Patent ID: 6146464
Filing Date: 2000-11-14
Classification: H01L

Abstract:
A apparatus for depositing a layer of a material on a surface of a wafer comprising:a deposition chamber having a sidewall;a gas inlet formed through said sidewall;a gas outlet formed through said sidewall opposite said gas inlet;a plate having a continuous surface positioned in said deposition chamber; anda plurality of support posts coupled to and projecting from the continuous surface of the plate, said support posts being arranged in spaced relation in a pattern which permits a wafer to be seated on the support posts with the wafer being spaced from the surface of the plate said support posts being of a length to space the wafer from the surface of the plate a distance sufficient to allow gas to flow and/or diffuse between the surface of the plate and substantially the entire back surface of the wafer, but still allow heat transfer from the plate to the wafer mainly by conduction.