Patent ID: 8334218
Filing Date: 2012-12-18
Classification: C23C,H01J,H01L

Abstract:
1. A method of controlling conformality of a deposited film on a semiconductor substrate comprising a plurality of openings at a surface thereof, the method comprising: alternately and sequentially contacting the substrate with at least two different reactants, wherein an under-saturated dose of at least one of the reactants has been predetermined and the under-saturated dose is provided uniformly across the substrate surface such that the deposited film less than fully covers surfaces of the openings and is deposited to a desired depth, wherein the first reactant is adsorbed on the surface of the substrate to form a monolayer or less and the second reactant reacts with the adsorbed monolayer, wherein the second reactant is plasma activated and wherein the method further comprises selecting plasma conditions such that the under-saturated dose is provided.