WO2005101943A2 - Electronic component mounting apparatus and method of mounting electronic components - Google Patents
Electronic component mounting apparatus and method of mounting electronic components Download PDFInfo
- Publication number
- WO2005101943A2 WO2005101943A2 PCT/JP2005/007276 JP2005007276W WO2005101943A2 WO 2005101943 A2 WO2005101943 A2 WO 2005101943A2 JP 2005007276 W JP2005007276 W JP 2005007276W WO 2005101943 A2 WO2005101943 A2 WO 2005101943A2
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- WIPO (PCT)
- Prior art keywords
- electronic component
- mounting
- substrate
- electronic components
- heating
- Prior art date
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Classifications
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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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/02—Feeding of components
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67144—Apparatus for mounting on conductive members, e.g. leadframes or conductors on insulating substrates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/68—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for positioning, orientation or alignment
- H01L21/681—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for positioning, orientation or alignment using optical controlling means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/683—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L21/6838—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere for supporting or gripping with gripping and holding devices using a vacuum; Bernoulli devices
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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
- H05K13/00—Apparatus or processes specially adapted for manufacturing or adjusting assemblages of electric components
- H05K13/04—Mounting of components, e.g. of leadless components
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49131—Assembling to base an electrical component, e.g., capacitor, etc. by utilizing optical sighting device
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/49117—Conductor or circuit manufacturing
- Y10T29/49124—On flat or curved insulated base, e.g., printed circuit, etc.
- Y10T29/4913—Assembling to base an electrical component, e.g., capacitor, etc.
- Y10T29/49144—Assembling to base an electrical component, e.g., capacitor, etc. by metal fusion
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53039—Means to assemble or disassemble with control means energized in response to activator stimulated by condition sensor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/5313—Means to assemble electrical device
- Y10T29/53174—Means to fasten electrical component to wiring board, base, or substrate
- Y10T29/53178—Chip component
Definitions
- the present invention relates to an electronic component mounting apparatus for mounting an electronic component having an adhesive layer on a surface to be bonded to a substrate defining a mounting object.
- the invention also relates to a method of mounting the electronic component.
- the adhesive tends to flow upward to upper surfaces of the semiconductor elements and stick to the mounting tool when the thin semiconductor elements are pressed upon the adhesive, thereby giving rise to a problem of impeding the normal function of the mounting tool to hold the elements.
- This technique can help reinforce the thin and flexuous semiconductor elements with the resin layer for ease of handling, and avoid drawbacks such as the adhesive flowing upward during mounting of the semiconductor elements to a substrate. Furthermore, it requires a pressure for pressing the electronic components against the substrate and a heat for hardening the adhesive layer when securing such components as the semiconductor elements to the substrate with the adhesive layer, as disclosed in Japanese Patent Unexamined Publications, Nos. Hll-135563 and Hll-121508, for examples.
- An electronic component mounting apparatus used for the purpose of mounting semiconductor elements to the substrate is therefore equipped with a thermo-compression bonding mechanism to heat and press the semiconductor elements.
- thermo-compressing tool for a predetermined duration in the process of thermo-compression bonding.
- This duration of holding time was not easily reducible by a large margin since it usually required a time of the order of seconds to harden the adhesive resin to a certain degree. It was thus a main factor of the difficulty in shortening the time for the mounting work, and the impediment against improving productivity of the mounting process in manufacturing the semiconductor devices.
- An electronic component mounting apparatus of the present invention is an apparatus for mounting electronic components to a substrate while heating the electronic components, each having an adhesive layer on a surface to be bonded to the substrate, and it comprises an electronic component feeder for feeding the electronic components, a substrate retainer for retaining the substrate, a mounting head provided with a plurality of holding tools for individually holding the electronic components and electronic component heating devices for heating the plurality of electronic components held by these holding tools, a mounting mechanism for transferring the mounting head from the electronic component feeder to the substrate retainer and for mounting the plurality of electronic components to the substrate by using the plurality of holding tools, and a controller for controlling the mounting mechanism.
