Patent ID: 8222537

Claim:
A multilayer printed circuit board, comprising: at least one sub-composite structure having a plurality of layers including a dielectric layer arranged between a first conductive layer and a second conductive layer; at least one clearance located in the plurality layers of the at least one sub-composite structure; a plating resist selectively deposited in the at least one clearance; a through-hole formed through the plurality of the at least one sub-composite structure and passing through the plating resist, an interior surface of the through-hole plated with a conductive material in areas of the interior surface that are devoid of the plating resist to form a partitioned via structure extending through two or more conductive layers in the plurality of layers of the at least one sub-composite structure, the partitioned via structure having a first segment electrically isolated from a second segment; and a voltage switchable dielectric material at least partially filling the partitioned via structure and extending from the first segment to the second segment.