Patent ID: 11921080
Assignee: KOREA ELECTRONICS TECHNOLOGY INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. A gas sensor comprising:
a single FET device including a first gate electrode and a second gate electrode;
a sensor array part including a plurality of sensors, wherein a first electrode of each sensor of the plurality of sensors is connected to a gate electrode of the single FET device; and
a controller detecting a gas using a current between a drain and a source of the single FET device in response to voltage changes of the gate electrode of the single FET device, wherein
each sensor of the plurality of sensors includes:
the first electrode connected to the gate electrode of the single FET device;
a second electrode configured to receive an operating voltage through a switch controlled by the controller; and
a detection film interposed between the first electrode and the second electrode.