A Study on the Evaluation Methods of Residual Flux Cleaning Ability by Alternative Semi-Aqueous Cleaners Using Metal Test Tools After Soldering with Solder Paste 


Vol. 14,  No. 2, pp. 103-109, Jun.  2008


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  Abstract

In this study, in order to develop evaluation method of the cleaning efficiency of residual flux which remains on the surface after soldering with solder paste, a specially designed metal tool is used to reduce spread uncertainty of flux while soldering. Using this tool, the measurement of cleaning efficiency of flux after soldering for some typical alternative semi-aqueous cleaners and 1,1,1-TCE by weighing method was conducted. As the test result of cleaning efficiency for each cleaner at several different cleaning times, the precision of the data is confirmed to within about 4% relative standard deviation (RSD) range. So, it is considered that this would be a good evaluation method for evaluating the cleaning efficiency of the residual flux which remains after solder paste soldering in the alternative cleaning. The results of this test method shows that the cleaning efficiency of ST 100SX and Neozal 750H in the cleaning of residual flux was better than other semi-aqueous cleaners, but its cleaning efficiency was clearly inferior to 1,1,1-TCE.

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  Cite this article

[IEEE Style]

L. DK, "A Study on the Evaluation Methods of Residual Flux Cleaning Ability by Alternative Semi-Aqueous Cleaners Using Metal Test Tools After Soldering with Solder Paste," Clean Technology, vol. 14, no. 2, pp. 103-109, 2008. DOI: .

[ACM Style]

Lee DK. 2008. A Study on the Evaluation Methods of Residual Flux Cleaning Ability by Alternative Semi-Aqueous Cleaners Using Metal Test Tools After Soldering with Solder Paste. Clean Technology, 14, 2, (2008), 103-109. DOI: .

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