Microlenses for semiconductor device with single-photon avalanche diode pixels

An imaging device may include a plurality of single-photon avalanche diode (SPAD) pixels. The SPAD pixels may be overlapped by square toroidal microlenses to direct light incident on the pixels onto photosensitive regions of the pixels. The square toroidal microlenses may be formed as first and seco...

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Bibliographische Detailangaben

Hauptverfasser:	Boettiger, Ulrich, Sulfridge, Marc Allen, Lee, Byounghee
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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