| 摘要 |
<p> A composite module connecting to the exterior with a columnar conductor, wherein the state of connection with the exterior is visible. The composite module (1) is provided with: a wiring substrate (2) on which are mounted electronic components (3a, 3b); a plurality of external connection columnar conductors (4) disposed such that one end thereof is connected to the peripheral edge of one main surface of the wiring substrate (2); and a first resin layer (5a) covering the one main surface of the wiring substrate (2) and the columnar conductors (4), and layered on the wiring substrate (2); a notch section (5a1) being formed on the peripheral side surface of the first resin layer (5a) so that the side surfaces on the other end of the columnar conductors (4) are exposed. In such a configuration, the side surfaces at the other ends of the columnar conductors (4) connected to the exterior are exposed from the peripheral side surface of the first resin layer (5a); therefore, when the composite module (1) is connected to the exterior, the connection state of both connection parts can be seen from the side-surface side of the composite module (1).</p> |
