Effectiveness of a periodic annealing method to coarsen Cu grains in very narrow trenches
We proposed a new annealing method to coarsen Cu grains in very narrow trenches. We identified the best annealing pattern using the phase field simulation method. The best conditions achieved a 98% increase in the diameter of the Cu grains. A preliminary experiment confirmed the effectiveness of the new annealing method.
periodic annealing method cu grains very narrow trenches phase field simulation grain diameter