Patent ID: 7211514
Filing Date: 2007-05-01
Classification: C23C,H01L

Abstract:
1. A heat-processing method for subjecting a plurality of target substrates to a heat process under a vacuum pressure, the method comprising: a transfer step of transferring into a reaction chamber a holder that supports the target substrates at predetermined intervals; a heating-up and pressure-reducing step, which follows the transfer step, of heating up an interior of the reaction chamber to a process temperature, and exhausting the interior of the reaction chamber to reduce pressure thereof to a process pressure; and a heat-processing step, which follows the heating-up and pressure-reducing step, of subjecting the target substrates to the heat process at the process temperature and the process pressure, wherein, during the heating-up and pressure-reducing step, the interior of the reaction chamber is heated up to the process temperature at a heat-up rate of 50° C./min to 200° C./min, and wherein, during the heating-up and pressure-reducing step, the interior of the reaction chamber is set at the process pressure after the interior of the reaction chamber is set at the process temperature, so as to form a state where the interior of the reaction chamber has the process temperature under a pressure higher than the process pressure.