Optical receiver

An optical receiver, comprising:

• a light receiving element having a semiconductor layer in which a light receiving region is provided, a first conductive film electrically connected to a cathode electrode provided on a main surface of the semiconductor layer, a second conductive film provided on a side opposite to the main surface of the semiconductor layer and electrically connected to the first conductive film through a conductor, and an anode pattern electrically connected to an anode electrode provided on the main surface of the semiconductor layer;
• a capacitor having a dielectric layer, and a first metal film and a second metal film provided so as to vertically interpose the dielectric layer therebetween;
• a transimpedance amplifier having a first pad electrically connected to the first conductive film through a first wire and a second pad electrically connected to the anode pattern through a second wire;
• and
• a base having a main surface on which the light receiving element and the transimpedance amplifier are mounted,
• wherein an electrostatic capacitance between the second conductive film and the main surface of the base is larger than a parasitic capacitance between the first conductive film and the second conductive film, and
• an inductance of the conductor is smaller than an inductance of the first wire.