The DarkSide-20k dark matter direct detection experiment will employ a 21m2 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 die attaching, 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.

Production, quality assurance and quality control of the SiPM Tiles for the DarkSide-20k Time Projection Chamber / Zykova, M.P., Zuzel, G., Zichichi, A., Zhu, T., Zhang, Y., Zani, A., Zakhary, P., Zabihi, A., Yin, J., Yang, C., Wojcik, M., Wojcik, M.M., Williams, L., Westerdale, S., Wang, Y., Walczak, M., Wada, M., Vyas, B., Vossebeld, J., Vogelaar, R.B., et al.. - In: EUROPEAN PHYSICAL JOURNAL. C, PARTICLES AND FIELDS. - ISSN 1434-6052. - 85:11(2025), pp. 1-28. [10.1140/epjc/s10052-025-14940-1]

Production, quality assurance and quality control of the SiPM Tiles for the DarkSide-20k Time Projection Chamber

Blua S.;
2025

Abstract

The DarkSide-20k dark matter direct detection experiment will employ a 21m2 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 die attaching, 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.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/3014435
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