Lead-Free Solder Process Development

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"Lead-free Solder Process Development," covers a list of key topics including: legislation, soldering fluxes, SMT, wave, rework, alloys, component finishes, reliability, EDXRF, and standards. It is intended as a reference guide to engineers in the industry who are or who will be migrating to lead-free soldering. It is not intended to be an exhaustive review of the literature but to be a practical reference guide for selected, key subject areas. Each subject area is discussed by those who have conducted work in the field and can provide insight into what are the most important areas to consider. The book gives updates in areas for which researchis ongoing, and addresses new topics which are relevant to lead-free soldering.A practicing engineer will find the book of use as it goes into these topics in sufficient detail to make it informative and a good practical guide to address issues of concern in these areas. Chapters on Soldering Fluxes, Component Finishes, Alloys, EDXRF and certain areas on reliability have not been covered in sufficient detail in previous books, so the proposed book will be a timely reference for engineers in the field. The lead-free solder process window has been found to be smaller than for tin-lead, so a specific chapter is dedicated to Six Sigma process methodologies to help engineers approach lead-free soldering processes with better evaluation and process methodologies.

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GREGORY HENSHALL is Master Engineer at Hewlett-Packard Company in Palo Alto, California. He has more than twenty years' experience in materials research and development, including twelve years of experience with soldering alloys and electronics manufacturing and nine years focused on lead-free technology. Dr. Henshall currently serves as chair for the iNEMI (International Electronics Manufacturing Initiative) Lead-Free Alloy Alternatives Project.JASBIR BATH is the owner of Bath Technical Consultancy LLC in Fremont, California. He has over fifteen years' experience in research, design, development, and implementation in the areas of soldering, surface mount, and packaging technologies working for companies including Flextronics International/Solectron Corporation and ITRI (International Tin Research Institute). Bath has been chair of various iNEMI lead-free consortia involving OEMs, EMS, and component and material supplier companies on alloy selection, assembly, and rework.CAROL A. HANDWERKER is the Reinhardt Schuhmann Jr. Professor of Materials Engineering at Purdue University, Indiana. Previously, she was chief of the Metallurgy Division at the National Institute of Standards and Technology (NIST), where she participated in the NCMS (National Center for Manufacturing Sciences) Lead-Free Solder Project and co-chaired the iNEMI Lead-Free Alloy Selection Team. Dr. Handwerker is currently active on the iNEMI Technical, Research, and Environmental Leadership Steering Committees, as well as a participant in a range of iNEMI project teams.