Overview of CMOS sensors for future tracking detectors

TL;DR

Depleted CMOS sensors are promising for future high-luminosity collider tracking detectors due to their integrated design, radiation tolerance, cost-effectiveness, and ongoing advancements by CERN RD50.

Contribution

This paper provides a comprehensive overview of CMOS sensor technology and summarizes recent developments within the CERN RD50 collaboration.

Findings

CMOS sensors enable reduced noise and higher signal sensitivity.

They are suitable for high radiation environments with high depletion voltage.

Recent advancements improve performance and cost-efficiency.

Abstract

The depleted CMOS sensors are emerging as one of the main candidate technologies for future tracking detectors in high luminosity colliders. Its capability of integrating the sensing diode into the CMOS wafer hosting the front-end electronics allows for reduced noise and higher signal sensitivity. They are suitable for high radiation environments due to the possibility of applying high depletion voltage and the availability of relatively high resistivity substrates. The use of a CMOS commercial fabrication process leads to their cost reduction and allows faster construction of large area detectors. A general perspective of the state of the art of these devices will be given in this contribution as well as a summary of the main developments carried out with regard to these devices in the framework of the CERN RD50 collaboration.