In order to reduce the capacitance of a light-receiving element, the
present invention provides a light-receiving element which includes a
first semiconductor region of the first conductivity type, a second
semiconductor region of the second conductivity type, provided on the
first semiconductor region, a third semiconductor region of the first
conductivity type, provided between the second semiconductor region and
an insulating film and an electrode region of the second conductivity
type, provided in the second semiconductor region where the third
semiconductor region is absent on and above the second semiconductor
region, and connected to an anode or cathode electrode consisting of a
conductor.