Lead-free soldering and its problems

摘要

Progress in electronics technology, that in information technology in particular, has accelerated use of lead containing solder. Micro soldering using Sn-Pb system alloy is now supporting manufacture of advanced electronic products, including mobile telephones, PDAs, home electric appliances, car electronic products and portable audio-visual hand sets. Without Sn-Pb solder, present electronics industry cannot be maintained. However, use of lead Pb-Sn solder is not possible for the future, and application of lead-free solder to eliminate use of lead is a must for world electric and electronic machine manufacturer to prevent possible adverse effects caused by lead.