Abstract
The resistance of β-tin decreases by 10% under electromigration because of the anisotropic properties of the material during electromigration and the consequent rotation of grains. The diameter of the grains was measured ex situ and the angle of the rotating grains was directly calculated. The angle of rotating grains increased in proportion to the time for which the current was applied. At higher temperature, at which electromigration effect was stronger, an unexpected rotation behavior was observed. The kinetics of atomic movement along the a and c axes under various test conditions is discussed.
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