Abstract
Ni−B film of 1 μm thickness was electrolessly deposited on an electroplated Cu bus electrode. The film, which encapsulates the Cu bus electrodes, prevents Cu oxidation and serves as a diffusion barrier against Cu contamination of the transparent dielectric layer in a plasma display during the firing process at 580 °C. The microstructure of theas-deposited barrier film was amorphous phase and crystallized to Ni and Ni3B after annealing at 300 °C. The good barrier properties observed here can be explained by Ni3B precipitates at the grain boundaries acting as a fast diffusion path via pre-annealing at 300 °C before the firing process at 580 °C.
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Choi, J.W., Hwang, G.H., Han, W.K. et al. Pre-annealing effect of electroless Ni−B deposit as a diffusion barrier for electroplated Cu electrodes. Met. Mater. Int. 12, 75–80 (2006). https://doi.org/10.1007/BF03027527
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DOI: https://doi.org/10.1007/BF03027527