Patent ID: 7824618

Claim:
A sensor structure comprising: a dielectric layer; a substrate formed on the dielectric layer and having a well structure exposing a surface of the dielectric layer; at least one pair of detecting electrodes embedded in the dielectric layer exposed by the well structure, wherein a surface of the detecting electrodes is in contact with the surface of the dielectric layer; an upper protective layer formed on an upper surface of the substrate; a substrate protective layer positioned and configured to at least cover a side wall of the well structure; a sensing layer formed on a detecting electrode and made of a conductive particle and a non-conductive polymer composite; and a heater embedded formed under the dielectric layer having the detecting electrodes for controlling a temperature in the well structure, wherein the detecting electrodes are directly between the heater and the planar surface at the bottom of the well structure, and wherein an analysis object is analyzed by measuring a change of a physical quantity of the sensing layers with regard to the exposure of a chemical species at two or more temperatures using the sensing layer.