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Open AccessArticle

1T Pixel Using Floating-Body MOSFET for CMOS Image Sensors

1
Institut des Nanotechnologies de Lyon (INL), CNRS UMR5270, Université Claude Bernard Lyon1, 43 Bd du 11 Novembre 1918, 69622 Villeurbanne Cedex, France
2
STMicroelectronics, Front-End Technology and Manufacturing (FTM), 850 rue Jean Monnet, 38926 Crolles Cedex, France
*
Author to whom correspondence should be addressed.
Sensors 2009, 9(1), 131-147; https://doi.org/10.3390/s90100131
Received: 31 October 2008 / Revised: 9 December 2008 / Accepted: 30 December 2008 / Published: 7 January 2009
(This article belongs to the Special Issue Image Sensors 2009)
We present a single-transistor pixel for CMOS image sensors (CIS). It is a floating-body MOSFET structure, which is used as photo-sensing device and source-follower transistor, and can be controlled to store and evacuate charges. Our investigation into this 1T pixel structure includes modeling to obtain analytical description of conversion gain. Model validation has been done by comparing theoretical predictions and experimental results. On the other hand, the 1T pixel structure has been implemented in different configurations, including rectangular-gate and ring-gate designs, and variations of oxidation parameters for the fabrication process. The pixel characteristics are presented and discussed. View Full-Text
Keywords: 1T pixel; CMOS image sensors (CIS); floating-gate MOSFET; modeling; rectangular-gate pixel; ring-gate pixel 1T pixel; CMOS image sensors (CIS); floating-gate MOSFET; modeling; rectangular-gate pixel; ring-gate pixel
MDPI and ACS Style

Lu, G.-N.; Tournier, A.; Roy, F.; Deschamps, B. 1T Pixel Using Floating-Body MOSFET for CMOS Image Sensors. Sensors 2009, 9, 131-147. https://doi.org/10.3390/s90100131

AMA Style

Lu G-N, Tournier A, Roy F, Deschamps B. 1T Pixel Using Floating-Body MOSFET for CMOS Image Sensors. Sensors. 2009; 9(1):131-147. https://doi.org/10.3390/s90100131

Chicago/Turabian Style

Lu, Guo-Neng; Tournier, Arnaud; Roy, François; Deschamps, Benoît. 2009. "1T Pixel Using Floating-Body MOSFET for CMOS Image Sensors" Sensors 9, no. 1: 131-147. https://doi.org/10.3390/s90100131

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