Method of forming structures with V shaped bottom on silicon substrate
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United States of America Patent
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Jan 27, 2017
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Jul 26, 2016
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The present disclosure generally relate to methods of processing a substrate in an epitaxy chamber. The method includes applying a passivating agent containing antimony to portions of a silicon substrate exposed through trenches formed in a dielectric layer on the silicon substrate, while applying the passivating agent containing antimony, exposing the silicon substrate to a group IV-containing precursor to form an epitaxial layer having a V-shaped structure having an exposed (111) plane at a bottom of the trenches, and forming a semiconductor layer on the epitaxial layer.
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