Along with a case study on cleaning defects due to high-density implementation, we will also provide guidance on methods for restructuring the cleaning process!
We would like to introduce a case study on the investigation of factors leading to cleaning failures due to flux cleaning troubles caused by the high density of component mounting. With the increase in the density of component mounting, a change in the solder paste used was made, but there have been reports of defects believed to be caused by cleaning issues. Based on the information gathered, we inferred the current situation. We conducted an analysis and evaluation of the hypotheses and proposed both temporary and permanent measures tailored to the customer's circumstances based on the results. [Case Overview] ■ Issues - Cleaning performance of flux in low stand-off areas ■ Conclusion - Stable operation is difficult under the current cleaning conditions ■ Permanent improvement measures and proposals - Review of cleaning agents and cleaning processes suitable for the work shape and flux *For more details, please download the PDF or 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.