Patents by Inventor Wong Chiu Fai

Wong Chiu Fai 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).

  • Placement system apparatus and method
    Patent number: 6355298
    Abstract: An apparatus and a method are disclosed for placing at least two elements on a surface. The apparatus comprises means for supplying a surface, means for transferring the two elements to the surface, means for adjusting the position of the surface in a first direction, and means for adjusting the position of the transferring means in a second direction and about a rotation axis parallel to a third direction, the first, second and third directions being mutually orthogonal. Recognizing means are provided on at least one of the transferring means for recognizing position alignment marks provided on the surface.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: March 12, 2002
    Assignee: ASM Assembly Automation Ltd.
    Inventors: Cheng Chi Wah, Alfred Yue Ka On, Wong Chiu Fai