Patent ID: 7431767
Filing Date: 2008-10-07
Classification: C23C,C30B,H01J,Y10T

Abstract:
1. An apparatus for growing a thin film which comprises: (a) a reaction chamber; (b) a substrate mounted in the reaction chamber; (c) a gas inlet system for establishing a carrier gas flow into the reaction chamber and for introducing pulses of two or more reactants into the carrier gas flow upstream of the substrate, wherein at least one of the reactants comprises excited species and wherein the gas inlet system comprises a first gas inlet directly into the reaction chamber for providing a first reactant to the reaction chamber and a second gas inlet directly into the reaction chamber for providing excited species to the reaction chamber; and wherein the pulses of reactants are sufficiently separated to minimize reaction of reactant in adjacent pulses in the reaction chamber; (d) a gas outlet; and (e) a control system to provide for the timing of pulses of reactants.