| 摘要 |
<p>This through wiring board is provided with a single substrate which has a first main surface and a second main surface, and with multiple feed-through wires which, provided inside of the substrate so as to connect the first main surface and the second main surface, have at least first portions extending in a direction other than the thickness direction of the substrate, second portions constituting one end of the feed-through wires, and third portions constituting the other end of the feed-through wires. The second portions are approximately perpendicular to the first main surface and are exposed at the first main surface, the third portions are approximately perpendicular to the second main surface and are exposed at the second main surface. The multiple feed-through wires have approximately the same length.</p> |
