A High Throughput Production Scale Front-End Hybrid Test System for the CMS Phase-2 Tracker Upgrade
March 06, 2020
April 21, 2020
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.
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