Patent ID: 7189962

Claim:
A semiconductor relay apparatus comprising: a substrate having at least two projections on one surface thereof, at least one first electrode formed on a projecting end portion of each projection and an electrode formed on one surface being electrically connected by an interconnection including a portion formed on a side surface of at least one of the projections, and an electrode formed on one surface and a second electrode formed on an other surface being electrically connected by a through-hole electrode; a light-emitting device placed between the projections; a light-receiving device placed such that a light-receiving portion opposes the light-emitting device, and bonded such that an electrode is connected to projecting end portion; output device bonded to the substrate; a light-transmitting resin which is filled between the light-emitting device and light-receiving device, and transmits light emitted from the light-emitting device; and a light-shielding resin which covers the light-transmitting resin, light-emitting device, and light-receiving device.