Patent ID: 7326358
Filing Date: 2008-02-05
Classification: G03F,H01J,H01L

Abstract:
1. A plasma processing method for performing a plasma processing on a substrate mounted on a mounting table installed in an airtight processing chamber, the mounting table having a smaller size than the substrate, the method comprising the steps of: mounting the substrate having a surface, on which a resist mask is formed, on the mounting table and then electrostatically adsorbing the substrate on the mounting table by applying a voltage to an electrostatic chuck; etching the surface of the substrate by using a plasma of an etching gas while cooling the substrate by way of transferring a heat of the substrate to the mounting table through a thermally conductive gas supplied between a top surface of the mounting table and a bottom surface of the substrate; stopping the supply of the thermally conductive gas; and while the supply of the thermally conductive gas is stopped, ashing the resist mask on the substrate by using a plasma of an ashing gas containing O