CERN Accelerating science

CMS Note
Report number	CMS-CR-2019-225
Title	A High Throughput Production Scale Front-End Hybrid Test System for the CMS Phase-2 Tracker Upgrade
Author(s)	Kovacs, Mark Istvan (CERN) ; Baesso, Paolo Giuseppe (INFN, Pavia ; Pavia U.) ; Blanchot, Georges (CERN) ; De Clercq, Jarne Theo (Vrije U., Brussels) ; Di Croce, Davide (Alabama U.) ; Gajanec, Rafael (CERN) ; Haranko, Mykyta (CERN) ; Makarenko, Inna (Brussels U.) ; Rasevic, Nikola (VINCA Inst. Nucl. Sci., Belgrade) ; Zografos, Angelos (Natl. Tech. U., Athens)
Publication	2019
Collaboration	CMS Collaboration
Imprint	13 Oct 2019
Number of pages	6
Presented at	TWEPP 2019 Topical Workshop on Electronics for Particle Physics, Santiago De Compostela, Spain, 2 - 6 Sep 2019
Subject category	Detectors and Experimental Techniques
Accelerator/Facility, Experiment	CERN LHC ; CMS
Keywords	General
Abstract	More than twenty-five thousand hybrids will be produced for the CMS Outer Tracker Phase-2 Upgrade. The hybrids are assembled with flip-chips, passives and carbon-fibre stiffeners. They will be glued to their module supports, together with powering and optical transmission hybrids, making repairs almost impossible. Due to the complexity of the hybrid circuits and the circuit assembly, production scale testing is a very important aspect. A crate-based scalable test system was designed to enable a multiplexed test of front-end hybrids. A test card was produced for the 2S hybrids and two different hybrid test cards are under development.