder 82 by the unit rotation device 92 based on the rotation angle of the ball holder 82 obtained by imaging, and thereafter
- the work tool holding unit 78 is lowered by the unit elevating device 90.
- negative pressure is supplied to the air chamber 84 of the ball holder 82 by the positive / negative pressure supply device 89, and air is sucked from each suction hole 88 of the ball holder 82.
- the solder balls are sucked and held in the suction holes 88 of the ball holder 82 as shown in FIG.
- the work head 28 that holds the solder balls by the ball holder 82 is moved onto the second flux tray 74b by the moving device 30.
- the work head 28 moved above the second flux tray 74b lowers the work tool holding unit 78 by the unit lifting device 90, and the solder balls sucked and held by the ball holder 82 are shown in FIG.
- it is immersed in the flux stored in the second flux tray 74b.
- the film thickness L2 of the flux stored in the second flux tray 74b is very thin. Even if the solder ball attracted and held by the ball holder 82 contacts the bottom of the second flux tray 74b, the solder ball Only is to be immersed in the flux.
- the film thickness L2 of the flux stored in the second flux tray 74b is considerably thinner than the film thickness L1 of the flux stored in the first flux tray 74a.
- the step of immersing the solder balls attracted and held by the ball holder 82 in the second flux tray 74b is a ball immersing step.
- a ball immersing portion (FIG. 4) is used. 116) is provided in the controller 102 of the control apparatus 100.
- the work head 28 After completion of the ball dipping process, the work head 28 is moved onto the circuit board by the moving device 30. At this time, the work head 28 is moved so that the solder ball can be mounted on the flux transferred onto the circuit board 112 in the viscous fluid transfer process, and the work head 28 is moved to the ball holder 82 obtained by imaging. Based on the rotation angle, the unit rotation device 92 adjusts the rotation angle of the ball holder 82. Then, the work tool holding unit 78 is lowered by the unit elevating device 90. As a result, the solder balls immersed in the flux are mounted on the flux transferred onto the circuit board 112 in the viscous fluid transfer step, as shown in FIG.
- the process of mounting the solder ball immersed in the flux on the flux transferred onto the circuit board 112 is a ball mounting process, and a ball mounting part ( 118) is provided in the controller 102 of the control device 100.
- the flux is transferred onto the circuit board 112 by the transfer pins 80, and the solder balls immersed in the flux on the transferred flux. Is installed.
- the solder balls can be held on the circuit board by a relatively large amount of flux. That is, the solder ball can be held on the circuit board with a relatively large holding force, and the solder ball can be appropriately mounted on the circuit board.
- the first flux tray 74a in which the transfer pin 80 is immersed stores a relatively high viscosity flux, and the high viscosity flux is transferred onto the circuit board.
- the solder ball held by the ball holder 82 is immersed in a flux having a high viscosity
- the solder ball may be left in the second flux tray 74b by a high holding force. Therefore, a flux having a relatively low viscosity is stored in the second flux tray 74b in which the solder balls held by the ball holder 82 are immersed. Accordingly, it is possible to prevent the solder balls held by the ball holder 82 from being left in the second flux tray 74b.
- a relatively thin flux L2 is stored in the second flux tray 74b in which the solder balls attracted and held by the ball holder 82 are immersed. This is because only very minute solder balls are immersed in the flux, and the amount of flux adhering to the solder balls is very small.
- a flux having a film thickness L1 that is considerably thicker than the film thickness L2 is stored in the first flux tray 74a in which the transfer pin 80 is immersed. This is because the length of the transfer pin 80 is very long compared to the diameter of the solder ball, and the amount of flux adhering to the transfer pin 80 is considerably larger than the amount of flux adhering to the solder ball. Become. As a result, the solder balls can be held on the circuit board by a large amount of flux, and the solder balls can be appropriately mounted on the circuit board.
- the substrate work execution machine 16 is an example of the substrate work execution machine, and the work head 28, the moving device 30, the substrate holding device 48, the flux tray 74, which constitute the substrate work execution machine 16.
- the control device 100 is an example of a work device, a moving device, a holding device, a viscous fluid tray, and a control device.
