Patent ID: 7407892
Filing Date: 2008-08-05
Classification: C23C

Abstract:
1. A deposition method, comprising: providing a stack of semiconductor substrates within a reaction chamber of a deposition apparatus; heating the semiconductor substrates to a first temperature within the reaction chamber; providing a surface within the reaction chamber that is heated to at least about the first temperature; the surface being spaced from the stack of semiconductor substrates by a distance; flowing deposition material toward the surface and thereafter toward the stack of semiconductor substrates; the deposition material interacting with the heated surface so that side reactions occur; the side reactions generating one or more problematic products; the distance between the heated surface and the stack of semiconductor substrates being sufficient so that substantially none of the one or more problematic products reaches the stack of semiconductor substrates; wherein the deposition material is flowed toward the stack of semiconductor substrates through a port that is a last port along the path of deposition material flow; and wherein the heated surface is a surface of a plate provided in the reaction chamber between the port and the stack of semiconductor substrates.