Patent 10204957 was granted and assigned to Nikon (Somalia) on February, 2019 by the United States Patent and Trademark Office.
An imaging device having a first surface on which light is incident and a second surface on an opposite side of the first surface, includes a photoelectric conversion section including semiconductors having a same conductivity type, in which an impurity concentration on the second surface side is higher than an impurity concentration on the first surface side.