Quality improvement of CMS lines

The design and modeling of the tester reduces the failure rate and the number of boards with defects. Moreover it allows to make the cycle time of each card constant and to test more cards in a reduced time. To do this we began by presenting the problem and proposing solutions to reduce the number of cards with defects in the production process on the SMD line. Then and after a study of the system we chose the hardware to ensure its proper functioning which helps us to automate the tester.