Method for forming and arrangement of barrier layers on a polymeric substrate

摘要

The main subject of the invention is method for forming an arrangement of two ceramic barrier layers (5,10) on a polymeric substrate (1) which comprises the steps of: A) Applying a first ceramic barrier layer (5) on the substrate (1), B) modifying the surface (5A) of the first barrier layer (5) to introduce new nucleation sites on the surface of this first layer, C) forming a second ceramic barrier layer (10) on the first barrier layer (5) using the new nucleation sites. The method of the invention allows the deposition of the second ceramic layer with independent nucleation sites so that a barrier stack of enhanced quality is formed.