First is controlling Layer to Layer registration which requires accurately predicting material movement. This is done with a self-learning software system that makes scaling predictions based on the stack-up data. Next is using an X-ray drill to both measure and confirm inner layer movement – this data is sent back to the software system - and drill alignment targets which are tied to internal fiducials. These alignment targets are used for both mechanical Vision drilling and laser drilling. Both systems use these targets to align and scale each panel.
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