Abstract
The influence of rapid thermal annealing in vacuum on the properties of thermally grown SiO2 has been investigated by means of high-field Fowler-Nordheim tunnelling injection and breakdown field techniques. The results indicate that the rapid thermal annealing process anneals the original electron traps in the oxide but at the same time introduces a positive charge. These two mechanisms are a strong function of the technological history of the samples and of the oxide quality. Rapid thermal annealing in vacuum improves the properties of the as-grown oxides without conventional post-oxidation annealing in N2 but degrades the oxides that are preliminarily annealed in N2. The extent of the improvement (degradation) depends on the temperature of rapid annealing (1073-1473 K).
Published Version
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