SMTA China Conference Proceedings


The Application Research of VOC-free Flux

Authors: Liu Yunji, Zhu Ailan, Zhang Yuan
Company: Huawei Technologies Co., LTD.
Date Published: 4/22/2007   Conference: SMTA China


Abstract: VOC-free flux is more environmental. It is different from alcohol-based flux, because its solvent is water and solids is higher commonly. If we want to use VOC-free flux better, it must adapt appropriate equipment and optimized process. In this paper, it introduced key technology from three aspects including to improve equipment, optimize process, evaluate residue reliability. And it combined to the research and actually application. It ensured stability application and products long reliability by these methods. It increased process window for wave soldering and improved the assemble ability of wave soldering.

Key Words: VOC-free, Flux, Pray Control System, Residue Reliability



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