Patent ID: 8927899
Filing Date: 2015-01-06
Classification: H05K,Y10T

Abstract:
1. A method of manufacturing a high density circuit carrier, said method comprising the following method steps: a) Providing a printed circuit board having circuit traces on at least one side thereof; b) Coating the printed circuit board on the at least one side thereof with a dielectric to form a dielectric layer over the circuit traces; c) Structuring the dielectric layer for producing trenches and vias therein using laser ablation, the trenches not extending completely through the dielectric layer to the circuit traces and the vias extending through the dielectric layer to the circuit traces; d) Depositing a primer layer onto the entire surface of the dielectric layer or depositing the primer layer into the produced trenches and vias only; e) Depositing a metal layer onto the primer layer, with the trenches and vias being completely filled with metal for forming conductor structures therein; and f) Removing the metal layer and the primer layer, except for in the trenches and vias, to expose the dielectric layer if the primer layer has been deposited onto the entire surface in method step d).