Patent ID: 7825970

Claim:
A CMOS image sensor having a plurality of unit blocks, each unit block of the plurality of unit blocks comprising: a plurality of photodiodes having a hexagonal shape, the plurality of photodiodes forming a honeycomb structure; two unit pixels including, a first unit pixel on a k-th column and an n-th row in the honeycomb structure, “k” and “n” being positive integers, and a second unit pixel on the k-th column and an (n+2)-th row in the honeycomb structure; a floating diffusion shared by the two unit pixels; a first transfer transistor and a second transfer transistor, each between the floating diffusion and one of the photodiodes; a reset transistor connected to the floating diffusion; a drive transistor with a gate connected to the floating diffusion; and a selection transistor connected with the drive transistor in series.