This book highlights recent research progress in lead (Pb)-free solder technology, focusing on materials development, processing, and performances. It discusses various Pb-free solder materials’ development, encompassing composite solders, transient liquid phase sintering, and alloying. The book also details various Pb-free solder technology processing and performances, including flux modification for soldering, laser soldering, wave soldering, and reflow soldering, while also examining multiple technologies pertaining to the rigid and flexible printed circuit board (PCB). Some chapters explain the materials characterization and modeling techniques using computational fluid dynamics (CFD). This book serves as a valuable reference for researchers, industries, and stakeholders in advanced microelectronic packaging, emerging interconnection technology, and those working on Pb-free solder.

Covering the major topics in lead-free soldering Lead-free Soldering Process Development and Reliability provides a comprehensive discussion of all modern topics in lead-free soldering. Perfect for process, quality, failure analysis and reliability engineers in production industries, this reference will help practitioners address issues in research, development and production. Among other topics, the book addresses: · Developments in process engineering (SMT, Wave, Rework, Paste Technology) · Low temperature, high temperature and high reliability alloys · Intermetallic compounds · PCB surface finishes and laminates · Underfills, encapsulants and conformal coatings · Reliability assessments In a regulatory environment that includes the adoption of mandatory lead-free requirements in a variety of countries, the book’s explanations of high-temperature, low-temperature, and high-reliability lead-free alloys in terms of process and reliability implications are invaluable to working engineers. Lead-free Soldering takes a forward-looking approach, with an eye towards developments likely to impact the industry in the coming years. These will include the introduction of lead-free requirements in high-reliability electronics products in the medical, automotive, and defense industries. The book provides practitioners in these and other segments of the industry with guidelines and information to help comply with these requirements.

This reference provides a complete discussion of the conversion from standard lead-tin to lead-free solder microelectronic assemblies for low-end and high-end applications. Written by more than 45 world-class researchers and practitioners, the book discusses general reliability issues concerning microelectronic assemblies, as well as factors specific to the tin-rich replacement alloys commonly utilized in lead-free solders. It provides real-world manufacturing accounts of the introduction of reduced-lead and lead-free technology and discusses the functionality and cost effectiveness of alternative solder alloys and non-solder alternatives replacing lead-tin solders in microelectronics.

Even though the effect of lead contamination on human health has been known for decades, very little attention has been paid to lead-based solders used in electronics until recently. This comprehensive book examines all the important issues associated with lead-free electronic solder. It collects the work of researchers recognized for their significant scientific contributions in the area.

The book is important because it reflects a trend, especially in microelectronics manufacture toward recyclability. Europe and Asia are moving towards legislation to ban the use of lead in solders and public demand in the US will likely have the same result. Producers of solders and manufacturers who use them will have to invent and employ suitable substitutes and A Guide to Lead-free Solders will show them how to do so.

The worldwide trend toward lead-free components and soldering is especially urgent in the European Union with the implementation strict new standards in July 2006, and with pending implementation of laws in China and California. This book provides a standard reference guide for engineers who must meet the new regulations, including a broad collection of techniques for lead-free soldering design and manufacture, which up to now have been scattered in difficult-to-find scholarly sources.

The European Union’s directive banning the use of lead-based (Pb) solders in electronic consumer products has created an urgent need for research on solder joint behavior under various driving forces in electronic manufacturing, and for development of lead-free solders. This book provides a comprehensive examination of advanced materials reliability issues related to copper-tin reaction and electromigration in solder joints, and presents methods for preventing common reliablity problems.

This book is about solders and their composition and focuses on material characterizations and the methods used to make alloys and determine their structures, physical properties and applications. Physical properties and the factors that control them and theoretical verification are the main contents of this book. Corrosion of solders is included in the coverage of the properties related to solder composition and mechanical properties.

Assessing the scientific and technological aspects of lead-free soldering, Lead-Free Soldering in Electronics considers the necessary background and requirements for proper alloy selection. It highlights the metallurgical and mechanical properties; plating and processing technologies; and evaluation methods vital to the production of lead-free solders in electronics. A valuable resource for those interested in promoting environmentally-conscious electronic packaging practices! Responding to increasing environmental and health concerns over lead toxicity, Lead-Free Soldering in Electronics discusses: Soldering inspection and design Mechanical evaluation in electronics Lead-free solder paste and reflow soldering Wave soldering Plating lead-free soldering in electronics Lead-Free Soldering in Electronics will benefit manufacturing, electronics, and mechanical engineers, as well as undergraduate and graduate students in these disciplines.