| 摘要 |
[Problem] To provide a wiring board in which the reliability of connections between through conductors and wiring conductors is improved. [Solution] The wiring board (1) has: an insulating base (11) made from a ceramic; a recess part (12) provided to the side surface of the insulating base (11) so as to continue to one of the principal surfaces of the insulating base (11); an interior wiring conductor (13a) provided to the interior of the insulating base (11); an exterior wiring conductor (13b) provided to one of the principal surfaces of the insulating base (11); a recess wiring conductor (13c) provided in the recess part (12), the recess wiring conductor (13c) being joined to the interior wiring conductor (13a) and the exterior wiring conductor (13b); and a through conductor (14) provided in the insulating base (11), the through conductor (14) electrically connecting the interior wiring conductor (13a) and the exterior wiring conductor (13b) to each other. When the insulating base (11) is viewed in a plan view from the side of one of the principal surfaces, the recess part (12) extends in one direction, and the through conductor (14) is provided to the vicinity of the end part of the recess part (12). |
