WO2006098426A1 - 電子部品の実装方法及び電子部品実装装置 - Google Patents
電子部品の実装方法及び電子部品実装装置 Download PDFInfo
- Publication number
- WO2006098426A1 WO2006098426A1 PCT/JP2006/305352 JP2006305352W WO2006098426A1 WO 2006098426 A1 WO2006098426 A1 WO 2006098426A1 JP 2006305352 W JP2006305352 W JP 2006305352W WO 2006098426 A1 WO2006098426 A1 WO 2006098426A1
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- WIPO (PCT)
- Prior art keywords
- electronic component
- wiring board
- electrode terminal
- connection terminal
- solder
- Prior art date
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49811—Additional leads joined to the metallisation on the insulating substrate, e.g. pins, bumps, wires, flat leads
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- H01L2924/151—Die mounting substrate
- H01L2924/156—Material
- H01L2924/15786—Material with a principal constituent of the material being a non metallic, non metalloid inorganic material
- H01L2924/15788—Glasses, e.g. amorphous oxides, nitrides or fluorides
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- 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
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19041—Component type being a capacitor
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- 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
- H01L2924/19—Details of hybrid assemblies other than the semiconductor or other solid state devices to be connected
- H01L2924/1901—Structure
- H01L2924/1904—Component type
- H01L2924/19043—Component type being a resistor
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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
- H05K2203/01—Tools for processing; Objects used during processing
- H05K2203/0195—Tool for a process not provided for in H05K3/00, e.g. tool for handling objects using suction, for deforming objects, for applying local 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
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/048—Self-alignment during soldering; Terminals, pads or shape of solder adapted therefor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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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.
- Y10T29/49133—Assembling to base an electrical component, e.g., capacitor, etc. with component orienting
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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.
- Y10T29/49133—Assembling to base an electrical component, e.g., capacitor, etc. with component orienting
- Y10T29/49137—Different 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.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
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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.
- Y10T29/49139—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture
- Y10T29/4914—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal
- Y10T29/49142—Assembling to base an electrical component, e.g., capacitor, etc. by inserting component lead or terminal into base aperture with deforming of lead or terminal including 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
- Y10T29/49—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
- Y10T29/49—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.
- Y10T29/49147—Assembling terminal to base
- Y10T29/49149—Assembling terminal to base by metal fusion bonding
Definitions
- the present invention relates to a method of mounting an electronic component on a wiring substrate by soldering and a mounting apparatus therefor.
- a method of reflow soldering connection of electronic parts including passive parts such as resistors and capacitors or functional parts such as semiconductor elements on a wiring substrate to form an electronic circuit is generally performed.
- the electrode terminal of the electronic component is solder paste so as to face the connection terminal. Fix using the adhesive force of. After that, in a state where the electronic component is adhered by the solder paste, the wiring substrate is put into a reflow furnace to melt the solder, thereby connecting the electrode terminal of the electronic component and the connection terminal of the wiring substrate.
- the wiring substrate and the electronic component are fixed only by the adhesive force of the solder paste, and when the solder is melted, the connection terminal and the electronic component are connected by the self alignment effect by the surface tension of the solder. Even if there is a certain amount of positional displacement between the electrode terminal and the electrode terminal, bonding is performed so as to eliminate this positional displacement.
- the electrode end of the electronic component is solder paste on the connection terminal of the wiring substrate.
- a semiconductor chip mounting method (hereinafter referred to as a first mounting method) for improving the positioning accuracy and the production efficiency in surface mounting.
- the first implementation method is
- the circuit board is vibrated until the connection points are cooled to below the freezing point
- a method of mounting a semiconductor chip (hereinafter referred to as a second mounting method) for mounting a semiconductor chip on a wiring substrate through solder bumps has been proposed.
- the second implementation method is
- Patent Document 1 Japanese Patent Application Laid-Open No. 06-260744
- Patent Document 2 Japanese Patent Application Laid-Open No. 10-032225
- both the heating mechanism and the driving mechanism are provided on the bonding tool side, there are the following problems. That is, when the heating of the bonding tool is repeated, the heat is transmitted to the XY 0 drive mechanism, and the sliding performance of the bearing mechanism and the like is easily deteriorated.
- an electronic component mounting method of the present invention is a mounting method of mounting an electronic component having electrode terminals on a wiring board having connection terminals via solder.
