| 摘要 |
PROBLEM TO BE SOLVED: To provide a wiring board which reduces the possibility that a conductor layer is peeled from an insulation base material.SOLUTION: A wiring board 1 of the invention includes: an insulation base material 11; a heat radiation member 12 is provided in the insulation base material 11 and contains Cu; a conductor layer 13 which is provided in the insulation base material 11, has a connection part 13a connected with the heat radiation member 12 and an exposed part 13b partially exposed from the insulation base material 11, and contains Cu; and an auxiliary metal layer 14 which is provided in the insulation base material 11, contacts with a portion located between the connection part 13a of the conductive layer 13 and the exposed part 13b, and contains Cu. |
