The Cms Tracker-Endcap : Production and Performance Issues

As a very large number of sensors, electronics, integrated circuits and substructures are to be produced in CMS, the collaboration has developed a very elaborate and detailed quality insurance program. All the aspects of the production have been studied and carefully treated in order to optimize the quality and robustness of the detectors and the electronics that should survive ten years of operation of LHC. A description of the methods used in the production scheme is given together with preliminary results of beam tests performed on tracker end-cap substructures with high energy muon and pion beams.