Topics in Lead-Free Solders: Restriction of Hazardous Substances Recast (RoHS2)

A Comparison of Lead-Free vs. Eutectic Solders

T he use of lead in the electronics industry today accounts for approximately 7% of total lead consumption.' The single largest use of lead is in the manufacture of storage batteries, which accounts for 60% of the total lead produced.2 The use of lead is closely regulated in plumbing, paint and gasoline industries. Currently, the electronics industry has been exempted from the existing requirem...

Effects of Lead-Free Solders on Flex Performance

Ceramic capacitors have proven themselves very reliable with extremely low failure rates. As processes continue to improve, reliability of the dielectric also continues to increase. This increase in the reliability of the dielectric has caused other categories to emerge as the main contributors to the overall failure rate. A recent review of field failure analysis of surface mount MLCCs, has sh...

Novel Rare-Earth-Containing Lead-Free Solders with Enhanced Ductility

Several lead-free material systems are available as replacements for traditional lead-based solders in microelectronic packaging, including near-eutectic combinations of tin-rich alloys. Although these materials have superior mechanical properties as compared to the Pb-Sn system, much work remains in developing these materials for electronic packaging. Small additions of rare-earth elements hav...

Hazardous Substances and Activities

Advisory Committee on Hazardous Substances

I. Review information and studies on the environmental exposure and effects of nanoparticulate silver; II. Comment on known or predicted environmental exposure levels and whether these present a human health or environmental risk; III. Comment on the nature of appropriate measures to minimise risks, if these are felt to be necessary at this point in time; IV. Consider what action should be take...