- the electrode terminal and the connection terminal are based on the surface of the wiring board while maintaining a gap formed between the wiring board and the electronic component by melting the solder. Relative movement can be made relatively in the vertical direction.
- the driving force generated due to molten solder self-alignment may be capable of relatively finely moving in the XY 0 direction.
- the electronic component can be positioned with high accuracy when contacting the mounting position of the wiring board, and when the contact is melted to bond the solder, the cell surface effect of the surface tension of the solder can be obtained. It can be demonstrated effectively.
- the wiring substrate while maintaining a state in which the electrode terminal and the connection terminal are in contact with each other And a fourth step of heating at least one of the electronic components to bond the electrode terminal and the connection terminal with the solder powder.
- the solder is melted in a state in which the solder powder is melted and the solder powder is self-assembled between the electrode terminal and the connection terminal by the convection additive.
- the powder is grown and the electrode terminal and the connection terminal are connected by soldering
- the electronic component or the wiring substrate is held by the mounting tool, It is preferable that the mounting tool be capable of slightly moving in the vertical direction with respect to the surface of the wiring board. Then, when the electrode terminal and the connection terminal are connected by the melted solder powder, the electronic component finely moves the surface of the wiring board in the negative direction, so that the effect of the solder powder on the cellarisation is achieved. Can be made effective. Therefore, it is hard to produce position shift etc. after connection.
- the mounting tool holds the electronic component or the wiring board in a state where the mounting tool holds the electronic component or the wiring board. Fine movement may be possible in the negative direction with reference to the electrode terminal formation surface of the electronic component.
- the fixing base forms the connection terminal of the wiring board while the fixing base fixes the electronic component or the wiring board. It may be possible to move in the ⁇ direction with reference to the surface.
- the solder effect can be effectively generated in the molten state of the solder powder, so that the resin can be cured in the state in which the positional deviation is eliminated. Therefore, even if the electronic component or the wiring board shifts, the positional displacement of the connection does not occur until the solder powder cools and solidifies. As a result, immediately after the resin is cured, the wiring board on which the electronic component is mounted can be moved from the fixing base.
- the electronic component is a semiconductor element, and a metal material having wettability to the solder powder is formed on each surface of the electrode terminal of the semiconductor element and the connection terminal of the wiring substrate. It is preferable that Then, the semiconductor element can be soldered to the wiring substrate only by providing a metal having good wettability to the solder powder at the electrode terminal of the semiconductor element, and the semiconductor element can be mounted on the wiring substrate. It can be simplified. Examples of metal materials having good wettability to solder powder include simple metals such as gold (Au), silver (Ag), copper (Cu), nickel (Ni), and alloys of these metals. A solder represented by copper (Cu) -tin (Sn) may be formed by vapor deposition, plating or the like.
- the electronic component mounting apparatus of the present invention is
- An electronic component mounting apparatus for mounting an electronic component having an electrode terminal on a wiring board having a connection terminal via solder
- a fixing base for fixing one of the electronic component and the wiring board
- a mounting tool for bringing the electrode terminal of the electronic component into contact with the connection terminal of the wiring substrate while holding the electronic component or the wiring substrate fixed; and the electrode terminal and the connection terminal A heating mechanism for heating at least one of the electronic component and the wiring board in a state where the In a state in which the fixing operation by the fixing base and the gripping operation by the mounting tool are performed, the electrode terminal and the connection terminal are relatively moved slightly in the vertical direction with reference to the surface of the wiring board.
- a fixing mechanism which relatively fixes the electronic component and the wiring board by stopping the first driving mechanism
- the present invention enables solder connection positioned with high accuracy. Furthermore, since the wedge drive mechanism can be provided at a position separated from the heating mechanism, it is possible to suppress the thermal deterioration of the XY 0 drive mechanism. Therefore, stable tremor can be performed for a long time, and the reliability of the device can be improved.
- a configuration in which the wiring substrate is floated and mounted on for example, oil
- a configuration in which the wiring substrate is directly floated and mounted on a portion to which gas (for example, nitrogen gas) is blown up can be adopted, such as a configuration in which other magnetic metal plates provided at positions facing the metal plate are magnetized to the same pole and floated by repulsive force.
- the heat sink drive mechanism may be operated until the solder is melted and solidified by the heating mechanism.
