Patent ID: 8309452

Claim:
A method of making a semiconductor device, comprising: providing a substrate; forming first and second contact pads over the substrate; forming a first passivation layer over the substrate and first and second contact pads; removing a portion of the first passivation layer over the first and second contact pads; forming a protective layer over the first passivation layer and first and second contact pads such that the protective layer follows a contour of the first and second contact pads and first passivation layer; removing the protective layer over the first contact pad and first passivation layer while maintaining the protective layer over the second contact pad; forming a conductive layer over the first contact pad and first passivation layer; forming a second passivation layer over the conductive layer and protective layer; removing the protective layer from the second contact pad after forming the second passivation layer; and forming an interconnect structure electrically connected to the second contact pad.