Checker-pattern and shared two pixels LOFIC CMOS image sensors

Abstract

Two wide dynamic range CMOS image sensors with lateral overflow integration capacitor have been developed. A checker-pattern image sensor has achieved high area efficiency by placing the color filters and on-chip microlens along the direction at an angle of 45°. A shared two pixels image sensor has achieved small pixel pitch by introducing a lateral overflow gate in each pixel. The fabricated image sensors exhibit high full well capacity, low noise, wide dynamic range and high resolution performance.