Photodetector

A light detection device, comprising:

• a semiconductor substrate having a light receiving region where a plurality of cells are arranged in a first direction;
• a plurality of pad electrodes which are arranged on the semiconductor substrate and each of which is electrically connected to the cell corresponding thereto among the plurality of cells;
• and
• a plurality of wires each of which is connected to the pad electrode corresponding thereto among the plurality of pad electrodes,
• wherein a stitch bond of a corresponding wire among the plurality of wires is formed on each of the pad electrodes,
• a distance between each of the pad electrodes and the cell corresponding to the pad electrode is smaller than a distance between the pad electrodes connected to mutually different cells of the cells,
• the plurality of pad electrodes are arranged in a first region and a second region that are spaced apart from each other with the light receiving region interposed therebetween in a second direction crossing the first direction,
• the plurality of cells include a plurality of cell groups including a first cell and a second cell adjacent to each other,
• the pad electrode corresponding to the first cell is arranged in the first region, and
• the pad electrode corresponding to the second cell is arranged in the second region.