Published April 2007 | Version v1
Journal article

Electric characteristics of Si3N4 films formed by directly radical nitridation on Si(110) and Si(100) surfaces

  • 1. Tohoku Univ., Graduate School of Engineering, Sendai, Miyagi (Japan)

Description

High quality Si3N4 film was formed by the nitridation of Si(110) surface using radical NH. It was found that the gate leakage current through the Si3N4 film is three orders of magnitude smaller than that through the conventional SiO2 film, and the interface states density at midgap for Si3N4/Si interface is less than 5x1010 eV-1 cm-2. High-resolution soft-X-ray-excited Si 2p spectra were measured for the Si3N4 films formed on Si(100), Si(110) and Si(111). It was found that the crystal orientation of the Si substrate affects the amount of intermediate nitridation states of Si at the Si3N4/Si interface. (author)

Additional details

Publishing Information

Journal Title
Japanese Journal of Applied Physics. Part 1, Regular Papers, Brief Communications and Review Papers
Journal Volume
46
Journal Issue
4B
Journal Page Range
p. 1895-1898
ISSN
0021-4922

Optional Information

Notes
19 refs., 9 figs., 1 tab.