Abstract
We investigated the thermal stability of e-beam deposited Mo/B4C/Si/B4C layered systems, with and without ion assistance during the growth of the B4C diffusion barrier layers. The thermal stability was investigated by in situ thermal annealing during grazing incidence X-ray reflection. By studying partially treated B4C barrier layers, we found that the improvement in thermal stability is caused by an enhanced density of the B4C layer.
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