- the electronic component heating devices disclosed here heat the electronic components from a moment when the holding tools pick up the electronic components at the electronic component feeder until another moment when the holding tools release the electronic components after mounting them to the substrate.
- the controller controls the mounting mechanism in a manner so that a first heating time of a duration from the moment when the holding tool comes into contact with the electronic component for picking it up till another moment immediately before the holding tool begins a mounting motion to the substrate is longer than a second heating time of a duration from the moment when the holding tool begins the mounting motion till another moment when the holding tool leaves the electronic component mounted to the substrate.
- the electronic component mounting apparatus of the present invention can improve efficiency of the electromc component mounting operation and realize a high productivity in the mounting step.
- a method of mounting electronic components of the present invention is a technique for mounting electronic components having an adhesive layer on surfaces to be bonded to a substrate while heating them, and it comprises an electronic component holding step for repeating a pick-up motion to pick up the electronic components supphed by an electronic component feeder one after another in a successive manner with each of a plurality of holding tools provided on a mounting head, a mounting head transferring step for moving the mounting head, after the electronic component holding step, to a position above a substrate retainer retaining the substrate, an electronic component mounting step for repeating a mounting operation, after the mounting head transferring step, to mount the electronic components to the substrate by vertically shifting the plurality of liolding tools one after another in a successive manner, an electronic component heating step for heating the electronic components from a moment when the holding tools come into contact with and pick up the electronic components at the electronic component feeder until another moment when the holding tools release and leave the electronic components after mounting them to the substrate retained on the substrate retainer.
- the electronic component heating step here comprises a first heating time of a duration from a moment when the holding tool comes into contact with the electronic component for picking it up till another moment immediately before the holding tool begins a mounting motion to the substrate, and a second heating time of a duration from the moment when the holding tool begins the mounting motion till another moment when the holding tool leaves the electromc component mounted to the substrate, and that the first heating time is set longer than the second heating time.
- the electronic component mounting step for holding and mounting the electronic components to the substrate one after another on a successive manner with the plurality of holding tools and the electronic component heating step for heating the electronic components by the holding tools are carried out simultaneously, and that the first heating time in the electronic component heating step of the duration from the moment when the holding tool comes into contact with the electronic component for picking it up until another moment immediately before the holding tool begins the mounting motion to the substrate is set longer than the second heating time of the duration from the moment when the holding tool begins the mounting motion till another moment when the holding tool leaves the electronic component mounted to the substrate.
- This method can reduce substantially the time to heat the electronic components while pressing them to the substrate, thereby improving efficiency of the electronic component mounting operation and realizing the high productivity in the mounting step.
- Fig. 1 is a plan view of an electronic component mounting apparatus according to a first exemplary embodiment of the present invention
- Fig. 2 is a sectioned side view of the electronic component mounting apparatus of the same exemplary embodiment of the present invention
- Fig. 3 is a sectioned plan view of the electronic component mounting apparatus of the same exemplary embodiment of the present invention
- Fig. 4 is a block diagram showing a configuration of a control system of the electronic component mounting apparatus of the same exemplary embodiment of this invention
- Fig. 5 is a timing chart showing a mounting operation of the electronic component mounting apparatus of the same exemplary embodiment of this invention
- FIG. 6C are diagrammatic drawings explanatorily illustrating a component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment of this invention
- Fig. 7 is another diagrammatic drawing illustrating explanatorily the component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment of this invention
- Fig. 8 is still another diagrammatic drawing illustrating explanatorily the component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment of this invention
- Fig. 9A and Fig. 9B are diagrammatic drawings illustrating explanatorily a component transferring and mounting operation of an electronic component mounting apparatus according to a second exemplary embodiment of this invention.
