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Article: Eliminate Lead-free Wave Soldering

Article from:
SMT
Article date:
June 1, 2005
Author:
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THE ADVENT OF LEAD-FREE SOLDERING PRESENTS MANY MANUFACTURERS WITH THE NEED TO WAVE SOLDER USING LEAD-FREE ALLOYS. THESE ALLOYS MELT AND ARE SOLDERED AT TEMPERATURES WELL ABOVE CONVENTIONAL SNPB PROCESSING TEMPERATURES. THIS CREATES SEVERAL WELL-DOCUMENTED PROBLEMS.1 THIS ARTICLE OFFERS A PROVEN AND PRACTICAL ALTERNATIVE TO THE LEAD-FREE WAVE-SOLDERING PROCESS.

A recent regulatory assessment impact report from the UK estimates, "it will cost between $95 and $464 million to retool (wave solder and reflow) machines in that country, with a corresponding annualized cost of $9 million to $47 million."2 Lead-free alloys best suited for use in the wave soldering process are higher in temperature ...

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