- the heat treatment mechanism may have a heat blocking mechanism that suppresses the heat transmitted to the electronic component or the wiring board.
- a heat blocking mechanism there are materials with small heat conductivity, such as resin in which air bubbles are dispersed, porous ceramic, and the like.
- the heat blocking mechanism can be configured by providing these materials between the holding portion for holding and fixing the electronic component of the component mounting tool and the wedge driving mechanism.
- an electronic component mounting apparatus is an electronic component mounting apparatus for mounting an electronic component having an electrode terminal on a wiring board having a connection terminal via solder, A fixing base for fixing one of the electronic component and the wiring substrate, a solder paste forming area on a connection terminal formation area or an electrode terminal forming surface of the electronic component or the wiring substrate fixed by the fixing base, An application mechanism for applying a resin composition containing a convective additive and a resin having flowability at the melting temperature of the solder powder, and fixing the electronic component or the wiring substrate while holding the electronic component or the wiring substrate.
- a mounting tool in which the electrode terminal of the electronic component and the connection terminal of the wiring substrate are brought into contact with each other in a state in which the resin composition is interposed;
- a heating mechanism configured to heat at least one of the wiring board and the electronic component in a state where the electrode terminal and the connection terminal are in contact with each other;
- the present invention can realize solder connection by self assembly with high reproducibility and stably. Moreover, at that time, short circuit failure and connection failure can occur.
- the mounting tool grips the electronic component
- the fixing base fixes the wiring board
- the fixing table further includes a driving mechanism for finely moving the wiring substrate in the vertical direction with reference to the surface on which the electrode terminal is formed of the electronic component, with the wiring substrate fixed. .
- An electronic component mounting apparatus for mounting an electronic component having an electrode terminal on a wiring board having a connection terminal via solder
- a fixing base for fixing one of the electronic component and the wiring board
- a solder powder, a convective additive, and a resin having fluidity at the melting temperature of the solder powder are included in the connection terminal formation region or the electrode terminal formation surface of the electronic component or the wiring substrate fixed by the fixing base.
- a heating mechanism configured to heat at least one of the wiring board and the electronic component in a state where the electrode terminal and the connection terminal are in contact with each other;
- the present invention can realize solder connection by self assembly with high reproducibility and stably. Moreover, at that time, short circuit failure and connection failure can occur.
- the mounting tool holds the electronic component
- the mounting tool further includes a driving mechanism for finely moving the electronic component in a vertical direction with reference to the surface of the wiring substrate in a state in which the electronic component is held.
- the thermal drive mechanism operates in a state where the solder is melted after the electrode terminal and the connection terminal are connected by the solder.
- the fixing base fixes the wiring board
- the fixing table further includes a driving mechanism for finely moving the wiring substrate in the vertical direction with reference to the surface on which the electrode terminal is formed of the electronic component, with the wiring substrate fixed.
- the thermal drive mechanism operates in a molten state of the solder after the electrode terminal and the connection terminal are connected by the solder.
- the solder powder self-assembles and the electrode terminal and the connection terminal For the period until connection by the solder powder, since the wiring substrate or the electronic component is held by the mounting tool, the electronic component and the wiring substrate generated due to the gas generated by boiling or decomposition of the convection additive It is possible to prevent positional deviation between the two and fluctuation of the gap formed between the two. As a result, even with fine pitch, solder can be grown without shorting each other. On the other hand, after being connected to each other, since the self-alignment effect can be exhibited effectively, positional deviation occurs and the deviation can be eliminated.
- the heating mechanism further has a function of heating the solder and then heating the solder to a temperature higher than the heating temperature of the solder.
- the thermal drive mechanism further includes a heat blocking mechanism for suppressing heat transfer from the heating mechanism.
- a heat blocking mechanism for suppressing heat transfer from the heating mechanism.
- a material having a small thermal conductivity such as a resin in which air bubbles are dispersed, a porous ceramic, etc., is provided between the holding portion for holding and fixing the electronic component of the component mounting tool and the wedge driving mechanism. It can be adopted.
- the present invention it is possible to suppress the occurrence of positional deviation of the electronic component in the process after positioning by the component mounting tool in the mounting process. Furthermore, the electronic component can be connected to the wiring board by effectively utilizing the cellular function of solder. As a result, productivity and reliability can be improved in the mounting of an electronic component having a multi-pin, narrow-pitch electrode terminal.
