Patent ID: 8349721

Claim:
A method of making a semiconductor device, comprising: providing a semiconductor die including a plurality of bumps formed over a surface of the semiconductor die; providing a substrate; forming a plurality of first conductive traces with interconnect sites over the substrate, the bumps being wider than the interconnect sites; forming a plurality of second conductive traces adjacent to the first conductive traces; forming a masking layer over the substrate and over the first and second conductive traces; removing the masking layer from over the first and second conductive traces to form an opening; forming an oxide layer over the second conductive traces within the opening in the masking layer; bonding the bumps to the interconnect sites so that the bumps cover a top surface and side surface of the interconnect sites, the oxide layer maintaining electrical isolation between the bumps and second conductive traces; and depositing an encapsulant around the bumps between the semiconductor die and substrate.