Description
CMOS sensors are today ubiquitous, from cellphones to advanced cameras. Since a few years, they are also used as part of radiation instrumentation equipment. However, here CMOS sensors must have unique features, such as sparse read-out and Megaframe/s readout capabilities and radiation hardness. In this area, state-of-the art research is conducted that explore the possibility of using charge collection by drift, while keeping sensor capacitance and noise to a minimum. Several applications require also very good timing accuracy, well below the 100 ps range. Novel device topology with internal gain working in proportional rather than in Geiger mode are explored, together with new front-end topologies.