DocumentCode
808401
Title
High quality oxynitride gate dielectrics prepared by reoxidation of NH3-nitrided SiO2 in N2O ambient
Author
Han, L.K. ; Kim, J. ; Yoon, G.W. ; Yan, J. ; Kwong, D.L.
Author_Institution
Microelectron. Res. Center, Texas Univ., Austin, TX, USA
Volume
31
Issue
14
fYear
1995
fDate
7/6/1995 12:00:00 AM
Firstpage
1196
Lastpage
1198
Abstract
The significant advantages of reoxidation of NH3-nitrided SiO2 using N2O, as opposed to O2 in a rapid thermal system have been demonstrated. MOS capacitors with N2O-reoxidised NH3-nitrided SiO 2 show improved charge-to-breakdown characteristics and suppressed interface state generation under both injection polarities compared to those with pure SiO2 and O2-reoxidised NH3-nitrided SiO2. Significant reduction of nitridation-induced traps by N2O reoxidation is mainly responsible for these improvements
Keywords
MOS capacitors; nitridation; oxidation; rapid thermal processing; MOS capacitors; N2O; N2O ambient; NH3; NH3-nitrided SiO2; SiO2; SiON; charge-to-breakdown characteristics; injection polarities; interface state generation; oxynitride gate dielectrics; rapid thermal system; reoxidation; traps;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19950806
Filename
398622
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