| 摘要 |
PROBLEM TO BE SOLVED: To prevent protrusion of an underfill and roll-up formation of bubbles by bonding and fixing a mounting member (area terminal package) to a printed board with the underfill. SOLUTION: As shown in Figures (A1), (A2), a through-hole 5a is formed in advance on a printed board 5. As shown in figure (B), an area terminal package 1 is positioned below the printed board 5, and the through-hole 5a is covered from the lower side. When an underfill 4 as an adhesive agent having fluidity is poured from the through-hole 5a, the underfill 4 flows into a gap between the area terminal package 1 and the printed board 5 and the gap is filled with the underfill 4 and hardened. |
