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High-k Al2O3 gate dielectrics prepared by oxidation of aluminum film in nitric acid followed by high-temperature annealing

Authors :
Chih-Sheng Kuo
Jui-Feng Hsu
Szu-Wei Huang
Lurng-Shehng Lee
Ming-Jinn Tsai
Jenn-Gwo Hwu
Source :
IEEE Transactions on Electron Devices. June, 2004, Vol. 51 Issue 6, p854, 5 p.
Publication Year :
2004

Abstract

An aluminum oxide (Al2O3) gate dielectric is prepared by oxidation of ultrathin Al film in nitric acid (HNO3) at room temperature then followed by high-temperature annealing in O2 and N2. It was shown that the Al2O3 gate dielectrics with initial oxide exhibit better electrical properties than those without oxide.

Details

Language :
English
ISSN :
00189383
Volume :
51
Issue :
6
Database :
Gale General OneFile
Journal :
IEEE Transactions on Electron Devices
Publication Type :
Academic Journal
Accession number :
edsgcl.122093292