Patent ID: 6706201
Filing Date: 2004-03-16
Classification: C23C,H05K

Abstract:
Method of manufacturing metallised substrate materials which are suitable for the manufacture of electrical circuit carriers which may be used in the gigahertz range, in which substrates having fluoropolymer surfaces are securely coated with metal layers by:a. pretreating the fluoropolymer surfaces with a slow discharge process in the presence of an etching gas in such a manner that the averag peak-to-valley height Ra of the fluoropolymer surfaces after carrying out the pre-treatment with the glow discharge process is at the most 20 nm, averaged over 1 &mgr;m2, b. depositing a first metal layer containing nickel on the fluoropolymer surfaces by the decomposition of volatile nickel compounds by means of a glow discharge process, and c. depositing a second metal layer on the first metal layer from a metallisation bath.