Photodetector and electronic apparatus

Abstract

[Object] To suppress color mixing of light. [Solution] A photodetector is provided, the photodetector including a pixel array unit in which a plurality of pixels including a first pixel including a plurality of photoelectric conversion units formed for a single microlens are arranged in a two-dimensional array shape, in which the first pixel is provided with a first separation portion separating the plurality of photoelectric conversion units, and the first separation portion separates a portion corresponding to a light concentration position of the microlens with an impurity region formed in a semiconductor substrate on which the plurality of photoelectric conversion units are formed, and separates a portion excluding the portion corresponding to the impurity region by embedding a substance in a trench formed in the semiconductor substrate. The present disclosure can be applied to, for example, a solid-state imaging device such as a CMOS-type image sensor.