A Some fundamental properties of silicon nitride deposition by electron cyclotron resonance plasma-enhanced chemical vapour deposition have been studied. Silane and nitrogen were used to deposit the layers used for the study. The deposition temperature was maintained above 500°C in order to ensure that the hydrogen content of the film was marginally small, which was confirmed by X-ray photoelectron spectroscopy measurement. It was observed that, in order to deposit stoichiometric Si3N4 films, the flux of the volatile component nitrogen must be increased until the [N2]/[SiH4] ratio is well above 25. The leakage currents in both silicon-rich and stoichiometric films were investigated. The measured refractive index of the films was used to highlight the role of various species during the deposition of the films.
|Original language||English (US)|
|Number of pages||15|
|Journal||Philosophical Magazine B: Physics of Condensed Matter; Statistical Mechanics, Electronic, Optical and Magnetic Properties|
|State||Published - May 1996|
ASJC Scopus subject areas
- Chemical Engineering(all)
- Physics and Astronomy(all)