The structural deformations in the Si/SiGe system induced by thermal annealing
The structural deformations in Si/SiGe system during thermal annealing were investigated by means of atomic force microscope (AFM) and high-resolution X-ray diffraction (HRXRD). The (004) rocking curve measurements showed that the obvious fringes of rocking curve obtained from pre-annealing sample w...
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Veröffentlicht in: | Journal of materials science 2007-07, Vol.42 (14), p.5312-5317 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | The structural deformations in Si/SiGe system during thermal annealing were investigated by means of atomic force microscope (AFM) and high-resolution X-ray diffraction (HRXRD). The (004) rocking curve measurements showed that the obvious fringes of rocking curve obtained from pre-annealing sample were faded out gradually and disappeared completely with increasing the annealing temperature, which indicated that the abrupt Si/SiGe interface was destroyed gradually. The analyses of the peak broadening and relative position of the SiGe epilayer with respect to the Si substrate in high-resolution reciprocal space map (HRRSM) measurements described clearly the formation of mosaic structure in Si/SiGe system. The inner deformation induced the surface corrugate, known as crosshatch morphologies, which was analyzed by AFM measurements. |
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ISSN: | 0022-2461 1573-4803 |
DOI: | 10.1007/s10853-006-0901-2 |