- the flux transfer tool 76 and the ball holder 82 attached to the work head 28 are examples of viscous fluid transfer tools and ball holders, and the transfer pin 80 of the flux transfer tool 76 is an example of a transfer pin.
- the first flux tray 74a and the second flux tray 74b constituting the flux tray 74 are examples of the first tray and the second tray.
- the transfer pin immersion unit 110, the viscous fluid transfer unit 114, the ball immersion unit 116, and the ball mounting unit 118 constituting the control device 100 are examples of the transfer pin immersion unit, the viscous fluid transfer unit, the ball immersion unit, and the ball mounting unit.
- the flux is an example of a viscous fluid
- the solder ball is an example of a conductive ball.
- this invention is not limited to the said Example, It is possible to implement in the various aspect which gave various change and improvement based on the knowledge of those skilled in the art.
- two trays of the first flux tray 74a and the second flux tray 74b are adopted as the viscous fluid tray, and the first flux tray 74a is used when the transfer pin 80 is immersed.
- the second flux tray 74b is used when the solder balls are immersed, but one tray may be shared when the transfer pins 80 are immersed and when the solder balls are immersed.
- the work head 28 capable of mounting one work tool is employed as the work device, but a work head capable of mounting a plurality of work tools can be employed.
- the work tool replacement work at the work tool station 106 can be omitted during the solder ball mounting work.
- one working head is adopted as the working device, but two working heads may be adopted. That is, a work head on which the flux transfer tool 76 is mounted and a work head on which the ball holder 82 is mounted are adopted, and the transfer pin dipping process and the viscous fluid transfer process are performed by the work head on which the flux transfer tool 76 is mounted. The ball dipping process and the ball mounting process may be performed by the work head on which the ball holder 82 is mounted.
- the two working heads may be moved by the moving device 30, the moving device 30 is provided in each of the two working heads, and the two moving devices 30 are used. The two working heads may be moved individually.
- Substrate work execution machine vs. board work machine
- Work head Work device
- Moving device 48: Substrate holding device (holding device)
- 80: transfer pin 82: ball holder 100: control device 110: transfer pin immersion part 114: viscous fluid transfer Part 116: Ball immersion part 118: Ball mounting part
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Abstract
