Sensor Chip Inspection
As part of the ALICE detector upgrade, CERN required a sensor module assembly machine. ALICIA was developed to measure and assemble the 15,000 sensor chips which make up the new detector. Working closely with CERN teams across the globe, the machine accommodated changing requirements as the sensor chip technology developed; from chip size to positioning accuracy and test protocols. The whole assembly and inspection procedure of one sensor module generates 0.5 terabytes of information. The collection and processing of this amount of big data was an additional challenge which was solved. The first machine, ALICIA 1, passed the site acceptance test at CERN and seven more machines have since been delivered by IBS to sites around the globe.