Patent ID: 6577490
Filing Date: 2003-06-10
Classification: H01L,H05K,Y02P

Abstract:
A wiring board having a principal face and a reverse face, which comprises:i) a plurality of principal-face-side connecting terminals formed on the principal face side, wherein the principal-face-side connecting terminals are capable of being connected to terminals, respectively, of an electronic part to be mounted on the principal face side; ii) at least one chip capacitor having a first electrode and a second electrode, wherein the chip capacitor is mounted on the reverse face side, and comprises: a first face facing to the reverse face; at least one first terminal that is formed on the first face and connected to the first electrode; and at least one second terminal that is formed on the first face and connected to the second electrode; iii) at least one first capacitor-connecting terminal formed on the reverse face side, wherein the first capacitor-connecting terminal is connected to the first terminal; iv) at least one second capacitor-connecting terminal formed on the reverse face side, wherein the second capacitor-connecting terminal is connected to the second terminal; v) a plurality of insulating layers interposed between the principal-face-side connecting terminals, and the at least one first capacitor-connecting terminal and the at least one second capacitor-connecting terminal disposed on the reverse side; vi) at least one first converting-conductor layer formed at an interlayer between adjacent two insulating layers, wherein the first converting-conductor layer is electrically connected to a plurality of the principal-face-side connecting terminals at the principal face side, is electrically connected to at least one of the first capacitor-connecting terminals at the reverse face side, and converts a connecting position and a connecting number between the principal face side and the reverse face side; and vii) at least one second converting-conductor layer formed at the interlayer, wherein the second converting-conductor layer is insulated from the first converting-conductor layer, is electrically connected to a plurality of the principal-face-side connecting terminals at the principal face side, is electrically connected to at least one of the second capacitor-connecting terminals at the reverse face side, and converts a connecting position and a connecting number between the principal face side and the reverse face side.