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South African Journal of Science
versión On-line ISSN 1996-7489
versión impresa ISSN 0038-2353
Resumen
THERON, C.; MOKOENA, N. y NDWANDWE, O.M.. Solid-state compound phase formation of TiSi2 thin films under stress. S. Afr. j. sci. [online]. 2009, vol.105, n.11-12, pp.440-444. ISSN 1996-7489.
Different stress situations were created on an Si(100) wafer by depositing either Si3N4 or SiO2 thin films on the back side. Si3N4 has a different thermal expansion coefficient from that of SiO2. A thin Ti film was then deposited on the front side of the Si wafer. The structures were then annealed at various high temperatures for different periods of time. Real-time Rutherford backscattering spectrometry, as well as sample curvature measurements, were used to characterise the samples. Different reaction rates were found between Si3N4-deposited samples and SiO2-deposited samples.
Palabras clave : stress; thin films; real-time Rutherford backscattering spectrometry; phase formation; TiSi2; diffusion.
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