4T-4S STEP & REPEAT UNIT PIXEL AND IMAGE SENSOR INCLUDING THE UNIT PIXEL

摘要

Disclosed are a 4T-4S step & repeat unit pixel used in an image sensor and an image sensor having the same. The 4T-4S step & repeat unit pixel has four diffusion area patterns for photodiodes and three diffusion area patterns for an image signal conversion circuit. An aperture ratio of the image sensor increases in maximum by using four photodiodes arranged in a diagonal direction from each other and three diffusion area patterns arranged between the photodiodes near their edges.