Patent ID: 11885018
Assignee: LEHIGH UNIVERSITY
Field: Surface technology, coating (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A method for forming a film on a substrate, the method comprising:
translating the substrate in a circular path through a material deposition apparatus;
consecutively exposing the wafer to two or more process chambers of the apparatus each containing source gases with one or more volatile reactive species;
forming a boundary layer adjacent to the substrate beneath the process chambers; and
mixing the source gases from each process chamber in the boundary layer;
wherein the source gases are partially reacted when exposed to the wafer with each pass allowing the source gases including some unreacted gas to carry over in the boundary layer to the next succeeding chamber for reaction;
wherein a film gradually grows in thickness on the substrate with each successive pass and exposure of the substrate to the one or more volatile reactive species from each of the process chambers.