Special Report
Lead-Free Electronic Solder, Why?
On May 15, 2001, the European Parliament accepted and passed on to the Council of Nations a “Proposal for a… Directive on the restriction of the use of certain hazardous substance in electrical and electronic equipment”.

This proposal bans use of lead after July 1, 2006 in most electronic products.
0.5% of total world lead is used in electronic solder to connect electronic products.
In January 2000, EPA co-sponsored an ‘Experts Workshop’ during which numerous scientific experts explained why application of PBT methodology to metals is not consistent with sound science.
There is an abundance of proof that lead in electronic solder has no measurable negative impact on the environment or human health at any stage of its life cycle.

EPA’s Design for the Environment analysis application to lead in electronic solder resulted in the following conclusion:

“The results of the impact assessment can be stated simply: the status quo, lead solder, is preferable to substantial substitution of alloys containing significant amounts of bismuth or tin or by epoxies containing significant amounts of silver. When the relatively minor component of overall lead demand attributable to printed wiring board assembly applications is contrasted with the significantly expanded mining and processing the other options would entail, lead-based solders are the least environmentally harmful choice. Thus a systematic analysis has led to what, for many people, is a counterintuitive result.”
 
 
 
 
Articles
 
  Feature: Lead-Free Electronic Solder,Why? by Harvey Miller
  Impact of Lead-Free on PCB Design by Joe Fjelstad
  G.E. Medical White Paper (White Paper Sac Fragility)
  Phasing out Lead in Solders (Kindej-PWV-EOL)
  Survey on Lead-free Solder from the Danish EPA
  Lead in Gasoline by Magda Lovei
Links
 
As lead deadline looms, industry seeks substitute. by Nicolas Mokhoff, EETimes
  Problems seen ahead for supply chain from lead-free directive By John Walko, EETimes
Lead Bans Spreading Like Wildfire by Fern Abrams, CircuiTree
  IPC's SPVC Releases Data on Lead-free Alloy Comparison CircuiTree
The Lead-Free Solder Project
The Lead-free Solder Project (LFSP) is a voluntary, cooperative project that has been initiated by the Design for the Environment (DfE) Program of the U.S. Environmental Protection Agency's (EPA) Office of Pollution Prevention and Toxics, the University of Tennessee (UT) Center for Clean Products and Clean Technologies, the Electronic Industries Alliance (EIA), the IPC–Association Connecting Electronics Industries (IPC), individual electronics industry companies, and a high-tech research group (SEMATECH). The purpose is to objectively assess the environmental life-cycle impacts of selected lead-free solders as alternatives to tin-lead solder. The DfE LFSP analysis also intends to provide an assessment of recyclability and leachability of the solders, as well as a baseline life-cycle assessment (LCA) of the tin-lead and lead-free alternative solders.
IPC’s Lead Free Website
While all available scientific evidence indicates that the lead used in printed circuit board (PCB) manufacturing and electronic assembly produces no significant environmental or health hazards, IPC believes the pressure to eliminate lead in electronic interconnections will continue in the future from both the legislative and competitive sides.
Lead Free and Green Electronics Forum
The CALCE Electronic Products and Systems Center's Lead Free Forum is dedicated to the collection, generation, organization, and dissemination of information related in the manufacture, assembly, and fielding of lead free and "green" electronic products and systems.
NEMI Lead-Free & Environmental Initiatives
NEMI has several projects and initiatives related to lead-free electronics. This page contains presentations, papers and other materials on topics and issues surrounding lead-free electronics.
Tin Technology
The Real Cost of Lead-Free
Lead ban's impact on EMS - Jim Carbone's article explores how the European Union's (EU) impending ban on the use of lead in electronics equipment will affect all links in the supply chain. But the biggest impact will be on the electronics manufacturing services (EMS).

National Center for Manufacturing Sciences

Contacts
 
 
Harvey Miller: hmiller560@sbcglobal.net  
 
Joe Fjelstad:  Joseph9000@aol.com