Decision Matrix as a Tool for Pb-Free Alloy Selection

For aerospace products, there is no current legislation or directive that sets a schedule for transitioning to Pb-free electronics, however, aerospace industry is likely to be “swept along” because its dependency on the larger commercial electronic industry which has already changed its materials, components, and assemblies to Pb- free. In this study we present a synthesis of Pb-free solders along with critical factors affecting its selection and deployment. A decision matrix methodology is introduced as a valuable tool to assist the alloy selection process based on specific criteria and life cycle conditions.