Patent ID: 6159873
Filing Date: 2000-12-12
Classification: C23C,C30B

Abstract:
A method for producing a semiconductor device, in which a wafer or wafers are arranged and heat treated in a hot-wall type heating furnace, provided with a reaction tube and a resistance heater located outside the reaction tube, comprising the steps of:preliminarily heating a plurality of opposed thermal storage plates located inside the reaction tube to a heat-treating temperature by said resistant heater of said hot-wall type heating furnace; andsubsequently, positioning one wafer or opposed two wafers between the opposed thermal storage plates, in such a manner that essentially entire surface of the wafer or wafers is opposite to at least a partial region of the thermal storage plates, thereby elevating the temperature of the wafer or wafers to the heat-treating temperature with heat radiation generated from both the thermal storage plates and the resistance heater.