- FIG. 1 is a plan view of an electronic component mounting apparatus according to the first exemplary embodiment of this invention
- Fig. 2 a sectioned side view of the electronic component mounting apparatus of this same exemplary embodiment
- Fig. 3 a sectioned plan view of the electronic component mounting apparatus of the same exemplary embodiment
- Fig. 4 a block diagram showing a configuration of a control system of the electronic component mounting apparatus of the same exemplary embodiment
- Fig. 5 a timing chart showing a mounting operation of the electronic component mounting apparatus of the same exemplary embodiment
- Fig. 6A, 6B and 6C diagrammatic drawings explanatorily illustrating a component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment
- FIG. 7 another diagrammatic drawing explanatorily illustrating the component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment
- Fig. 8 still another diagrammatic drawing explanatorily illustrating the component transferring and mounting operation of the electronic component mounting apparatus of the same exemplary embodiment.
- Fig. 1 Fig. 2 and Fig. 3 depict a sectional view taken along a fine 2 - 2 in Fig. 1 and another sectional view taken along a line 3 - 3 in Fig. 2 respectively.
- electronic component feeder 200 is disposed to base 1.
- Electronic component feeder 200 is provided with jig holder 300, as shown in Fig. 2 and Fig. 3.
- Jig holder 300 detachably holds jig 4 having adhesive sheet 5 disposed to it. A large number of electronic components 6 split into individual segments are adhesively secured to adhesive sheet 5.
- Electronic component feeder 200 supplies electronic components 6 in the state of being adhered flatwise in rows on adhesive sheet 5 when jig 4 is held in position on jig holder 300.
- ejector 8 is disposed under adhesive sheet 5 held on jig holder 300 in a horizontally movable manner by ejector X-Y table 7.
- Ejector 8 has pin elevating mechanism to raise and lower an ejector pin (not shown in the figures) for the purpose of pushing up the component chips.
- Ejector pin pushes up electronic component 6 from the underneath of adhesive sheet 5 to remove electronic component 6 from adhesive sheet 5 when electronic component 6 is picked up from adhesive sheet 5 with a mounting head, as will be described later.
- Ejector 8 functions as an adhesive sheet separating mechanism for removing electronic component 6 from adhesive sheet 5.
- Each of electronic components 6 here has adhesive layer 6b formed on the lower surface of semiconductor chip 6a, or the surface to be bonded to substrate 13, as shown in an enlarged part of the drawing.
- Adhesive layer 6b comprises a semi-hardened adhesive resin, and it is formed by bonding a die-attach film made of the semi-cured resin in a filmily form on a semiconductor wafer before being split into the individual segments of semiconductor chips 6a.
- substrate retainer 10 is disposed to an upper surface of base 1 in a position apart from electronic component feeder 200 along the Y-direction, for retaining substrate 13 on which electromc components 6 are mounted.
- substrate carry-in conveyer 11 and substrate carry-out conveyer 12 arranged in the upstream and downstream respectively of substrate retainer 10 along the X-direction.
- Substrate 13 carried in from the upstream by substrate carry-in conveyer 11 is transferred to substrate retainer 10 where electronic components are mounted to it, and carried out to the downstream by substrate carry-out conveyer 12.
- Substrate retainer 10 is provided with substrate holder 10a having a built-in substrate heater 500 for heating the substrate, as shown in Fig. 2.
- Substrate 13 carried in and held by substrate retainer 10 is heated from the underside by heater 500.
- substrate retainer 10 has a structure equipped with heater 500 for heating substrate, so that it can preheat substrate 13 prior to mounting the electronic components in order to expedite thermal curing of adhesive layer 6b.
- heater 500 for heating substrate
- first Y-axis base 20A and second Y-axis base 20B are disposed in a longitudinal orientation to the upper surface of base 1 at both sides thereof along the Y-direction orthogonal to the direction where the substrate is transferred (i.e., the X- direction).
