An efficient and environmental-friendly method, featuring a cyanide-free plating process was established for Au-coated Ag wire (ACA). This new Ag wires can meet the reliability standards of wire bonding. The proposed ACA wire was studied to ensure compatibility with electrical properties; mechanical properties and free air ball characterization. Tensile tests showed that ACA wire was stronger than pure Ag wire. The Au coated layer has excellent an bonded interface with the Ag wire. Electrical properties at high temperature demonstrate that the ACA wire maintains outstanding electrical resistance. Further, the Au layer coating the Ag prevents wire oxidation and corrosion during the packaging process. ACA wire formed by the cyanide-free plating method can be used for IC and LED packaging processes.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.