Patent ID: 8947646
Filing Date: 2015-02-03
Classification: G01S,H01L

Abstract:
1. A photoelectric conversion element for detecting light and converting the light into photoelectrons, comprising: an embedded photodiode that is embedded in a semiconductor substrate; and a plurality of metal-oxide-semiconductor (MOS) diodes having electrodes formed on the semiconductor substrate with an insulator therebetween, wherein the embedded photodiode has a comb-like shape when viewed from an upper surface thereof, in which plural branch portions are branched from one portion, and the electrodes of the MOS diodes are nested, respectively, between the branch portions of the embedded photodiode when viewed from the upper surface thereof, wherein the potential under the electrodes of the MOS diodes is controlled such that the photoelectrons generated by photoelectric conversion at the MOS diodes migrate toward the embedded photodiode.