- First Y-axis base 20A and second Y-axis base 20B have their respective one of Y-axis guides 21 disposed to their upper surfaces in a manner to extend substantially entirely over their dimension along the longitudinal direction (i.e., the Y-direction). The pair of Y-axis guides 21 are thus in parallel to each other with electronic component feeder
- the pair of Y-axis guides 21 supports three beam members, namely, first beam member 31, center beam member 30 and second beam member 32, at both ends thereof in a manner so that they are freely slidable in the Y-direction.
- Center beam member 30 is provided with nut member 23b protruding from the right end thereof.
- Feed screw 23a engaged with nut member 23b is driven by Y-axis motor 22 disposed horizontally to first Y-axis base 20A.
- center beam member 30 moves horizontally in the Y-direction along Y-axis guides 21.
- Both first beam member 31 and the second beam member 32 are also provided with nut members 25b and 27b respectively in a protruding manner from their left ends.
- Feed screws 25a and 27a engaged with their respective nut members 25b and 27b are driven by Y-axis motors 24 and 26 disposed horizontally to second Y-axis base 20B.
- first beam member 31 and second beam member 32 also move horizontally in the Y-direction along Y-axis guides 21.
- Center beam member 30 is equipped with mounting head 33. Nut member 41b fixed to mounting head 33 is in engagement with feed screw 41a which is driven by X-axis motor 40.
- mounting head 33 When driven by X-axis motor 40, mounting head 33 moves in the X-direction by being guided along X-axis guides 42 (refer to Fig. 2) provided on one side of center beam member 30.
- Mounting head 33 is provided with a plurahty of suction nozzles 33a (4 units in each of 2 rows for a total of 8 units in this embodiment), for individually suctioning and holding one each of electronic components 6.
- Each of suction nozzles 33a has its own heater 49 for heating the electronic component individually, as shown in Fig. 2.
- Electronic component 6 held on suction nozzle 33a is heated with the heat conducted through their contacting surface.
- Suction nozzles 33a function as holding tools for holding electronic components 6 individually.
- Mounting head 33 thus has a structure comprising the plurahty of holding tools for individually holding electronic components 6, and electronic component heating devices for heating the plurahty of electronic components 6 held on these holding tools.
- Heaters 49 are kept in an operating mode at all the time while mounting heads 33 are in their transferring and mounting operation of electronic components 6, as will be described later, so that they heat electronic components 6 continuously while the electronic components 6 are in contact with suction nozzles 33a.
- the electronic component heating devices i.e., heaters 49
- the electronic component heating devices are designed to heat electronic components 6 from a moment when suction nozzles 33a pick up electronic components 6 at electronic component feeder 200 until another moment when suction nozzles 33a release electronic components 6 after mounting them to substrate 13.
- Mounting head 33 is equipped with a nozzle elevating mechanism and a nozzle rotating mechanism that make suction nozzles 33a individually movable vertically as well as rotatable horizontally around their axes (refer to Fig. 4). Mounting head 33 is also movable with the plurahty of electronic components 6 held individually on suction nozzles 33a.
- Y-axis motor 22 and X-axis motor 40 are operated, mounting head 33 moves horizontally in the X- and Y-directions, suctions and holds electronic components 6 with suction nozzles 33a at electronic component feeder 200, and mounts electronic components 6 being held thereon to their respective mounting positions on substrate 13.
- the pair of Y-axis guides 21, center beam member 30, a Y-axis driving mechanism (comprised of Y-axis motor 22, feed screw 23a and nut member 23b) for moving center beam member 30 along Y-axis guides 21, and an X-axis driving mechanism (comprised of X-axis motor 40, feed screw 41a and nut member 41b) for moving mounting head 33 along X-axis guides 42 constitute a mounting head moving mechanism for moving mounting head 33 between two positions above electronic component feeder 200 and substrate retainer 10.
- the mounting head moving mechanism and mounting head 33 compose a mounting mechanism for moving mounting head 33 from electronic component feeder 200 to substrate retainer 10, and for mounting a plurahty of electronic components 6 to substrate 13 by means of the plurahty of holding tools 33a.
- First beam member 31 is further equipped with substrate viewing camera 34.
