Abstract
We report in-situ optical reflectance monitoring during the metalorganic chemical vapor deposition (MOCVD) growth of (Al)GaN. In addition to the well-known thin film interference effect which enables a real-time determination of growth rate, we show that several insights about the MOCVD growth process can be gained by using this simple yet powerful technique. Illustrations from a variety of applications for in-situ reflectance monitoring, specifically the study of growth evolution, the control of alloy fractions, and the use of growth rate to gauge surface kinetics and gas injection will be reported.
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Ng, T.B., Han, J., Biefeld, R.M. et al. In-situ reflectance monitoring during MOCVD of AlGaN. J. Electron. Mater. 27, 190–195 (1998). https://doi.org/10.1007/s11664-998-0385-8
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DOI: https://doi.org/10.1007/s11664-998-0385-8