| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a joining method for an electrode core wire in which an operation time can be shortened and joining strength can be improved, and an electronic unit constituted by joining the electrode core wires. <P>SOLUTION: After thermosetting resin 8a containing solder particles 7a is supplied onto a substrate 2 so as to cover a plurality of electrodes 3, respective core wires 6 and electrodes are disposed above the substrate 2 vertically opposite each other, and a sheet member 11 is disposed above the core wires 6. Then the respective core wires 6 and thermosetting resin 8a are pressed and heated by a heat pressing tool 12 from above the sheet member 11 with the sheet member 11 interposed to thermally cure the thermosetting resin 8a and also fuse the solder particles 7a contained in the thermosetting resin 8a. Then the heat pressing tool 12 is put away from a heat cured body 8 of the thermosetting resin 8a, the electrodes 4 and core wires 6 are joined together with solder melts 7 formed by solidifying the melts (solder melts 7b) of the solder particles 7a, and the sheet member 11 is released from the heat cured body 8 lastly. <P>COPYRIGHT: (C)2009,JPO&INPIT |
