Patent ID: 11965852
Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 11:
12. A sensing module for gas concentration monitoring, comprising:
a heater comprising a heating portion;
a sensing electrode, configured to comply with a shape of the heater, the sensing electrode comprising a sensing portion, wherein the heater and the sensing electrode are arranged in parallel at different layers along a stacking direction, and the sensing electrode is electrically insulated from the heater; and
a thermal insulating film under the sensing electrode along the stacking direction, wherein the thermal insulating film comprises a bump and a thermal insulating cavity, the bump protrudes upward from the thermal insulating film, such that the thermal insulating cavity is formed within a boundary defined by an inner profile of the bump;
wherein, on a reference plane in the stacking direction, a projection of the sensing portion of the sensing electrode is entirely covered by a projection of the heating portion of the heater.