Solid State Technology and Devices Seminar: Single-Photon Avalanche Diodes and their use in Time-of-Flight Applications

Seminar | February 22 | 1-2 p.m. |  Cory Hall

 Bruce Rae, Photonics Pixel Architect, STMicroelectronics in Edinburgh

 Electrical Engineering and Computer Sciences (EECS)

Single-photon avalanche diodes (SPADs) implemented in CMOS technologies offer a
unique combination of high photon sensitivity and ultra-fast timing accuracy, along
with the ability to be integrated alongside high-speed readout, signal processing and
power management circuitry. This talk will introduce a fully industrialized SPAD
device and its implementation and state-of-the-art performance in STMicroelectronics
advanced 40nm CMOS technology node. These have been used to produce fully
integrated, direct time-of-flight (ToF) products for the consumer market, positioning
STMicroelectronics as the worldwide number one supplier of ToF devices. Such
devices provide an all-in-one ToF solution, featuring on-chip SPAD array, signal
processing and laser driver alongside an in-module VCSEL. A view on how such
devices could be adapted for longer range applications such as LiDAR will also be
offered.

 dadevera@berkeley.edu, 510-642-3214