SMTA International Conference Proceedings


Authors: Curtis Hart; Steve Stach; Mike Bixenman, DBA
Company: Hart Engineering; Austin American Technology; Kyzen Corporation
Date Published: 10/24/2010   Conference: SMTA International

Abstract: Resistivity of solvent extract (R.O.S.E.) is the daily standard, by which, most high reliability cleaning of electronic assemblies are judged. Many studies have shown the current standard using isopropyl alcohol (IPA) and water to be misleading when accessing if fluxes remain in areas that would likely lead to reliability concerns. This paper reviews the limitations of the current test method and validates a new modified test method that greatly improves the ability to dissolve and detect trapped residues that could limit product performance. The research objective is to contrast the current IPC TM-650 2.3.25 method against a new method that validates the cleanliness levels on today’s circuit assemblies.

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