- Bracket 34a which retains substrate viewing camera 34 has nut member 44b connected to it. Feed screw 44a engaged with nut member 44b is driven by X-axis motor 43. When driven by X-axis motor 43, substrate viewing camera 34 moves in the X-direction by being guided along X-axis guides 45 (refer to Fig. 2) provided on the side of first beam member 31. Substrate viewing camera 34 thus moves horizontally in both the X- and Y-directions when driven by Y-axis motor 24 and X-axis motor 43. Accordingly, substrate viewing camera 34 can be moved forward above substrate retainer 10 for taking an image of substrate 13 retained by substrate retainer 10, and for returning back from above the substrate retainer 10.
- the pair of Y-axis guides 21, first beam member 31, a Y-axis driving mechanism (comprised of Y-axis motor 24, feed screw 25a and nut member 25b) for moving first beam member 31 along Y-axis guides 21, and an X-axis driving mechanism (comprised of X-axis motor 43, feed screw 44a and nut member 44b) for moving substrate viewing camera 34 along X-axis guides 45 constitute a substrate viewing camera moving mechanism for moving substrate viewing camera 34.
- Second beam member 32 is equipped with wafer viewing camera 35. Bracket 35a which retains wafer viewing camera 35 has nut member 47b connected to it. Feed screw 47a engaged with nut member 47b is driven by X-axis motor 46.
- wafer viewing camera 35 When driven by X-axis motor 46, wafer viewing camera 35 moves in the X-direction by being guided along X-axis guides48 (refer to Fig. 2) provided on the side of second beam member 32. Wafer viewing camera 35 thus moves horizontally in both the X- and Y-directions when driven by Y-axis motor 26 and X-axis motor 46. Accordingly, wafer viewing camera 35 can be moved forward above electronic component feeder 200 for taking an image of electronic components 6 held on electronic component feeder 200, and for returning back from above the electronic component feeder 200.
- the pair of Y-axis guides 21, second beam member 32, a Y-axis driving mechanism (comprised of Y-axis motor 26, feed screw 27a and nut member 27b) for moving second beam member 32 along Y-axis guides 21, and an X-axis driving mechanism (comprised of X-axis motor 46, feed screw 47a and nut member 47b) for moving wafer viewing camera 35 along X-axis guides 48 constitute a wafer viewing camera moving mechanism for moving wafer viewing camera 35.
- Electronic component viewing camera 15 serving as an electronic component recognition unit is disposed in an area between electronic component feeder 200 and substrate retainer 10, where mounting head 33 is moved by the mounting head moving mechanism, as shown in Fig. 3.
- Electronic component viewing camera 15 is a linear type camera having linear optical detector 15b placed in the Y-direction as shown in Fig. 3.
- electronic component viewing camera 15 detects electronic components 6 held on suction nozzles 33a of mounting head 33 from below, and takes an image of electronic components 6.
- controller 50 controls ejector mechanism 80 (composed of ejector 8, ejector X-Y table 7 and pin elevating mechanism), nozzle elevating motor 33b for driving nozzle elevating mechanism in mounting head 33, driving motor 33c for the nozzle horizontally rotating mechanism, X-axis motor 40 for mounting head moving mechanisms 51, Y-axis motor 22, substrate viewing camera moving mechanism 52 and wafer viewing camera moving mechanism 53. That is, controller 50 controls mounting mechanism 400 comprising mounting head 33 and mounting head moving mechanism 51.
- Electronic component recognition processor 54 detects a position of electronic components 6 as they are held by mounting head 33, by way of cognitive processing the viewed result (i.e., image) obtained by electronic component viewing camera 15.
- electronic component viewing camera 15 and electronic component recognition processor 54 function as an electronic component recognition unit for taking an image of the plurahty of electronic components 6 held by the holding tools, and recognizing the position of these electronic components 6.
- Substrate recognition processor 55 detects a position of substrate 13 on substrate retainer 10 by way of cognitive processing the viewed result (image) obtained by substrate viewing camera 34.
