Patent ID: 7126224
Filing Date: 2006-10-24
Classification: G01R,H01L,H05K

Abstract:
1. An interconnection assembly for temporary contact with a semiconductor device disposed thereover, the semiconductor device having at least one solid external connection element in the form of a solder ball protruding therefrom, the interconnection assembly consisting of: a semiconductor substrate; a dielectric layer extending over a surface of the semiconductor substrate; at least one elongated conductive trace extending over a surface of the dielectric layer and electrically isolated from the semiconductor substrate by the dielectric layer; a passivation layer disposed over and in contact with the at least one elongated conductive trace and the dielectric layer; at least one via extending through the passivation layer to the at least one elongated conductive trace, the at least one via sized and configured for receiving a portion of the solder ball; and a metal interconnection layer lining an interior surface of the at least one via and providing a surface for electrically contacting a portion of an exterior surface of the solder ball.