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http://dx.doi.org/10.5757/JKVS.2013.22.1.26

A Study on the Etching Effect and the Capacitance of Aluminum Oxide Thin Film by Oxygen Ion Beam  

Cho, E.S. (Department of Electronics, Gachon University)
Kwon, S.J. (Department of Electronics, Gachon University)
Publication Information
Journal of the Korean Vacuum Society / v.22, no.1, 2013 , pp. 26-30 More about this Journal
Abstract
For the realization of high-k insulator, aluminum oxide ($Al_2O_3$) was deposited by using an oxygen ion beam assisted deposition (IBAD) during e-beam evaporation. From the thickness of the $Al_2O_3$ layer evaporated with IBAD process, it was possible to investigate the etching effect of ion beam at higher energies during e-beam evaporation. It was also possible to obtain a higher capacitance as a result of IBAD in spite of the reduced thickness of $Al_2O_3$.
Keywords
Aluminum oxide; Oxygen ion beam assisted deposition; Etching effect; Capacitance;
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