Cleaning methods and post-cleaning analysis are recent challenges! We will introduce examples of issues caused by flux residues.
Flux residue refers to the residue derived from flux that remains on the workpiece after soldering (contamination), and its components include ions, metal salts, and organic substances. Cleaning paste is formulated with the premise of cleaning, so if left as is, the likelihood of insulation failure due to migration and corrosion increases. Depending on the application, this can also affect human life and infrastructure, making cleaning necessary in some cases. On the other hand, in the case of no-clean paste, the flux residue stabilizes, but the number of cases requiring cleaning for reliability assurance is also increasing. *For detailed content of the column, please refer to the related link. For more information, feel free to contact us.*
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*You can view the detailed content of the column through the related link. For more information, please feel free to contact us.*
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Zestron is a global standard "flux cleaning agent manufacturer" based in Germany, with eight locations worldwide. Our cleaning agents are primarily environmentally friendly water-based cleaners that achieve a balance between cleaning performance and safety, while also enabling the reduction of organic solvents, VOCs, and overall usage to lower costs. At our technical center in Kanagawa, customers can choose from inline and batch-type spray cleaning equipment, as well as jet and ultrasonic devices, tailored to their needs, allowing them to test work cleaning under conditions equivalent to those in production environments. In parallel with the cleaning tests, we analyze cleanliness at our analysis center. Utilizing digital microscopes, FT-IR, ion chromatography, and SEM-EDX/EDS, we can detect flux residues that are often overlooked by visual inspection. After the tests are completed, our engineers will provide a technical report detailing recommended processes. *We generally offer support for cleaning process issues free of charge. If you have any requests or challenges related to flux cleaning, please feel free to contact us.