Irradiation study of a fully monolithic HV-CMOS pixel sensor design in AMS 180 nm

Abstract

High-Voltage Monolithic Active Pixel Sensors (HV-MAPS) based on the 180 nm HV-CMOS process have been proposed to realize thin, fast and highly integrated pixel sensors. The MuPix7 prototype, fabricated in the commercial AMS H18 process, features a fully integrated on-chip readout, i.e. hit-digitization, zero suppression and data serialization. It is the first fully monolithic HV-CMOS pixel sensor that has been tested for the use in high irradiation environments like HL-LHC. We present results from laboratory and test beam measurements of MuPix7 prototypes irradiated with neutrons (up to $5.0\cdot 10^{15}{\mathrm{n}}_{\mathrm{eq}}/c{\mathrm{m}}^2$) and protons (up to $7.8\cdot 10^{15}\mathrm{protons}/c{\mathrm{m}}^2$) and compare the performance with non-irradiated sensors. Efficiencies well above 90 % at noise rates below 200 Hz per pixel are measured. A time resolution better than 22 ns is measured for all tested settings and sensors, even at the highest irradiation fluences. The data transmission at 1.25 Gbit/s and the on-chip PLL remain fully functional.

References in corpus (6)

• Research Proposal for an Experiment to Search for the Decay μ -> eee
• The MuPix System-on-Chip for the Mu3e Experiment
• The MuPix Telescope: A Thin, high Rate Tracking Telescope
• MuPix7 - A fast monolithic HV-CMOS pixel chip for Mu3e
• Results of the 2015 testbeam of a 180 nm AMS High-Voltage CMOS sensor prototype
• Efficiency and timing performance of the MuPix7 high-voltage monolithic active pixel sensor

Cited by in corpus (5)

• Technical design of the phase I Mu3e experiment
• The P2 Experiment - A future high-precision measurement of the electroweak mixing angle at low momentum transfer
• Performance of the large scale HV-CMOS pixel sensor MuPix8
• MuPix and ATLASPix -- Architectures and Results
• A Triplet Track Trigger for the FCC-hh to improve the measurement of Di-Higgs production and the Higgs self-coupling