US Patent No. 10,274,471

GAS DETECTION MODULE AND GAS SENSOR THEREOF


Patent No. 10,274,471
Issue Date April 30, 2019
Title Gas Detection Module And Gas Sensor Thereof
Inventorship Ting-Chang Chang, Kaohsiung (TW)
Hua-Mao Chen, Kaohsiung (TW)
Hsiao-Cheng Chiang, Kaohsiung (TW)
Yu-Ching Tsao, Kaohsiung (TW)
Min-Chen Chen, Kaohsiung (TW)
Assignee NATIONAL SUN YAT-SEN UNIVERSITY, Kaohsiung (TW)

Claim of US Patent No. 10,274,471

1. A gas detection module comprising:a gas sensor having a substrate, a gate, an insulating layer, an active layer, a source and a drain, wherein the gate is disposed on the substrate, wherein the insulating layer is disposed on the gate and the substrate, wherein the active layer is disposed on the insulating layer, wherein each of the source and the drain is partially arranged on the active layer and extends to the insulating layer, and wherein the active layer is exposed from between the source and the drain; and
a detection circuit comprising an operational amplifier, a resistor and an electrical sensor, wherein the operational amplifier comprises two input ends and an output end, wherein a first one of the two input ends is electrically connected to a ground end, wherein a second one of the two input ends is electrically connected to the source of the gas sensor, wherein the second one of the two input ends is electrically connected to the output end via the resistor, and wherein the electrical sensor is electrically connected between the output end and the ground end.