| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring board in which fillet can be easily checked. SOLUTION: A lead terminal 35 is positioned on a land 21 and is automatically thermally bonded thereto by a tool. The long side of the lead terminal 35 crosses the expanded portion 27 and contracted portion 34 of the land 21. Both ends of depressed portion 25 and projected portion 32 of the land terminal 21 where the lead terminal 35 is inside the land 21 and the land 21 are electrically mechanically connected to each other with fillet formed by solder. By forming the depressed portion 25 and the projected portion 32, even if the position of the tool is shifted, the expanded portion 21 and the contracted portion 34 cross the long side of the lead terminal 35 and the fillet 36 where the lead terminal 35 is positioned on the land 21 can be easily checked.
|
