Patent ID: 9343607
Filing Date: 2016-05-17
CPC Classification: H01L

Claim Text:
1. A demodulation pixel, comprising: a substrate for generating photocharges therein, the substrate including a demodulation part having a photogate region and integration regions, the substrate further including sense node regions; and a gate layer over the substrate, the gate layer comprising a plurality of alternating p-doped and n-doped regions forming a series of p-n junctions in parallel to a surface of the substrate over which the gate layer is disposed and arranged to have different respective potentials applied to the p-doped and n-doped regions so as to generate a potential distribution in the substrate for transferring the photocharges alternately to different ones of the integration regions, and from the integration regions to respective ones of the sense node regions, wherein the p- and n-doped regions of the gate layer define a photogate, a respective toggle gate having a double p-n arrangement at each side of the photogate, a respective integration gate adjacent each of the toggle gates, and a respective decoupling gate adjacent each of the integration gates.