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公开(公告)号：US20240219166A1
公开(公告)日：2024-07-04
申请号：US18539586
申请日：2023-12-14
Applicant: Melexis Technologies SA
Inventor： Sébastien LEROY , Lionel TOMBEZ
IPC: G01B7/30
CPC classification number: G01B7/30
Abstract: A method of testing a sensor device includes a single angle calculator and at least two magnetic sensor elements. The method includes the steps of: a) obtaining signals from the sensor elements; b) amplifying and digitizing the signals from the sensor elements; c) applying a first input value IN1 derived from the digitized signal, to the angle calculator, to obtain a first angle value; d) applying a second input value IN2 derived from the digitized signal, to the angle calculator, to obtain a second angle value; e) performing a consistency test of the first and second angle value; f) detecting an error of the sensor device or the angle calculator based on an outcome of the consistency test.
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公开(公告)号：US20230213358A1
公开(公告)日：2023-07-06
申请号：US18090206
申请日：2022-12-28
Applicant: Melexis Technologies SA
Inventor： Lionel TOMBEZ , Yves BIDAUX , Gael CLOSE
Abstract: A position sensor device comprising two or more magnetic sensors capable of measuring one or two or three orthogonal magnetic field components at various sensor locations; and a processing circuit for determining a first, a second and a third difference of two respective components, and for determining a first ratio of the first and second difference, and determining and outputting a first angle based on this first ratio; and for determining a second ratio of the first and third difference, for optionally determining a second angle, optionally comparing the two angles or the two ratios; and for outputting at least one of: the second angle, the two ratios, a diagnostic signal based on a comparison of the angles or ratios.
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公开(公告)号：US20220099709A1
公开(公告)日：2022-03-31
申请号：US17484011
申请日：2021-09-24
Applicant: Melexis Technologies SA
Inventor： Lucian BARBUT , Francis MONCHAL , Simon HOUIS , Lionel TOMBEZ
Abstract: A sensor device includes a silicon substrate having an active surface; a first sensing area disposed near a first edge of the active surface of the silicon substrate such that the first sensing area has at least one first magnetic sensing element is made of a first compound semiconductor material and contact pads; and a second sensing area disposed near a second edge of the active surface of the silicon substrate, such that the second edge is substantially opposite to the first edge, such that the second sensing area has at least one second magnetic sensing element made of a second compound semiconductor material and contact pads. A processing circuit is disposed of in the silicon substrate and is electrically connected via wire bonds and/or a redistribution layer with the contact pads of the first and second sensing areas.
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4.发明公开公开(公告)号：US20240219487A1
公开(公告)日：2024-07-04
申请号：US18392424
申请日：2023-12-21
Applicant: Melexis Technologies SA
Inventor： Guido DUPONT , Daniel ROSENFELD , Lionel TOMBEZ , Bruno BRAJON , Appo VAN DER WIEL,
CPC classification number: G01R33/063 , G01R33/0052 , G01R33/0076 , G01R33/072
Abstract: A sensor device including a semiconductor substrate having an excitation circuit and a sensing circuit for measuring a magneto-impedance effect of a soft-magnetic component arranged on top of the semiconductor substrate. The soft-magnetic component is operatively connected to the excitation circuit and the sensing circuit, and is electrically connected to at least one of the excitation circuit and the sensing circuit by means of back contacts or side contacts. The soft-magnetic component has an elongated shape or an elongated portion extending in a first direction parallel to the semiconductor substrate; a processing circuit connected to the sensing circuit, and configured for providing a signal indicative of the measured impedance or a value derived therefrom. A method is provided for producing such a semiconductor substrate.
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公开(公告)号：US20240151749A1
公开(公告)日：2024-05-09
申请号：US18415296
申请日：2024-01-17
Applicant: Melexis Technologies SA
Inventor： Lucian BARBUT , Francis MONCHAL , Simon HOUIS , Lionel TOMBEZ
CPC classification number: G01R15/202 , G01R15/205 , G01R19/32
Abstract: A sensor device includes a silicon substrate having an active surface; a first sensing area disposed near a first edge of the active surface of the silicon substrate such that the first sensing area has at least one first magnetic sensing element is made of a first compound semiconductor material and contact pads; and a second sensing area disposed near a second edge of the active surface of the silicon substrate, such that the second edge is substantially opposite to the first edge, such that the second sensing area has at least one second magnetic sensing element made of a second compound semiconductor material and contact pads. A processing circuit is disposed of in the silicon substrate and is electrically connected via wire bonds and/or a redistribution layer with the contact pads of the first and second sensing areas.
