Photodetection apparatus

A photodetection apparatus, comprising:

• a mounting board;
• and
• an optical sensor device that includes a first surface on the mounting board side and a second surface on a side opposite to the mounting board, the optical sensor device being mounted on the mounting board in a planar direction, the mounting board being directly connected or adhered to the optical sensor device, and the mounting board and the optical sensor device being overlapped in the planar direction, wherein
• the optical sensor device includes:
• an optical sensor that includes a light receiving surface on the second surface of the optical sensor device;
• a signal processing circuit that is electrically connected to the optical sensor;
• and
• a lead frame that is provided on the second surface of the optical sensor device with respect to the signal processing circuit, and shields a surface of the signal processing circuit on the second surface of the optical sensor device,
• the mounting board has a conductive pattern that faces the signal processing circuit and shields a surface of the signal processing circuit on the side of the first surface of the optical sensor device,
• the lead frame includes an aperture for exposing the light receiving surface of the optical sensor to an outside,
• the lead frame and the optical sensor are not overlapped with each other in the planar direction,
• the lead frame and the signal processing circuit are overlapped with each other in the planar direction, and/or the optical sensor and the signal processing circuit are not overlapped with each other in the planar direction, and
• the lead frame is electrically connected to the conductive patter of the mounting board and entirely surrounds the optical sensor or the signal processing circuit.