At the core of the system, a sensor chip comprising 32 macro-pixels based on an array of single-photon avalanche diodes featuring an optical fill factor of 70% was fabricated in a 0.18-μm CMOS. The ...

Abstract: A 256 × 256 single-photon avalanche diode image sensor operating at 100kfps with fill factor of 61% and pixel pitch of 16 μm is reported. An all-nMOS 7T pixel allows gated operation down to ...