- FIG. 1 is a cross-sectional view showing an outline of an electronic component mounting apparatus according to a first embodiment of the present invention.
- FIG. 2A Cross-sectional view of the first step of the main steps of the method of mounting an electronic component according to the first embodiment. It is.
- FIG. 2B is a cross-sectional view of a second stage of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 3A is a cross-sectional view of the third step of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 3B is a cross-sectional view of a fourth stage of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 4 is a flowchart of the mounting process of the electronic component of the embodiment.
- FIG. 5A is a cross-sectional view showing the first step of the main steps of a method of mounting an electronic component according to a second embodiment of the present invention.
- FIG. 5B is a cross-sectional view of the second stage of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 6A is a cross-sectional view of the third step of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 6B is a cross-sectional view showing the fourth step of the main process of the method of mounting an electronic component according to the first embodiment.
- FIG. 7A is a cross-sectional view of a first stage of the main steps of a method of mounting an electronic component according to a third embodiment of the present invention.
- FIG. 7B is a cross-sectional view of the second stage of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 8A is a cross-sectional view of the third step of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 8B is a cross-sectional view of a fourth stage of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 10A is a cross-sectional view of a first stage of the main steps of a method of mounting an electronic component according to a fourth embodiment of the present invention.
- FIG. 10A is a cross-sectional view of a first stage of the main steps of a method of mounting an electronic component according to a fourth embodiment of the present invention.
- FIG. 10B The cross section of the second step of the main steps of the mounting method of the electronic component according to the first embodiment.
- FIG. 11A is a cross-sectional view of the third step of the main steps of the method of mounting an electronic component according to the first embodiment.
- FIG. 11B is a cross-sectional view showing the fourth step of the main process of the method of mounting an electronic component according to the first embodiment.
- a component mounting tool 10 and a substrate fixing base 22 are disposed on a mount 24.
- the component mounting tool is held by a support column 26 erected from a stand 24 and a horizontal moving unit 28.
- the support 26 vertically moves the component mounting tool 10, and the horizontal movement unit 28 moves the component mounting tool 10 horizontally to perform rough positioning.
- the component mounting tool 10 is provided with a tool fixing portion 12, a wedge driving mechanism 14, a heat blocking mechanism 16, a fixing mechanism 18, and a holding portion 20. Furthermore, a calorific mechanism is provided inside the holding unit 20, and the electronic component can be heated to a predetermined temperature by this heating mechanism.
- the heat blocking mechanism 16 is provided to suppress heat transfer to the XY 0 driving mechanism 14 when the electronic component is heated by the heating mechanism of the holding unit 20.
- a porous ceramic plate may be fixed and used. Alternatively, use a heat-resistant resin such as polyimide.
- the holding unit 20 Furthermore, in the direction of the substrate fixing base 22 and the mechanism for moving the component mounting tool 10 to the substrate fixing base 22 by holding the electronic parts, which are disposed in advance at positions not shown, by the holding unit 20. It has a mechanism to move it. These controls are performed by a control unit (not shown).
- a semiconductor element is used as the electronic component 30, and the case where the semiconductor element is mounted on the wiring board 32 will be described.
- the electrode terminals 30A are formed on the entire surface of one surface at a constant arrangement pitch, and the solder bumps 34 are provided on the electrode terminals 30A.
- Solder bar The bumps 34 may be solder balls fixed by paste or the like, or may be formed by plating.
- connection terminals 32 A are provided at mounting positions where the semiconductor element 30 is mounted.
- the wiring board 32 may be a double-sided wiring board or a multilayer wiring board. Furthermore, it may be a wiring board mainly made of resin, or may be a wiring board made of ceramic material.
- the substrate may be a substrate on which a wiring is formed on a silicon substrate or a glass substrate.
- the wiring board 32 is fixed to the board fixing base 22 (S01).
- the semiconductor element 30 is gripped by the component mounting tool 10 (S02), and moved to the substrate fixing base 22 (S03).
- the electrode terminal 30A of the semiconductor element 30 and the connection terminal 32A of the wiring substrate 32 are aligned (S04). This situation is shown in Figure 2A.
