Patent ID: 9070590
Filing Date: 2015-06-30
Classification: C21D,H01L

Abstract:
1. A method comprising: a) measuring deformation of a semiconductor workpiece during heat-treating thereof, wherein the semiconductor workpiece comprises a semiconductor wafer, wherein the heat-treating comprises heating the semiconductor wafer, and wherein measuring the deformation comprises measuring a curvature of the semiconductor wafer during the heating of the semiconductor wafer; b) obtaining a temperature measurement of the semiconductor wafer during the heat-treating thereof by detecting electromagnetic radiation from the semiconductor wafer, wherein the temperature measurement is affected by a deformation error resulting from magnification of the electromagnetic radiation caused by the curvature of the semiconductor wafer; and c) taking an action in relation to the heating of the semiconductor wafer, in response to the measuring of the deformation of the semiconductor wafer, wherein taking the action comprises compensating for the deformation error resulting from the magnification by applying a deformation correction to the temperature measurement of the semiconductor wafer during the heating.