Patents by Inventor Alexandra Ludsteck-Pechloff

Alexandra Ludsteck-Pechloff 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).

  • Publication number: 20240096842
    Abstract: A method for fabricating a SiC power semiconductor device includes: providing a SiC power semiconductor die; depositing a metallization layer over the power semiconductor die, the metallization layer including a first metal; arranging the power semiconductor die over a die carrier such that the metallization layer faces the die carrier, the die carrier being at least partially covered by a plating that includes Ni; and diffusion soldering the power semiconductor die to the die carrier such that a first intermetallic compound is formed between the power semiconductor die and the plating, the first intermetallic compound including Ni3Sn4.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Inventors: Ralf Otremba, Gregor Langer, Paul Frank, Alexander Heinrich, Alexandra Ludsteck-Pechloff, Daniel Pedone
  • Publication number: 20230290709
    Abstract: A semiconductor package includes a power semi conductor chip comprising SiC, a leadframe part including Cu, wherein the power semiconductor chip is arranged on the leadframe part, and a solder joint electrically and mechanically coupling the power semiconductor chip to the leadframe part, wherein the solder joint includes at least one intermetallic phase.
    Type: Application
    Filed: May 16, 2023
    Publication date: September 14, 2023
    Inventors: Ralf Otremba, Paul Frank, Alexander Heinrich, Alexandra Ludsteck-Pechloff, Daniel Pedone
  • Patent number: 11688670
    Abstract: A semiconductor package includes a power semiconductor chip comprising SiC, a leadframe part comprising Cu, wherein the power semiconductor chip is arranged on the leadframe part, and a solder joint electrically and mechanically coupling the power semiconductor chip to the leadframe part, wherein the solder joint comprises at least one intermetallic phase.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: June 27, 2023
    Assignee: Infineon Technologies Austria AG
    Inventors: Ralf Otremba, Paul Frank, Alexander Heinrich, Alexandra Ludsteck-Pechloff, Daniel Pedone
  • Publication number: 20210225795
    Abstract: A SiC power semiconductor device includes: a power semiconductor die including SiC and a metallization layer, wherein the metallization layer includes a first metal; a die carrier, wherein the power semiconductor die is arranged over the die carrier such that the metallization layer faces the die carrier, the die carrier being at least partially covered by a plating that includes Ni; and a first intermetallic compound arranged between the power semiconductor die and the plating and including Ni3Sn4.
    Type: Application
    Filed: January 15, 2021
    Publication date: July 22, 2021
    Inventors: Ralf Otremba, Gregor Langer, Paul Frank, Alexander Heinrich, Alexandra Ludsteck-Pechloff, Daniel Pedone
  • Publication number: 20210134708
    Abstract: A semiconductor package includes a power semiconductor chip comprising SiC, a leadframe part comprising Cu, wherein the power semiconductor chip is arranged on the leadframe part, and a solder joint electrically and mechanically coupling the power semiconductor chip to the leadframe part, wherein the solder joint comprises at least one intermetallic phase.
    Type: Application
    Filed: October 26, 2020
    Publication date: May 6, 2021
    Inventors: Ralf Otremba, Paul Frank, Alexander Heinrich, Alexandra Ludsteck-Pechloff, Daniel Pedone
  • Patent number: 10636900
    Abstract: A power semiconductor transistor includes an electrically conductive contact structure including a plurality of contacts. A first one of the contacts is electrically connected to both a first load terminal and a first zone of a doped semiconductor structure. A second one of the contacts is electrically coupled to one of the first load terminal and a control electrode. The second contact laterally overlaps with both a second zone of the doped semiconductor structure, and a gap is formed between two adjacent field plates. The second zone of the doped semiconductor structure terminates in a section laterally overlapping with the gap.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: April 28, 2020
    Assignee: Infineon Technologies Austria AG
    Inventors: Viktoryia Uhnevionak, Philip Christoph Brandt, Frank Hille, Alexandra Ludsteck-Pechloff, Frank Dieter Pfirsch
  • Publication number: 20190109230
    Abstract: A power semiconductor transistor includes an electrically conductive contact structure including a plurality of contacts. A first one of the contacts is electrically connected to both a first load terminal and a first zone of a doped semiconductor structure. A second one of the contacts is electrically coupled to one of the first load terminal and a control electrode. The second contact laterally overlaps with both a second zone of the doped semiconductor structure, and a gap is formed between two adjacent field plates. The second zone of the doped semiconductor structure terminates in a section laterally overlapping with the gap.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Viktoryia Uhnevionak, Philip Christoph Brandt, Frank Hille, Alexandra Ludsteck-Pechloff, Frank Dieter Pfirsch