Effect of microwave plasma treatment on silicon dioxide films grown by atomic layer deposition at low temperature

The effects of microwave plasma treatments on the physical and electrical characteristics of silicon dioxide films are discussed. Plasma treatments significantly improve the characteristics at low temperatures. Differences in the type of inert gas, O2 partial pressure, and total pressure cause diffe...

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Bibliographic Details
Published in:Journal of applied physics 2013-02, Vol.113 (6)
Main Authors: Tanimura, T., Watanabe, Y., Sato, Y., Kabe, Y., Hirota, Y.
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DEPOSITION
ELECTRIC CONDUCTIVITY
Impurities
Inert
LAYERS
Microwave plasmas
MICROWAVE RADIATION
Oxide coatings
PARTIAL PRESSURE
PLASMA
Plasma (physics)
Silicon dioxide
SILICON OXIDES
THIN FILMS
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Summary:The effects of microwave plasma treatments on the physical and electrical characteristics of silicon dioxide films are discussed. Plasma treatments significantly improve the characteristics at low temperatures. Differences in the type of inert gas, O2 partial pressure, and total pressure cause differences in the plasma energy and active species concentrations, which affect reduction in the impurity concentrations, generation of dangling bonds, and effective working depth of the plasma. The changes in the electrical characteristics of the plasma-treated oxide films are consistent with those in the physical characteristics. The plasma conditions that result in the best improvements are determined.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.4790884