Patent ID: 8127979

Claim:
A method comprising: providing a core comprising a metal; forming a dielectric material on the core; forming vias in the dielectric material, the vias positioned to expose metal regions; performing an electrolytic plating of metal into the vias and on the metal regions, wherein the core is electrically coupled to a power supply during the electrolytic plating of metal into the vias and delivers current to the metal regions; removing the metal core after the electrolytic plating of metal into the vias; and prior to the forming a dielectric material on the core; forming a patterned photoresist layer on the metal core; performing an electrolytic plating of at least one metal layer in an opening in the patterned photoresist layer, wherein the core is electrically coupled to a power supply during the electrolytic plating of the at least one metal layer in the opening and delivers current to the at least one metal layer in the opening; and removing the patterned photoresist layer; wherein the forming a dielectric material on the core includes positioning the dielectric material on the core and on the at least one metal layer.