An Activity Number for Fluxes

Author: Roché N.G.   MacKay C.A.  

Publisher: Emerald Group Publishing Ltd

ISSN: 0305-6120

Source: Circuit World, Vol.17, Iss.1, 1993-12, pp. : 54-55

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract

Current classification of fluxes is typically on the basis of a qualitative process with parameters like residue activity in a water extract or the ability to dissolve copper in a thin mirror film. The capability of quantitatively ranking fluxes by their total reaction capacity and reaction rate with copper oxide would provide valuable data for process design. Results are reported of experiments to establish a standard procedure to measure a flux activity number using a controlled reaction of a measured amount of flux reacted with an excess of a standard metal oxide.

Related content