Patent ID: 6221229
Filing Date: 2001-04-24
Classification: H01L,H05K

Abstract:
A method for forming metallic conductor patterns having connection regions, that can be soldered and/or bonded, on electrically insulating substrates, the method having the following steps:applying a metalization to the substrate;removing the metalization by means of fine laser structuring, at least in those regions directly adjacent to the desired conductor pattern to form a conductor pattern with individual conductors of the conductor pattern, said conductors being electrically connected to one another by a conductive connection;then applying an organic, electrolysis-resistant protective layer to the conductor pattern in an electrolytic dip-coating bath;removing the protective layer in the subsequent connection regions of the individual conductors by laser structuring; andelectrolytically depositing a final surface material that can be soldered and/or bonded to those regions of the metalization exposed by the step of removing the protective layer.