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Low-alpha lead is a critical component used by major computer chip manufacturers,
especially in flip-chip packaging to avoid memory and logic soft errors.
The Lab began working on low-alpha lead for a large and well-known company in the
middle 1980's. It performed metallurgical services and design guidance for what
eventually became a large-scale processing facility for processing low-alpha lead.
Other clients, such as Global LAL (formerly Saturn Commodities), required metallurgical
assistance for their own low-alpha lead projects. In order to fully accommodate this
work, a portion of the lab building was dedicated to low-alpha lead processing. It has
the capability of refining the lead in 1,000-pound batches, casting ingots or billets,
extruding and cutting lead pellets, and labeling and packaging the products for
shipment. Because this equipment is dedicated to only processing low-alpha lead,
contamination by other high-alpha sources is strictly controlled and minimized.
Other low-alpha lead projects, such as MSA plating solutions, anodes and oxides,
are in the development stage.
Bench scale work has been done on producing low-alpha tin of good quality. If
the demand for this product increases, as with the low-alpha lead, larger scale
processing will be installed and operated.
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