Patent ID: 8088223

Claim:
A substrate processing system comprising: a horizontal gas flow reaction chamber having an enclosed reaction space there within, said horizontal flow reaction chamber having a deposition reaction gas inlet opening and a gas outlet opening, wherein the inlet and outlet openings are substantially horizontally aligned; a substrate holder in the reaction space; a computer; and a plurality of injectors configured to produce a substantially horizontal unidirectional reaction gas flow through the inlet opening and directed toward the substrate holder and the outlet opening, each one of the plurality of injectors having an injector control mechanism operatively connected to the computer, wherein the injectors are positioned relative to the reaction chamber to control distribution of the horizontal unidirectional reaction gas flow across a width of the reaction chamber at a single moment in time, the width of the reaction chamber being oriented substantially horizontally in a direction substantially perpendicular to a direction of the horizontal unidirectional reaction gas flow; wherein the computer is programmed to selectively send control signals to the injector control mechanisms at pre-set times during a substrate deposition process recipe.