Вплив гетерування на процес формування алюмінієвого омічного контакту

The study considers the reasons and mechanisms of degradation of reverse characteristics of varicaps with aluminum-based ohmic contacts. The authors present and analyze the experimental results on how gettering affects the reverse current of varicaps, as well as possible mechanisms of such effect. G...

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Datum:2020
Hauptverfasser: Litvinenko, Victor, Baganov, Yevgen, Vikulin, Ivan, Gorbachev, Victor
Format: Artikel
Sprache:English
Veröffentlicht: PE "Politekhperiodika", Book and Journal Publishers 2020
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Online Zugang:https://www.tkea.com.ua/index.php/journal/article/view/TKEA2020.1-2.45
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Назва журналу:Technology and design in electronic equipment

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Technology and design in electronic equipment
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Zusammenfassung:The study considers the reasons and mechanisms of degradation of reverse characteristics of varicaps with aluminum-based ohmic contacts. The authors present and analyze the experimental results on how gettering affects the reverse current of varicaps, as well as possible mechanisms of such effect. Gettering was performed with a getter site created on the back side of the substrate before the epitaxial layer is deposited on the working side of the substrate. The article demonstrates that the proposed technology using gettering is rather effective in reducing the level of reverse currents and in increasing the yield of devices.