上海航天（中英文）2025，Vol.42Issue(4)：89-96,8.DOI:10.19328/j.cnki.2096-8655.2025.04.010
质子辐照星用CMOS图像传感器诱发RTS像素的试验研究
Experimental Study on RTS Pixels of CMOS Image Sensors Induced by Space Protons
摘要
Abstract
High-energy protons in space can cause performance degradation and pixel anomalies in complementary metal oxide semiconductor(CMOS)image sensors(CISs),significantly affecting space object detection.To gain a deeper understanding of the random telegraph signal(RTS)pixel issues induced by high-energy protons in CISs,in this paper,some proton irradiation tests are carried out on space-grade CISs,combined with several room-temperature and high-temperature annealing tests.The generation patterns of the RTS pixels are obtained,and the mechanisms underlying the RTS pixel formation are analyzed.The results show that the dark signals of the RTS pixels caused by protons can fluctuate across up to nine levels.The higher the number of levels,the fewer the number of RTS pixels,but the more frequent the transitions of the dark signals between levels become.This study suggests that the fluctuations in RTS pixel dark signals originate from the variations in defect configurations,with phosphorus-vacancy(VP)defects playing a significant role in the formation of RTS pixels.The findings provide a basis for the radiation hardening and on-orbit maintenance of CISs.关键词
CMOS图像传感器(CIS)/质子辐照/位移损伤效应/随机电报信号(RTS)/异常像素Key words
complementary metal oxide semiconductor(CMOS)image sensor(CIS)/proton irradiation/displacement damage effect/random telegraph signal(RTS)/anomalous pixel分类
社会科学引用本文复制引用
赵子韬,文林,李豫东,冯婕,刘炳凯,郭旗..质子辐照星用CMOS图像传感器诱发RTS像素的试验研究[J].上海航天（中英文）,2025,42(4):89-96,8.基金项目
国家自然科学基金资助项目(NSFC12175308,12305324) （NSFC12175308,12305324）
"天山英才"领军人才资助项目(2022TSYCLJ0042) （2022TSYCLJ0042）
新疆维吾尔自治区"天池英才"引进计划资助项目(2023000039) （2023000039）
新疆维吾尔自治区自然科学基金资助项目(2022D01B205) （2022D01B205）
