Patent ID: 8912649

Claim:
A device comprising: a substrate; a metal pad over the substrate; a passivation layer comprising a portion over the metal pad; a post-passivation interconnect (PPI) electrically coupled to the metal pad, wherein the PPI comprises a portion over the metal pad and the passivation layer; a polymer layer over the PPI; a dummy bump over the polymer layer, wherein the dummy bump is electrically insulated from conductive features underlying the polymer layer; a non-reflowable electrical connector formed in the polymer layer, wherein the non-reflowable electrical connector is electrically coupled to the PPI; and a package component comprising: an additional electrical connector bonded to the non-reflowable electrical connector; and a dielectric layer at a surface of the package component, wherein the dummy bump is in contact with the dielectric layer, and electrically insulated from conductive features in the package component by the dielectric layer.