Figure 4

Inverse tracing of the hot spot using a set of TFTC array. (a, b) Two cases that show the capability of tracing the heating source from 2D maps of local temperatures. By proper calculations, one can figure out the temperature fields and the flow of the heat that transfer throughout the substrate surface. The arrows in the figure are plotted inversely following the gradient of temperatures in the maps. In each figure, the red dot is the exact location of the in-plane heater, while the grey-filled circle is the calculated location of heating source from the measured data.