Production, Testing and Reliability
- Philippe Farthouat (CERN)
More than twenty-five thousand hybrids will be produced for the CMS Tracker Phase Two
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
A major upgrade of the ALICE Detector is underway during LHC LS2 (2019-2020). This includes a new Inner Tracking System (ITS) consisting of seven cylindrical layers of CMOS Monolithic Active Pixel Sensors. The building blocks of each layer are azimuthal elements called Staves.
The Inner Layer Staves are made of a carbon fiber support structure (spaceframe), a carbon fiber cold plate and a...
CMS is planning to install GEM chambers as part of the Muon upgrade for High Luminosity Operation at the LHC. The front-end ASIC (VFAT3) has been produced in volume together with its hybrid PCB. This paper describes the design of a custom test bench for the production Quality Control (QC) of the VFAT3 hybrids. The full QC procedure incorporates calibration and performance measurements,...