Solid-state image pickup element and driving method thereof

摘要

A solid-state image pickup element includes: (A) a light receiving/charge accumulating region formed in a semiconductor layer and formed by laminating M (where M≧2) light receiving/charge accumulating layers; (B) a charge outputting region formed in the semiconductor layer; (C) a depletion layer forming region formed of a part of the semiconductor layer, the part of the semiconductor layer being situated between the light receiving/charge accumulating region and the charge outputting region; and (D) a control electrode region for controlling a state of formation of a depletion layer in the depletion layer forming region, wherein the solid-state image pickup element further includes a light receiving/charge accumulating layer extending section extending from each light receiving/charge accumulating layer to the depletion layer forming region.