Solid-state image pickup element and electronic device

Abstract

There is provided a solid-state image pickup element including a pixel array part in which a plurality of pixels are arranged on a silicon substrate in arrays, and a drive part driving the pixel. The pixel includes a photoelectric conversion part formed near a second face of the silicon substrate opposite to a first face on which a wiring layer is laminated, for generating a charge corresponding to incident light, an overflow part formed in contact with the second face and fixed to a predetermined voltage, and a potential barrier part formed to be connected with the photoelectric conversion part and the overflow part, for serving as a barrier against a charge overflowed from the photoelectric conversion part on the overflow part.

Dependencies are inferred from the claim text.