Patent ID: 6599578
Filing Date: 2003-07-29
Classification: H01L,Y10T

Abstract:
A method for improving the firmness of bond wires comprising the following steps:forming a composition layer to serve as a part of multi-level interconnection, said composition layer being composed of at least one conductive layer and at least one dielectric layer wherein said at least one conductive layer and said at least one dielectric layer are piled on top each other, a surface region of said conductive layer having a regular or an irregular layout pattern to increase the roughness of said composition layer; forming a bond pad conductive layer on said composition layer to serve as a bond pad region; forming a passivation layer on said bond pad conductive layer; forming a plurality of bond pad windows in said passivation layer to expose said bond pad conductive layer; and forming a plurality of bond wires in said bond pad windows to couple to an external circuit.