-
公开(公告)号：US10942157B2
公开(公告)日：2021-03-09
申请号：US15901721
申请日：2018-02-21
Applicant: STMICROELECTRONICS PTE LTD , STMICROELECTRONICS S.R.L.
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar , Enrico Rosario Alessi , Pasquale Biancolillo
Abstract: The present disclosure is directed to a gas sensor device that detects gases with large molecules (e.g., a gas with a molecular weight between 150 g/mol and 450 g/mol), such as siloxanes. The gas sensor device includes a thin film gas sensor and a bulk film gas sensor. The thin film gas sensor and the bulk film gas sensor each include a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. The SMO film of the thin film gas sensor is an thin film (e.g., between 90 nanometers and 110 nanometers thick), and the SMO film of the bulk film gas sensor is an thick film (e.g., between 5 micrometers and 20 micrometers thick). The gas sensor device detects gases with large molecules based on a variation between resistances of the SMO thin film and the SMO thick film.
-
Patent Agency Ranking
公开(公告)号：US11821884B2
公开(公告)日：2023-11-21
申请号：US17166580
申请日：2021-02-03
Applicant: STMICROELECTRONICS S.r.l. , STMICROELECTRONICS PTE LTD
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar , Enrico Rosario Alessi , Pasquale Biancolillo
CPC classification number: G01N33/0047 , G01N27/021 , G01N27/12
Abstract: The present disclosure is directed to a gas sensor device that detects gases with large molecules (e.g., a gas with a molecular weight between 150 g/mol and 450 g/mol), such as siloxanes. The gas sensor device includes a thin film gas sensor and a bulk film gas sensor. The thin film gas sensor and the bulk film gas sensor each include a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. The SMO film of the thin film gas sensor is an thin film (e.g., between 90 nanometers and 110 nanometers thick), and the SMO film of the bulk film gas sensor is an thick film (e.g., between 5 micrometers and 20 micrometers thick). The gas sensor device detects gases with large molecules based on a variation between resistances of the SMO thin film and the SMO thick film.
-
公开(公告)号：US20210247344A1
公开(公告)日：2021-08-12
申请号：US17236750
申请日：2021-04-21
Applicant: STMICROELECTRONICS PTE LTD
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar
Abstract: The present disclosure is directed to a gas sensor device that includes a plurality of gas sensors. Each of the gas sensors includes a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. Each of the SMO films is designed to be sensitive to a different gas concentration range. As a result, the gas sensor device is able to obtain accurate readings for a wide range of gas concentration levels. In addition, the gas sensors are selectively activated and deactivated based on a current gas concentration detected by the gas sensor device. Thus, the gas sensor device is able to conserve power as gas sensors are on when appropriate instead of being continuously on.
-
公开(公告)号：US12196730B2
公开(公告)日：2025-01-14
申请号：US18485072
申请日：2023-10-11
Applicant: STMICROELECTRONICS S.r.l. , STMICROELECTRONICS PTE LTD
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar , Enrico Rosario Alessi , Pasquale Biancolillo
Abstract: The present disclosure is directed to a gas sensor device that detects gases with large molecules (e.g., a gas with a molecular weight between 150 g/mol and 450 g/mol), such as siloxanes. The gas sensor device includes a thin film gas sensor and a bulk film gas sensor. The thin film gas sensor and the bulk film gas sensor each include a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. The SMO film of the thin film gas sensor is an thin film (e.g., between 90 nanometers and 110 nanometers thick), and the SMO film of the bulk film gas sensor is an thick film (e.g., between 5 micrometers and 20 micrometers thick). The gas sensor device detects gases with large molecules based on a variation between resistances of the SMO thin film and the SMO thick film.
-
公开(公告)号：US11808723B2
公开(公告)日：2023-11-07
申请号：US17236750
申请日：2021-04-21
Applicant: STMICROELECTRONICS PTE LTD
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar
CPC classification number: G01N27/123 , G01N27/125 , G01N33/0031 , G01N33/0047 , G01N33/0065 , G01N33/0075
Abstract: The present disclosure is directed to a gas sensor device that includes a plurality of gas sensors. Each of the gas sensors includes a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. Each of the SMO films is designed to be sensitive to a different gas concentration range. As a result, the gas sensor device is able to obtain accurate readings for a wide range of gas concentration levels. In addition, the gas sensors are selectively activated and deactivated based on a current gas concentration detected by the gas sensor device. Thus, the gas sensor device is able to conserve power as gas sensors are on when appropriate instead of being continuously on.
-
公开(公告)号：US11009474B2
公开(公告)日：2021-05-18
申请号：US16217631
申请日：2018-12-12
Applicant: STMICROELECTRONICS PTE LTD
Inventor： Malek Brahem , Hatem Majeri , Olivier Le Neel , Ravi Shankar
Abstract: The present disclosure is directed to a gas sensor device that includes a plurality of gas sensors. Each of the gas sensors includes a semiconductor metal oxide (SMO) film, a heater, and a temperature sensor. Each of the SMO films is designed to be sensitive to a different gas concentration range. As a result, the gas sensor device is able to obtain accurate readings for a wide range of gas concentration levels. In addition, the gas sensors are selectively activated and deactivated based on a current gas concentration detected by the gas sensor device. Thus, the gas sensor device is able to conserve power as gas sensors are on when appropriate instead of being continuously on.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
