Patent ID: 6073344
Filing Date: 2000-06-13
Classification: H05K,Y10T

Abstract:
A process for circuitizing a hole in a printed circuit board, comprising the steps of:providing a substrate comprising: a first surface and a hole, wherein the hole comprises a hole wall, and wherein the first surface and hole wall each comprise a first electrically insulative material;plating a portion of the hole wall with an electrically conductive material to form a conductive surface on the hole wall; andremoving a portion of the conductive surface by directing radiation onto the portion of the conductive surface to form a plurality of unconnected conductive segments on the hole walls;wherein the removing step comprises removing via the radiation a portion of the first electrically insulative material located underneath the portion of the conductive surface, and wherein a plurality of isolating gaps circumscribing the hole is formed such that the isolating gaps alternate with the unconnected conductive segments.