公开(公告)号：US11774422B2

公开(公告)日：2023-10-03

申请号：US16458561

申请日：2019-07-01

Applicant: STMicroelectronics PTE LTD

Inventor： Fangxing Yuan ,  Ravi Shankar ,  Olivier Le Neel

IPC: G01N33/00 ,  G01N29/22

CPC classification number: G01N33/0013 ,  G01N29/228 ,  G01N33/0016 ,  G01N33/0031

Abstract: The present disclosure is directed to a selective multi-gas sensor device that detects when a high concentration level of a particular gas, such as methane, carbon monoxide, and/or ethanol, is present. The selective multi-gas sensor device detects and identifies a particular gas based on a ratio between a sensitivity of a gas sensitive material at a first temperature and a sensitivity of the gas sensitive material at a second temperature.