Patent ID: 7325299
Filing Date: 2008-02-05
Classification: B32B,H01L,H05K,Y10T

Abstract:
1. A method of making a circuitized substrate, comprising the steps of: providing a substrate having an upper surface; forming a conductive layer having a substantially planar upper surface on and in direct mechanical contact with the upper surface of the substrate; removing a portion of the conductive layer to form a interim side wall in the conductive layer; forming a layer of patternable material on the substantially planar upper surface of the conductive layer and on the interim side wall in the conductive layer; removing a portion of the layer of patternable material on the conductive layer to expose the interim side wall in the conductive layer and a portion of the substantially planar upper surface of the conductive layer relative to the interim side wall to form a side wall in the layer of patternable material; and removing portions of the interim side wall in the conductive layer to form a second side wall and a bottom wall, said bottom wall defined by the upper surface of the substrate, said second side wall being substantially perpendicular to the bottom wall.