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http://dx.doi.org/10.3795/KSME-B.2012.36.1.047

Drag Force on Bubbles for Fluidic Self-Assembly  

Im, Hyeon-Seung (Convergent Technology R&D Division, Korea Institute of Industrial Technology)
Lee, Sung-Ho (Convergent Technology R&D Division, Korea Institute of Industrial Technology)
Publication Information
Transactions of the Korean Society of Mechanical Engineers B / v.36, no.1, 2012 , pp. 47-54 More about this Journal
Abstract
We developed a novel method of fluidic self-assembly to replace the conventional pick-and-place method. This method is cheaper and more effective than the previous method. For this research, we compared mathematical models with experimental results using the parameters of the drag force, the capillary force, and the restoring force for effective chip assembly, and the results for the alignment to the substrate. We obtained a 96.5% attach rate and $5^{\circ}$-misalignment to the substrate in a 500 ${\mu}m$ solder ball.
Keywords
Fluidic Self-Assembly; Capillary Force; Drag Force;
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