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公开(公告)号：US20190265518A1
公开(公告)日：2019-08-29
申请号：US16254753
申请日：2019-01-23
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Stephane Monfray , Frédéric Boeuf
IPC: G02F1/025
Abstract: In one aspect, a photonic device includes a first region having a first doping type, where the first region is divided into an upper portion made of silicon-germanium and a lower portion made of silicon. The device further includes a second region having a second doping type. The first region and the second region contact to form a vertical PN junction.
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12.发明申请公开(公告)号：US20180372679A1
公开(公告)日：2018-12-27
申请号：US15631078
申请日：2017-06-23
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Getenet Tesega Ayele , Stephane Monfray
IPC: G01N27/414
CPC classification number: G01N27/4148
Abstract: A dual gate ion sensitive field effect transistor (ISFET) includes a first bias voltage node coupled to a back gate of the ISFET and a second bias voltage node coupled to a control gate of the ISFET. A bias voltage generator circuit is configured to generate a back gate voltage having a first magnitude and a first polarity for application to the first bias voltage node. The bias voltage generator circuit is further configured to generate a control gate voltage having a second magnitude and a second polarity for application to the second bias voltage node. The second polarity is opposite the first polarity.
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公开(公告)号：US10020758B2
公开(公告)日：2018-07-10
申请号：US15042293
申请日：2016-02-12
Inventor： Gholamreza Mirshekari , Etienne Leveille , Luc Guy Frechette , Stephane Monfray , Thomas Skotnicki
IPC: H02N2/18 , H01L41/113 , F03G7/06 , H02N2/00 , F03G7/00
CPC classification number: H02N2/18
Abstract: A first closed enclosure defines a cavity having an inner dimension smaller than 5 mm. At least one second resiliently deformable closed enclosure is connected in fluid communication with the first enclosure. A fluid at more than 90% in the liquid state fills the first and second enclosures. A first portion of the first enclosure is in contact with a hot source of a temperature higher than the evaporation temperature of the fluid. A second portion of the first enclosure located between the first portion and the resiliently deformable closed enclosure is in contact with a cold source at a temperature lower than the condensation temperature of the fluid. An electromechanical transducer is coupled to a deformable membrane of the resiliently deformable closed enclosure.
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公开(公告)号：US09972190B2
公开(公告)日：2018-05-15
申请号：US15139500
申请日：2016-04-27
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Stephane Monfray , Christophe Maitre , Thomas Skotnicki
CPC classification number: G08B21/182 , G01D21/00 , G01K1/024 , G01K5/72 , G01P15/02 , H01L41/113 , H02N2/18
Abstract: A detector of an event includes an electrical energy generator formed by a flexible piezoelectric element with a weight fastened to the flexible piezoelectric element that is biased with the weight in a position with the piezoelectric element flexed. In response to detection of the event, a trigger releases the weight so as to cause a vibration of the piezoelectric element. This vibration is converted by the flexible piezoelectric element into electrical energy. An electronic system is power by the electrical energy and is operable to generate an electrical signal indicative of the detected event.
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15.发明授权公开(公告)号：US09966879B2
公开(公告)日：2018-05-08
申请号：US15653835
申请日：2017-07-19
Applicant: Commissariat a l'Energie Atomique et aux Energies Alternatives , STMicroelectronics (Crolles 2) SAS
Inventor： Stephane Monfray , Guillaume Savelli , Thomas Skotnicki , Philippe Coronel , Frederic Gaillard
Abstract: A system includes a hot source, a cold source, and a device thermally coupled between the hot source and the cold source. The device includes a thermal-mechanical transducer and a mechanical-electrical transducer. The thermal-mechanical transducer includes a band of bimetallic strips linked mechanically together by their longitudinal ends. The band partially suspended over a portion of a substrate. Each bimetallic strip has a first stable state having a first curvature and a second stable state having a second curvature opposite the first curvature, and adjacent bimetallic strips have opposite curvature.
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Patent Agency Ranking
公开(公告)号：US20170117823A1
公开(公告)日：2017-04-27
申请号：US15139151
申请日：2016-04-26
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Arthur Arnaud , Jihane Boughaleb , Stephane Monfray , Thomas Skotnicki
IPC: H02N2/18 , F03G7/06 , H01L41/113
CPC classification number: H02N2/18 , F03G7/06 , H01L41/1134 , H02N3/00
Abstract: A system for converting thermal energy into electrical power includes a temperature-sensitive element held in a frame by its two ends between a heat source and a cold source producing a thermal gradient. A piezoelectric element is positioned between the frame and at least one end of the temperature-sensitive element. The temperature-sensitive element is configured to deform cyclically between two states under the action of the thermal gradient. With each cyclic deformation, a stress is applied to the piezoelectric element via the one end.
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公开(公告)号：US11822164B2
公开(公告)日：2023-11-21
申请号：US17009468
申请日：2020-09-01
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Stephane Monfray
IPC: G02F1/025
CPC classification number: G02F1/025 , G02F2202/06 , G02F2202/104 , G02F2202/105 , G02F2203/50
Abstract: An electro-optical phase modulator includes a waveguide made from a stack of strips. The stack includes a first strip made of a doped semiconductor material of a first conductivity type, a second strip made of a conductive material or of a doped semiconductor material of a second conductivity type, and a third strip made of a doped semiconductor material of the first conductivity type. The second strip is separated from the first strip by a first interface layer made of a dielectric material, and the third strip is separated from the second strip by a second interface layer made of a dielectric material.
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公开(公告)号：US10741740B2
公开(公告)日：2020-08-11
申请号：US16047505
申请日：2018-07-27
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Emmanuel Dubois , Jean-Francois Robillard , Stephane Monfray , Thomas Skotnicki
Abstract: A thermo-electric generator includes a semiconductor membrane with a phononic structure containing at least one P-N junction. The membrane is suspended between a first support designed to be coupled to a cold thermal source and a second support designed to be coupled to a hot thermal source. The structure for suspending the membrane has an architecture allowing the heat flux to be redistributed within the plane of the membrane.
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公开(公告)号：US20190265519A1
公开(公告)日：2019-08-29
申请号：US16254798
申请日：2019-01-23
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Stephane Monfray , Frédéric Boeuf
IPC: G02F1/025
Abstract: A photonic device includes a first region having a first doping type, and a second region having a second doping type, where the first region and the second region contact to form a vertical PN junction. The first region includes a silicon germanium (SiGe) region having a gradual germanium concentration.
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公开(公告)号：US10075102B2
公开(公告)日：2018-09-11
申请号：US15139151
申请日：2016-04-26
Applicant: STMicroelectronics (Crolles 2) SAS
Inventor： Arthur Arnaud , Jihane Boughaleb , Stephane Monfray , Thomas Skotnicki
IPC: H01L41/113 , H02N2/18 , H02N3/00 , F03G7/06
CPC classification number: H02N2/18 , F03G7/06 , H01L41/1134 , H02N3/00
Abstract: A system for converting thermal energy into electrical power includes a temperature-sensitive element held in a frame by its two ends between a heat source and a cold source producing a thermal gradient. A piezoelectric element is positioned between the frame and at least one end of the temperature-sensitive element. The temperature-sensitive element is configured to deform cyclically between two states under the action of the thermal gradient. With each cyclic deformation, a stress is applied to the piezoelectric element via the one end.
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