Patent ID: 8487192
Filing Date: 2013-07-16
Classification: H01L,H05K,Y10T

Abstract:
1. A printed wiring board, comprising: an insulation layer comprising a resin material and having a first surface and a second surface on an opposite side of the first surface, the insulation layer having an opening portion opened on the second surface; a conductive circuit having a first surface and a second surface on an opposite side of the first surface of the conductive surface, the conductive circuit being embedded in the insulation layer such that the first surface of the conductive circuit is formed flush with the first surface of the insulation layer and that the second surface of the conductive circuit is exposed through the opening portion of the insulation layer; a first surface-treatment film formed on the conductive circuit and facing the first surface of the conductive circuit; and a second surface-treatment film formed on the conductive circuit and facing the second surface of the conductive circuit and in the opening portion of the insulation layer.