Low-temperature silicon epitaxy by ultrahigh vacuum/chemical vapor deposition
- 24 March 1986
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 48 (12), 797-799
- https://doi.org/10.1063/1.96673
Abstract
We have successfully demonstrated the use of a novel chemical vapor deposition technique, ultrahigh vacuum/chemical vapor deposition, to deposit homoepitaxial silicon layers of high crystalline perfection at low temperatures (T≥750 °C). Rutherford backscattering and transmission electron microscopy showed the transition to epitaxial silicon growth took place in the range 700–750 °C, and secondary ion mass spectrometry showed typical oxygen and carbon levels to be near the detection limits of the technique 1016–1017 cm−3. In addition, abrupt dopant transitions have been demonstrated, with B levels dropping four orders of magnitude, 1019–1015 B/cm3, in the first 1000 angstroms of an intrinsic epilayer.Keywords
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