Patent ID: 7416474
Filing Date: 2008-08-26
Classification: B24B,H01L

Abstract:
1. A planarization apparatus for planarizing a coating film applied on a substrate before the coating film is hardened, comprising: a contact body configured to be brought into contact with a front surface of the coating film on the substrate; a contact body drive mechanism for pressing said contact body against the front surface of the coating film and moving said contact body along the front surface of the coating film to planarize the front surface of the coating film; a distortion detection sensor for detecting distortion of the substrate; a control unit for controlling a height of said contact body with respect to the substrate based on a detection result of the distortion by said distortion sensor in order to planarize the coating film to a predetermined film thickness; and a processing liquid supply unit for supplying a processing liquid to be supplied to the substrate when said contact body planarizes the coating film, wherein the processing liquid is a solvent for the coating film.