An optical sensor with an upper surface having a photoelectric conversion device area and connection pads connected to the photoelectric conversion device area thereof; a semiconductor structure which has a plurality of electrodes for external connection; an insulating layer formed on the periphery of the semiconductor structure; and a first wiring formed on at least one of the semiconductor structure and the optical sensor and connecting at least one of the electrodes for external connection of the semiconductor structure to one of the connection pads of the optical sensor.