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Electrokinetics and Stability of Solder Powders in Aqueous Media
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class="card-body"><strong>Paper Count:</strong> 87410</div> </div> </div> </div> <div class="card publication-listing mt-3 mb-3"> <h5 class="card-header" style="font-size:.9rem">Electrokinetics and Stability of Solder Powders in Aqueous Media</h5> <div class="card-body"> <p class="card-text"><strong>Authors:</strong> <a href="https://publications.waset.org/abstracts/search?q=Terence%20Lucero%20F.%20Menor">Terence Lucero F. Menor</a>, <a href="https://publications.waset.org/abstracts/search?q=Manolo%20G.%20Mena"> Manolo G. Mena</a>, <a href="https://publications.waset.org/abstracts/search?q=Herman%20D.%20Mendoza"> Herman D. Mendoza</a> </p> <p class="card-text"><strong>Abstract:</strong></p> Solder pastes are widely used in creating mechanical, thermal and electrical connection between electronic components. Continued miniaturization of consumer electronics drives manufacturers to achieve smaller, lighter, and faster electronic packages at low cost. This faces them to the difficult challenge of dispensing solder pastes in extremely precise and repeatable manner. The most common problem in solder paste dispensing is the clogging of dispensers which results from agglomeration and settling of solder powders leading to increase on the effective particle size and uneven distribution of particles in the mixture. In this work, microelectrophoresis was employed to investigate the effect of pH and KNO₃ concentration on the electrokinetic behavior and stability of SAC305, PbSn5Ag2.5 and Sn powders in aqueous media. Results revealed that the electrokinetic behavior of the three types of solder powders are similar, which was attributed to high SnO₂ content on the surface of the particles. Electrokinetic measurements showed that the zeta potentials of the solder powders are highly dependent on pH and KNO₃ concentration with isoelectric points ranging from 3.5 to 5.5. Results were verified using stability tests. <iframe src="https://publications.waset.org/abstracts/74846.pdf" style="width:100%; height:400px;" frameborder="0"></iframe> <p class="card-text"><strong>Keywords:</strong> <a href="https://publications.waset.org/abstracts/search?q=electrokinetic%20behavior" title="electrokinetic behavior">electrokinetic behavior</a>, <a href="https://publications.waset.org/abstracts/search?q=isoelectric%20point" title=" isoelectric point"> isoelectric point</a>, <a href="https://publications.waset.org/abstracts/search?q=solder%20powder" title=" solder powder"> solder powder</a>, <a href="https://publications.waset.org/abstracts/search?q=stability" title=" stability"> stability</a>, <a href="https://publications.waset.org/abstracts/search?q=surface%20analysis" title=" surface analysis"> surface analysis</a> </p> <a href="https://publications.waset.org/abstracts/74846/electrokinetics-and-stability-of-solder-powders-in-aqueous-media" class="btn btn-primary 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