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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.
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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.
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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.
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公开(公告)号：US20170354345A1
公开(公告)日：2017-12-14
申请号：US15665903
申请日：2017-08-01
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Stefano Rossi , Angelo Recchia , Giuseppe Bruno
CPC classification number: A61B5/0535 , A61B5/6804 , G01N27/028
Abstract: A device for measuring an electrical impedance of biologic tissue may include electrodes configured to contact the biologic tissue and generate a differential voltage thereon. The device may include a first circuit coupled to the electrodes and configured to force an oscillating input signal therethrough, and a differential amplitude modulation (AM) demodulator coupled to the plurality of electrodes. The differential AM demodulator may be configured to demodulate the differential voltage, and generate a base-band signal representative of the demodulated differential voltage. The device may further include an output circuit downstream from the differential AM demodulator and may be configured to generate an output signal representative of the electrical impedance as a function of the base-band signal.
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公开(公告)号：US09835574B2
公开(公告)日：2017-12-05
申请号：US14726823
申请日：2015-06-01
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
CPC classification number: G01N27/121 , G01N27/18
Abstract: A gas measurement device measures gas using a gas sensor including a sense resistance exposed to the gas and a reference resistance not exposed to the gas. The gas measurement device applies a first current value and a second current value to the sensor. A detector functions to detect a first resistance variation and a second resistance variation of the sense resistance exposed to the gas with respect to the reference resistance as a function of the first current value and the second current value, respectively. The resistance variation dependent on relative humidity is then determined as a function of the first and second resistance variations and a first constant. The resistance variation dependent on gas content is then determined as a function of the first and second resistance variations and a second (different) constant.
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Patent Agency Ranking
公开(公告)号：US20180074000A1
公开(公告)日：2018-03-15
申请号：US15808408
申请日：2017-11-09
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
CPC classification number: G01N27/18 , B81B7/02 , B81B7/04 , B81B2201/02 , B81B2201/0278 , G01N30/66 , G01N33/0027
Abstract: A semiconductor gas sensor device includes a first cavity that is enclosed by opposing first and second semiconductor substrate slices. At least one conducting filament is provided to extend over the first cavity, and a passageway is provided to permit gas to enter the first cavity. The sensor device may further including a second cavity that is hermetically enclosed by the opposing first and second semiconductor substrate slices. At least one another conducting filament is provided to extend over the second cavity.
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公开(公告)号：US20150377813A1
公开(公告)日：2015-12-31
申请号：US14725842
申请日：2015-05-29
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
CPC classification number: G01N27/18 , B81B7/02 , B81B7/04 , B81B2201/02 , B81B2201/0278 , G01N30/66 , G01N33/0027
Abstract: A semiconductor gas sensor device includes a first cavity that is enclosed by opposing first and second semiconductor substrate slices. At least one conducting filament is provided to extend over the first cavity, and a passageway is provided to permit gas to enter the first cavity. The sensor device may further including a second cavity that is hermetically enclosed by the opposing first and second semiconductor substrate slices. At least one another conducting filament is provided to extend over the second cavity.
Abstract translation: 半导体气体传感器装置包括由相对的第一和第二半导体衬底切片包围的第一腔体。 提供至少一个导电细丝以在第一腔上延伸，并且设置通道以允许气体进入第一腔。 传感器装置还可以包括被相对的第一和第二半导体衬底切片气密地包围的第二腔体。 提供至少另一个导电细丝以在第二腔上延伸。
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公开(公告)号：US10660540B2
公开(公告)日：2020-05-26
申请号：US15665903
申请日：2017-08-01
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Stefano Rossi , Angelo Recchia , Giuseppe Bruno
Abstract: A device for measuring an electrical impedance of biologic tissue may include electrodes configured to contact the biologic tissue and generate a differential voltage thereon. The device may include a first circuit coupled to the electrodes and configured to force an oscillating input signal therethrough, and a differential amplitude modulation (AM) demodulator coupled to the plurality of electrodes. The differential AM demodulator may be configured to demodulate the differential voltage, and generate a base-band signal representative of the demodulated differential voltage. The device may further include an output circuit downstream from the differential AM demodulator and may be configured to generate an output signal representative of the electrical impedance as a function of the base-band signal.
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公开(公告)号：US10451575B2
公开(公告)日：2019-10-22
申请号：US15797078
申请日：2017-10-30
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
Abstract: A gas measurement device measures gas using a gas sensor including a sense resistance exposed to the gas and a reference resistance not exposed to the gas. The gas measurement device applies a first current value and a second current value to the sensor. A detector functions to detect a first resistance variation and a second resistance variation of the sense resistance exposed to the gas with respect to the reference resistance as a function of the first current value and the second current value, respectively. The resistance variation dependent on relative humidity is then determined as a function of the first and second resistance variations and a first constant. The resistance variation dependent on gas content is then determined as a function of the first and second resistance variations and a second (different) constant.
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公开(公告)号：US10180406B2
公开(公告)日：2019-01-15
申请号：US15808408
申请日：2017-11-09
Applicant: STMicroelectronics S.r.l.
Inventor： Pasquale Biancolillo , Angelo Recchia , Pasquale Franco , Antonio Cicero , Giuseppe Bruno
Abstract: A semiconductor gas sensor device includes a first cavity that is enclosed by opposing first and second semiconductor substrate slices. At least one conducting filament is provided to extend over the first cavity, and a passageway is provided to permit gas to enter the first cavity. The sensor device may further including a second cavity that is hermetically enclosed by the opposing first and second semiconductor substrate slices. At least one another conducting filament is provided to extend over the second cavity.
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