- the component mounting tool 10 is moved to the wiring board 32 while keeping the aligned state, and the semiconductor element 30 is brought into contact with the wiring board 32 (S05).
- the heating mechanism incorporated in the holding unit 20 is operated to heat the semiconductor element 30 (S06). By this heating, the solder 34 formed on the electrode terminal 30A of the semiconductor element 30 is melted.
- the heating mechanism is built in the holding unit 20 of the component mounting tool 10
- the heating mechanism is built in the substrate fixing base 22 and the substrate fixing base 22 side force is also heated. It is also good.
- the heat blocking mechanism 16 can have a simpler configuration. Alternatively, it may not be provided.
- the electronic component mounting apparatus of the present embodiment will be described mainly with respect to differences from FIG. 1 with reference to the process sectional view of FIG. 5A.
- the component mounting tool 40 has a tool fixing portion 42 and a holding portion 44. Although there is a heating mechanism for heating the semiconductor element 30 inside the holding portion 44, it is not shown. Further, although a mechanism for bringing the semiconductor element 30 and the wiring substrate 32 into contact in parallel is also provided, it is not shown.
- a wedge drive mechanism 48 is provided between the substrate fixing base 46 and the wiring substrate 32.
- a fixing mechanism (not shown) for fixing the rod driving mechanism 48 is also provided.
- a fluid that withstands the melting temperature of the solder 34 for example, an oil
- the wiring board 32 may be placed on the surface of the sheet.
- a fixing mechanism in this case, it is possible to use, for example, a configuration in which the pins are in direct contact with and fixed to the wiring board 32 by a pin raising and lowering mechanism higher than the sheet.
- a flat plate is disposed on the upper portion of the substrate fixing base 46, and the overall force is also uniformly applied to the flat plate.
- the flat plate may be floated by blowing a gas such as nitrogen gas.
- the wiring board 32 is fixed on a flat plate.
- the gas source for blowing the gas and the nose for flowing the gas correspond to the fixing mechanism.
- FIGS. 5A to 6B a mounting method using the electronic component mounting apparatus of the present embodiment will be described with reference to FIGS. 5A to 6B.
- the mounting method of this embodiment can also be performed in the same flow as the flow chart shown in FIG. 4 and therefore will be described below with reference to FIG.
- the wiring board 32 is fixed to the board fixing base 46 (S01). At this time, since the driving mechanism 48 is fixed by a fixing mechanism (not shown) and moved, the wiring board 32 can be moved only integrally with the board fixing base 46.
- the solder 34 is formed on the surface of the connection terminal 32A of the wiring substrate 32 and will be described.
- the semiconductor element 30 is gripped by the component mounting tool 40 (S 02) and moved to the substrate fixing base 46 (S 03). After moving to the substrate fixing base 46, the electrode terminal 30A of the semiconductor element 30 and the connection terminal 32A of the wiring substrate 32 are aligned (S04). This state is shown in FIG. 5A.
- the component mounting tool 40 is moved toward the wiring substrate 32 while keeping the aligned state, and the semiconductor element 30 is brought into contact with the wiring substrate 32 (SO 5 ).
- the heating mechanism incorporated in the holding unit 44 is operated to heat the semiconductor element 30 (S06). By this heating, the solder 34 formed on the connection terminal 32A of the wiring board 32 is melted.
- the fixation of the wedge drive mechanism 48 by the fixation mechanism is released (S 07).
- the XY 0 drive mechanism 48 can be driven.
- the wiring board 32 disposed on the first driving mechanism 48 is in contact with the semiconductor element 30 (specifically, a gap formed between the wiring board 32 and the electronic component 30). It is possible to move freely only in the ⁇ direction with reference to the surface of the wiring board 32 while holding it. Therefore, when the solder 34 melts to produce a self-alignment effect, the wiring substrate 32 easily moves under the force of the self-alignment.
- the electronic component mounting structure as shown in FIG. 6B is obtained.
- the electronic component mounting structure thus produced has the same structure as the electronic component mounting structure of the first embodiment.
- FIGS. 7A to 8B are cross-sectional views of an electronic component mounting apparatus according to a third embodiment of the present invention and a main process for explaining an electronic component mounting method using the same.
- the electronic component mounting apparatus according to the present embodiment differs from the electronic component mounting apparatus shown in FIG. 1 in the following points.
