AI 中文总结
针对ATLAS液态氩量能器升级的ALFE2前端ASIC，开发机器人系统进行质量控制测试并建立分级标准，评估测试良率超85%，应用于全面生产质量控制，辐照测试无显著性能下降，推断出HL-LHC运行时的单粒子翻转错误率。
AI 中文摘要
ALFE2是为高亮度大型强子对撞机（HL-LHC）阶段的ATLAS液态氩（LAr）量能器升级而开发的前端ASIC。它包含四个前置放大器/整形器通道，每个通道提供两个不同增益输出以覆盖16位动态范围。已开发出机器人系统用于ALFE2的自动质量控制测试，到2025年9月已评估了80000颗芯片中的10%以上，并建立了分级标准。评估测试中良率超过85%，该标准已应用于正在进行的全面生产质量控制。还进行了辐照测试以确保质量，在总电离剂量（TID）测试中未观察到显著性能下降。根据单粒子效应（SEE）测试结果，推断出HL-LHC运行期间整个ATLAS LAr量能器每天的单粒子翻转（SEU）错误率少于4.6次。
英文摘要
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.
Comments16 pages, 14 figures
