Patents by Inventor Olaf Hohlfeld

Olaf Hohlfeld 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: 11978700
    Abstract: A power semiconductor module arrangement includes two or more individual semiconductor devices arranged on a base layer. Each semiconductor device includes a lead frame, a semiconductor body arranged on the lead frame, and a molding material enclosing the semiconductor body and at least part of the lead frame. A frame is arranged on the base layer such that the frame surrounds the two or more individual semiconductor devices. A casting compound at least partly fills a capacity formed by the base layer and the frame, such that the casting compound at least partly encloses the two or more individual semiconductor devices.
    Type: Grant
    Filed: July 25, 2022
    Date of Patent: May 7, 2024
    Assignee: Infineon Technologies AG
    Inventors: Olaf Hohlfeld, Peter Kanschat
  • Patent number: 11955450
    Abstract: A method for producing a semiconductor arrangement includes: forming a first metallization layer on a first side of a dielectric insulation layer, the first metallization layer having at least two sections, each section being separated from a neighboring section by a recess; arranging a semiconductor body on one of the sections of the first metallization layer; and forming at least one indentation between a first side of the semiconductor body and a closest edge of the respective section of the first metallization layer. A distance between the first side and the closest edge of the section of the first metallization layer is between 0.5 mm and 5 mm.
    Type: Grant
    Filed: May 2, 2023
    Date of Patent: April 9, 2024
    Assignee: Infineon Technologies AG
    Inventor: Olaf Hohlfeld
  • Publication number: 20230275059
    Abstract: A method for producing a semiconductor arrangement includes: forming a first metallization layer on a first side of a dielectric insulation layer, the first metallization layer having at least two sections, each section being separated from a neighboring section by a recess; arranging a semiconductor body on one of the sections of the first metallization layer; and forming at least one indentation between a first side of the semiconductor body and a closest edge of the respective section of the first metallization layer. A distance between the first side and the closest edge of the section of the first metallization layer is between 0.5 mm and 5 mm.
    Type: Application
    Filed: May 2, 2023
    Publication date: August 31, 2023
    Inventor: Olaf Hohlfeld
  • Patent number: 11715647
    Abstract: A method includes forming a first electrically conductive layer on a first side of a dielectric insulation layer, forming a structured mask layer on a side of the first electrically conductive layer that faces away from the dielectric insulation layer, forming at least one trench in the first electrically conductive layer, said at least one trench extending through the entire first electrically conductive layer to the dielectric insulation layer, forming a coating which covers at least the bottom and the side walls of the at least one trench, and removing the mask layer after the coating has been formed.
    Type: Grant
    Filed: June 9, 2021
    Date of Patent: August 1, 2023
    Assignee: Infineon Technologies AG
    Inventors: Fabian Craes, Carsten Ehlers, Olaf Hohlfeld, Ulrich Wilke
  • Patent number: 11688712
    Abstract: A semiconductor arrangement includes a semiconductor substrate having a dielectric insulation layer and at least a first metallization layer arranged on a first side of the dielectric insulation layer. The first metallization layer includes at least two sections, each section being separated from a neighboring section by a recess. A semiconductor body is arranged on one of the sections of the first metallization layer. At least one indentation is arranged between a first side of the semiconductor body and a closest edge of the respective section of the first metallization layer. A distance between the first side and the closest edge of the section of the first metallization layer is between 0.5 mm and 5 mm.
    Type: Grant
    Filed: February 17, 2020
    Date of Patent: June 27, 2023
    Assignee: Infineon Technologies AG
    Inventor: Olaf Hohlfeld
  • Patent number: 11610830
    Abstract: A power semiconductor module includes a power semiconductor chip arranged between a first substrate and a second substrate and electrically coupled to the substrates, and a temperature sensor arranged between the substrates and laterally besides the power semiconductor chip such that a first side of the temperature sensor faces the first substrate and a second side of the temperature sensor faces the second substrate. A first electrical contact of the temperature sensor is arranged on the first side and electrically coupled to the first substrate. A second electrical contact of the temperature sensor is arranged on the second side and electrically coupled to the second substrate.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: March 21, 2023
    Assignee: Infineon Technologies AG
    Inventors: Christian Schweikert, Juergen Hoegerl, Olaf Hohlfeld, Waldemar Jakobi
  • Patent number: 11557522
    Abstract: A method is disclosed for producing a power semiconductor module that includes a substrate, at least one semiconductor body, a connecting element and a contact element. The method includes: arranging the substrate in a housing having walls; at least partly filling a capacity formed by the walls of the housing and the substrate with an encapsulation material; hardening the encapsulation material to form a hard encapsulation; and closing the housing, wherein the contact element extends from the connecting element through an interior of the housing and through an opening in a cover of the housing to an outside of the housing in a direction perpendicular to a first surface of a first metallization layer of the substrate.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 17, 2023
    Assignee: Infineon Technologies AG
    Inventors: Alexander Roth, Olaf Hohlfeld
  • Publication number: 20220359365
    Abstract: A power semiconductor module arrangement includes two or more individual semiconductor devices arranged on a base layer. Each semiconductor device includes a lead frame, a semiconductor body arranged on the lead frame, and a molding material enclosing the semiconductor body and at least part of the lead frame. A frame is arranged on the base layer such that the frame surrounds the two or more individual semiconductor devices. A casting compound at least partly fills a capacity formed by the base layer and the frame, such that the casting compound at least partly encloses the two or more individual semiconductor devices.
