Radiation Effects in Pinned Photodiode CMOS Image Sensors: Pixel Performance Degradation Due to Total Ionizing Dose

V. Goiffon 1 Magali Estribeau 1 Olivier Marcelot 1 P. Cervantes 1 P. Magnan 1 M. Gaillardin 2 P. Martin-Gonthier 1 R. Molina 1 F. Corbiere 3 Sylvain Girard 4 P. Paillet 2 Claude Marcandella 2
1 ISAE-SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace
2 DAM/DIF - DAM Île-de-France
3 isae
ISAE-SUPAERO - Institut Supérieur de l'Aéronautique et de l'Espace
4 LHC - Laboratoire Hubert Curien [Saint Etienne]
Abstract : Several Pinned Photodiode (PPD) CMOS Image Sensors (CIS) are designed, manufactured, characterized and exposed biased to ionizing radiation up to 10 kGy(SiO$_2$ ). In addition to the usually reported dark current increase and quantum efficiency drop at short wavelengths, several original radiation effects are shown: an increase of the pinning voltage, a decrease of the buried photodiode full well capacity, a large change in charge transfer efficiency, the creation of a large number of Total Ionizing Dose (TID) induced Dark Current Random Telegraph Signal (DC-RTS) centers active in the photodiode (even when the Transfer Gate (TG) is accumulated) and the complete depletion of the Pre-Metal Dielectric (PMD) interface at the highest TID leading to a large dark current and the loss of control of the TG on the dark current. The proposed mechanisms at the origin of these degradations are discussed. It is also demonstrated that biasing (i.e., operating) the PPD CIS during irradiation does not enhance the degradations compared to sensors grounded during irradiation.
Keywords : Active pixel sensors CMOS image sensors Dark current Interface states Ionizing radiation Radiation effects Radiation hardening
Type de document :
Article dans une revue
IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2012, 59 (6), pp.2878 - 2887. 〈10.1109/TNS.2012.2222927〉
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https://hal-ujm.archives-ouvertes.fr/ujm-00768295
Contributeur : Sylvain Girard <>
Soumis le : vendredi 21 décembre 2012 - 10:51:36
Dernière modification le : jeudi 26 juillet 2018 - 12:09:45

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V. Goiffon, Magali Estribeau, Olivier Marcelot, P. Cervantes, P. Magnan, et al.. Radiation Effects in Pinned Photodiode CMOS Image Sensors: Pixel Performance Degradation Due to Total Ionizing Dose. IEEE Transactions on Nuclear Science, Institute of Electrical and Electronics Engineers, 2012, 59 (6), pp.2878 - 2887. 〈10.1109/TNS.2012.2222927〉. 〈ujm-00768295〉

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