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The Effects of Iron Contamination on Thin Oxide Breakdown -Experimental and Modeling

Published online by Cambridge University Press:  03 September 2012

Worth B. Henley ,
Lubek Jastrzebski  and
Nadim F. Haddad
Worth B. Henley
Affiliation:
Center for Microelectronics Research, University of South Florida
Lubek Jastrzebski
Affiliation:
Center for Microelectronics Research, University of South Florida
Nadim F. Haddad
Affiliation:
IBM Corporation, Manassas, VA
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Abstract

The effect of iron contamination in silicon on the properties of thermally grown thin oxides is studied through electrical modelling and experimental MOSDOT testing. Iron concentration is measured using a surface photovoltage / diffusion length technique. Failure mechanisms related to iron contamination are proposed. Contamination limits for various gate oxide thicknesses are defined. Experimental results show that reduction of oxide thickness from 20nm to lOnm requires a reduction in iron conntamination by 100 times.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 262: Symposium E – Defect Engineering in Semiconductor Growth, Processing and Device Technology , 1992 , 993
Copyright
Copyright © Materials Research Society 1992

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References

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