Patent ID: 6605480
Filing Date: 2003-08-12
Classification: H01L

Abstract:
A wafer level packaging process for making flip-chips comprising the steps of:providing a wafer including a plurality of chips integrally, wherein each chip has a plurality of bonding pads, a plurality of fuses, and at least an insulating layer, the insulating layer exposes the bonding pads and has depression portions corresponding to the fuses; forming a protective material completely filling the depression portions prior to a bumping step; bumping on the bonding pads after forming the protective material so as to form a plurality of electrical bumps on the bonding pads of the wafer having the protective material; removing the protective material on the wafer with bumps; probing the wafer for analyzing if there are fail chips required to be repaired; laser repairing the repairable fail chips by means of laser beam striking the fuses without the protective material in the corresponding depression portions; and dicing the wafer for singulating the chips.