Checkered White-RGB Color LOFIC CMOS image sensor

Abstract

We succeeded in developing a checkered White-RGB color CMOS image sensor based on a lateral overflow integration capacitor (LOFIC) architecture. The LOFIC CMOS image sensor with a 1/3.3-inch optical format, 1280^H × 480^V pixels, 4.2-µm effective pixel pitch along with 45° direction was designed and fabricated through 0.18-µm 2-Poly 3-Metal CMOS technology with buried pinned photodiode (PD) process. The image sensor has achieved about 108-µV/ē high conversion gain and about 102-dB dynamic range (DR) performance in one exposure.