- Wafer recognition processor 56 detects a position of electronic components 6 on electronic component feeder 200 by way of cognitive processing the viewed result (image) obtained by wafer viewing camera 35.
- the results of recognition by electronic component recognition processor 54, substrate recognition processor 55 and wafer recognition processor 56 are delivered to controller 50. Controller 50 performs its controlling function based on these results of recognition in the process of component transferring and mounting operation described above.
- controller 50 controls the mounting mechanism comprised of mounting head 33 and mounting head moving mechanism 51 according to the position data of electronic components 6 detected by wafer recognition processor 56, when picking up electronic components 6 from electronic component feeder 200. Controller 50 also controls the mounting mechanism according to the position data of electronic components 6 detected by electronic component recognition processor 54 as well as the position data of substrate 13 detected by substrate recognition processor 55, when mounting electronic components 6 to substrate 13. Controller 50 here has the function of executing the individual operations to be carried out by the mounting mechanism according to the pre-established time allotment. Controller 50 controls the mounting mechanism and electronic component viewing camera 15 in a manner that a first heating time Tl becomes longer than a second heating time T2 as illustrated in the operation diagram of Fig.
- Fig. 7 is a timing chart showing an overall operation of transferring and mounting electronic components 6 as well as operations carried out by the individual suction nozzles 33a on mounting head 33.
- Figs. 6A, 6B and 6C show operating modes of mounting head 33 in the electronic component holding step, the mounting head moving step and the electronic component mounting step.
- the transferring and mounting operation comprises an electronic component holding step "A" for repeating a pick-up motion "P" to pick up electronic components 6 supplied by electronic component feeder 200 one after another in a successive manner with each of the plurahty of suction nozzles 33a (i.e., the first nozzle to eighth nozzle), a mounting head transferring step “B” for moving mounting head 33, after the electronic component holding step "A", to a position above substrate retainer 10 retaining substrate 13, and an electronic component mounting step “C” for repeating a mounting motion "M”, after the mounting head transferring step "B", to mount electronic components 6 to substrate 13 by, vertically shifting the plurahty of suction nozzles 33a (i.e., the first nozzle to eighth nozzle) one after another in a successive manner.
- the plurahty of suction nozzles 33a i.e., the first nozzle to eighth nozzle
- suction nozzles 33a are moved to be in alignment with electronic components 6 affixed to adhesive sheet 5 in a successive manner, and make the individual suction nozzles 33a hold electronic components 6 one after another by having suction nozzles 33a carry out the pick-up motion "P" individually, as shown in Fig. 6A.
- suction nozzles 33a are moved to a position above electronic components 6 to be picked up, and one of suction nozzles 33a is lowered to bring it into contact with a top surface of one of electronic components 6. Heater 49 has already been energized by this time so that heating of electronic component 6 begins at the moment when suction nozzle 33a comes into contact with it.
- suction nozzle 33a starts being raised at a low speed and then at a higher speed, to complete the pick up motion "P" for this suction nozzle 33a.
- another pick-up motion "P” is executed in the same manner for the next suction nozzle 33a, following a nozzle motion "Q" which includes a horizontal movement for making a positional alignment of the suction nozzle 33a to adjoining electronic component 6 and a rotational movement for making correction of " ⁇ " orientation (i.e., orientational correction in the horizontal rotating angle).
- the same pick-up motion "P” and nozzle motion "Q” are then executed consecutively for the subsequent suction nozzles 33a.
- mounting head 33 moves horizontally from the position above component feeder 200 to substrate retainer 10, while holding electronic components 6 on all suction nozzles 33a as shown in Fig. 6B.
- Electronic components 6 are heated continuously during this step by heaters 49 through suction nozzles 33a.
- Mounting head 33 moves to a point left-side of electronic component viewing camera 15 (i.e., moving distance "Dl” shown in Fig. 5) while holding electronic components 6 on all suction nozzles 33a, during this mounting head transferring step "B".
