Patents by Inventor Carlos Castro Serrato

Carlos Castro Serrato has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10041979
    Abstract: A method of sensing current flowing in a power module is provided. The module includes a first substrate having a metallized side, a second substrate spaced apart from the first substrate and having a metallized side facing the metallized side of the first substrate, and a semiconductor die interposed between the first and second substrates. The semiconductor die has a first side connected to the metallized side of the first substrate and an opposing second side connected to the metallized side of the second substrate. The module further includes a sensor connected to the metallized side of the first substrate and galvanically isolated from the metallized side of the second substrate. The sensor is aligned with a first metal region of the metallized side of the second substrate, for measuring a magnetic field generated by the first metal region responsive to the current flowing through the first metal region.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: August 7, 2018
    Assignee: Infineon Technologies AG
    Inventor: Carlos Castro Serrato
  • Patent number: 9933506
    Abstract: An example of a power converter is disclosed. At least one converter module provides an alternating output voltage. The converter module is coupled to an output terminal by a conductor path. A current sensor is placed within a magnetic field generated by a current through the conductor path. The current sensor includes at least one magneto-resistive sensing element to provide a sensor signal in response to the magnetic field. A signal generator causes a magnetic self-test field at the magneto-resistive sensing element. A readout circuit receives a first sensor signal of the magneto-resistive sensing element before the magnetic self-test field is applied and a second sensor signal of the magneto-resistive sensing element after the magnetic self-test field is applied. An evaluation circuit determines information indicating a safe operation of the current sensor based on an evaluation of the first sensor signal and the second sensor signal.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: April 3, 2018
    Assignee: Infineon Technologies AG
    Inventors: Franz Jost, Carlos Castro Serrato
  • Publication number: 20170234911
    Abstract: A method of sensing current flowing in a power module is provided. The module includes a first substrate having a metallized side, a second substrate spaced apart from the first substrate and having a metallized side facing the metallized side of the first substrate, and a semiconductor die interposed between the first and second substrates. The semiconductor die has a first side connected to the metallized side of the first substrate and an opposing second side connected to the metallized side of the second substrate. The module further includes a sensor connected to the metallized side of the first substrate and galvanically isolated from the metallized side of the second substrate. The sensor is aligned with a first metal region of the metallized side of the second substrate, for measuring a magnetic field generated by the first metal region responsive to the current flowing through the first metal region.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventor: Carlos Castro Serrato
  • Patent number: 9678173
    Abstract: A power module includes a first substrate having a metallized side, a second substrate spaced apart from the first substrate and having a metallized side facing the metallized side of the first substrate, and a semiconductor die interposed between the first and second substrates. The semiconductor die has a first side connected to the metallized side of the first substrate and an opposing second side connected to the metallized side of the second substrate. The power module further includes a sensor connected to the metallized side of the first substrate and galvanically isolated from the metallized side of the second substrate. The sensor is aligned with a first metal region of the metallized side of the second substrate so that the sensor can measure a magnetic field generated by the first metal region.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: June 13, 2017
    Assignee: Infineon Technologies AG
    Inventor: Carlos Castro Serrato
  • Publication number: 20170074961
    Abstract: An example of a device comprises a signal generator to generate a signal causing a magnetic self test field for a magneto-resistive sensing element. A signal input is configures to receive a first sensor signal at a first time instant before the magnetic self test field is applied and a second sensor signal at a second time instant after the magnetic self test field is applied. An evaluation circuit is configured to determine information indicating a safe operation based on an evaluation of the first sensor signal and the second sensor signal.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Franz Jost, Carlos Castro Serrato
  • Patent number: 9575113
    Abstract: In one example, a method includes determining that an insulated-gate bipolar transistor (IGBT) is saturated, and while the IGBT is saturated, determining a collector-emitter saturation voltage (VCESat) of the IGBT.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: February 21, 2017
    Assignee: Infineon Technologies AG
    Inventors: Michael Mankel, Carlos Castro-Serrato
  • Patent number: 9507005
    Abstract: An example of a device comprises a signal generator to generate a signal causing a magnetic self test field for a magneto-resistive sensing element. A signal input is configures to receive a first sensor signal at a first time instant before the magnetic self test field is applied and a second sensor signal at a second time instant after the magnetic self test field is applied. An evaluation circuit is configured to determine information indicating a safe operation based on an evaluation of the first sensor signal and the second sensor signal.
