Patent ID: 6389225
Filing Date: 2002-05-14
Classification: G01R

Abstract:
An apparatus for controlling a temperature of a semiconductor device, the apparatus comprising:a heater, adapted to be thermally coupled to the semiconductor device; a heat sink thermally coupled to the heater, wherein the heat sink defines a chamber and the chamber is adapted to have a liquid flowing through the chamber; and a temperature control system, coupled to both the heater and the heat sink, for controlling a temperature of a point on either the heater or the semiconductor device; wherein the temperature control system is adapted to move the temperature of the point on the heater or the device from approximately a first set point temperature to approximately a second set point temperature by changing the control of the heater and maintaining at a substantially constant temperature the liquid flowing into the chamber, the liquid having an operative temperature range that extends as low as approximately âˆ’40 degrees C., and the operative set point temperatures extending as low as approximately âˆ’10 degrees C.