Формирование резких границ раздела в эпитаксиальных структурах p+-AlGaAs/n-GaAs методом МОС-гидридной эпитаксии

The complexity of forming sharp and high-quality boundaries in p+AlGaAs/n-GaAs systems by MOCVD method is caused by differing on 80–120°С optimal crystallization temperature of GaAs layers and n-AlGaAs solid solutions. A method of forming qualitative hetero boundaries under conditions of co...

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Bibliographic Details
Date:2014
Main Authors: Vakiv, N. M., Krukovskii, S. I., Larkin, S. Yu., Avksent'ev, A. Yu., Krukovskii, R. S.
Format: Article
Language:Ukrainian
Published: PE "Politekhperiodika", Book and Journal Publishers 2014
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Online Access:https://www.tkea.com.ua/index.php/journal/article/view/TKEA2014.2-3.61
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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:The complexity of forming sharp and high-quality boundaries in p+AlGaAs/n-GaAs systems by MOCVD method is caused by differing on 80–120°С optimal crystallization temperature of GaAs layers and n-AlGaAs solid solutions. A method of forming qualitative hetero boundaries under conditions of continuous growth at changing crystallization temperature from 600–700°C has been developed. It has been determined that the crystallization of p+-AlGaAs: Zn solid solution layer on the surface of n-GaAs:Si layer, with increasing the crystallization temperature in the temperature range of 600–760°C at a rate 8–10 °C/min allows to crystallize sharp impurity boundary between the layers of p- and n-type conductivity. The method of forming sharp hetero boundaries in p-GaAs:Zn/n-GaAs:Si systems can be used for manufacturing wide range of epitaxial structures.