WORKSHOP PAPER
A Study on Two Step Reset LOFIC Pixel to Reduce SNR Gap
Kazuki Tatsuta1, Ai Otani1, Shunsuke Okura1, Ken Miyauchi2, Han Sangman2, Hideki Owada2, Isao Takayanagi2
1Research Organization of Science and Engineering Ritsumeikan University, 1-1-1 Noji-Higashi, Kusatsu, Shiga, 525-8577, Japan
2Brillnics Japan Inc., 6-21-12 Minami-Oi, Shinagawa-ku, Tokyo, 140-0013 Japan

Abstract

This paper presents a pixel circuit that reduces the Low Conversion Gain (LCG) reset noise without adding additional transistors to the pixel for High Dynamic Range (HDR) CMOS image sensors using a Lateral Overflow Integration Capacitor (LOFIC). The proposed Two Step Reset (TSR) LOFIC-CIS aims to reduce the SNR gap between High Conversion Gain (HCG) and LCG modes, contributing to improved imaging under varying illumination conditions.
Publisher: IISS (Int. Image Sensors Society)
Year: 2023
Workshop: IISW
URL: https://doi.org/10.60928/arbs-kwni
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Keywords

LOFIC pixel, SNR gap, High Dynamic Range,

References

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