Patent ID: 6967177
Filing Date: 2005-11-22
Classification: H01L

Abstract:
1. A method for controlling a substrate temperature of a substrate during processing of the substrate at a process energy, by controlling with a controller a chuck temperature of a chuck on which the substrate resides during the processing, comprising: circulating under control of the controller a thermal transfer media at a thermal transfer media temperature through the substrate chuck to adjust both the chuck temperature and the substrate temperature, the thermal transfer media circulating at a flow rate, sensing the chuck temperature from at least one chuck temperature sensor in the chuck, reporting the sensed chuck temperature to the controller, where the controller is adapted to adjust the process energy, the thermal transfer media flow rate, and the thermal transfer media temperature, and when the sensed chuck temperature is outside of a desired temperature range, then using the controller to bring the sensed chuck temperature within the desired temperature range, by sequentially