Patent ID: 7582556
Filing Date: 2009-09-01
Classification: H01L

Abstract:
1. A method for fabricating a circuit component, comprising: providing a semiconductor wafer, a first metal layer over said semiconductor wafer, and a first polymer layer over said first metal layer and over said semiconductor wafer; polishing said first polymer layer and uncovering a surface of said first metal layer; after said polishing said first polymer layer, forming a second metal layer over said first polymer layer and on said surface; after said forming said second metal layer, forming a photoresist layer on said second metal layer, wherein an opening in said photoresist layer exposes a region of said second metal layer; after said forming said photoresist layer, forming a third metal layer over said region; after said forming said third metal layer, removing said photoresist layer; and after said removing said photoresist layer, removing said second metal layer not under said third metal layer.