Trapping dependent H+ motion in SIMOX buried oxides
The transport characteristics of mobile H+ ions are examined in SIMOX buried oxides. The H+ ions are created in the buried oxides by annealing in H2 gas. The effects of applied oxide field and H+ concentration are investigated in order to develop a model for the mechanism of the H+ motion. Results suggest the H+ motion across the oxide is limited by the detrapping of the mobile charges from defects located near the top Si/SiO2 and substrate Si/SiO2 interfaces. Comparisons of the samples annealed under differing conditions indicate that the H+ trapping defects are created and/or modified during the hydrogenation.
si/sio2 interfaces hydrogen transport hydrogen trapping soi