Patent ID: 8533949

Claim:
A method of manufacturing a component, the method comprising: forming one or more grooves in an outer surface of a substrate, wherein each of the one or more grooves extends at least partially along the surface of the substrate and has a base, a top and at least one discharge end; forming a run-out region adjacent to the discharge end of each of the one or more grooves, such that at least one run-out region is formed for each groove, and such that each run-out region extends away from the discharge end of the respective groove, wherein the run-out region for one of the one or more grooves is wider than the groove; and disposing a coating over at least a portion of the surface of the substrate, wherein the one or more grooves and the coating define one or more channels for cooling the component, wherein the coating does not bridge the one or more run-out regions, such that each of the one or more run-out regions forms a film hole for the respective one of the one or more grooves.