Me. Zvanut et al., The effect of confinement and temperature on the initial hole trapping efficiency of buried oxide films, MICROEL ENG, 48(1-4), 1999, pp. 347-350
Vacuum ultraviolet hole injection was used to study the initial trapping pr
operties of three different types of buried oxides, SIMOX, Unibond, and pol
ySi/SiO2/Si samples. After accounting for the charge centroid, the initial
hole trapping efficiency for SIMOX samples is shown to be at least a factor
of four greater than that measured for Unibond buried oxides. We suggest t
hat the difference is due to the post fabrication anneal temperature and th
e lack of moisture in the ambient during the anneal.