Patent ID: 7037826
Filing Date: 2006-05-02
Classification: H01L

Abstract:
1. A method of forming a bonding pad of a semiconductor device comprising: forming a first insulating layer over a semiconductor substrate; forming a trench by removing some portion of the first insulating layer; forming a top metal interconnect in the trench; forming a second insulating layer over the substrate including the top metal interconnect; forming a contact hole by removing some portion of the second insulating layer, the contact hole exposing a portion of the top metal interconnect; forming a metal layer on the surface of the second insulating layer and the sidewalls and bottom of the contact hole; forming a metal pad by removing some portions of the metal layer, wherein the metal pad is extended to some portion of a top surface of the second insulating layer; forming a third insulating layer over the second insulating layer and the metal pad; and exposing the extended metal pad on the top surface of the second insulating layer by removing some portion of the third insulating layer on the extended metal pad which is in contact with the top surface of the second insulating layer, wherein the exposed metal pad is displaced from the location at which the metal pad structure of the contact hole is attached to the top metal interconnect.