Insights gained from test system preparation for the hybrids production for the CMS Phase-2 Outer Tracker Article Swipe

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P. Szydlik , M. Abbas , I. Ahmed , B. Allongue , D. Andreou , G. Blanchot , R. Carnesecchi , K. Klein , M. Kovacs , A. Lapornik , A. La Rosa , M. Lipinski , D. Louis , M. Mohammadi Najafabadi , A. Pauls , A. Sultan , F. Thurn , Olga Zormpa ·

YOU? · · 2025 · Open Access · · DOI: https://doi.org/10.1088/1748-0221/20/02/c02035 · OA: W4407564615

The CMS Phase-2 Outer Tracker requires the manufacturing of 8000 Strip-Strip and 5880 Pixel-Strip silicon modules, altogether incorporating 47 520 hybrid circuits of 18 variants. To ensure complete functionality of the modules it is essential to perform production-scale testing of the hybrids before the module assembly. For that reason, a complex, scalable test system was designed, manufactured, and commissioned. However, the system deployment encountered more difficulties than anticipated which required extensive debugging and creative problem solving. The problems, solutions, and lessons learned from the system deployment are presented.