公开(公告)号：US20210018336A1

公开(公告)日：2021-01-21

申请号：US17060758

申请日：2020-10-01

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Christian SCHOTT ,  Samuel HUBER

IPC: G01D5/14

Abstract: A system for measuring an angular position of a rotor with respect to a stator, wherein the rotor is rotatable around a rotation axis, the system comprising: a magnetic source mounted on the rotor, having at least four magnet poles and providing a periodically repetitive magnetic field pattern with respect to the rotation axis; a sensor mounted on the stator and comprising a plurality of sensor elements for measuring at least one magnetic field component of the magnetic field and for providing a measurement signal thereof; the sensor being located substantially centered around the rotation axis, in a plane substantially perpendicular to the rotation axis at a first distance from the magnetic source; the sensor elements being located substantially on a circle at a second distance from the rotation axis; a calculator that determines the angular position by calculating it from the measurement signals.

公开(公告)号：US20200378834A1

公开(公告)日：2020-12-03

申请号：US16866698

申请日：2020-05-05

Applicant: Melexis Technologies NV

Inventor： Viktor KASSOVSKI ,  Slaveyko Ivanov SLAVEYKOV ,  Aleksandar Ivanov GARGAVELOV ,  Luc BUYDENS

IPC: G01J5/56 ,  G01J5/52

Abstract: A method of measuring temperature based upon a system of equations applying Stefan-Boltzmann's law and using a measurement value for an object to be measured and an ambient temperature value (Ta) comprises: pre-calculating (200, 202) a first vector (LUT1) and a second vector (LUT2). The first vector (LUT1) is a series of values proportional to received power based upon respective temperature values and in respect of a predetermined generic range of temperatures. The second vector (LUT2) is a series of sensitivity characteristic factor values based upon expected measured temperature values and in respect of a predetermined range of expected object measured temperatures. The first vector (LUT1) and the second vector (LUT2) are used (206) to generate a temporary vector (LUTT) of a series of values limited to the ambient temperature value to solve the system of equations in respect of the measurement value for the object, thereby determining (208) a temperature (To) for the object from the measurement value.

公开(公告)号：US20200341125A1

公开(公告)日：2020-10-29

申请号：US16849107

申请日：2020-04-15

Applicant: Melexis Technologies NV

Inventor： Volodymyr SELIUCHENKO

IPC: G01S7/4861 ,  G01S17/10 ,  G01S7/484

Abstract: A method of generating a time domain echo waveform comprises: a triggered source of pulsed electromagnetic radiation (108) emitting (202) a plurality of electromagnetic radiation pulses (132). A plurality of reflected pulses (134) irradiates an electromagnetic radiation detector cell (116), the detector (116) generating a plurality of stored electrical measurements in response thereto. The method also comprises generating a time-varying mixing signal and respectively applying (204, 206) phase-shifted variations thereof to the detector (116) while generating the plurality of electrical measurements. A signal pre-processor (126) reads out (210) the plurality of electrical measurements from the detector (116). A signal reconstruction unit (128) and then generates (300, 302, 500, 502) a spectrum (404, 604) in respect of the electrical measurements and a spectrum (406, 606) of the mixing signal. The signal reconstruction unit (126) generates a reconstruction signal spectrum (408) by deconvolving (304, 504) the spectrum (404, 604) of the stored electrical measurements using the spectrum (406, 606) of the mixing signal and then generates the echo waveform by converting (306, 506) the reconstruction signal spectrum (408) to the time domain.

公开(公告)号：US10811327B2

公开(公告)日：2020-10-20

申请号：US16735117

申请日：2020-01-06

Applicant: Melexis Technologies NV

Inventor： Gunnar Munder ,  Heiko Grimm ,  Thomas Freitag

IPC: G01R31/28 ,  H01L21/66 ,  H01L23/66 ,  H01L23/64 ,  H01L23/00

Abstract: An edge crack monitoring system for an integrated circuit provided on a die, comprises a conductive trace comprising at least a first conductive path for allowing current in a first direction, and a second adjacent conductive path for allowing current in a second direction opposite to the first direction. Both adjacent conductive paths form at least one loop surrounding a semiconductor device on a die. The arrangement of the trace is adapted to provide compensation of EM interferences. The trace comprises two terminals being connectable to a detection circuit for detecting damages by generating a fault signal upon detection of disruption of the conductive trace due to a damage. The conductive trace comprises high resistance portions with a resistance of at least 1 kΩ, adapted for reducing self-resonance.

公开(公告)号：US10775487B2

公开(公告)日：2020-09-15

申请号：US16133978

申请日：2018-09-18

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Volodymyr Seliuchenko

IPC: G01S7/486 ,  H01L27/146 ,  G01S7/484 ,  G01S17/10 ,  G01S7/4863

Abstract: A semiconductor pixel unit for sensing near-infrared light, and for optionally simultaneously sensing visible light. The pixel unit comprises a single substrate with a first semiconductor region and a second semiconductor region electrically separated by an insulating region, for example a buried oxide layer. The pixel unit is adapted for generating a lateral electrical field in the second region for facilitating transport of photoelectrons generated in the second region by near-infrared light passing through the first region and the insulating region.

