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Ball Grid Array Example bga-1 for the Surface Evolver

[Click for the bga-1.fe datafile in a second window.]

This is the simplest model of the BGA joint. The pads are fixed, parallel, concentric disks at a fixed separation. The solder completely wets both pads. The only energy is the surface tension of the solder, which is taken to be the default value of 1. There is no gravity.

hexagonal prism hexagonal prism
Conceptual model of initial shape. Labelling of datafile vertices and edges.
loaded surface after gogo
Triangulation upon loading. After gogo.

Notable features:

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This page last modified June 2, 2013
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