- the electronic component is fixed to the component fixing base, and the wiring board is held by the substrate mounting tool and moved to the arrangement position of the electronic component on the component fixing base. , And in contact with the electronic component.
- the heating mechanism is disposed on the component fixing base side, and the wedge driving mechanism is disposed on the substrate mounting tool side.
- the other parts are the same as those of the electronic component mounting apparatus according to the first embodiment, and thus the description thereof is omitted.
- the mounting method of the electronic component will be described, and the configuration of the electronic component mounting apparatus of the present embodiment will also be described. Also in this embodiment, an example using a semiconductor element as an electronic component will be described. Further, in the present embodiment, the case where the solder 34 is formed on the surface of the connection terminal 32A of the wiring substrate 32 will be described.
- the electronic component mounting apparatus of the present embodiment will be described mainly with respect to differences from FIG. 1 with reference to the process sectional view of FIG. 7A.
- the substrate mounting tool 50 is mainly configured by a tool fixing portion 52, a holding portion 54 and an XY 0 drive mechanism 56.
- the substrate mounting tool 50 also has a mechanism for causing the semiconductor element 30 and the wiring substrate 32 to abut in parallel, but I did not.
- a wedge driving mechanism 56 is provided between the holding portion 54 of the substrate mounting tool 50 and the wiring substrate 32. Further, inside the holding portion 54, a fixing mechanism (not shown) for fixing the first driving mechanism 56 is provided.
- the configuration described in the second embodiment can be used as the second driving mechanism 56 and the fixing mechanism, and therefore the description thereof is omitted.
- the semiconductor element 30 is gripped by the substrate mounting tool 50 (S12) and moved to the component fixing base 58 (S13). After moving to the part fixing base 58, align the connection terminal 32A of the wiring board 32 and the electrode terminal 30A of the semiconductor element 30 (see FIG.
- the substrate mounting tool 50 is moved in the direction of the semiconductor element 30 while keeping the aligned state, and the semiconductor element 30 is brought into contact with the wiring board 32 (see FIG. 7B).
- the heating mechanism incorporated in the component fixing base 58 is operated to heat the semiconductor element 30 (S 16). By this heating, the solder 34 formed on the electrode terminal 30A of the semiconductor element 30 melts.
- the fixation of the wedge drive mechanism 56 by the fixation mechanism is released (S17).
- the XY 0 drive mechanism 56 can be driven.
- the wiring board 32 disposed in the first driving mechanism 56 is held in contact with the semiconductor element 30 (specifically, the gap formed between the wiring board 32 and the electronic component 30). As it is, it can move freely only in the ⁇ direction with reference to the surface of the wiring board 32. Therefore, when the solder 34 melts to produce a self-alignment effect, the wiring substrate 32 easily moves under the force of the self-alignment.
- the heating of the heating mechanism is stopped to solidify the solder 34.
- the fixing of the semiconductor element 30 to the component fixing stand 58 is released (S18).
- the gripping of the wiring board 32 is released (S19).
- FIGS. 10A to 11B are cross-sectional views for explaining an electronic component mounting method and an electronic component mounting apparatus according to a fourth embodiment of the present invention.
- the electronic component mounting apparatus according to the present embodiment differs from the electronic component mounting apparatus described in the first embodiment in the following points.
- the heating mechanism is provided inside the substrate fixing stand 70 without being provided in the holding portion 74 of the component mounting tool 72.
- a coating mechanism (not shown) for coating the resin composition 64 on the surface of the wiring substrate 62 is provided.
- a resin composition including a resin having fluidity at the melting temperature of solder powder, convection additive and solder powder is used to make an electronic component.
- a certain semiconductor element 60 and the wiring board 62 are mounted.
- solder is not formed on the surface of the electrode terminal 60A of the semiconductor element 60 before mounting and the connection terminal 62A of the wiring board 62. Further, the electrode terminal 60A and the connection terminal 62A are caulked in substantially the same shape, but the region where the self-assembly and growth is carried out is, for example, circularly provided. Round part As a result of the selective self-assembly and growth of solder, the solder grown on the connection terminal 62A of the wiring substrate 62 and the solder grown on the electrode terminal 62A of the semiconductor element 60 are combined and integrated. Connection is made. To this end, it is desirable that at least the surfaces of the electrode terminal 60A and the connection terminal 62A be made of a metal material having good wettability to the solder.
