Temperature sensor calibration device and method.

摘要

A device and method for calibrating at least one temperature sensor is disclosed herein. A wafer (30) is provided having a first plurality of calibration elements or islands (36) of a material having a melting point in the range 150 DEG - 1150 DEG C. The effective reflectivity of the wafer is measured in operation using the temperature sensor or via a separate light source. A first step change in an output signal of the temperature sensor corresponding to a wafer temperature equal to the melting point of the first calibration islands is detected. Finally, the temperature sensor calibration parameters are calculated. Other devices, systems and methods are also disclosed. <IMAGE>