Patent ID: 8383990
Filing Date: 2013-02-26
Classification: H01L

Abstract:
1. A heat treatment apparatus for performing a predetermined heat treatment process on a substrate, the heat treatment apparatus comprising: a substrate transfer part configured to support the substrate and to transfer the substrate to and from an outside of the heat treatment apparatus; a heat treatment part configured to perform the predetermined heat treatment process on the substrate; a transport arm having a holding surface, the transport arm being configured to receive and hold the substrate on the holding surface; an arm drive element coupled to the transport arm and configured to: a reference temperature control element configured to control a temperature of a holding area of the holding surface of the transport arm at a reference temperature, the holding area of the holding surface being opposed to the substrate; a corrective temperature control element configured to control a temperature of each of a plurality of portions of the holding area when the temperature of the substrate in contact with the portion of the holding area is different from the reference temperature, making the temperature of a peripheral portion of the substrate higher than the temperature of a center portion after the substrate is received on the holding surface; and a temperature controller for causing the corrective temperature control element to produce a first non-uniform temperature distribution across the holding area so as to counteract a second non-uniform temperature distribution present in the substrate.