- the metal material is, for example, gold (Au), silver (Ag), copper (Cu), nickel (Ni), palladium (Pd), rhodium (Rh), platinum, and the like. It is possible to use tin (Sn) or indium (In) or the like which constitutes a solder made only of materials such as (Pt) and iridium (Ir).
- connection region for example, oxide film, nitride film, oxynitride film, etc., except for the surfaces of electrode terminal 60A and connection terminal 62A. It is desirable to form a surface protection film made of an inorganic material or a surface protection film made of a resin such as polyimide.
- a material which generates a gas by boiling or decomposing at least at a temperature at which the solder powder 68 melts.
- a liquid such as isopropyl alcohol, butyl acetate, ethylene glycol or butyl carbitol can be mixed with the resin 66 and used.
- the solder powder 68 any solder that is usually used for soldering, such as tin (Sn) -silver (Ag) -copper (Cu) can be used.
- the component mounting tool 72 is moved in the direction of the wiring board 62 while keeping the aligned state, and the resin composition on the wiring board 62 is resin composition. 64 Contact. By this contact, the resin composition 64 spreads uniformly between the semiconductor element 60 and the wiring board 62, and maintains a predetermined thickness. After that, the component mounting tool 74 maintains a certain gap between the semiconductor element 60 and the wiring board 62 and the parallelism.
- the wiring mechanism 62 is heated by operating a heating mechanism (not shown) disposed inside the substrate fixing base 70.
- a heating mechanism (not shown) disposed inside the substrate fixing base 70.
- the solder 68 in the resin composition 64 melts, and the viscosity of the resin 66 decreases and the flowability increases.
- the convection additive (not shown) boils or decomposes at this temperature to release the gas.
- the resin composition 64 containing the gas to be released is filled in the space closed by the semiconductor element 60 and the wiring substrate 62, the gas is contained in the peripheral region of the semiconductor element 60 and the wiring substrate 62. Release to the outside space through the gap.
- solder is grown, and when there is no gas release by the convection additive, the electrode terminal 60A and the connection terminal 62A are connected by the solder 76. This state is shown in FIG. 11A.
- the fixing mechanism 18 is released and the wedge driving mechanism 14 is operated.
- the wedge drive mechanism 14 is driven, since the solder 76 is still in a molten state, a self-alignment effect occurs.
- the semiconductor element 60 is finely moved by the force of the self-alignment, and the positional deviation can be eliminated.
- the resin composition 64 is formed.
- the resin 66 is cured. After the curing is completed, the heating is stopped and the solder 76 is solidified. After solidification of the solder 76 is completed, the gripping by the component mounting tool 72 is released.
- soldering using the resin composition 64 can be performed stably and reproducibly.
- This soldering method is characterized in that there is no need to form a solder bump or the like, so that the process can be simplified and mounting with a fine pitch is also possible.
- the substrate mounting tool holds the wiring substrate, and further includes a wedge driving mechanism capable of finely moving in the negative direction with reference to the surface on which the electrode terminal of the electronic component is formed.
- the XY 0 drive mechanism may be set so that the solder operates in a molten state after being connected by soldering between the electrode terminal and the connection terminal.
