摘要:
In a mounting method for mounting a bump-equipped electronic component 5 with a plurality of metallic bumps 6 on a substrate 2 with a plurality of electrodes 3, during the process of connecting the metallic bumps 6 to the electrodes 3 by aligning the metallic bumps with the electrodes 3 with thermosetting resin 4 intervening between the electronic component 5 and substrate 2 and by pressing the electronic component 5 to the substrate 2 while exerting ultrasonic oscillation, heat and applied pressure on the electronic component 5, all of the metallic bumps 6 are brought into contact with the electrodes so that they are electrically connected to each other, and when some of the metallic bumps are metallic-bonded to the electrodes, ultrasonic oscillation is stopped. Thus, it is possible to prevent occurrence of damage owing to the excessive exertion of ultrasonic oscillation on the metallic bumps which have precedently started their metallic-bonding.
摘要:
In a mounting method for mounting a bump-equipped electronic component 5 with a plurality of metallic bumps 6 on a substrate 2 with a plurality of electrodes 3, during the process of connecting the metallic bumps 6 to the electrodes 3 by aligning the metallic bumps with the electrodes 3 with thermosetting resin 4 intervening between the electronic component 5 and substrate 2 and by pressing the electronic component 5 to the substrate 2 while exerting ultrasonic oscillation, heat and applied pressure on the electronic component 5, all of the metallic bumps 6 are brought into contact with the electrodes so that they are electrically connected to each other, and when some of the metallic bumps are metallic-bonded to the electrodes, ultrasonic oscillation is stopped. Thus, it is possible to prevent occurrence of damage owing to the excessive exertion of ultrasonic oscillation on the metallic bumps which have precedently started their metallic-bonding.
摘要:
An electronic element unit (1) includes an electronic element (2) having a plurality of connecting terminals (12) on a lower surface thereof, a circuit board (3) having a plurality of electrodes (22) corresponding to the connecting terminals (12) on an upper surface thereof. The connecting terminals (12) and the electrodes (22) are connected by solder bumps (23), and the electronic element (2) and the circuit board (3) are partly bond by a resin bond part (24) made of a thermosetting material of a thermosetting resin, and a metal powder (25) is included in the resin bond parts (24) in a dispersed state. The metal powder (25) has a melting point lower than a temperature at which the resin bond parts (24) are heated when a work (a repairing work) is carried out for removing the electronic element (2) from the circuit board (3).
摘要:
Disclosed are an electronic component mounting system and an electronic component mounting method capable of reducing the space occupied by equipment and equipment cost and ensuring high connection reliability. An electronic component mounting system (1) includes a solder printing device (M1), a coating/inspection device (M2), a component mounting device (M3), a bonding material supply/substrate mounting device (M4), and a reflow device (M5). The electronic component mounting system (1) mounts an electronic component on a main substrate (4) and connects a module substrate (5) to the main substrate (4). A cream solder is printed on the main substrate (4) to mount an electronic component, a bonding material in which solder particles are contained in thermosetting resin is supplied to a first connection portion of the main substrate (4), and a second connection portion of the module substrate (5) is landed on the first connection portion through the bonding material. Thereafter, the main substrate (4) is carried in the reflow device (M5) and heated in the same reflow step to solder-bond the electronic component onto the main substrate (4) and to bond the second connection portion of the module substrate (5) and the first connection portion of the main substrate (4) together by the bonding material.
摘要:
A method of bonding electrodes and core wires capable of shortening the operation time and improving the bonding strength and an electronic unit formed by bonding the electrodes and the core wires are intended to be provided.After supplying a thermosetting resin 8a incorporated with solider particles 7a so as to cover a plurality of electrodes 3 on a substrate 2, arranging each of core wires 6 while opposing vertically to each of the electrodes 3 above the substrate 2, locating a sheet member 11 above the core wires 6, hot pressing each of the core wires 6 and the thermosetting resin 8a by way of the sheet member 11 by hot press bonding tool 12 from above the sheet member 11 to thermally cure the thermosetting resin 8a and melt the solder particles 7a contained in the thermosetting resin 8a, detaching the hot press bonding tool 12 from the thermally cured product 8 of the thermosetting resin 8a, bonding the core wires 6 and the electrodes 3 by the solidification product 7 of solder formed by solidification of a molten product of the solder particles (molten solder 7b) and, finally, peeling the sheet member 11 from the thermally cured product 8.
