期刊
APPLIED PHYSICS LETTERS
卷 94, 期 1, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3065478
关键词
annealing; diffusion; elemental semiconductors; getters; helium; ion implantation; nanostructured materials; silicon; SIMOX; thin films; transmission electron microscopy; voids (solid)
A continuous buried oxide layer with a thickness of only 58 nm is formed in silicon by oxygen implantation at 185 keV with a very low ion fluence of 1x10(17) cm(-2) and subsequent He implantation. Due to the implanted He efficient oxygen gettering occurs at the implantation induced damage and results in the accumulation of the implanted oxygen as well as of oxygen indiffused from the annealing atmosphere. The morphology and the resistivity of the resulting silicon-on-insulator structure are analyzed by cross section transmission electron microscopy and by cross section scanning spreading resistance microscopy.
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