| 摘要 |
PURPOSE:To prevent electrical short caused by the bridging of solder over an insulating body section by making the insulating body section of a front/back foil connecting part thicker than conductive sections at the both sides of the part. CONSTITUTION:The insulating body section 11 of a front/back foil connecting part 1 is made thicker than conductive sections 3 and 4 at the both sides of the part. When the insulating body section 11 is thus made thick, the insulating body section 11 prevents solder from flowing to the flow direction of its own first at the time of soldering carried out on the surfaces of a double sided substrate 5, this thereby does not allow solder 11 to flow straight ahead as it does, but allows it to flow downward, or allows it to be pushed to the side of the insulating body section 11. This therefore prevents solder from directly reaching the conductive section 4 from the conductive section 3 side. By this constitution, solderability can thereby be improved-when a solder vessel passes through a soldering section, and the conductive section 3 can therefore be prevented from being shortcircuited to the conductive section 4. |
