Patent ID: 6955981
Filing Date: 2005-10-18
Classification: H01L,Y10T

Abstract:
1. A method of fabricating a bonding pad anchoring structure, comprising the steps of: providing a substrate; forming a series of grated metal layers over the substrate separated by a interleaving series of via plug layers having via plugs electrically connecting respective at least a portion of adiacent grated metal layer; the series of grated metal layers having an uppermost grated metal layer; forming an uppermost via plug layer over the uppermost grated metal layer; the uppermost via plug layer having via plugs; and forming a bonding pad layer over the uppermost via plug layer so that the uppermost via plugs within the uppermost via plug layer electrically connect the bonding pad layer to at least a portion of the uppermost grated metal layer; wherby the bonding pad layer is securely bonded to the substrate; wherein the bonding pad layer comprises a bonding pad; the bonding pad comprising an outer metal ring a series of non-continuous, spaced-apart grated metal lines.