Patent ID: 8053021
Filing Date: 2011-11-08
Classification: B05B,B05C

Abstract:
1. An operating method of a coating apparatus, comprising: removing a coated first substrate from atop a stage; cleaning said stage using a stage cleaner; introducing a second substrate to be coated onto said cleaned stage; and discharging resin through a nozzle onto said second substrate and coating said second substrate, wherein the discharging of resin through the nozzle onto and the coating of the second substrate includes scanning an upper region of said second substrate in a moving direction of the nozzle through a scanner provided at a front end of the nozzle, for detecting of impurities of the upper region of said second substrate, wherein the scanner protrudes from a front surface of the nozzle, and has a length about equal to that of the nozzle, wherein the discharging of resin through the nozzle onto and the coating of the second substrate includes detecting a moving path of the nozzle through a tracking sensor to detect whether the nozzle deviates from above the second substrate.