A new 0.8μm CMOS image sensor with low RTS noise and high full well capacity

This is a report of a new 0.8μm, 32 mega pixel CMOS image sensor (CIS) with OmniVision secondgeneration (Gen2) stacking technology. In this work, we re-designed a pixel layout and developed a vertical transfer gate (VTG) to achieve low noise and high full well capacity (FWC). The sensor achieved a total read noise of 1.2erms and a linear FWC of 5000e-. The random telegraph signal (RTS) noise was reduced 70% compared with that of a 0.9μm pixel. Other pixel performance improvements are also realized in this work.