RD50-MPW3: A fully monolithic digital CMOS sensor for future tracking detectors

TL;DR

The paper presents the design and initial testing of RD50-MPW3, a monolithic CMOS sensor aimed at future high-energy physics experiments like HL-LHC and FCC-hh.

Contribution

It introduces the latest RD50-MPW3 prototype with new structures and discusses its design, features, and initial laboratory characterization.

Findings

Successful initial laboratory tests of the sensor

Implementation of new digital readout structures

Potential suitability for future high-luminosity experiments

Abstract

The CERN-RD50 CMOS working group develops the RD50-MPWseries of monolithic high-voltage CMOS pixel sensors for potential use in future high luminosity experiments such as the HL-LHC and FCC-hh. In this contribution, the design of the latest prototype in this series, RD50-MPW3, is presented. An overview of its pixel matrix and digital readout periphery is given, with discussion of the new structures implemented in the chip and the problems they aim to solve. The main analog and digital features of the sensor are already tested and initial laboratory characterisation of the chip is presented.