SEMICONDUCTOR IMAGE SENSOR

A BSI image sensor includes a substrate including a front side and a back side opposite to the front side, a plurality of pixel sensors, an isolation grid disposed in the substrate and separating the plurality of pixel sensors from each other, a reflective grid disposed over the isolation grid on th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: WANG, CHEN-JONG, HASHIMOTO, KAZUAKI, TSENG, CHIEN-HSIEN, CHOU, KENG-YU, CHIANG, WEIIEH
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:A BSI image sensor includes a substrate including a front side and a back side opposite to the front side, a plurality of pixel sensors, an isolation grid disposed in the substrate and separating the plurality of pixel sensors from each other, a reflective grid disposed over the isolation grid on the back side of the substrate, an a low-n grid disposed over the back side of the substrate and overlapping the reflective grid from a top view. A width of the low-n grid is greater than a width of the reflective grid.