Patent ID: 7056820
Filing Date: 2006-06-06
Classification: H01L

Abstract:
1. A method of forming a bond pad for use in a wirebond interconnection, comprising: forming a first non-conductive layer in direct mechanical contact with a surface of a substrate, wherein the first non-conductive layer comprises a via extending down to the surface of the substrate; depositing a first layer of bond pad material in direct mechanical contact with a surface of the first non-conductive layer, wherein the first layer of bond pad material fills the via and extends beyond the via onto the surface of the first non-conductive layer; depositing a second layer of bond pad material in direct mechanical contact with the first layer of bond pad material, wherein the first and second layers of bond pad material on the surface of the first non-conductive layer extending beyond the via form a bond pad region, and wherein the first layer of bond pad material has a higher Young's Modulus of Elasticity than the second layer of bond pad material; depositing a second non-conductive layer over the second layer of bond pad material, wherein the second non-conductive layer is in direct mechanical contact with the bond pad region of the second layer of bond pad material; forming an opening within the second non-conductive layer down to the bond pad region of the second layer of bond pad material; and forming a wirebond interconnection within the opening within the second non-conductive layer in mechanical and electrical connection with the second layer of bond pad material.