Resistivity of solvent extract (ROSE) is the daily standard by which most high reliability cleaning of electronic assemblies are judged. Many studies have proven the current standard, which uses 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.
Mike is CTO of Kyzen Corp., and current Chairperson of the IPC Cleaning and Alternatives Handbook and IPC/SMTA High Performance Cleaning Symposium.
Kyzen is a leading supplier of precision cleaning chemistries to the worldwide electronics, metal finishing, medical, semiconductor, and optical industries. Founded in 1990, Kyzen offers superior cleaning chemistries, technical support, application and analytical services throughout the world. Kyzen has won numerous industry awards for their exceptional products and all products are RoHS compliant. For more information, visit http://www.kyzen.com.