摘要:
After disposing bonding material including thermosetting resin containing solder particles in a region that covers at least land part on an upper surface of base wiring layer and holding electronic component by base wiring layer by positioning terminal part with respect to land part and adhesively bonding at least terminal part to bonding material that covers at least land part, bonding material is semi-cured by heating. Therefore, warp deformation of the base wiring layer can be suppressed and bonding reliability can be secured.
摘要:
A method of bonding electrodes and core wires capable of shortening the operation time and improving the bonding strength and an electronic unit formed by bonding the electrodes and the core wires are intended to be provided.After supplying a thermosetting resin 8a incorporated with solider particles 7a so as to cover a plurality of electrodes 3 on a substrate 2, arranging each of core wires 6 while opposing vertically to each of the electrodes 3 above the substrate 2, locating a sheet member 11 above the core wires 6, hot pressing each of the core wires 6 and the thermosetting resin 8a by way of the sheet member 11 by hot press bonding tool 12 from above the sheet member 11 to thermally cure the thermosetting resin 8a and melt the solder particles 7a contained in the thermosetting resin 8a, detaching the hot press bonding tool 12 from the thermally cured product 8 of the thermosetting resin 8a, bonding the core wires 6 and the electrodes 3 by the solidification product 7 of solder formed by solidification of a molten product of the solder particles (molten solder 7b) and, finally, peeling the sheet member 11 from the thermally cured product 8.
摘要:
The invention intends to provide an electronic component mounting structure where the repairability and the impact resistance are combined. In an electronic component mounting structure, a plurality of solder balls disposed in plane between an electronic component and a substrate is melted to bond the electronic component and the substrate and a resin of which tensile elongation after the curing is in the range of 5 to 40% is filled in portions that are gaps between the electronic component and the substrate and correspond to at least four comers of the electronic component to reinforce. Since the reinforcement area is small, the repairability such as the easy removability of the resin and the reusability of the substrate are excellent, the resin itself is allowed to expand to the impact at the drop to play a role of reinforcing the bonding without breaking, and the impact resistance is excellent as well.
摘要:
A method for connecting a first terminal array 6 provided in a connection portion 5 of a first electric component and a second terminal array 8 provided in a connection portion 7 of a second electric component to each other in such a manner that electric continuity is established between them has two steps, that is, a step of tentatively fixing the two connection portions 5 and 7 with each other whose terminal arrays 6 and 8 are positioned with respect to each other by soldering them with solder particles 3 using a paste-like anisotropic conductive adhesive 1 in which the solder particles 3 and conductive particles 4 are dispersed in a thermosetting resin 2, and a step of finally fixing the two connection portions 5 and 7 with each other with the thermosetting resin 2 that has been set thermally. This prevents positional deviation from occurring between the two terminal arrays 6 and 8 during a transport from a tentative fixing apparatus to a final fixing apparatus.
摘要:
In a semiconductor device provided with a thinned semiconductor element, the present invention intends to provide a semiconductor device in which a damage of a semiconductor element is inhibited from occurring in the neighborhood of an outer periphery and thereby the reliability can be secured. In order to realize the object, the invention relates to a semiconductor device in which to a rear surface of a thinned semiconductor element on a front surface of which a plurality of external connection terminals is formed, a plate higher in the rigidity than the semiconductor element is adhered with a resin binder, wherein an outer shape of the plate is made larger than that of the semiconductor element, and the resin binder covers a side face of the semiconductor element to form a reinforcement portion for reinforcing a periphery of the semiconductor element.