Patent ID: 6551765
Filing Date: 2003-04-22
Classification: B05B,B05C,G03F,H01L

Abstract:
A coating method comprising the steps ofholding a semiconductor wafer; positioning a discharge device in which discharge holes aligned to form an arc are formed so that a center of the arc coincides with a center of the semiconductor wafer; containing a coating solution in said discharge device, vibrating a minute vibration device; causing said discharge device to discharge the coating solution by vibrations of said minute vibration device; rotating a wafer holding mechanism and said discharge device relatively to each other; and applying the coating solution while rotating said discharge device such that a discharge hole at one end of said discharge holes is fixed as a center of rotation and the other discharge holes are rotated around said center of rotation toward a center side of said semiconductor wafer, thereby causing a film of said coating solution to form on said semiconductor wafer.