DocumentCode
1441395
Title
Total dose effects in composite nitride-oxide films
Author
Lee, Sung-Chul ; Raparla, A. ; Li, Y.F. ; Gasiot, G. ; Schrimpf, R.D. ; Fleetwood, D.M. ; Galloway, K.F. ; Featherby, M. ; Johnson, D.
Author_Institution
Dept. of Electr. Eng. & Comput. Sci., Vanderbilt Univ., Nashville, TN, USA
Volume
47
Issue
6
fYear
2000
fDate
12/1/2000 12:00:00 AM
Firstpage
2297
Lastpage
2304
Abstract
Total dose effects in composite nitride-oxide (NO) films with nitride thicknesses from 58 nm to 183 nm and oxide thicknesses from 5 nm to 30 nm are studied. A model is proposed in order to relate the threshold-voltage shift to the NO thickness combinations. It is found that the electron-hole pairs generated in the bulk of the nitride do not contribute significantly to shifting the threshold-voltage. The NO films with 10 nm oxide show smaller threshold-voltage shift than composite films with any other oxide thicknesses
Keywords
MIS structures; X-ray effects; dielectric thin films; MNOS structure; Si3N4-SiO2; X-ray irradiation; composite nitride-oxide film; electron-hole pair; threshold voltage; total dose effect; Capacitors; Degradation; Dielectric thin films; Electron traps; Ionizing radiation; MOSFETs; Power transistors; Radiation effects; Silicon compounds; Threshold voltage;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/23.903768
Filename
903768
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