Patent ID: 6120672
Filing Date: 2000-09-19
Classification: C23C,G06K,H05K

Abstract:
A process for producing inductively operating counting systems by forming a conducting pattern on an electrically non-conducting substrate, wherein a suitable catalyst for the currentless deposition of metals is applied onto the electrically non-conducting substrate, said process comprising the steps of:applying a liquid photoresist, said liquid photoresist being printed only onto the surface not subsequently covered by the conductive pattern and onto fine-structured portions of the conduction pattern;photostructuring of the fine-structured portions of the conductive pattern by illumination and subsequent developing;currentless deposition of a first thin metallic layer onto the exposed, catalytically coated surface regions;electrolytic deposition of a second metallic layer onto the first metallic layer; andapplication of a decorative protective lacquer or varnish film;wherein the suitable catalyst for the currentless deposition of metals is applied before the currentless deposition of the first thin metallic layer; and the photoresist and catalyst adsorbed thereon are subsequently removed, prior to the application of the decorative protective lacquer or varnish film.