Y. Kawazu et al., CHARACTERIZATION OF POLY-SI SIO2/SI(100) STRUCTURE BY VARIABLE-ANGLE SPECTROSCOPIC ELLIPSOMETRY/, Electronics Letters, 29(20), 1993, pp. 1758-1759
The structure of polycrystalline silicon (poly-Si)/SiO2/Si(100) was in
vestigated using variable-angle spectroscopic ellipsometry (VASE) meas
urement with the Bruggeman effective medium approximation model. In th
is structure, the poly-Si and SiO2 film thicknesses and poly-Si compos
ition, as well as the top surface roughness, can be characterised well
. The VASE results are very close to those obtained by cross-sectional
transmission electron microscopy.