Influence of gettering on aluminum ohmic contact formation

Autor: Litvinenko V. N., Baganov Ye. A., Vikulin І. M., Gorbachev V. E.
Jazyk: English<br />Russian
Rok vydání: 2020
Předmět:
Zdroj: Tekhnologiya i Konstruirovanie v Elektronnoi Apparature, Iss 1-2, Pp 45-50 (2020)
Druh dokumentu: article
ISSN: 2225-5818
2309-9992
84477458
DOI: 10.15222/TKEA2020.1-2.45
Popis: 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.
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