Radiation hardness test of the UMC 130 nm nSYNC ASIC with a 60 MeV proton beam and X-Rays

• Published in: 2018 IEEE Nuclear Science Symposium and Medical Imaging Conference Proceedings (NSS/MIC) pp. 1 - 2
• Main Authors: Brundu, Davide, Cadeddu, Sandro, Cardini, Alessandro, Casu, Luigi
• Format: Conference Proceeding
• Language: English
• Published: IEEE 01.11.2018
• Subjects: Calibration; Histograms; Protons; Radiation effects; Registers; Semiconductor device measurement; X-rays
• ISSN: 2577-0829
• DOI: 10.1109/NSSMIC.2018.8824458

The LHCb detector upgrade [1] foresees a new trigger-less readout system operating at 40 MHz. A new muon readout system, based on the nSYNC radiation tolerant ASIC [2] , [3] developed in the UMC 130 nm technology, will be installed and commissioned in 2019-20. The nSYNC chip implements all the required functionalities required: data alignment, time measurement of arriving signals from the front-end electronics using fully digital TDCs, data zero suppression. At the nominal luminosity, and during the ten years of upgrade operation, the chip will be exposed to a total dose of 130 Gy and fluence of 2 * 10 12 cm −2 1MeV neutrons equivalent, in the regions with the highest radiation levels. To guarantee a proper operation in these conditions the most sensitive functional blocks of the chip have been equipped with a triple modular redundancy system (TMR) and with error detection and correction system (EDAC) based on the Hamming code.