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Rizzolo, Serena; Goiffon, Vincent; Corbiere, Franck; Molina, Romain; Chabane, Aziouz; Girard, Sylvain; Paillet, Philippe; Magnan, Pierre; Boukenter, Aziz; Allanche, Timothe; Muller, Cyprien; Monsanglant-Louvet, Celine; Osmond, Melanie; Desjonqueres, Hortense; Mace, Jean-Reynald; Burnichon, Pierre; Baudu, Jean-Pierre; Plumeri, Stephane
IEEE transactions on nuclear science, 01/2019, Letnik: 66, Številka: 1Journal Article
The impact of the manufacturing process on the radiation-induced degradation effects observed in CMOS image sensors (CISs) at the MGy total ionizing dose (TID) levels is investigated. Moreover, the vulnerability of the partially pinned PHDs at moderate-to-high TIDs is evaluated for the first time to our knowledge (PHD stands for "photodiode"). It is shown that the 3T-standard partially pinned PHD has the lowest dark current before irradiation, but its dark current increases to ~1 pA at 10 kGy(SiO 2 ). Beyond 10 kGy(SiO 2 ), the pixel functionality is lost. The comparison between several CIS technologies points out that the manufacturing process impacts the two main radiation-induced degradations: the threshold voltage shift of the readout chain MOSFETs and the dark current increase. For all the tested technologies, 1.8-V MOSFETs exhibit the lower threshold voltage shift, and the nMOSFETs are the most radiation tolerant. Among all the tested devices, 1.8-V sensors achieve the best dark current performance. Several radiation-hardening-by-design solutions are evaluated at the MGy level to improve further the understanding of CIS radiation hardening at extreme TID.
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Povezave do osebnih bibliografij avtorjev | Povezave do podatkov o raziskovalcih v sistemu SICRIS |
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Vir: Osebne bibliografije
in: SICRIS
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