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Inside ACI: RoHS and Lead-free Update
December 31, 1969 |Estimated reading time: 1 minute
The American Competitiveness Institute (ACI) hosted a day with Ron Lasky, Ph.D., Indium, as a free workshop focusing on critical areas of lead-free assembly. Indium Corporation and SMT co-sponsored this educational program, which reviewed recent activity in RoHS, especially as related to medical exemptions.
The European Union (EU) has been reasonable in the way RoHS has been applied since the July 1, 2006, activity date. Category 8, covering the exemption of medical equipment, and Category 9, exempting monitor and control instruments, were intended to be temporary, though aerospace and defense are exempted long-term. RoHS is becoming the de facto standard. When placing a product on the market, it is simply understood that the product should be RoHS compliant, was the view expressed at the workshop.
Since the electronics industry settled on SAC 305 as an alternative to tin/lead solder, other alloys have shown to give better results. SACY, with "Y" representing dopants used in small amounts, may not be allowed in the updated RoHS directive, due to these additional elements. Therein lies a problem. As the electronics industry diverges away from SAC 305 and toward other compounds, the latest application of RoHS lists even more restricted substances. For more information about ACI's workshops, visit www.aciusa.org.
Gail Flower, editor-in-chief