Patent ID: 6784103
Filing Date: 2004-08-31
Classification: B82Y,H01L

Abstract:
A method of forming nanocrystals comprising:elevating a temperature of a substrate within a chamber to a first temperature in a range sufficient to react a precursor gas on a surface of the substrate within the chamber, while maintaining walls of the chamber at a second temperature substantially lower than the first temperature; rotating the substrate about an axis perpendicular to the source of the substrate sufficient for providing process uniformity across the substrate; flowing a co-flow gas at a sufficient flow rate within the chamber and maintaining a process pressure in order to form and maintain a thermal boundary layer overlying the surface of the substrate; introducing the precursor gas as a reactant gas into the chamber, wherein a portion of the precursor gas partially dissociates within the thermal boundary layer; and forming nanocrystals overlying the surface of the substrate in response to exposing the substrate to a partial dissociation of the precursor gas within the thermal boundary layer within the chamber.