IMAGE SENSORS WITH HIGH DYNAMIC RANGE AND AUTOFOCUSING HEXAGONAL PIXELS

An image sensor may include phase detecting and autofocusing (PDAF) pixels. Each PDAF pixel may be hexagonal may be divided into two or more photodiode regions. A semi-spherical microlens may be formed over each PDAF pixel. Each PDAF pixel may be further divided into an inner sub-pixel portion and a...

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Bibliographische Detailangaben
Hauptverfasser:	CHAPMAN, Nathan Wayne, VAARTSTRA, Brian Anthony
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC COMMUNICATION TECHNIQUE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	An image sensor may include phase detecting and autofocusing (PDAF) pixels. Each PDAF pixel may be hexagonal may be divided into two or more photodiode regions. A semi-spherical microlens may be formed over each PDAF pixel. Each PDAF pixel may be further divided into an inner sub-pixel portion and an outer sub-pixel portion to provide high dynamic range (HDR) functionality. The outer sub-pixel portion may be further divided into two or more photodiode regions to provide depth sensing capability. A semi-toroidal microlens may be formed over each PDAF HDR pixel. Each PDAF HDR pixel may also have a snowflake-like shape or some irregular shape. Smaller interstitial pixels may be dispersed among the larger snowflake-like pixels.