摘要We perform 9MeV proton irradiation of a complementary metal oxide semiconductor (CMOS) image sensor at doses from 1×109 to 4×1010 cm-2. In general, the average brightness of dark output images increases with an increasing dose, and reaches the maximum at 1×1010 cm -2. The captured colour images become very blurry at 4×1010 cm-2. These can be explained by change of concentrations of irradiation-induced electron-hole pairs and vacancies in the various layers of CMOS image sensor calculated by the TRIM simulation programme with dose.
Abstract:We perform 9MeV proton irradiation of a complementary metal oxide semiconductor (CMOS) image sensor at doses from 1×109 to 4×1010 cm-2. In general, the average brightness of dark output images increases with an increasing dose, and reaches the maximum at 1×1010 cm -2. The captured colour images become very blurry at 4×1010 cm-2. These can be explained by change of concentrations of irradiation-induced electron-hole pairs and vacancies in the various layers of CMOS image sensor calculated by the TRIM simulation programme with dose.
[1] Eid E S, Chan T Y, Fossum E R, Tsai R H, Spagnuolo R, Deily J,Byers W B and Peden J C 2001 IEEE Trans. Nucl. Sci. 48 1796 [2] Bogaerts J, Dierickx B and Mertens R 2002 IEEE Trans. Nucl.Sci. 49 1513 [3] Meng X T and Kang A G 2001 Proc. Chin. Nucl. Soc. Conf. 671(in Chinese) [4] Meng X T and Kang A G 2002 Rare Metals 21 79 [5] Meng X T, Kang A G and You Z 2002 Jpn. J. Appl. Phys. I$\!$I41 L919 [6] Meng X T, Kang A G, Wang X Y and You Z 2003 Semicond. Sci.Technol. 18 L1