Patents by Inventor Wu Hu Li

Wu Hu Li 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: 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: 11450642
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: September 20, 2022
    Assignee: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • 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
  • 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: 20210118843
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Application
    Filed: December 23, 2020
    Publication date: April 22, 2021
    Applicant: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Patent number: 10896893
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: January 19, 2021
    Assignee: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Patent number: 10892247
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: January 12, 2021
    Assignee: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Publication number: 20200381314
    Abstract: A method for providing coated leadframes in a process line includes: feeding a plurality of leadframes successively into a process line; depositing a layer onto a main face of the leadframes; measuring physical properties of the layer by one of ellipsometry or reflectometry; assigning measured physical data to any one of a plurality of categories; and depending on a resulting category of the measured physical data, altering process parameters of the depositing, not altering the process parameters of the depositing, or shutting down the process line.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 3, 2020
    Inventors: Wu Hu Li, Stefan Schwab, Verena Muhr, Edmund Riedl, Alexander Roth, Harry Sax
  • Publication number: 20200243480
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 30, 2020
    Applicant: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Publication number: 20200219841
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Application
    Filed: March 16, 2020
    Publication date: July 9, 2020
    Applicant: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Patent number: 10615145
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: April 7, 2020
    Assignee: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Patent number: 10366946
    Abstract: A connection member for connecting an electronic chip, wherein the connection member comprises a bulk body, and a coating at least partially coating the bulk body and comprising a material having higher electric and higher thermal conductivity than the bulk body, wherein a ratio between a thickness of the coating and a thickness of the bulk body is at least 0.0016 at at least a part of the connection member.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: July 30, 2019
    Assignee: Infineon Technologies AG
    Inventors: Wu Hu Li, Edmund Riedl, Thomas Horedt, Ali Mazloum-Nejadari
  • Publication number: 20190131218
    Abstract: A connection member for connecting an electronic chip, wherein the connection member comprises a bulk body, and a coating at least partially coating the bulk body and comprising a material having higher electric and higher thermal conductivity than the bulk body, wherein a ratio between a thickness of the coating and a thickness of the bulk body is at least 0.0016 at at least a part of the connection member.
    Type: Application
    Filed: October 30, 2017
    Publication date: May 2, 2019
    Inventors: Wu Hu LI, Edmund RIEDL, Thomas HOREDT, Ali MAZLOUM-NEJADARI
  • Publication number: 20190035764
    Abstract: A method of making a semiconductor including soldering a conductor to an aluminum metallization is disclosed. In one example, the method includes substituting an aluminum oxide layer on the aluminum metallization by a substitute metal oxide layer or a substitute metal alloy oxide layer. Then, substitute metal oxides in the substitute metal oxide layer or the substitute metal alloy oxide layer are at least partly reduced. The conductor is soldered to the aluminum metallization using a solder material.
    Type: Application
    Filed: July 16, 2018
    Publication date: January 31, 2019
    Applicant: Infineon Technologies AG
    Inventors: Edmund Riedl, Wu Hu Li, Alexander Heinrich, Ralf Otremba, Werner Reiss
  • Patent number: 8703544
    Abstract: An electronic component and method of making an electronic component is disclosed. In one embodiment, the electronic component includes a frame having a base layer, a first layer, a second layer including palladium placed on the first layer, and a third layer including gold placed on the second layer. A semiconductor chip is positioned on the frame.
    Type: Grant
    Filed: February 28, 2012
    Date of Patent: April 22, 2014
    Assignee: Infineon Technologies AG
    Inventors: Wu Hu Li, Heng Wan Hong
  • Publication number: 20120156832
    Abstract: An electronic component and method of making an electronic component is disclosed. In one embodiment, the electronic component includes a frame having a base layer, a first layer, a second layer including palladium placed on the first layer, and a third layer including gold placed on the second layer. A semiconductor chip is positioned on the frame.
    Type: Application
    Filed: February 28, 2012
    Publication date: June 21, 2012
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Wu Hu Li, Heng Wan Hong
  • Patent number: 8125060
    Abstract: An electronic component is disclosed. In one embodiment, the electronic component includes a frame having a base layer, a first layer, a second layer including palladium placed on the first layer, and a third layer including gold placed on the second layer. A semiconductor chip is positioned on the frame.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: February 28, 2012
    Assignee: Infineon Technologies AG
    Inventors: Wu Hu Li, Heng Wan Hong
  • Patent number: 7875968
    Abstract: Leadframe for a semiconductor package and manufacturing from such leadframe including a plurality of connection leads supported in a frame. Die mounting plate is centrally located in the leadframe and is supported by a plurality of support leads which are electrically connected to the die mounting pad and extending in a direction outwardly therefrom towards the frame. Each support lead is formed with a connection pad portion and a down set link portion. Each connection pad portion is spaced from the die mounting plate and is connected to a conductive bonding ground wire from a semiconductor device mounted on the die mounting plate. Each down set link portion is electrically connected to the die mounting pad and supports the die mounting pad in a spaced arrangement from the connection leads. The connection pad portion and the down set link portion overlap, in the direction of extension of the support lead.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: January 25, 2011
    Assignee: Infineon Technologies AG
    Inventors: Wu Hu Li, Mohamad Yazid Wagiman, Min Wee Low
  • Publication number: 20080135995
    Abstract: An electronic component is disclosed. In one embodiment, the electronic component includes a frame having a base layer, a first layer, a second layer including palladium placed on the first layer, and a third layer including gold placed on the second layer. A semiconductor chip is positioned on the frame.
    Type: Application
    Filed: December 8, 2006
    Publication date: June 12, 2008
    Inventors: Wu Hu Li, Heng Wan Hong
  • Publication number: 20080128741
    Abstract: A leadframe for a semiconductor package and a semiconductor package manufactured from such a leadframe including a plurality of connection leads supported in a frame. A die mounting plate is centrally located in the leadframe and is supported by a plurality of support leads with each support lead electrically connected to the die mounting pad and extending in a direction outwardly therefrom towards the frame. Each support lead is formed with a connection pad portion and a down set link portion. Each connection pad portion is spaced from the die mounting plate and is designed for connection to a conductive bonding ground wire from a semiconductor device mounted on the die mounting plate. Each down set link portion is electrically connected to the die mounting pad and is arranged to support the die mounting pad in a spaced arrangement from the connection leads. The connection pad portion and the down set link portion overlap, in the direction of extension of the support lead.
    Type: Application
    Filed: February 5, 2008
    Publication date: June 5, 2008
    Inventors: Wu Hu Li, Mohamad Yazid Wagiman, Min Wee Low