Abstract
This paper is concerned with the determination of the kinetic parameters and the chemical reactions that characterize the passivation of Pb centers with molecular hydrogen. Pb centers are paramagnetic defects at the (111) Si-SiO2 interface. In this study Pb centers associated with thermal oxides grown on (111) silicon substrates at 850 °C were measured with electron paramagnetic resonance. We observe that the Pb resonance appears to be unaffected by subsequent in situ vacuum anneals for temperatures up to at least 850 °C.