Oxygen Behavior Around Heavily Doped Ultra-Shallow Junction in Si

The diffusion and gettering of oxygen are investigated after low-energy arsenic implantation and furnace annealing of SiO2/Si structures. Secondary ion mass spectrometry was used for examination of arsenic and oxygen depth profiles. It is shown that arsenic-doped ultra-shallow junction in Si stimulates the background oxygen gettering by SiO2/Si interface at the annealing temperatures higher than 850 C.