Introducing a comprehensive cleanliness evaluation case using FT-IR and SEM-EDS! This highlights the importance of analysis in the cleaning of fine joints.
As electronic devices become more advanced and compact, the importance of fine solder paste in high-reliability fields such as power semiconductors, automotive, and industrial equipment is increasing. However, the growing demand for reduced electrode spacing, fine pitch, and low stand-off mounting has brought to light the risks associated with flux residue after soldering, which previously did not pose a problem, affecting insulation reliability and the quality of subsequent processes. For these reasons, there is an increasing number of situations where a decision must be made regarding whether or not to perform flux cleaning from the perspective of ensuring reliability, making the cleaning of high-performance solder paste and flux a new challenge. In this study, in collaboration with Japan Superior Co., we focused on the "high-reliability solder paste for fine bonding" developed by the company, examining the cleaning characteristics in fine bonding and verifying the usefulness of evaluation through FT-IR and SEM-EDS based on chemical analysis. *For detailed content of the article, please refer to the related link. For more information, feel free to download the PDF or contact us directly.*
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*You can view the detailed content of the article through the related links. For more information, please download the PDF or feel free to contact us.*
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*You can view the detailed content of the article through the related link. For more information, 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.
