Patent ID: 7488505
Filing Date: 2009-02-10
Classification: B05D,H01L

Abstract:
1. A coating film forming method comprising: a first coating step of moving a first coating nozzle, which is provided above a substrate, from the center of rotation of the substrate toward a peripheral edge of the substrate and discharging a coating liquid containing a coating film component and a solvent, while rotating the substrate horizontally held, to spirally apply the coating liquid to form a coating film on the substrate; a monitoring step of monitoring the state of the surface of the substrate in a coated region to detect an uncoated region generated in the coated region in which the coating liquid is applied by the first coating nozzle at the first coating step, the uncoated region being located at a radial distance from a center of the substrate; and a second coating step of applying the coating liquid so as to fill the uncoated region with the coating liquid by a second coating nozzle when the uncoated region is detected at the monitoring step.