Device and method for marking copper-clad laminates

This invention relates to a device and a method for marking copper-clad laminates. A device for marking copper-clad laminates comprises a laser (), in whose resonator () there is an intensity-controlling screen (), an expanding lens () for expanding the laser beam () and a focusing lens () for focusing the expanded laser beam () on the surface of a workpiece () in the form of a copper-clad laminate. In the corresponding method for marking copper-clad laminates a laser beam () is expanded, and the expanded laser beam () is focused on the surface of a workpiece () in the form of a copper-clad laminate, with the laser intensity inside laser resonator () being controlled by a screen ().