    Type: Grant
    Filed: March 5, 2014
    Date of Patent: November 29, 2016
    Assignee: Infineon Technologies AG
    Inventors: Franz Jost, Carlos Castro Serrato
  • Patent number: 9483725
    Abstract: A device includes a semiconductor element and a radio frequency identification (RFID) tag. The RFID tag is configured to provide information about at least one of a property of the device and a property of a manufacturing of the device.
    Type: Grant
    Filed: October 29, 2015
    Date of Patent: November 1, 2016
    Assignee: Infineon Technology
    Inventors: Jose Javier Padilla Alcaide, Carlos Castro Serrato
  • Patent number: 9449895
    Abstract: A cooling system for molded modules includes a plurality of individual modules each including a semiconductor die encapsulated by a mold compound, a plurality of leads electrically connected to the semiconductor die and at least partly uncovered by the mold compound, and a cooling plate at least partly uncovered by the mold compound. A molded body surrounds a periphery of each individual module to form a multi-die module. The leads of each individual module and the cooling plates are at least partly uncovered by the molded body. A lid with a port is attached to a periphery of the molded body at a first side of the multi-die module. The lid seals the multi-die module at the first side to form a cavity between the lid and the molded body for permitting fluid exiting or entering the port to contact the cooling plates of each individual module.
    Type: Grant
    Filed: May 3, 2013
    Date of Patent: September 20, 2016
    Assignee: Infineon Technologies AG
    Inventors: Inpil Yoo, Carlos Castro Serrato
  • Publication number: 20160140433
    Abstract: A device includes a semiconductor element and a radio frequency identification (RFID) tag. The RFID tag is configured to provide information about at least one of a property of the device and a property of a manufacturing of the device.
    Type: Application
    Filed: October 29, 2015
    Publication date: May 19, 2016
    Inventors: Jose Javier Padilla Alcaide, Carlos Castro Serrato
  • Publication number: 20150253412
    Abstract: An example of a device comprises a signal generator to generate a signal causing a magnetic self test field for a magneto-resistive sensing element. A signal input is configures to receive a first sensor signal at a first time instant before the magnetic self test field is applied and a second sensor signal at a second time instant after the magnetic self test field is applied. An evaluation circuit is configured to determine information indicating a safe operation based on an evaluation of the first sensor signal and the second sensor signal.
    Type: Application
    Filed: March 5, 2014
    Publication date: September 10, 2015
    Inventors: Franz Jost, Carlos Castro Serrato
  • Publication number: 20150226787
    Abstract: In one example, a method includes determining that an insulated-gate bipolar transistor (IGBT) is saturated, and while the IGBT is saturated, determining a collector-emitter saturation voltage (VCESat) of the IGBT.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 13, 2015
    Applicant: Infineon Technologies AG
    Inventors: Michael Mankel, Carlos Castro-Serrato
  • Publication number: 20140327128
    Abstract: A cooling system for molded modules includes a plurality of individual modules each including a semiconductor die encapsulated by a mold compound, a plurality of leads electrically connected to the semiconductor die and at least partly uncovered by the mold compound, and a cooling plate at least partly uncovered by the mold compound. A molded body surrounds a periphery of each individual module to form a multi-die module. The leads of each individual module and the cooling plates are at least partly uncovered by the molded body. A lid with a port is attached to a periphery of the molded body at a first side of the multi-die module. The lid seals the multi-die module at the first side to form a cavity between the lid and the molded body for permitting fluid exiting or entering the port to contact the cooling plates of each individual module.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 6, 2014
    Applicant: Infineon Technologies AG
    Inventors: Inpil Yoo, Carlos Castro Serrato
  • Publication number: 20140327436
    Abstract: A power module includes a first substrate having a metallized side, a second substrate spaced apart from the first substrate and having a metallized side facing the metallized side of the first substrate, and a semiconductor die interposed between the first and second substrates. The semiconductor die has a first side connected to the metallized side of the first substrate and an opposing second side connected to the metallized side of the second substrate. The power module further includes a sensor connected to the metallized side of the first substrate and galvanically isolated from the metallized side of the second substrate. The sensor is aligned with a first metal region of the metallized side of the second substrate so that the sensor can measure a magnetic field generated by the first metal region.
    Type: Application
    Filed: May 3, 2013
    Publication date: November 6, 2014
    Inventor: Carlos Castro Serrato