    Type: Application
    Filed: July 25, 2022
    Publication date: November 10, 2022
    Inventors: Olaf Hohlfeld, Peter Kanschat
  • Publication number: 20220310465
    Abstract: A power semiconductor module includes a substrate of planar sheet metal including a plurality of islands that are each defined by channels that extend between upper and lower surfaces of the substrate, a first semiconductor die mounted on a first one of the islands, a molded body of encapsulant that covers the metal substrate, fills the channels, and encapsulates the first semiconductor die, a hole in the molded body that extends to a recess in the upper surface of the substrate, and a press-fit connector arranged in the hole such an interior end of the press-fit connector is mechanically and electrically connected to the substrate.
    Type: Application
    Filed: June 16, 2022
    Publication date: September 29, 2022
    Inventors: Wu Hu Li, Raphael Hellwig, Olaf Hohlfeld, Martin Mayer, Ivan Nikitin
  • Patent number: 11437311
    Abstract: A method for producing a power semiconductor module arrangement includes arranging two or more individual semiconductor devices on a base layer, each semiconductor device including a lead frame, a semiconductor body arranged on the lead frame, and a molding material enclosing the semiconductor body and at least part of the lead frame, arranging a frame on the base layer such that the frame surrounds the two or more individual semiconductor devices, and filling a first material into a capacity formed by the base layer and the frame, and hardening the first material to form a casting compound that at least partly fills the capacity, thereby at least partly encloses the two or more individual semiconductor devices.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: September 6, 2022
    Assignee: Infineon Technologies AG
    Inventors: Olaf Hohlfeld, Peter Kanschat
  • Patent number: 11404336
    Abstract: A method of forming a power semiconductor module includes providing a substrate of planar sheet metal, forming channels in an upper surface of the substrate that partially extend through a thickness of the substrate and define a plurality of islands in the substrate, mounting a first semiconductor die on a first one of the islands, forming a molded body of encapsulant that covers the substrate, fills the channels, and encapsulates the semiconductor die, forming a hole in the molded body and a recess in the upper surface of the substrate beneath the hole, and arranging a press-fit connector in the hole and forming a mechanical and electrical connection between an interior end of the press-fit connector and the substrate.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: August 2, 2022
    Assignee: Infineon Technologies Austria AG
    Inventors: Wu Hu Li, Raphael Hellwig, Olaf Hohlfeld, Martin Mayer, Ivan Nikitin
  • Patent number: 11322451
    Abstract: A power semiconductor module includes a power semiconductor die attached to the first metallized side, a passive component attached to the first metallized side, a first isolation layer encapsulating the power semiconductor die and the passive component, a first structured metallization layer on the first isolation layer, and a first plurality of electrically conductive vias extending through the first isolation layer from the first structured metallization layer to the power semiconductor die and the passive component.
    Type: Grant
    Filed: January 16, 2019
    Date of Patent: May 3, 2022
    Assignee: Infineon Technologies AG
    Inventors: Olaf Hohlfeld, Juergen Hoegerl, Gottfried Beer, Magdalena Hoier, Georg Meyer-Berg
  • Publication number: 20210407873
    Abstract: A method of forming a power semiconductor module includes providing a substrate of planar sheet metal, forming channels in an upper surface of the substrate that partially extend through a thickness of the substrate and define a plurality of islands in the substrate, mounting a first semiconductor die on a first one of the islands, forming a molded body of encapsulant that covers the substrate, fills the channels, and encapsulates the semiconductor die, forming a hole in the molded body and a recess in the upper surface of the substrate beneath the hole, and arranging a press-fit connector in the hole and forming a mechanical and electrical connection between an interior end of the press-fit connector and the substrate.
