Patents by Inventor Thang Danh Truong

Thang Danh Truong 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: 11490517
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board, an electrical component mounted on a surface of the printed circuit board, and an interposer printed circuit board mounted on the surface of the printed circuit board. The interposer printed circuit board may comprise a first signal path to transmit a first electrical signal and a second signal path to transmit a second electrical signal that is different from the first electrical signal. The interposer printed circuit board may be configured to provide a standoff to prevent the electrical component from contacting a motherboard when the printed circuit board assembly is mounted to the motherboard.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: November 1, 2022
    Assignee: ABB POWER ELECTRONICS, INC.
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Patent number: 11439013
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board having a surface, an electrical component mounted on the surface, a pin mounted on the surface, and an interposer printed circuit board mounted on the surface. The electrical component may have a first height orthogonal to the surface. The pin may have a second height orthogonal to the surface, where the second height is greater than the first height. The interposer printed circuit board may comprise a pad and an outer solder bump positioned on the pad. The outer solder bump may be positioned at a third height orthogonal to the surface, where the third height is greater than the first height.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: September 6, 2022
    Assignee: ABB POWER ELECTRONICS, INC.
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Publication number: 20210212210
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board having a surface, an electrical component mounted on the surface, a pin mounted on the surface, and an interposer printed circuit board mounted on the surface. The electrical component may have a first height orthogonal to the surface. The pin may have a second height orthogonal to the surface, where the second height is greater than the first height. The interposer printed circuit board may comprise a pad and an outer solder bump positioned on the pad. The outer solder bump may be positioned at a third height orthogonal to the surface, where the third height is greater than the first height.
    Type: Application
    Filed: March 23, 2021
    Publication date: July 8, 2021
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Patent number: 10993325
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board having a surface, an electrical component mounted on the surface, a pin mounted on the surface, and an interposer printed circuit board mounted on the surface. The electrical component may have a first height orthogonal to the surface. The pin may have a second height orthogonal to the surface, where the second height is greater than the first height. The interposer printed circuit board may comprise a pad and an outer solder bump positioned on the pad. The outer solder bump may have a third height orthogonal to the surface, where the third height is greater than the first height.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: April 27, 2021
    Assignee: ABB Power Electronics Inc.
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Publication number: 20210037648
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board having a surface, an electrical component mounted on the surface, a pin mounted on the surface, and an interposer printed circuit board mounted on the surface. The electrical component may have a first height orthogonal to the surface. The pin may have a second height orthogonal to the surface, where the second height is greater than the first height. The interposer printed circuit board may comprise a pad and an outer solder bump positioned on the pad. The outer solder bump may have a third height orthogonal to the surface, where the third height is greater than the first height.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 4, 2021
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Publication number: 20210037649
    Abstract: Interposer printed circuit boards for power modules and associated methods are disclosed. In at least one illustrative embodiment, a printed circuit board assembly may comprise a printed circuit board, an electrical component mounted on a surface of the printed circuit board, and an interposer printed circuit board mounted on the surface of the printed circuit board. The interposer printed circuit board may comprise a first signal path to transmit a first electrical signal and a second signal path to transmit a second electrical signal that is different from the first electrical signal. The interposer printed circuit board may be configured to provide a standoff to prevent the electrical component from contacting a motherboard when the printed circuit board assembly is mounted to the motherboard.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 4, 2021
    Inventors: John Andrew Trelford, Richard John Yeager, Alok Kumar Lohia, Thang Danh Truong
  • Patent number: 10028392
    Abstract: A method of printing solder paste in a component board and a stencil set for doing the same are disclosed. In one embodiment, the method includes using a first stencil having a first thickness to print solder paste into at least one through hole in the component board. The method further includes using a second stencil having a second thickness to print solder paste for at least one surface mounted part on the component board, subsequent to using the first stencil.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: July 17, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: John Andrew Trelford, William Lonzo Woods, Jr., Thang Danh Truong
  • Publication number: 20160345443
    Abstract: A method of printing solder paste in a component board and a stencil set for doing the same are disclosed. In one embodiment, the method includes using a first stencil having a first thickness to print solder paste into at least one through hole in the component board. The method further includes using a second stencil having a second thickness to print solder paste for at least one surface mounted part on the component board, subsequent to using the first stencil.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Inventors: John Andrew Trelford, William Lonzo Woods, Jr., Thang Danh Truong