Photodetector involving a mosfet having a floating gate

Details Photodetector involving a mosfet having a floating gate Photodetector involving a mosfet having a floating gate

H - Electricity

01

L

H01L 31/112 (2006.01) H01L 31/113 (2006.01)

Patent

CA 2225226

A photodetector comprising a photoemissive surface capable of liberating photoelectrons. Photoelectrons are detected by a MOSFET having a floating gate, which is suitably charged before measurement in such a way that photoelectrons can cause a change in charge of the floating gate. The detected change indicates the amount of light received by the detector.

La présente invention concerne un photodétecteur comprenant une surface photoémettrice, capable de libérer des photoélectrons. Ceux-ci sont détectés par un transistor MOS à grille flottante, qui est chargé de manière appropriée, avant la mesure, de telle façon que les photoélectrons puissent produire un changement de la charge de la grille flottante. Le changement détecté indique la quantité de lumière reçue par le détecteur.

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