| 摘要 |
<p>PROBLEM TO BE SOLVED: To solve the problem that a lead terminal cannot be strongly brazed to a second wiring layer that is electrically connected to a first wiring layer. SOLUTION: In the wiring board 6 where the first wiring layer 2 and the second wiring layer 3 where a metal member 8 is to be brazed are formed on the surface of an insulating substrate 1, a plated layer is deposited on the surface of the first and second wiring layers 2 and 3, and the first and second wiring layers 2 and 3 are electrically connected via an inner wiring layer 4 that is formed in the insulating substrate 1.</p> |
