Patent ID: 7910166
Filing Date: 2011-03-22
Classification: C23C,H01L,Y10T

Abstract:
1. A method for depositing a material on a substrate, comprising: introducing a material including a powder and a carrier gas into a first chamber including an interior, wherein the first chamber is tubular and comprises: heating the material such that at least a portion of the material vaporizes into a vapor and passes through the filter; passing the vapor through at least one of the plurality of distribution holes in the first chamber into a second chamber, wherein the second chamber is tubular and is positioned outside the first chamber so that the second tubular chamber sheaths at least a portion of the first tubular chamber, and the second chamber is positioned to provide a material flow for the vapor that is sufficiently indirect to mix the vapor and the carrier gas into a substantially uniform vapor/carrier gas composition; and directing the substantially uniform vapor/carrier gas composition through an outlet proximate to the second chamber and toward a surface of a substrate proximate to the second chamber and having a temperature lower than the vapor.