SPLIT FLOATING DIFFUSION PIXEL LAYOUT DESIGN

A pixel array includes pixel circuits including a first pixel circuit having a first split floating diffusion receiving charge from first and third photodiodes through first and third transfer transistors, and a second split floating diffusion receiving the charge from second and fourth photodiodes through second and fourth transfer transistors. A first shared gate structure includes gates of first transfer transistors of first and second pixel circuits. A third shared gate structure includes gates of third transfer transistors of the first and second pixel circuits. A second shared gate structure includes gates of second transfer transistors of first and third pixel circuit. A fourth shared gate structure includes gates of fourth transfer transistors the first and third pixel circuits.