CMOS image sensor pixel

The utility model discloses a CMOS image sensor pixel which comprises a first photodiode and a second photodiode. The first photodiode and the second photodiode are respectively connected with a first charge transfer transistor and a second charge transfer transistor. The first charge transfer trans...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: GUO TONGHUI, KUANG ZHANGQU
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The utility model discloses a CMOS image sensor pixel which comprises a first photodiode and a second photodiode. The first photodiode and the second photodiode are respectively connected with a first charge transfer transistor and a second charge transfer transistor. The first charge transfer transistor and the second charge transfer transistor share a floating active region. A first micro lens and a second micro lens are respectively arranged above the first photodiode and the second photodiode. A color filter is arranged between first and second photodiodes and first and second micro lenses. The pixel light sensitivity of strong lighting is compressed. The pixel light sensitive dynamic range is expanded. The defect of small dynamic range of a linear image sensor can be overcome. More image details of a high lighting environment are collected.