标题： SiPM模块的生产、质量保证和质量控制用于DarkSide-20k时间投影室 显示英文标题

标题： Production, Quality Assurance and Quality Control of the SiPM Tiles for the DarkSide-20k Time Projection Chamber

摘要： 暗物质直接探测实验DarkSide-20k将采用一个21平方米的硅光电倍增管（SiPM）阵列，用于双相50吨液氩时间投影室（TPC）的探测。 SiPM被排列成称为Tiles的模块化光传感器，每个Tiles集成24个SiPM到一块印刷电路板（PCB）上，该PCB提供信号放大、电源分配和单端输出以简化读出。 16个Tiles进一步分为光电探测单元（PDUs）。 本文详细介绍了Tiles的生产以及为确保其性能和一致性而建立的质量保证和质量控制（QA-QC）协议。 Tiles的生产和QA-QC在Nuova Officina Assergi（NOA）进行，这是位于LNGS的ISO-6洁净室设施。 该过程包括晶圆级低温特性分析、精密倒装芯片键合、引线键合以及每个Tiles的广泛电气和光学验证。 整体生产良率超过83.5%，符合DarkSide-20k生产计划的要求。 这些结果验证了Tiles设计的鲁棒性及其在低温环境下运行的适用性。 显示英文摘要

摘要： The DarkSide-20k dark matter direct detection experiment will employ a 21 m^2 silicon photomultiplier (SiPM) array, instrumenting a dual-phase 50 tonnes liquid argon Time Projection Chamber (TPC). SiPMs are arranged into modular photosensors called Tiles, each integrating 24 SiPMs onto a printed circuit board (PCB) that provides signal amplification, power distribution, and a single-ended output for simplified readout. 16 Tiles are further grouped into Photo-Detector Units (PDUs). This paper details the production of the Tiles and the quality assurance and quality control (QA-QC) protocol established to ensure their performance and uniformity. The production and QA-QC of the Tiles are carried out at Nuova Officina Assergi (NOA), an ISO-6 clean room facility at LNGS. This process includes wafer-level cryogenic characterisation, precision flip-chip bonding, wire bonding, and extensive electrical and optical validation of each Tile. The overall production yield exceeds 83.5%, matching the requirements of the DarkSide-20k production plan. These results validate the robustness of the Tile design and its suitability for operation in a cryogenic environment.