Patent ID: 6890715
Filing Date: 2005-05-10
Classification: G01N

Abstract:
1. A sensor, comprising: a sensor film separating and in direct contact with at least two conductive leads wherein the sensor film comprises regions of at least a first material having a positive temperature coefficient of resistance and a second non-conductive or insulating material compositionally different than the first material, wherein the sensor film provides an electrical path between the at least two conductive leads through and transverse to the regions of the first material and the regions of the second material, the first material being selected from the group consisting of a poly(3,4-ethylenedioxy)thiophene (polyEDOT), poly(3,4-ethylenedithiathiophene), and a poly(3,4-ethylenedioxy)thiophene-poly(styrene sulfonate) (PEDOT-PSS).