Image sensor

An image sensor includes: a shared pixel including two sub-pixels having a 1 * 2 structure, and sharing a floating diffusion region on each of the two sub-pixels through a metal wiring; unit pixels surrounding the floating diffusion region within the shared pixel, separated from each other by front deep trench isolation, and each including a photodiode; a transfer transistor adjacent to the floating diffusion region and on each of the unit pixels; a reset transistor and a selection transistor on a first unit pixel located in a first quadrant among the unit pixels; a conversion gain transistor on a second unit pixel located in a second quadrant among the unit pixels; and a source follower transistor on a third unit pixel located in a third quadrant and a fourth unit pixel located in a fourth quadrant among the unit pixels. 一种图像传感器包括：共享像素，包括具有1×2结构的两个子像素，并且通过金属布线共享位于所述两个子像素中的每一者上的浮置扩散区域；单位像素，在所述共享像素内围绕所述浮置扩散区域，通过正面深沟槽隔离彼此分开，并且各自包括光电二极管；转移晶体管，与所述浮置扩散区域邻近并且位于每个所述单位像素上；复位晶体管和选择晶体管，位于所述单位像素当中的位于第一象限中的第一单位像素上；转换增益晶体