Patent ID: 9160955
Filing Date: 2015-10-13
Classification: H01L,H04N

Abstract:
1. A solid-state imaging device comprising: a plurality of pixels in an arrangement, each of the pixels including a photoelectric conversion element and pixel transistors, wherein a channel width of a transfer gate in a transfer transistor included in the pixel transistors is formed to be larger on a side of a floating diffusion region than on a side of the photoelectric conversion element, wherein the transfer gate has a substantially trapezoid shape and a portion of at least two sides of the transfer gate is disposed over the floating diffusion region, and the transfer gate is disposed on a corner portion of the photoelectric conversion element and has a convex shape on the side of the floating diffusion region, wherein the floating diffusion region includes a portion in which, in a direction parallel to a straight line connecting between both end portions of a position where the floating diffusion region is associated with the transfer gate, a length between end portions of the floating diffusion region other than the position where the floating diffusion region is associated with the transfer gate increases from the straight line connecting between the both end portions toward the side of the floating diffusion region, wherein a set of a plurality of photoelectric conversion elements and a plurality of transfer transistors configured to readout signal charges of the respective photoelectric conversion elements shares other pixel transistors, wherein the other pixel transistors include a reset transistor, an amplifier transistor, and a selection transistor, and wherein the set of the plurality of photoelectric conversion elements and the plurality of transfer transistors is arranged horizontally and vertically in an orthogonal coordinate system.