Patent ID: 6183810
Filing Date: 2001-02-06
Classification: B05D

Abstract:
A method of forming a coating film, in which a coating solution is supplied from a linear nozzle supported by a horizontal arm onto a rectangular substrate held by a spin chuck arranged inside a cup having an opening so as to form a coating film on the rectangular substrate, comprising the steps of:(a) allowing the spin chuck to hold rotatably the rectangular substrate and aligning the linear nozzle and the substrate relative to each other such that the linear nozzle is disposed in parallel with a short side or long side of the rectangular substrate; and(b) supplying a coating solution from the linear nozzle onto the substrate while rocking the linear nozzle in substantially a same direction as a rotating direction of the rectangular substrate while rotating the rectangular substrate, and shaking the linear nozzle in substantially an opposite direction to the rotating direction of the rectangular substrate, so that the coating solution is substantially uniformly spread over an entire upper surface of the rectangular substrate.