Patent ID: 8324512

Claim:
A multilayered printed circuit board comprising: a substrate; a multilayered structure built thereon and comprising a plurality of conductor circuits and a plurality of interlaminar resin insulating layers in an alternate fashion; and at least one stack-via structure comprising a plurality of via-holes stacked one another and electrically connected to at least one of said conductor circuits through said interlaminar resin insulating layers, wherein each of said via-holes comprises a land portion formed on a respective one of said interlaminar resin insulating layers and a filled via structure portion filling an opening of the respective one of the interlaminar resin insulating layers with a metal layer such that said via-holes are stacked one another immediately above said filled via structure portion of each of said via-holes, said via-holes include an outermost layer via-hole in an outermost layer of said interlaminar resin insulating layers, and at least one of said via-holes has said land portion having a land diameter which is larger than a land diameter of said land portion of said outermost layer via-hole.