In-situ post epitaxial treatment process
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United States of America Patent
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Oct 26, 2004
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app pub date -
Mar 12, 2003
filing date -
Jun 30, 1998
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Abstract
A process for forming an epitaxial layer on a semiconductor wafer substrate is provided. The process comprises providing a semiconductor wafer substrate and an area for forming an epitaxial layer on said semiconductor wafer substrate. The formation area consists essentially of an epitaxial layer process chamber. The semiconductor wafer substrate is introduced into the epitaxial layer process chamber and an epitaxial layer is formed on at least one surface of the semiconductor wafer substrate. At least one epitaxial layer surface is substantially hydrophobic. Then, a chemical reagent is introduced into said epitaxial layer process chamber. The chemical reagent reacts with the epitaxial layer surface in situ to form an outer layer.
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