Patent ID: 7176117

Claim:
A method for mounting a passive component on a wafer, comprising: providing a wafer having at least one first metal pad, at least one second metal pad, and a passivation layer thereon, the passivation layer exposing the first and second metal pads; forming a capping layer on the exposed first metal pad; forming a metal layer overlying the wafer to cover the capping layer, the passivation layer, and the exposed second metal pad; patterning the metal layer to form an under ball metallurgy layer over the second metal pad; forming a photoresist pattern layer overlying the wafer to cover the capping layer and the passivation layer and expose the under ball metallurgy layer; forming a solder bump on the exposed under ball metallurgy layer; successively removing the photoresist pattern layer and the capping layer to expose the first metal pad; and mounting a passive component on the wafer through the solder bump.