Circuit board structure
A printed circuit board structure that includes at least one insulation layer, at least one conductor layer, and at least one embedded component having a contact pad that has an outer barrier layer, in which structure at least two conductor paths/conductor layers are connected to at least two connections using vias, and each via runs from a conductor path/conductor layer directly to the barrier contact layer of the corresponding connection of the component.
1. A printed circuit board structure comprising;
at least one insulation layer, at least one conductor layer, and at least one embedded component, wherein the at least one embedded component further comprises at least two connections, each of the at least two connections comprising a contact, an adhesion layer, and an outer barrier layer disposed on an outer surface of the adhesion layer, wherein in an area of the at least two connections of the embedded component the at least one insulation layer has at least one opening which extends to the outer barrier layer of the at least two connections, and
wherein the printed circuit board structure has at least two conductor paths that are connected to the at least two connections using vias which correspond to each of the at least two connections,
and each via runs from a conductor path directly to the outer barrier layer of the corresponding connection of the component, wherein the material of the barrier layer is selected from the group of nickel, nickel-vanadium, platinum, and cobalt,
characterized in that
the at least one opening is cleaned chemically, whereby the thickness of the barrier layer in the area of the at least one opening is reduced.
2. The printed circuit board structure according to claim 1 , characterized in that the material of the barrier contact layer is nickel.
3. The printed circuit board structure according to claim 1 , characterized in that the via comprises copper.
4. The printed circuit board structure according to claim 1 , characterized in that the adhesion layer is arranged below the barrier contact layer.
5. The printed circuit board structure according to claim 4 , characterized in that the adhesion layer is selected from the group of titanium, titanium-tungsten, and chromium.
6. The printed circuit board structure according to claim 1 , characterized in that the component is a power component.
7. The printed circuit board structure according to claim 6 , characterized in that the power component is an IGBT-Chip/MOSFET.
8. The printed circuit board structure according to claim 7 , characterized in that the component is a power diode.
9. The printed circuit board structure according to claim 1 , characterized in that it is embodied to be flexible, at least flexible in segments.