IMAGE ACQUISITION DEVICE

IMAGE ACQUISITION DEVICE

An image sensor includes photodetection pixels formed inside and on top of a semiconductor substrate. An interconnection network coats a surface of the semiconductor substrate. The interconnection network includes a level of conductive vias in contact, by their lower surface, with the photodetection...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GAY, Laurent, SAIDI, Bilel, JOBLOT, Sylvain, GREGOIRE, Magali, VIANNE, Benjamin
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:An image sensor includes photodetection pixels formed inside and on top of a semiconductor substrate. An interconnection network coats a surface of the semiconductor substrate. The interconnection network includes a level of conductive vias in contact, by their lower surface, with the photodetection pixels. The conductive vias are made of doped polysilicon and have a heavier doping on their lower surface side than on their upper surface side.