Patent ID: 7535094

Claim:
A substrate structure comprising: at least two substrate layers extending in substantially parallel planes, which substrate layers are Z-interconnected in a direction substantially perpendicular to said planes, at least one adhesive film layer for interconnecting said at least two substrate layers, that said adhesive film layer(s) comprise(s) non-conductive portions and conductive portions, wherein position(s) of conductive portions is controllable such as to admit positioning of conductive portions at locations in the substrate layers where electrical conductivity is needed in a direction substantially perpendicular to a planar extension of, and between, two interconnected substrate layers, conductive portions being provided at locations to provide for electrical, e.g. DC/RF contact between adjacent substrate layers at said locations and wherein the substrate layers comprise through vent holes (vias) at least at areas requiring electrical conductive connection between substrate layers for allowing encapsulated air to escape, wherein the conductive adhesive film portions comprise conductive particles.