Patent ID: 7622377

Claim:
A method for forming a support substrate for carrying microfeature dies, comprising: exposing a support substrate to an electrolyte, the support substrate having a first side with a first conductive layer, a second side opposite the first side with a second conductive layer, and a conductive path extending through the support substrate from the first conductive layer to the second conductive layer; and forming a bond pad at a bond site of the first conductive layer by removing a portion of the first conductive layer adjacent to the bond site and disposing at least one conductive bond pad material at the bond site, wherein disposing the at least one conductive bond pad material includes passing an electrical current between the first and second conductive layers via the conductive path while the support substrate is exposed to the electrolyte, wherein passing the electrical current is carried out by a process that includes applying an electrical potential to the second conductive layer without applying the electrical potential to the first conductive layer, other than through the conductive path.