Patent ID: 6783590
Filing Date: 2004-08-31
Classification: C23C,C30B,Y10T

Abstract:
A method for growing thin films onto a surface of a substrate by exposing the substrate to alternatively repeated surface reactions of vapor-phase reactants, the method comprising the steps of:providing a first reactant source; providing am inactive gas source; feeding a first reactant from the first reactant source in the form of repeated alternating pulses to a reaction chamber via a first conduit; allowing the first reactant to react with the surface of the substrate in the reaction chamber; feeding inactive gas from the inactive gas source into the fist conduit via a second conduit that is connected to the first conduit at a first connection point so as to create a gas phase barrier between the repeated alternating pulses of the first reactant entering the reaction chamber; and withdrawing the inactive gas from said first conduit via a third conduit connected to the first conduit at a second connection point.