Patent ID: 7960270
Filing Date: 2011-06-14
Classification: H01L

Abstract:
1. A method for fabricating a circuit component, comprising: forming a first metal layer over a substrate; forming a first patterned mask layer on said first metal layer, wherein a first opening in said first patterned mask layer exposes a first region of said first metal layer; forming a second metal layer on said first region, wherein said forming said second metal layer comprises forming a nickel layer over said first region; forming a second patterned mask layer on said second metal layer, wherein a second opening in said second patterned mask layer exposes a second region of said second metal layer; forming a third metal layer on said second region; after said forming said third metal layer, removing said second patterned mask layer; after said forming said second metal layer, removing said first patterned mask layer; and after said forming said second metal layer, removing said first metal layer not under said second metal layer.