Patent ID: 6412168
Filing Date: 2002-07-02
Classification: H05K,Y10T

Abstract:
A method for making a multi-layer circuit board comprising the steps of:providing a conductive core member having a first surface; providing an insulating layer; selectively coupling said insulating layer to said first surface; attaching a conductive layer to said first insulating layer; selectively removing a portion of said insulating layer from a first region of said multi-layer circuit board; and selectively removing a portion of said conductive layer from said first region, said portion of said conductive layer cooperating with said portion of said insulating layer to form a blind via within said multi-layer circuit board which extends to said conductive core member, and being further effective to form a protrusion of said conductive layer which extends over said blind via, said protrusion being effective to draw in liquids which are selectively inserted into said blind via.