Patent ID: 7429543

Claim:
A method for the production of a substrate with a surface treated by a vacuum treatment process, the surface having a specified areal distribution of the treatment result, wherein said vacuum treatment process is coating process depositing a layer on the substrate in such a way that at least locally the surface normal of the substrate before the deposition of said layer is tilted with respect to the surface normal of the deposited layer, and wherein said specified areal distribution of the treatment result is a specified areal distribution of the thickness of the deposited layer, wherein: a plasma discharge is established with a locally inhomogeneous density distribution, the substrate is exposed to the effect of the inhomogeneously density-distributed plasma discharge, the specified areal distribution of the treatment result is established by establishing a specified relative movement of the inhomogeneous density distribution and of the substrate, establishing a specified time variation of the electric power signal supplying the discharge and/or of an optionally provided further electric signal which connects the substrate to bias voltage, wherein, in case that said electric power signal or said further electric signal is an AC signal, said specified time variation of said electric power signal addresses a modulation of said AC signal, setting said variation and said movement.