IMAGE SENSOR AND ELECTRONIC DEVICE INCLUDING THE SAME

The present disclosure provides image sensor and electronic devices including image sensors. In some embodiments, the image sensor includes a shared pixel including four subpixels that have a 2×2 structure sharing a floating diffusion (FD) region, a plurality of unit pixels surrounding the FD region and arranged apart from one another through a deep trench isolation, a first transfer transistor disposed adjacent to the FD region in each of the plurality of unit pixels, a reset transistor provided in a first unit pixel of the plurality of unit pixels and disposed at an outer portion of the shared pixel, and a source follower transistor provided in a second unit pixel and disposed at the outer portion of the shared pixel. The FD region is coupled, through a metal wiring, to a source region of the reset transistor and a gate of the source follower transistor.