| 摘要 |
<p>Conductive wiring members, such as copper foil wiring (2a), (2b) printed on both sides of an insulating substrate (1), or the like, are connected by passing a conducting wire (7), (9) provided with a solder ball (8), (10) through a through-hole (3) in the vicinity of the conductive wiring members (2a), (2b), and then soldering the conductive wiring member (2a) or (2b) to the part of the conducting wire (7) or (9) on one surface by dip soldering or flow soldering, thereby melting the solder ball (8) to connect the part of the conducting wire (7) or (9) to the conductive wiring member (2a) or (2b) on the other surface. </p> |
