Patent ID: 11867657
Assignee: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY
Field: Measurement (Instruments)
Classification: CPC G  Y | IPC G

Claim 0:
1. A gas sensor comprising:
a gate electrode;
a dielectric layer covering one surface of the gate electrode;
an indium (In) gallium (Ga) zinc (Zn) oxide (O) (IGZO) thin-film formed over the dielectric layer, and
first and second metallic electrodes formed on a surface of the IGZO thin-film to act as source and drain, respectively,
wherein the IGZO thin-film has an In mass concentration of 11%+/−3%, Ga mass concentration of 11%+/−3%, Zn mass concentration of 7%+/−3%, and O mass concentration of 71%+/−3%, with a sum of the mass concentrations being 100%, and
wherein the gas interacts with the IGZO thin-film and changes a current through the IGZO thin-film.