Patent ID: 6906308

Claim:
A semiconductor light receiving device comprising: a plurality of semiconductor devices, which are disposed in a line on a surface of a supporting substrate and each of which is adapted to generate an electric signal depending on the intensity of incident light; an interconnecting optical waveguide formed such that the plurality of semiconductor devices are coupled by the interconnecting optical waveguide from one semiconductor device to an adjacent one so as to allow light to pass through the semiconductor devices from one semiconductor device to an adjacent one in a direction from a first stage toward a last stage; and an electric signal transmission line formed by a pair of conductors connected to the semiconductor devices, for transmitting an electric signal generated by the semiconductor devices, a first conductor of the pair of conductors extending in air above the supporting substrate between adjacent semiconductor devices, a second conductor of the electric signal transmission line being formed so as to be in direct contact with the surface of the supporting substrate, with air being disposed between the first conductor and the supporting substrate.