Irradiation of VFAT3: A 128-channel charge-sensitive front-end chip for the CMS GEM phase-2 upgrade

VFAT3 is the 128-channel charge-sensitive front-end chip explicitly designed for the CMS GEM phase-2 upgrades. LHC is undergoing major high luminosity upgrades for HL-LHC where the particle rate is expected to increase up to 5 times with respect to the nominal LHC luminosity of 10\textsuperscript{34}cm\textsuperscript{-2}s\textsuperscript{-1}. It is therefore necessary to monitor the evolution of the VFAT3 response due to aging in the radiation environment by total ionizing dose (TID) tests. The device operation could also be interrupted by a single high-energy particle. Thus, the estimation of the single event upset (SEU) cross-section is essential as well. This contribution summarizes all the irradiation test results that validate the suitability of VFAT3 for CMS GEM phase-2 upgrade.