Thin film sensor

Details Thin film sensor Thin film sensor

2008-06-03

2009-08-25

Dole, Timothy J (Department: 2831)

Electricity: measuring and testing

Determining nonelectric properties by measuring electric...

C435S287100, C436S063000, C422S073000, C422S068100, C422S082010

Reexamination Certificate

active

07579823

ABSTRACT:
An electrically operated, particle detecting, or characterizing, sensor structured as a thin film multilayer sandwich. Three or more electrodes are deposited onto thin layers of film, and stacked to form the sandwich. A representative stacking arrangement provides a pair of stimulated electrodes spaced apart from an intermediate measurement electrode by insulating layers of thin film. A fluid conducting channel, having an axis perpendicular to the film layers, provides electrolytic electrical communication between the three electrodes. Contact pads, arranged to permit electrical interrogation of the electrodes by electrical circuitry, are desirably arranged for access to electrical interrogation probes from a single side of the sensor. Certain sensors may be included in single-use, disposable cartridges adapted for analysis by an interrogation platform.

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