- Mounting head 33 then moves horizontally toward substrate retainer 10 (i.e., moving distance "D3" shown in Fig. 5).
- the plurahty of suction nozzles 33a are ahgned to component mounting locations on substrate 13 one by one in a successive manner, and make suction nozzles 33a mount electronic components 6 held on the individual suction nozzles 33a by having suction nozzles 33a carry out mounting motion "M" one after another, as shown in Fig. 6C.
- Substrate 13 has already been preheated by this time with substrate heater 500 built into substrate holder 10a so that the heat can further expedite thermal curing of adhesive layers 6b on electronic components 6.
- Electronic component heating step "E” is executed for each of suction nozzles 33a, in which electronic component 6 is heated from the moment when suction nozzle 33a comes into contact and holds electronic component 6 at electronic component feeder 200 until another moment when suction nozzle 33a releases electronic component 6 after mounting it to substrate 13 retained by substrate retainer 10, as shown in Fig.
- a heating time in this electronic component heating step “E” can be divided into a first heating time Tl of a duration from the moment when suction nozzle 33a comes into contact to hold electronic component 6 till immediately before it begins the mounting motion "M", and a second heating time T2 of a duration from the moment when suction nozzle 33a begins the mounting motion "M” till another moment when it leaves electronic component 6 mounted to substrate 13.
- the mounting mechanism is controlled by controller 50 in a manner that the first heating time Tl becomes longer than the second heating time T2.
- the process of taking the image and recognition of the electronic component is carried out by electronic component viewing camera 15 during this first heating time Tl.
- this embodiment allows a sufficient heating time to heat electronic components 6 before the individual suction nozzles 33a begin their mounting motions "M". Suction nozzles 33a are therefore not required to stay standing at the lower position to heat electronic components 6 during the mounting motions "M”.
- this invention can reduce the time required for the mounting operation to 0.2 second or less. As a result, the invention can substantially shorten a cycle time of the overall operation in the electronic component mounting work as compared to the conventional method of heating electronic components 6 while pressing them against the substrate. It therefore improves efficiency of the electronic component mounting operation and reahzes high productivity in the component mounting step.
- the invention also limits to very short a time in which a shaft of suction nozzle 33a is heated by the heat radiated from heaters 49 of the adjoining suction nozzles 33a, since suction nozzle 33a stays standing only for a short period of time in the lower position duration the mounting motion shown in Fig. 6C.
- the invention can thus avoid a problem attributable to thermal expansion and contraction of various parts of the mechanism in mounting head 33 due to rises in temperature by the heat conducted to the mechanism from suction nozzles 33a.
- Fig. 9A and Fig. 9B are diagrammatic drawings explanatorily illustrating a component transferring and mounting operation by an electronic component mounting apparatus according to the second exemplary embodiment.
- the second exemplary embodiment differs from the above-discussed first exemplary embodiment in the following respect.
- heaters 491 comprising non-contact type heating devices are disposed in a manner to surround a plurahty of suction nozzles 33a on the underside surface of mounting head 33 to heat the plurahty of suction nozzles 33a without being in contact thereto by means of the radiant heat of heaters 491.
- hke advantageous effects are also anticipated as those of the first exemplary embodiment described above.
