Patent ID: 8895108

Claim:
A method for forming a thin film, comprising: routing a source precursor from an injection port of a deposition reactor into a first region, a second region and a third region between the first and second regions, a region extending from the first region to the second region having a same constant height greater than a predetermined distance that is smaller than 5 mm; routing a first portion of radicals of a reactant precursor to the first region but not to the third region; routing a second portion of the radicals to the second region but not to the third region; mixing the first portion of the radicals and the source precursor in the first region to form a first mixture; mixing the second portion of the radicals and the source precursor in the second region to form a second mixture; forming a first thin film on a portion of the surface of a substrate by exposing the portion of the surface of the substrate to the first mixture within the first region; discharging the radicals and the source precursor in the first region via a first passage having a constant height lower than the predetermined distance, the first passage formed between the surface of the substrate and a surface of the deposition reactor facing the surface of the substrate; making a first relative movement between the substrate and the deposition reactor in the direction parallel to the surface of the substrate; exposing the portion of the surface of the substrate to the source precursor within the third region after making the first relative movement; making a second relative movement between the substrate and the deposition reactor in the direction parallel to the surface of the substrate; forming, after making the second relative movement, a second thin film on the first film by exposing the first film to the second mixture in the second region; and discharging the radicals and the source precursor in the second region via a second passage having a constant height lower than the predetermined distance, the second passage formed between the surface of the substrate and a surface of the deposition reactor facing the surface of the substrate.