Patent ID: 6664142
Filing Date: 2003-12-16
Classification: H01L

Abstract:
A laser repair operation, comprising:providing a silicon wafer having a plurality of chips therein, wherein each chip has a plurality of bonding pads, a plurality of testing pads, a plurality of fuses an a passivation layer over the chip with the passivation layer having a plurality of openings exposing the bonding pads and the testing pads; forming a metallic layer over the wafer; removing a portion of the metallic layer so that a first bottom metallic layer is formed over each bonding pad and a second bottom metallic layer is formed over each testing pad; coating a plurality of solder materials over the boding pads by printing; conducting a reflow operation t transform the plurality of solder materials into a plurality of bumps; performing a testing operation by probing a surface of the second bottom metallic layer; and conducting a laser repair.