Patent ID: 7658800
Filing Date: 2010-02-09
Classification: C23C

Abstract:
1. A gas distribution assembly, comprising: a reactant gas supply plate which is coupled in fluid flowing relation relative to at least first and second reactant gases; at least one reactant gas distribution plate coupled in fluid receiving relation relative to the reactant gas supply plate for substantially evenly distributing at least one of the first and second reactant gases and wherein the reactant gas distribution plate is located between the reactant gas supply plate, and a reactant gas delivery face plate, and wherein the reactant gas distribution plate has a top surface which is juxtaposed relative to the bottom surface of the reactant gas supply plate, and an opposite bottom surface which is juxtaposed relative to the reactant gas delivery plate, and wherein a plurality of gas channeling blocks are positioned in predetermined spaced relation on the top surface of the reactant gas distribution plate, and extend normally upwardly relative thereto, and wherein each of the gas channeling blocks have a third plurality of reactant gas passageways formed therein and which extend through the respective gas channeling blocks to the bottom surface of the reactant gas distribution plate, and wherein the plurality of gas channeling blocks are spaced in a predetermined pattern so as to define a first plurality of major substantially radially extending reactant gas distribution passageways, and wherein the plurality of gas channeling blocks further define a plurality of minor reactant gas distribution passageways therebetween the respective gas channeling blocks; and the reactant gas delivery face plate coupled in fluid receiving relation relative to the reactant gas distribution plate, and wherein the first and second reactant gases remain separated as they pass through the reactant gas supply plate, gas distribution plate and gas delivery face plate and then further exit the reactant gas delivery face plate in a substantially evenly distributed fashion.