Patent ID: 6872418
Filing Date: 2005-03-29
Classification: H01L

Abstract:
1. A method for forming a film using a rotating cup application apparatus in which a rotatable inner cup is provided within an outer cup, upper openings of said inner cup and said outer cup are closed with corresponding lids, and said lid for the inner cup is integrally rotated together with said inner cup, the method consisting essentially of the steps of: (a) setting a material to be treated in said rotating cup application apparatus, a surface of said material having irregularities thereon; (b) applying SOG onto the surface of said material to be treated; (c) closing the upper openings of said inner cup and said outer cup with the lids; (d) rotating said inner cup at a rate of 3000-5000 rpm in this state to uniformly diffuse said SOG while maintaining said SOG in a solution state; repeating the steps (b)-(d); and (e) thereafter baking said material to be treated, to which the SOG has been applied, in a heat treatment apparatus.