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Patent Agency Ranking
公开(公告)号：US20240125844A1
公开(公告)日：2024-04-18
申请号：US18486221
申请日：2023-10-13
Applicant: Melexis Technologies SA
Inventor： Lionel TOMBEZ , Sebastien LEROY
CPC classification number: G01R31/2853 , G01R31/001 , G01R31/64
Abstract: The present invention relates to an error detection circuit or detecting an error in a connection of an electrical component. The error detection circuit comprises a control circuit, a terminal arranged to connect the electrical component, and a driving means, coupled to the terminal and arranged to be controlled by the control circuit. The driving means is arranged to drive a current on receipt of a control signal (Vctl) from the control circuit and the control circuit is further arranged to receive in response to the current a measurement signal via the terminal, to determine based on a characteristic of the measurement signal a possible error and to communicate an error signal based on the determining.
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公开(公告)号：US20230086851A1
公开(公告)日：2023-03-23
申请号：US18071304
申请日：2022-11-29
Applicant: Melexis Technologies SA
Inventor： Lucian BARBUT , Francis MONCHAL , Simon HOUIS , Lionel TOMBEZ
Abstract: A sensor device includes a silicon substrate having an active surface; a first sensing area disposed near a first edge of the active surface of the silicon substrate such that the first sensing area has at least one first magnetic sensing element is made of a first compound semiconductor material and contact pads; and a second sensing area disposed near a second edge of the active surface of the silicon substrate, such that the second edge is substantially opposite to the first edge, such that the second sensing area has at least one second magnetic sensing element made of a second compound semiconductor material and contact pads. A processing circuit is disposed of in the silicon substrate and is electrically connected via wire bonds and/or a redistribution layer with the contact pads of the first and second sensing areas.
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公开(公告)号：US20220381586A1
公开(公告)日：2022-12-01
申请号：US17749429
申请日：2022-05-20
Applicant: Melexis Technologies SA
Inventor： Gael CLOSE , Eric LAHAYE , Lionel TOMBEZ
Abstract: Method of determining a position of a sensor device relative to a magnetic source, includes: a) determining a first and a second magnetic field component at a first sensor location; b) determining a third and a fourth magnetic field component at a second sensor location; c) determining a first difference of the first and third component, and determining a second difference of the second and fourth component, and determining a first angle based on a ratio of the first and second difference; d) determining a first sum of the first and third component, and determining a second sum of the second and fourth component; e) determining a second angle based on a ratio of said first and second sum; f) comparing the first and second angle to detect error.
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公开(公告)号：US20220357144A1
公开(公告)日：2022-11-10
申请号：US17730796
申请日：2022-04-27
Applicant: Melexis Technologies SA
Inventor： Lionel TOMBEZ
Abstract: An angular position sensor system includes a two-pole magnet rotatable about a rotation axis; a magnetic sensor device having a plurality of horizontal Hall elements including at least a first, second and third horizontal Hall element located on a virtual circle having a centre located on the rotation axis. The Hall elements are spaced by multiples of 90. The magnetic sensor device has a processing unit connected to the horizontal Hall elements for obtaining a first, second and third signal, and for determining a first pairwise difference between the first and second sensor signal, and for determining a second pairwise difference between the second and third sensor signal, and for determining an angular position of the magnet relative to the sensor device based on a ratio of these pairwise differences.
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10.发明公开公开(公告)号：US20240224815A1
公开(公告)日：2024-07-04
申请号：US18392467
申请日：2023-12-21
Applicant: Melexis Technologies SA
Inventor： Guido DUPONT , Daniel ROSENFELD , Lionel TOMBEZ , Appo VAN DER WIEL , Gael CLOSE
CPC classification number: H10N52/80 , G01R33/0011 , G01R33/07 , H10N50/80 , H10N52/01 , H10N52/101 , H10N59/00
Abstract: A semiconductor device includes a semiconductor substrate, having an excitation circuit for applying an excitation signal, and a soft-magnetic component for guiding magnetic flux lines. The soft-magnetic component is electrically connected to the excitation by at least two electrical contacts in the form of back contacts or side contacts. The substrate further includes at least one electromagnetic transducer operatively connected to the soft-magnetic component. The excitation circuit includes a modulator for providing a modulated signal to the soft-magnetic component to modulate its magnetic permeability. The substrate further has a demodulator configured to demodulate signals obtained from the at least one electromagnetic transducer.
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