- An electronic component mounting apparatus of the present invention has advantages of improving efficiency in the mounting operation of electronic components and realizing high productivity of the component mounting step, and it is especially useful for mounting low-profile electronic components to a substrate.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE602005001602T DE602005001602T2 (en) | 2004-04-15 | 2005-04-08 | FITTING DEVICE FOR ELECTRONIC COMPONENTS AND METHOD FOR FITTING ELECTRONIC COMPONENTS |
US10/571,289 US7409761B2 (en) | 2004-04-15 | 2005-04-08 | Electronic component mounting apparatus and method of mounting electronic components |
EP05729207A EP1661442B1 (en) | 2004-04-15 | 2005-04-08 | Electronic component mounting apparatus and method of mounting electronic components |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004-120166 | 2004-04-15 | ||
JP2004120166A JP4372605B2 (en) | 2004-04-15 | 2004-04-15 | Electronic component mounting apparatus and electronic component mounting method |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2005101943A2 true WO2005101943A2 (en) | 2005-10-27 |
WO2005101943A3 WO2005101943A3 (en) | 2006-01-12 |
Family
ID=35064760
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2005/007276 WO2005101943A2 (en) | 2004-04-15 | 2005-04-08 | Electronic component mounting apparatus and method of mounting electronic components |
Country Status (9)
Country | Link |
---|---|
US (1) | US7409761B2 (en) |
EP (1) | EP1661442B1 (en) |
JP (1) | JP4372605B2 (en) |
KR (1) | KR100738769B1 (en) |
CN (1) | CN100461998C (en) |
AT (1) | ATE367079T1 (en) |
DE (1) | DE602005001602T2 (en) |
TW (1) | TW200539282A (en) |
WO (1) | WO2005101943A2 (en) |
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EP3125661A4 (en) * | 2014-03-24 | 2017-03-01 | Fuji Machine Mfg. Co., Ltd. | Die mounting system and die mounting method |
WO2017205167A1 (en) * | 2016-05-27 | 2017-11-30 | Universal Instruments Corporation | Dispensing head having a nozzle heater device, system and method |
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DE102014114732B4 (en) * | 2014-10-10 | 2016-06-02 | Trumpf Laser Gmbh | METHOD FOR ATTACHING A SATURATED SEMICONDUCTOR ABSORBER ELEMENT TO A SUPPORT AND SEMICONDUCTOR ABSORBER ELEMENT UNIT |
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WO2017194286A1 (en) * | 2016-05-13 | 2017-11-16 | Asml Netherlands B.V. | Multiple miniature pick up elements for a component stacking and/or pick-and-place process |
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- 2005-04-08 WO PCT/JP2005/007276 patent/WO2005101943A2/en active IP Right Grant
- 2005-04-08 KR KR1020067003544A patent/KR100738769B1/en not_active IP Right Cessation
- 2005-04-08 EP EP05729207A patent/EP1661442B1/en not_active Not-in-force
- 2005-04-08 TW TW094111119A patent/TW200539282A/en unknown
- 2005-04-08 DE DE602005001602T patent/DE602005001602T2/en active Active
- 2005-04-08 US US10/571,289 patent/US7409761B2/en not_active Expired - Fee Related
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EP3125661A4 (en) * | 2014-03-24 | 2017-03-01 | Fuji Machine Mfg. Co., Ltd. | Die mounting system and die mounting method |
US10032650B2 (en) | 2014-03-24 | 2018-07-24 | Fuji Machine Mfg. Co., Ltd. | Die mounting system and die mounting method |
WO2017205167A1 (en) * | 2016-05-27 | 2017-11-30 | Universal Instruments Corporation | Dispensing head having a nozzle heater device, system and method |
US10893638B2 (en) | 2016-05-27 | 2021-01-12 | Universal Instruments Corporation | Dispensing head having a nozzle heater device, system and method |
Also Published As
Publication number | Publication date |
---|---|
TW200539282A (en) | 2005-12-01 |
EP1661442B1 (en) | 2007-07-11 |
JP2005303180A (en) | 2005-10-27 |
US20080104831A1 (en) | 2008-05-08 |
US7409761B2 (en) | 2008-08-12 |
WO2005101943A3 (en) | 2006-01-12 |
CN1843069A (en) | 2006-10-04 |
EP1661442A2 (en) | 2006-05-31 |
DE602005001602T2 (en) | 2007-11-22 |
JP4372605B2 (en) | 2009-11-25 |
CN100461998C (en) | 2009-02-11 |
KR100738769B1 (en) | 2007-07-12 |
ATE367079T1 (en) | 2007-08-15 |
DE602005001602D1 (en) | 2007-08-23 |
KR20060087513A (en) | 2006-08-02 |
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