Choosing A Low-Cost Alternative To Sac Alloys For Pcb Assembly: Preliminary Work
Authors: Brook Sandy and Ronald Lasky, Ph.D., P.E. Company: Indium Corporation Date Published: 10/16/2011
Abstract: Developing low-cost alternatives to near-eutectic SAC alloys for Pb-free assembly is crucial to continue producing affordable electronics products. Metals prices have been on the rise, and other factors, such as concerns about “conflict tin”, indicate that this trend could likely continue. Solder alloys with lower silver content have been considered, with trade-offs in performance, but are there alternatives? This paper discusses some new alloy options, comparing performance to current low-cost options, and considers approaches to enhance the performance of low-cost solder alloys.