研究目的
To develop and demonstrate a CMOS image sensor with low temporal read noise and high conversion gain for photoelectron-counting-level imaging.
研究成果
The developed CMOS image sensor achieves an extremely low read noise level of 0.27e? rms and a high conversion gain of 220 μV/e?, enabling photoelectron-counting-level imaging. This performance is suitable for scientific cameras and applications requiring both photon-counting-level sensitivity and sufficient dynamic range.
研究不足
The need for a high voltage over 20 V for FD reset and potential pixel uniformity issues due to global reset, which may introduce fixed pattern noise (FPN).