| 摘要 |
PURPOSE: To obtain a wiring board easy and cheap to be manufactured and moreover having little danger of causing a crack to solder and allowing to resist thermal stress. CONSTITUTION: In a wiring board where wiring of a conductive material 3 is laid on a wiring board 1 having a lead wire insertion hole 2, a lead wire 4a of the electric parts 4 inserted into the lead wire insertion hole 2 of the wiring board 1 is fixed to the wiring board 1 by solder 5, further, the lead wire 4a is made to be connected to the conductive material 3 through solder 5, the conductive material 5 is provided ranging from the side of a wiring surface 1a of the wiring board 1 to the halfway part of the inside surface of the lead wire insetion hole 2.
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