Patent ID: 8691336

Claim:
A coating treatment method of a substrate, comprising: a first step of discharging a coating solution from a nozzle to a central portion of a substrate, while applying the coating solution over the substrate, continuously rotating the substrate and accelerating the rotating of the substrate at three separate and distinct constant accelerations in an order of a first constant acceleration, a second constant acceleration higher than the first constant acceleration, and a third constant acceleration lower than the second constant acceleration, a second step of decelerating the rotation of the substrate while continuously rotating the substrate; continuing the discharge of the coating solution by the nozzle from the first step until a middle of the second step; and after the discharging of the coating solution is stopped in the middle of the second step, continuously rotating the substrate and decelerating the rotation of the substrate; and a third step of accelerating the rotation of the substrate and drying the coating solution on the substrate.