Interaction of deuterium with SIMOX buried oxide
We have studied SIMOX buried oxide samples implanted with D+ (10141015 cm?2) or annealed in D2 (300500 kPa at 1073 K). Thermal desorption spectrometry (TDS) performed on these samples after removal of the top Si layer shows two main peaks related to release of deuterium from SiD and SiOD defects. The first peak is dominant in implanted samples and the second in deuterium-annealed samples. In TDS experiments on samples with top layer the deuterium release is limited by diffusion in SiO2, D2-cracking at the Si/SiO2 interface and permeation through the top Si layer. In these samples the D2 signal is related to release through lateral surfaces, whereas the HD signal is produced by release through the top Si layer.
deuterium simox thermal desorption hydrogen ion implantation