Patent ID: 7880093
Filing Date: 2011-02-01
Classification: H01L,H05K,Y10T

Abstract:
1. A substrate for embodying a multi-package comprising: an underlying layer having a polymer material containing a conductive filler, wherein the underlying layer comprises: a bottom part recessed from an upper surface of the underlying layer; and a step part stepping up from the bottom part for a predetermined height, and recessed from the upper surface of the underlying layer, wherein one or more metal-wire forming areas are located at predetermined positions in each of the bottom and step parts; a coating layer formed over the underlying layer including the bottom part and the step part, but excluding the metal-wire forming areas in the step part and the bottom part such that the conductive filler in the metal-wire forming area in the bottom part or the step part is exposed; and a metal wire formed via a plating process using the exposed conductive filler as a seed layer in the metal-wire forming area defined by the coating layer.