Patent ID: 8182869
Filing Date: 2012-05-22
Classification: G05D,H01J,H01L

Abstract:
1. A method for controlling a temperature of a mounting table by circulating a coolant coming out of a coolant circulator in a first and a second coolant passageway provided at the mounting table for mounting thereon a target object, the method comprising a first temperature control mode and a second temperature control mode, wherein the first temperature control mode includes the steps of: connecting the first coolant passageway and the second coolant passageway in parallel between an output port and a return port of the coolant circulator; making a part of the coolant of a reference temperature outputted from the coolant circulator flow in the first coolant passageway after raising or lowering the temperature thereof to a desired set temperature; and making a residual coolant flow in the second coolant passageway while substantially maintaining the reference temperature thereof, wherein the second temperature control mode includes the steps of: wherein the first and the second temperature control mode may be switched depending on processing conditions for the target object.