Patent ID: 8134085
Filing Date: 2012-03-13
Classification: H05K,Y10T

Abstract:
1. A printed interconnection board, comprising: a pair of signal circuit layers each having a signal interconnection; a core including carbon fiber reinforced plastic having a primary through hole provided between said pair of signal circuit layers; an adhesive member bonding said pair of signal circuit layers and said core, coating a wall surface of said primary through hole in said core, and having a secondary through hole extending within said primary through hole; a first electrically conductive layer formed on a wall surface of said secondary through hole for electrically connecting said signal interconnections of said pair of signal circuit layers via said secondary through hole; and a coating layer coating an outer peripheral edge of said core as seen in a plan view, and said coating layer including said adhesive member and a second electrically conductive layer, and said outer peripheral edge of said core as seen in a plan view is coated with said adhesive member, and a portion of said outer peripheral edge not coated with said adhesive member is coated with said second electrically conductive layer.