| 摘要 |
PROBLEM TO BE SOLVED: To provide a flexible printed board connecting structure which is capable of easily aligning a flexible printed board with another printed board and realizing the automatic assembly of a composite board composed of the printed boards easily and surely at a low cost. SOLUTION: A through-hole 5 is bored in the land 4 of a flexible printed board 1, and the diameter of the through-hole 5 is set smaller than those of through-holes bored in a cover layer and a base layer. A protuberant solder layer 8 is previously formed on a solder land 7 formed on another printed board 2, and the printed boards 1 and 2 are positioned by engaging and aligning the tip of the solder layer 8 with the through-hole 5. After the boards 1 and 2 are positioned, the solder layer 8 is melted by heating so as to feed solder through the through-hole 5 and to be soldered to the solder land 4. |
