Quality control and quality assurance evaluation of ALFE2, a large-dynamic-range front-end ASIC de-veloped for the ATLAS Liquid Argon Calorimeter high-luminosity LHC upgrade
Abstract
ALFE2 is a front-end ASIC developed for the ATLAS Liquid Argon (LAr) Calorimeter upgrade during the High-Luminosity Large Hadron Collider (HL-LHC) phase. ALFE2 comprises four preamplifier/shaper channels, each providing two distinct gain outputs to cover a 16-bit dynamic range. A robotic system has been developed for the automatic quality control test of ALFE2, and over 10% of the 80,000 chips have been evaluated by September 2025. The evaluation has allowed us to establish grading criteria. Using these criteria, a yield of over 85% was achieved in the evaluation tests, and these criteria are now being applied to the ongoing full-production QC. Irradiation tests were also performed for the quality assurance of ALFE2. No significant performance degradation was observed during the total-ionizing-dose (TID) test. Based on the single-event effect (SEE) test results, an error rate of fewer than 4.6 single-event upsets (SEUs) per day is extrapolated for the entire ATLAS LAr Calorimeter during HL-LHC operation.
Versions
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BibTeX
@misc{buschmann2026quality,
title = {{Quality control and quality assurance evaluation of ALFE2, a large-dynamic-range front-end ASIC de-veloped for the ATLAS Liquid Argon Calorimeter high-luminosity LHC upgrade}},
author = {E. Buschmann and G. Carini and G. Chatzianastasiou and H. Chen and Y. Chen and M. Dabrowski and G. Deptuch and L. Duflot and M. Feo and J. Kierstead and T. Liu and H. Ma and D. Matakias and N. Morange and M. Oliveira and S. Rescia and E. Rossi and S. Tang and M. Tamari and H. Xu},
howpublished = {arXiv},
year = {2026},
month = aug,
doi = {10.48550/arxiv.2607.10458},
eprint = {2607.10458},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2607.10458},
}
RIS
TY - UNPB
TI - Quality control and quality assurance evaluation of ALFE2, a large-dynamic-range front-end ASIC de-veloped for the ATLAS Liquid Argon Calorimeter high-luminosity LHC upgrade
AU - E. Buschmann
AU - G. Carini
AU - G. Chatzianastasiou
AU - H. Chen
AU - Y. Chen
AU - M. Dabrowski
AU - G. Deptuch
AU - L. Duflot
AU - M. Feo
AU - J. Kierstead
AU - T. Liu
AU - H. Ma
AU - D. Matakias
AU - N. Morange
AU - M. Oliveira
AU - S. Rescia
AU - E. Rossi
AU - S. Tang
AU - M. Tamari
AU - H. Xu
PY - 2026
DA - 2026/08/17
PB - arXiv
DO - 10.48550/arxiv.2607.10458
UR - https://arxiv.org/abs/2607.10458
AB - ALFE2 is a front-end ASIC developed for the ATLAS Liquid Argon (LAr) Calorimeter upgrade during the High-Luminosity Large Hadron Collider (HL-LHC) phase. ALFE2 comprises four preamplifier/shaper channels, each providing two distinct gain outputs to cover a 16-bit dynamic range. A robotic system has been developed for the automatic quality control test of ALFE2, and over 10% of the 80,000 chips have been evaluated by September 2025. The evaluation has allowed us to establish grading criteria. Using these criteria, a yield of over 85% was achieved in the evaluation tests, and these criteria are now being applied to the ongoing full-production QC. Irradiation tests were also performed for the quality assurance of ALFE2. No significant performance degradation was observed during the total-ionizing-dose (TID) test. Based on the single-event effect (SEE) test results, an error rate of fewer than 4.6 single-event upsets (SEUs) per day is extrapolated for the entire ATLAS LAr Calorimeter during HL-LHC operation.
ER -