    Type: Application
    Filed: June 29, 2020
    Publication date: December 30, 2021
    Inventors: Wu Hu Li, Raphael Hellwig, Olaf Hohlfeld, Martin Mayer, Ivan Nikitin
  • Publication number: 20210398821
    Abstract: A method includes forming a first electrically conductive layer on a first side of a dielectric insulation layer, forming a structured mask layer on a side of the first electrically conductive layer that faces away from the dielectric insulation layer, forming at least one trench in the first electrically conductive layer, said at least one trench extending through the entire first electrically conductive layer to the dielectric insulation layer, forming a coating which covers at least the bottom and the side walls of the at least one trench, and removing the mask layer after the coating has been formed.
    Type: Application
    Filed: June 9, 2021
    Publication date: December 23, 2021
    Inventors: Fabian Craes, Carsten Ehlers, Olaf Hohlfeld, Ulrich Wilke
  • Publication number: 20210335682
    Abstract: A method is disclosed for producing a power semiconductor module that includes a substrate, at least one semiconductor body, a connecting element and a contact element. The method includes: arranging the substrate in a housing having walls; at least partly filling a capacity formed by the walls of the housing and the substrate with an encapsulation material; hardening the encapsulation material to form a hard encapsulation; and closing the housing, wherein the contact element extends from the connecting element through an interior of the housing and through an opening in a cover of the housing to an outside of the housing in a direction perpendicular to a first surface of a first metallization layer of the substrate.
    Type: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Alexander Roth, Olaf Hohlfeld
  • Patent number: 11081414
    Abstract: A power semiconductor module arrangement includes a substrate arranged in a housing. The substrate includes a first metallization layer arranged on a first side of a dielectric insulation layer and a second metallization layer arranged on a second side of the dielectric insulation layer. At least one semiconductor body is mounted on a first surface of the first metallization layer facing away from the dielectric insulation layer. A connecting element is arranged on and electrically connected to the first surface. A contact element is inserted into and electrically connected to the connecting element, and extends from the connecting element through an interior of the housing and through an opening in the cover of the housing to an outside of the housing in a direction perpendicular to the first surface. A hard encapsulation is arranged adjacent to the first metallization layer and at least partly fills the inside of the housing.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: August 3, 2021
    Assignee: Infineon Technologies AG
    Inventors: Alexander Roth, Olaf Hohlfeld
  • Publication number: 20210074624
    Abstract: A method for producing a power semiconductor module arrangement includes arranging two or more individual semiconductor devices on a base layer, each semiconductor device including a lead frame, a semiconductor body arranged on the lead frame, and a molding material enclosing the semiconductor body and at least part of the lead frame, arranging a frame on the base layer such that the frame surrounds the two or more individual semiconductor devices, and filling a first material into a capacity formed by the base layer and the frame, and hardening the first material to form a casting compound that at least partly fills the capacity, thereby at least partly encloses the two or more individual semiconductor devices.
    Type: Application
    Filed: November 18, 2020
    Publication date: March 11, 2021
    Inventors: Olaf Hohlfeld, Peter Kanschat
  • Patent number: 10867902
    Abstract: A power semiconductor module arrangement including two or more individual semiconductor devices each semiconductor device having a lead frame, a semiconductor body arranged on the lead frame, and a molding material enclosing the semiconductor body and at least part of the lead frame. The power semiconductor module arrangement further includes a frame surrounding the two or more individual semiconductor devices, and a casting compound at least partly filling a capacity within the frame, thereby at least partly enclosing the two or more individual semiconductor devices.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: December 15, 2020
    Assignee: Infineon Technologies AG
    Inventors: Olaf Hohlfeld, Peter Kanschat
  • Publication number: 20200321262
    Abstract: A power semiconductor module includes a power semiconductor chip arranged between a first substrate and a second substrate and electrically coupled to the substrates, and a temperature sensor arranged between the substrates and laterally besides the power semiconductor chip such that a first side of the temperature sensor faces the first substrate and a second side of the temperature sensor faces the second substrate. A first electrical contact of the temperature sensor is arranged on the first side and electrically coupled to the first substrate. A second electrical contact of the temperature sensor is arranged on the second side and electrically coupled to the second substrate.
    Type: Application
    Filed: April 3, 2020
    Publication date: October 8, 2020
    Inventors: Christian Schweikert, Juergen Hoegerl, Olaf Hohlfeld, Waldemar Jakobi
  • Publication number: 20200266171
    Abstract: A semiconductor arrangement includes a semiconductor substrate having a dielectric insulation layer and at least a first metallization layer arranged on a first side of the dielectric insulation layer. The first metallization layer includes at least two sections, each section being separated from a neighboring section by a recess. A semiconductor body is arranged on one of the sections of the first metallization layer. At least one indentation is arranged between a first side of the semiconductor body and a closest edge of the respective section of the first metallization layer. A distance between the first side and the closest edge of the section of the first metallization layer is between 0.5 mm and 5 mm.
    Type: Application
    Filed: February 17, 2020
    Publication date: August 20, 2020
    Inventor: Olaf Hohlfeld