In the present work we have fabricated a thick film SnO2 sensor on a 1?x1? alumina substrate. It consists of a gas sensitive layer (SnO2) doped with ZnO, a pair of electrodes underneath the gas sensing layer serving as a contact pad for sensor and a heater element on the backside of the substrate was printed. The sensitivity of sensor has been studied and measured at different temperatures (1500C - 3500C) upon exposure to SO2. An approach is made to measure the sensitivity of ZnO-doped SnO2 by using Artificial Neural Network tool. Finally we have shown the results that shows the potential of Artificial Neural Network as a design tool in the area of thick film gas sensor fabrication and development.

Artificial Neural Network, Thick film sensor, sensitivity, ZnO

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