Patent ID: 8071471
Filing Date: 2011-12-06
Classification: H01L

Abstract:
1. A method for manufacturing a packaging conductive structure for a semiconductor substrate with a pad, the method comprising the steps of: (a) forming a passivation layer on the semiconductor substrate for partially overlaying the pad and defining a receiving space; (b) forming an under bump metal in the receiving space for electrically connecting with the pad, wherein the under bump metal includes a central portion and a periphery portion, in which the central portion is disposed in the receiving space and partially bonds to the pad, and the periphery portion partially overlays an edge of the passivation layer; (c) forming at least one auxiliary component on the under bump metal; (d) forming a bump conductive layer overlaying the under bump metal and the at least one auxiliary component; and (e) forming a bump on the bump conductive layer to electrically connect with the pad through the bump conductive layer and the under bump metal.