Description
図1に、対基板作業実行装置(以下、「作業装置」と略す場合がある)10を示す。その図は、作業装置10の外装部品の一部を取り除いた斜視図である。作業装置10は、1つのシステムベース12と、そのシステムベース12の上に互いに隣接されて並んで配列された2つの対基板作業実行機(以下、「作業機」と略す場合がある)16とを含んで構成されており、回路基板に対する作業を実行するものとされている。なお、以下の説明において、作業機16の並ぶ方向をX軸方向とし、その方向に直角な水平の方向をY軸方向と称する。
作業機16では、上述した構成によって、回路基板に半田ボールを搭載する作業を行うことが可能とされている。以下に、その作業を行うための半田ボールの搭載方法について詳しく説明する。具体的には、まず、コンベア装置40,42によって、回路基板を作業位置まで搬送するとともに、その位置において回路基板を固定的に保持する。次に、移動装置30によって、作業ヘッド28を回路基板上に移動させ、マークカメラ94によって、回路基板を撮像する。その撮像によりコンベア装置40,42による回路基板の保持位置誤差が取得される。
Claims (6)
- ベース上に設けられ、回路基板に対する作業が行われる位置において回路基板を保持する保持装置と、
導電性ボールを保持するボール保持具によって、導電性ボールを回路基板上に装着する作業と、先端部に付着した粘性流体を回路基板に転写するための転写ピンを有する粘性流体転写具によって、粘性流体を回路基板上に転写する作業とを、選択的に実行する作業装置と、
その作業装置を前記ベース上の任意の位置に移動させる移動装置と、
粘性流体が貯留された粘性流体トレイと
を備えた対基板作業機において、導電性ボールを回路基板上に搭載するボール搭載方法であって、
前記粘性流体転写具の前記転写ピンを、前記粘性流体トレイに貯留されている粘性流体に浸漬する転写ピン浸漬工程と、
粘性流体に浸漬された前記転写ピンによって、回路基板上に粘性流体を転写する粘性流体転写工程と、
前記ボール保持具によって保持された導電性ボールを前記粘性流体トレイに貯留されている粘性流体に浸漬するボール浸漬工程と、
粘性流体に浸漬された導電性ボールを、前記粘性流体転写工程において粘性流体が転写された回路基板上に、装着するボール装着工程と
を含むことを特徴とするボール搭載方法。 - 前記対基板作業機が、
前記粘性流体トレイとして、第1トレイと第2トレイとを備え、前記第1トレイには、前記第2トレイに貯留された粘性流体より粘度の高い粘性流体が貯留されており、
前記転写ピン浸漬工程が、前記転写ピンを前記第1トレイに貯留されている粘性流体に浸漬し、
前記ボール浸漬工程が、前記ボール保持具によって保持された導電性ボールを前記第2トレイに貯留されている粘性流体に浸漬することを特徴とする請求項1に記載のボール搭載方法。 - 前記対基板作業機が、
前記粘性流体トレイとして、粘性流体を薄膜状に貯留する第1トレイと第2トレイとを備え、前記第1トレイに貯留された粘性流体の膜厚は、前記第2トレイに貯留された粘性流体の膜厚より厚くされており、
前記転写ピン浸漬工程が、前記転写ピンを前記第1トレイに貯留されている粘性流体に浸漬し、
前記ボール浸漬工程が、前記ボール保持具によって保持された導電性ボールを前記第2トレイに貯留されている粘性流体に浸漬することを特徴とする請求項1に記載のボール搭載方法。 - ベース上に設けられ、回路基板に対する作業が行われる位置において回路基板を保持する保持装置と、
導電性ボールを保持するボール保持具によって、導電性ボールを回路基板上に装着する作業と、先端部に付着した粘性流体を回路基板に転写するための転写ピンを有する粘性流体転写具によって、粘性流体を回路基板上に転写する作業とを、選択的に実行する作業装置と、
その作業装置を前記ベース上の任意の位置に移動させる移動装置と、
粘性流体が貯留された粘性流体トレイと、
前記作業装置と前記移動装置との作動を制御する制御装置と
を備え、
前記制御装置が、
前記粘性流体転写具の前記転写ピンを、前記粘性流体トレイに貯留されている粘性流体に浸漬する転写ピン浸漬部と、
粘性流体に浸漬された前記転写ピンによって、回路基板上に粘性流体を転写する粘性流体転写部と、
前記ボール保持具によって保持された導電性ボールを前記粘性流体トレイに貯留されている粘性流体に浸漬するボール浸漬部と、
粘性流体に浸漬された導電性ボールを、前記粘性流体転写部によって粘性流体が転写された回路基板上に、装着するボール装着部と
を有することを特徴とする対基板作業機。 - 前記対基板作業機が、
前記粘性流体トレイとして、第1トレイと第2トレイとを備え、前記第1トレイには、前記第2トレイに貯留された粘性流体より粘度の高い粘性流体が貯留されており、
前記転写ピン浸漬部が、前記転写ピンを前記第1トレイに貯留されている粘性流体に浸漬し、
前記ボール浸漬部が、前記ボール保持具によって保持された導電性ボールを前記第2トレイに貯留されている粘性流体に浸漬することを特徴とする請求項4に記載の対基板作業機。 - 前記対基板作業機が、
前記粘性流体トレイとして、粘性流体を薄膜状に貯留する第1トレイと第2トレイとを備え、前記第1トレイに貯留された粘性流体の膜厚は、前記第2トレイに貯留された粘性流体の膜厚より厚くされており、
前記転写ピン浸漬部が、前記転写ピンを前記第1トレイに貯留されている粘性流体に浸漬し、
前記ボール浸漬部が、前記ボール保持具によって保持された導電性ボールを前記第2トレイに貯留されている粘性流体に浸漬することを特徴とする請求項4に記載の対基板作業機。
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CN201280072182.2A CN104206033B (zh) | 2012-04-10 | 2012-04-10 | 球搭载方法及对基板作业机 |
PCT/JP2012/059769 WO2013153616A1 (ja) | 2012-04-10 | 2012-04-10 | ボール搭載方法、および、対基板作業機 |
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