公开(公告)号：US20200231432A1

公开(公告)日：2020-07-23

申请号：US16744593

申请日：2020-01-16

Applicant: Melexis Technologies NV

Inventor： Appolonius Jacobus VAN DER WIEL

IPC: B81B7/00 ,  B81C1/00 ,  G01L9/00

Abstract: A method of manufacturing a sensor device comprising: configuring a moulding support structure and a packaging mould so as to provide predetermined pathways to accommodate a moulding compound, the moulding support structure defining a first notional volume adjacent a second notional volume. An elongate sensor element and the moulding support structure are configured so that the moulding support structure fixedly carries the elongate sensor element and the elongate sensor element resides substantially in the first notional volume and extends towards the second notional volume, the elongate sensor element having an electrical contact electrically coupled to another electrical contact disposed within the second notional volume. The moulding support structure carrying (102) the elongate sensor element is disposed within the packaging mould (106). The moulding compound is then introduced (110) into the packaging mould during a predetermined period of time (112) so that the moulding compound fills the predetermined pathways, thereby filling the second notional volume and surrounding the elongate sensor element within the second notional volume without contacting the elongate sensor element.

公开(公告)号：US10673657B2

公开(公告)日：2020-06-02

申请号：US16170333

申请日：2018-10-25

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Michael Frey ,  Thomas Freitag

IPC: H04L25/02 ,  G06F13/36 ,  H04L12/40 ,  G06F13/40 ,  G06F13/42

Abstract: A transmitter for establishing communication between a device and a differential network bus includes current driving means connected to each of the two conduction lines of the differential network bus, through a first and second conduction paths of the transmitter; at least one unidirectional current regulator for extracting a first current equal to a known ratio of a parasitic current circulating through the first conduction path, with a direction inverse to the driving current through the conduction path connected to one of the lines of the differential bus; means for obtaining, from the first current, a second current with a magnitude equal to the original magnitude of the parasitic current; and means for introducing the second current into the second conduction path connected to the other line of the differential bus.

公开(公告)号：US20200099384A1

公开(公告)日：2020-03-26

申请号：US16577822

申请日：2019-09-20

Applicant: Melexis Technologies NV

Inventor： Viktor KASSOVSKI ,  Francois PIETTE ,  Carl VAN BUGGENHOUT

IPC: H03M1/06 ,  G01R19/32 ,  H03M1/10 ,  H03M1/12

Abstract: A method and a circuit for measuring an absolute voltage signal, such that the circuit comprises: an A/D convertor, and a controller adapted for: a) obtaining a first digital reference value for a first reference signal having a positive temperature coefficient; b) obtaining a second digital reference value for a second reference signal having a negative temperature coefficient; c) obtaining a raw digital signal value for the signal to be measured, while applying a same reference voltage for step a) to c); and d) calculating the absolute voltage value in the digital domain using a mathematical function of the first and second digital reference value, and the raw digital signal value.

公开(公告)号：US10586772B2

公开(公告)日：2020-03-10

申请号：US15882073

申请日：2018-01-29

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Appolonius Jacobus Van Der Wiel

IPC: H01L23/552 ,  H01L29/45 ,  H01L29/06 ,  H01L23/522 ,  H01L23/532 ,  H01L23/00 ,  H01L21/768 ,  H01L29/84 ,  H01L23/485 ,  G01D21/00 ,  H01L29/8605 ,  H01L21/285 ,  H01L23/31

Abstract: A sensor device for use in harsh media, comprising a silicon die comprises a lowly doped region, and a contact layer, contacting the silicon die. The contact layer comprises a refractory metal and an ohmic contact to the silicon die via a silicide of the refractory metal. A noble metal layer is provided over the contact layer such that the contact layer is completely covered by the noble metal layer. The noble metal layer comprises palladium, platinum or a metal alloy of palladium and/or platinum. The noble metal layer is patterned to form an interconnect structure and a contact connecting via the contact layer to the ohmic contact. The noble metal layer is adapted for providing a shield to prevent modulation of the lowly doped region by surface charges. The noble metal layer may advantageously protect the contact layer against harsh media in an external environment of the sensor device.

公开(公告)号：US10565076B2

公开(公告)日：2020-02-18

申请号：US15974784

申请日：2018-05-09

Applicant: MELEXIS TECHNOLOGIES NV

Inventor： Benoit Heroux ,  Philippe Laugier ,  Thomas Freitag

IPC: G06F11/22 ,  G06F11/30 ,  G06F11/10 ,  G06F13/12

Abstract: A device for supervising ports of an integrated circuit is arranged for exchanging information with a central processing unit of an integrated circuit and for communicating with ports of the integrated circuit. The device comprises address decoding means, access control means, and parity controlling means. The device for supervising ports comprises read-back information means arranged for receiving input from the port and for passing that input to the parity control means and in that the address decoding means, the access control means, the read-back information means and the parity controlling means are arranged to be operative in a background loop wherein a range of port addresses is monitored. The read-back information means reads data and one or more parity bits stored on ports with an address in the range and the parity controlling means performs a parity check on the one or more parity bits stored on the ports.