Methods of refining lead-containing materials

The invention includes solder materials having low concentrations of alpha particle emitters, and includes methods of purification of materials to reduce a concentration of alpha particle emitters within the materials. The invention includes methods of reducing alpha particle flux in various lead-co...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Weiser, Martin W, Dean, Nancy F, Clark, Brett M, Bossio, Michael J, Fleming, Ronald H, Flint, James P
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention includes solder materials having low concentrations of alpha particle emitters, and includes methods of purification of materials to reduce a concentration of alpha particle emitters within the materials. The invention includes methods of reducing alpha particle flux in various lead-containing and lead-free materials through purification of the materials. The invention also includes methods of estimating the fractionation of a low concentration of one or more alpha particle emitters during purification of a material.