Patent ID: 7855460

Claim:
An electronic component comprising: a first conductor made of a conductive material; an insulator made of an insulative material and configured to cover a surface of the first conductor; a via hole penetrating the insulator; a second conductor made of a conductive material and located on a surface of the insulator; and a connecting conductor located so as to be filled in the via hole and to electrically connect the first conductor to the second conductor; and a shielding film having conductivity, being interposed between the second conductor and the connecting conductor, and being configured to cover an interface between the connecting conductor and the insulator by extending from a surface of the connecting conductor to the surface of the insulator around the via hole, wherein the shielding film contains any of Cr, Ni, Ti, Cu, W, Ag and Al as a main component, and is formed of a film containing conductive particulates having grain diameters equal to or below 1.0 μm, and is a film having at least any of resistance to a surfactant treatment fluid inclusive of a degreasing fluid, resistance to an acidic chemical solution, resistance to an alkaline chemical solution, resistance to a solvent, resistance to alcohol, resistance to a plating fluid, resistance to an etching fluid, moisture resistance, gas permeation resistance, and corrosion resistance, wherein a top surface of the connecting conductor is planarized so as to be flush with a surface of the insulator.