Patent ID: 8178820
Filing Date: 2012-05-15
Classification: F27B,F27D,H01L

Abstract:
1. A heat treatment apparatus for heating a substrate, the heat treatment apparatus comprising: a processing chamber containing a process space; a first substrate support in the process space, the first substrate support being configured to support the substrate in a spaced relationship with a first heating source to define a first heat exchange gap between the first heating source and the substrate, the first heating source configured to transfer heat energy through the first heat exchange gap to elevate a temperature of the substrate to an offset temperature below a process target temperature; and a second substrate support in the process space, the second substrate support being configured to support the substrate in a spaced relationship with a second heating source to define a second heat exchange gap between the second heating source and the substrate, the second heating source configured to transfer heat energy through the second heat exchange gap to elevate the temperature of the substrate from the offset temperature to the process target temperature in controlled increments.