Patent ID: 8536696
Filing Date: 2013-09-17
Classification: H01L,H05K,Y10T

Abstract:
1. A package structure, comprising: a core substrate comprising: a first build up structure formed on the first side of the resin insulating substrate, the first build up structure comprising a first interlayer resin insulating layer and a first conductor layer; a second build up structure comprising: a pad structure formed on the outermost interlayer resin insulating layer; a solder resist formed on the outermost interlayer resin insulating layer and the pad structure, the solder resist comprising an organic resin and having an opening exposing a partially exposed portion of the pad structure; a conductive connecting pin configured to establish an electrical connection with another substrate, the conductive connecting pin being secured to the partially exposed portion of the pad structure via a solder; and a via hole formed through the outermost interlayer resin insulating layer directly below the pad structure and electrically connecting the pad structure and at least one of the conductor circuits of the second conductor layer formed below the outermost interlayer resin insulating layer.