Patent ID: 7521360

Claim:
A manufacturing method comprising: forming an opening in a first surface of a body comprising a semiconductor substrate, wherein the opening extends into the semiconductor substrate; forming a seed for electroplating a conductor into the opening; electroplating the conductor into the opening, wherein the electroplating is initiated on the seed at a distance from the first surface of the body but not over the opening's sidewalls adjacent the first surface of the body, wherein before the electroplating operation, a through hole is formed in the semiconductor substrate at the location of the opening; and forming a conductive layer over a second surface of the body; wherein forming the opening and the through hole comprises: forming the opening in the first surface of the body such that the opening does not go through the body; after forming the conductive layer, extending the opening to form the through hole and expose the conductive layer from the first surface of the body; wherein the seed electrically contacts the conductive layer in the opening; wherein the method further comprises coupling the conductive layer to an electrical potential for the electroplating operation, wherein during the electroplating operation the seed is coupled to the electrical potential through the conductive layer.