Установка электрохимического профилирования для диагностирования эпитаксиальных структур GaAs

An electrochemical profiling setup for semiconductor structures has been developed, in which the concentration of free charge carriers is determined from the capacitance–voltage characteristics of the electrolyte–semiconductor barrier, while scanning through the thickness of epitaxial layers is perf...

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Bibliographic Details
Date:2005
Main Authors: Vakiv, N. M., Zaverbniy, I. R., Zayachuk, D. M., Krukovsky, S. I., Mrykhin, I. O.
Format: Article
Language:Ukrainian
Published: PE "Politekhperiodika", Book and Journal Publishers 2005
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Online Access:https://www.tkea.com.ua/index.php/journal/article/view/TKEA2005.3.40
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Journal Title:Technology and design in electronic equipment

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Technology and design in electronic equipment
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Summary:An electrochemical profiling setup for semiconductor structures has been developed, in which the concentration of free charge carriers is determined from the capacitance–voltage characteristics of the electrolyte–semiconductor barrier, while scanning through the thickness of epitaxial layers is performed by photoelectrochemical etching of the semiconductor. Using GaAs epitaxial structures as an example, high measurement accuracy of carrier concentration to a depth of at least 10 μm has been demonstrated.