Details

Autor(en) / Beteiligte

• Goiffon, Vincent
• Rizzolo, Serena
• Corbiere, Franck
• Rolando, Sebastien
• Bounasser, Said
• Sergent, Marius
• Chabane, Aziouz
• Marcelot, Olivier
• Estribeau, Magali
• Magnan, Pierre
• Paillet, Philippe
• Girard, Sylvain
• Gaillardin, Marc
• Marcandella, Claude
• Allanche, Timothe
• Van Uffelen, Marco
• Casellas, Laura Mont
• Scott, Robin
• De Cock, Wouter

Titel

Total Ionizing Dose Effects on a Radiation-Hardened CMOS Image Sensor Demonstrator for ITER Remote Handling

Ist Teil von

• IEEE transactions on nuclear science, 2018-01, Vol.65 (1), p.101-110

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2018

Quelle

IEEE Electronic Library Online

Beschreibungen/Notizen

• Total ionizing dose effects are studied on a radiation hardened by design (RHBD) <inline-formula> <tex-math notation="LaTeX">256\times 256 </tex-math></inline-formula>-pixel CMOS image sensor (CIS) demonstrator developed for ITER remote handling by using X- and <inline-formula> <tex-math notation="LaTeX">\gamma </tex-math></inline-formula>-ray irradiations. The (color) imaging capabilities of the RHBD CIS are demonstrated up to 10 MGy (SiO 2 ), 1 Grad (SiO 2 ), validating the radiation hardness of most of the designed integrated circuit. No significant sensitivity (i.e., responsivity and color filter transmittance) or readout noise degradation is observed. The proposed readout chain architecture allows achieving a maximum output voltage swing larger than 1 V at 10 MGy (SiO 2 ). The influence of several pixel layout (the gate oxide thickness, the gate overlap distance, and the use of an in-pixel P+ ring) and manufacturing process parameters (photodiode doping profile and process variation) on the radiation-induced dark current increase is studied. The nature of the dark current draining mechanism used to cancel most of the radiation-induced degradation is also discussed and clarified.