ㅇ 제목 : SPAD Sensors fabricated in standard CMOS: Technology and Applications

ㅇ 장소 : ETRI 3동 119호 회의실

Single-photon avalanche diode (SPAD) sensors are very useful tools in a large number of applications, including light detection and ranging (LiDAR), biomedical, and quantum applications. Examples are advanced driver-assistance system (ADAS), autonomous vehicle, drone, robot, rover, space navigation, 3D face and gesture recognition, TOF positron emission tomography (TOF PET), fluorescence-lifetime imaging microscopy (FLIM), super-resolution microscopy, near-infrared imaging or optical tomography (NIRI/NIROT), quantum key
distribution (QKD), quantum random number generator (QRNG), quantum cryptography, etc.
SPAD sensors fabricated in standard CMOS technology have been receiving a great amount of attention from both scientific and industrial communities as a key technology for those applications described above, because they can provide single-photon detection and photon-counting capability together with very useful functionalities such as photon time-of-flight evaluation and histogram processing, based on the digital nature of their output,
extremely high gain from the Geiger-mode operation, and integrated CMOS circuitry, as well as the most cost-effective, high-volume solution. Recently, more and more advanced CMOS technologies have become available for the fabrication of SPAD sensors, including technology nodes smaller than 65 nm, CMOS image sensor (CIS) processes, processes providing image sensor and/or SPAD dedicated layers, as well as 3D-stacking technologies. The latter in particular are attracting significant attention because they hold the promise for better sensitivity and more functionality per pixel. This talk will cover fundamentals of the CMOS SPAD sensors, applications based on the sensors, and cutting-edge technologies.