Patent ID: 8580672
Filing Date: 2013-11-12
Classification: H01L

Abstract:
1. A method, comprising: forming a conductive pad in a layer of insulating material; forming a passivation layer above said conductive pad and said layer of insulating material; performing at least one etching process on said passivation layer to define an opening in said passivation layer that exposes at least a portion of said conductive pad; forming a protective layer comprising of one of silicon dioxide, silicon oxyfluoride (SiOF), silicon nitride (SiN), and silicone carbon nitride (SiCN) on said passivation layer, in said opening and on said exposed portion of said conductive pad; forming a heat-curable material layer above said protective layer; performing an etching process on said heat-curable material layer to define a patterned heat-curable material layer having an opening that exposes a portion of said protective layer; performing an etching process to remove said exposed portion of said protective layer to thereby expose at least a portion of said conductive pad; and after removing said exposed portion of said protective layer, forming a conductive bump that is conductively coupled to said conductive pad.