1950°C Post Implantation Annealing of Al+ Implanted 4H-SiC: Relevance of the Annealing Time
ECS JOURNAL OF SOLID STATE SCIENCE AND TECHNOLOGY(2016)
摘要
Previous studies have shown that the electrical activation of a given implanted Al concentration in 4H-SiC increases with the increasing of the post implantation annealing temperature up to 1950-2100 degrees C and different annealing times in the range 0.5-5 min. This study shows that, at 1950 degrees C, the electrical activation of Al implanted in 4H-SiC increases with the increase of the annealing time up to attain saturation for annealing times longer than 22 min. Samples were obtained from the same Al implanted HPSI 4H-SiC wafer with an implanted Al concentration lower than the Al solubility limit in 4H-SiC at the annealing temperature of 1950 degrees C. The annealing time was varied in the range 5-40 min. (C) The Author(s) 2016. Published by ECS. All rights reserved.
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