Abstract
Sandwich stacked Ti/Cu/Si thin films were deposited on a single-side polished Si(111) substrate using DC magnetron sputtering system and annealed using a rapid thermal annealing (RTA) system. Complex dendritic patterns, whose branches are composed of Cu rods and triangular Cu microcrystals were obtained on Ti/Cu thin film annealed at 700[Formula: see text]C. The shape of one triangular Cu microcrystal is a truncated equilateral triangular pyramid with a flat top. Triangular Cu microcrystals grow in the number when Ti/Cu thin films are annealed at 800[Formula: see text]C. Experimental results show that anisotropy affects the growth of surface patterns and the top Ti capping layer works as a protection for the underlying Cu layer from oxidation.
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