Multilevel body e.g. optical data medium, making method, involves forming layer from humidity-absorption plastic, and covering layer directly or indirectly with metal layer for placing bridges into metal layer

摘要

The method involves forming a layer from a humidity-absorption plastic, and covering the layer directly or indirectly with a metal layer for placing humidity-permeable diffusion bridges into the metal layer. The metal layer is produced and/or reworked in such a manner that it has a micro perforation section wise. The micro perforation with a mechanical process is placed into the metal layer by laser radiation. The laser radiation is guided by a beam guide device over the metal layer. The laser radiation is guided through screens, so that the screens are formed in the metal layer. Independent claims are also included for the following: (1) a multilevel body comprising a layer formed from humidity-absorption plastic (2) a method for making humidity-permeable diffusion bridges in a metal layer.