Epoxy material for small electronic packages.

A specialty material suited for small optoelectronic-package designs is available from Rogers Corp. (Rogers, CT; 860/774-9605). The white epoxy molding material is formulated to endure high solder temperatures while retaining the necessary optical, electrical, and mechanical properties. Reflecton epoxy meets the demand for dense packaging and components by reflecting "good" light and keeping out unwanted light, thus enabling thinner package designs. By balancing high reflectivity with opacity, Reflecton makes it possible for design engineers to eliminate the traditional extra epoxy layer and to create more-efficient components. The epoxy displays good IR solder-reflow capabilities; it is moisture resistant and provides lot-to-lot quality and consistency.