Silicon strip staves and petals for the ATLAS Upgrade tracker of the HL-LHC

This paper describes the baseline integration structures for the silicon strip sensors to be used in the ATLAS detector for the Phase-II upgrade of the Large Hadron Collider (LHC) machine, the so-called High Luminosity LHC (HL-LHC). Highly modular structures have been developed for the integration of the silicon strips sensors, readout electronics, cooling, and support structures, called `staves' for the barrel region and `petals' for the end-caps of the ATLAS strips tracker. This work describes the status of the current prototypes, the building procedure, designed for mass production even at a prototyping stage, and their electrical performances.