- the thermal mechanism may further have the function of heating to a temperature higher than the heating temperature of the solder connection after heating the solder connection.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electric Connection Of Electric Components To Printed Circuits (AREA)
- Wire Bonding (AREA)
Abstract
Description
Claims
Priority Applications (2)
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JP2007508221A JP4696110B2 (ja) | 2005-03-17 | 2006-03-17 | 電子部品の実装方法及び電子部品実装装置 |
US11/886,533 US7752749B2 (en) | 2005-03-17 | 2006-03-17 | Electronic component mounting method and electronic component mounting device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2005076799 | 2005-03-17 | ||
JP2005-076799 | 2005-03-17 |
Publications (1)
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WO2006098426A1 true WO2006098426A1 (ja) | 2006-09-21 |
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PCT/JP2006/305352 WO2006098426A1 (ja) | 2005-03-17 | 2006-03-17 | 電子部品の実装方法及び電子部品実装装置 |
Country Status (4)
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US (1) | US7752749B2 (ja) |
JP (1) | JP4696110B2 (ja) |
CN (2) | CN101142862A (ja) |
WO (1) | WO2006098426A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2016219552A (ja) * | 2015-05-18 | 2016-12-22 | 新光電気工業株式会社 | 電子部品搭載装置及び電子部品の搭載方法 |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090085227A1 (en) * | 2005-05-17 | 2009-04-02 | Matsushita Electric Industrial Co., Ltd. | Flip-chip mounting body and flip-chip mounting method |
DE112008000767T5 (de) * | 2007-04-03 | 2010-04-29 | Panasonic Corporation, Kadoma-shi | Verfahren zum Bestücken von Bauelementen |
CN104303281B (zh) | 2012-03-16 | 2017-03-08 | Ev 集团 E·索尔纳有限责任公司 | 用于将芯片接合到衬底的压力传递设备 |
CN104916553A (zh) * | 2014-03-11 | 2015-09-16 | 东莞高伟光学电子有限公司 | 将半导体器件或元件焊接到基板上的方法和装置 |
US9847313B2 (en) * | 2015-04-24 | 2017-12-19 | Kulicke And Soffa Industries, Inc. | Thermocompression bonders, methods of operating thermocompression bonders, and horizontal scrub motions in thermocompression bonding |
CN113257684A (zh) * | 2021-04-25 | 2021-08-13 | 深圳市时代速信科技有限公司 | 一种芯片的封装方法及装置 |
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JPS60203386A (ja) * | 1984-03-26 | 1985-10-14 | Nippon Genma:Kk | クリ−ムはんだおよびその製造法 |
US5062896A (en) * | 1990-03-30 | 1991-11-05 | International Business Machines Corporation | Solder/polymer composite paste and method |
US5136365A (en) * | 1990-09-27 | 1992-08-04 | Motorola, Inc. | Anisotropic conductive adhesive and encapsulant material |
JPH06125169A (ja) | 1992-10-13 | 1994-05-06 | Fujitsu Ltd | 予備はんだ法 |
JPH06206744A (ja) | 1993-01-12 | 1994-07-26 | Sumitomo Metal Ind Ltd | 製鋼スラグのエージング処理方法 |
JPH06262386A (ja) * | 1993-03-17 | 1994-09-20 | Matsushita Electric Ind Co Ltd | 無洗浄クリーム半田 |
JPH11274707A (ja) * | 1998-03-26 | 1999-10-08 | Matsushita Electric Ind Co Ltd | 半田プリコート方法 |
JPH11320176A (ja) * | 1998-05-18 | 1999-11-24 | Fujitsu Ltd | はんだペースト |
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JP4281207B2 (ja) * | 2000-03-22 | 2009-06-17 | 日油株式会社 | ロジン誘導体 |
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-
2006
- 2006-03-17 CN CNA2006800084551A patent/CN101142862A/zh active Pending
- 2006-03-17 CN CN2010102397667A patent/CN101894774B/zh not_active Expired - Fee Related
- 2006-03-17 WO PCT/JP2006/305352 patent/WO2006098426A1/ja active Application Filing
- 2006-03-17 US US11/886,533 patent/US7752749B2/en active Active
- 2006-03-17 JP JP2007508221A patent/JP4696110B2/ja not_active Expired - Fee Related
Patent Citations (3)
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JPH1032225A (ja) * | 1996-07-15 | 1998-02-03 | Toshiba Corp | 半導体チップの実装方法およびその装置 |
JP2000012630A (ja) * | 1998-06-26 | 2000-01-14 | Matsushita Electric Ind Co Ltd | ワークの熱圧着装置および熱圧着方法 |
JP2002050861A (ja) * | 2000-08-01 | 2002-02-15 | Matsushita Electric Ind Co Ltd | 常温接合装置及び方法 |
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JP2016219552A (ja) * | 2015-05-18 | 2016-12-22 | 新光電気工業株式会社 | 電子部品搭載装置及び電子部品の搭載方法 |
Also Published As
Publication number | Publication date |
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CN101142862A (zh) | 2008-03-12 |
CN101894774B (zh) | 2012-02-15 |
US20090049687A1 (en) | 2009-02-26 |
CN101894774A (zh) | 2010-11-24 |
US7752749B2 (en) | 2010-07-13 |
JP4696110B2 (ja) | 2011-06-08 |
JPWO2006098426A1 (ja) | 2008-08-28 |
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