Abstract
We have found excellent electrical characteristics in germanium oxide grown by plasma oxidation for germanium metal-insulator-semiconductor gate dielectric applications. An oxygen plasma stream generated by electron cyclotron resonance was used to oxidize a germanium surface without substrate heating. A transmission electron microscope observation revealed that the obtained germanium oxide/germanium interface is atomically smooth. The energy distribution of interface trap density (D it) in the upper half of the p-type germanium band gap was measured by the ac conductance method. It is shown that the D it at the midgap is ∼6 ×1010 cm-2·eV-1 and increases exponentially as the energy increases to the conduction-band edge.
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Dates
Type | When |
---|---|
Created | 19 years, 10 months ago (Oct. 18, 2005, 6:15 a.m.) |
Deposited | 2 years, 8 months ago (Dec. 19, 2022, 1:12 p.m.) |
Indexed | 3 weeks, 4 days ago (Aug. 12, 2025, 5:44 p.m.) |
Issued | 20 years ago (Sept. 1, 2005) |
Published | 20 years ago (Sept. 1, 2005) |
Published Online | 19 years, 11 months ago (Sept. 22, 2005) |
Published Print | 20 years ago (Sept. 1, 2005) |
@article{Fukuda_2005, title={Electrical Characterization of Germanium Oxide/Germanium Interface Prepared by Electron-Cyclotron-Resonance Plasma Irradiation}, volume={44}, ISSN={1347-4065}, url={http://dx.doi.org/10.1143/jjap.44.6981}, DOI={10.1143/jjap.44.6981}, number={9S}, journal={Japanese Journal of Applied Physics}, publisher={IOP Publishing}, author={Fukuda, Yukio and Ueno, Tomoo and Hirono, Shigeru and Hashimoto, Satoshi}, year={2005}, month=sep, pages={6981} }