Patents by Inventor Choong Fatt HO

Choong Fatt HO 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).

  • Apparatus and method for inspecting a semiconductor package
    Patent number: 9911666
    Abstract: There is provided an apparatus and method for inspecting a semiconductor package. The apparatus includes at least one 3D camera positioned at a first angle relative to a normal axis of the semiconductor package; and a light source configured to provide illumination for the at least one 3D camera, the light source being directed at the semiconductor package. The method includes casting a shadow of a bonded wire onto the semiconductor package; obtaining a 3D image of the semiconductor package; determining a distance S of the shadow and the bonded wire in the image; and obtaining a wire loop height H of the bonded wire.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: March 6, 2018
    Assignee: SAEDGE VISION SOLUTIONS PTE. LTD.
    Inventors: Ah Kow Chin, Choong Fatt Ho, Victor Vertoprakhov, Soon Wei Wong
  • AN APPARATUS AND METHOD FOR INSPECTING A SEMICONDUCTOR PACKAGE
    Publication number: 20160254199
    Abstract: There is provided an apparatus and method for inspecting a semiconductor package. The apparatus includes at least one 3D camera positioned at a first angle relative to a normal axis of the semiconductor package; and a light source configured to provide illumination for the at least one 3D camera, the light source being directed at the semiconductor package. The method includes casting a shadow of a bonded wire onto the semiconductor package; obtaining a 3D image of the semiconductor package; determining a distance S of the shadow and the bonded wire in the image; and obtaining a wire loop height H of the bonded wire.
    Type: Application
    Filed: November 10, 2014
    Publication date: September 1, 2016
    Applicant: SAEDGE VISION SOLUTIONS PTE LTD
    Inventors: Ah Kow CHIN, Choong Fatt HO, Victor VERTOPRAKHOV, Soon Wei WONG