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1 International Journal of Microelectronics and Computer Science

1 2015

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Silicon-on-Insulator technology for imaging and application to a switching photodetector

Abdo N., Sallin D., Koukab A., Estribeau M., Magnan P., Kayal M.

International Journal of Microelectronics and Computer Science

2015

Vol. 6, nr 4

136--141

This paper analyzes some advantages of Silicon-on-Insulator (SOI) based photodetectors for low light imaging. It shows that SOI based sensors not only solve the bulk carriers problem, it can also act as a very selective spectral filter by acting as a resonant cavity, which is useful in application with a very narrow spectrum of interest, such as bioluminescence imaging. The SOI implementation of a switching photodetector based with an hybrid MOS-PN structure is presented and its advantages in terms of dark current minimization and SNR improvement highlighted.