Patent ID: 8175736
Filing Date: 2012-05-08
Classification: C23C,C25D,H01L

Abstract:
1. A method of processing a substrate by chemical oxide removal (COR) comprising: determining a desired state for the substrate, wherein the desired state comprises target critical dimension (CD) data; receiving pre-process metrology data for the substrate, wherein the pre-process metrology data defines an input state for the substrate and comprises CD data for at least one feature; determining a process recipe for performing a chemical oxide removal (COR) process and a post-heat treatment (PHT) process by: processing the substrate to achieve the trim amount using the process recipe, the COR process including chemically treating the substrate by chemically altering exposed surface layers of a layer on the substrate and the PHT process including thermally treating the substrate to evaporate the chemically altered exposed surface layers of the layer on the substrate.