US Patent 10353057 Photodetector and LIDAR system including the photodetector

A photodetector according to an embodiment includes: a first semiconductor layer of a first conductivity type, including a first surface and a second surface that is opposite to the first surface; a second semiconductor layer of a second conductivity type, disposed on the second surface; and at least one photo-sensing device including a region in the first semiconductor layer, a region in the second semiconductor layer, and a first electrode disposed in a first region of the first surface.