Patent ID: 7529102
Filing Date: 2009-05-05
Classification: H01L,H05K

Abstract:
1. A wiring substrate, comprising: a substrate; a conductive film that includes a metal and that is formed above the substrate; a component having a dielectric constant lower than a dielectric constant of the substrate; a barrier layer, at least a part of which contacts at least a part of the component; and a protective film, at least a part of which contacts at least a part of the component, an insulating film disposed below the barrier layer, the protective film, and the component, the barrier layer being disposed between the protective film and the insulating film, at least a part of the insulating film contacting the conductive film, the component being disposed between the barrier layer and the protective film, the component not contacting the the conductive film and the insulating film, and the conductive film being disposed between the substrate and the component.