Patent ID: 9648794
Date: 2017-05-09
CPC Classifications: H05K

Claim:
1. A wiring board, comprising: first and second wiring layers; first and second interlayer insulating layers between the first and second wiring layers; and a thin film member between the first and second wiring layers, the thin film member including (a) an inorganic dielectric film extending all over an area of a mounting face thereof for an electronic part, (b) a first conductive film directly on and extending all over a first face of the inorganic dielectric film and configured of a plurality of patch electrode portions disposed in a predetermined pattern corresponding to a predetermined electromagnetic band gap structure on at least part of the first face, and (c) a second conductive film directly on extending all over a second face of the inorganic dielectric film, wherein the first conductive film includes the plurality of patch electrode portions formed in part of the area of the mounting face for the electronic part, and a plane electrode portion formed in the remaining area of the mounting face for the electronic part, wherein the plane electrode portion is not electrically connected to the plurality of patch electrode portions.