Patents by Inventor Hoi Tang

Hoi Tang 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: 20070131733
    Abstract: An apparatus is provided for arranging for processing a semiconductor device having surface components on its surface. A device support comprising a set of protrusions for contacting a surface of the semiconductor device supports the semiconductor device on a plane. The protrusions are arranged and positioned such that they avoid contact with the surface components on the surface. In order to grip the semiconductor device supported on the plane, a clamping device having a first set of clamps is configured for gripping the semiconductor device along a first axis and a second set of clamps is configured for gripping the semiconductor device along a second axis perpendicular to the first axis.
    Type: Application
    Filed: December 12, 2005
    Publication date: June 14, 2007
    Inventors: Chi Cheng, Hoi Tang, Tim Mak, See Chan
  • Publication number: 20060154386
    Abstract: An apparatus and method are provided for aligning a plurality of semiconductor devices placed on a carrier. Alignment guides are located adjacent to each device in use, and arranged such that they correspond to a desired alignment of each semiconductor device. For alignment, the semiconductor devices are held by a positioning device comprising a plurality of holders, each holder being configured to generate a force to hold a semiconductor device. Actuators are also provided that are operative to move the positioning device and holders to bias the semiconductor devices against the alignment guides to orientate the semiconductor devices until they are aligned with said alignment guides.
    Type: Application
    Filed: January 7, 2005
    Publication date: July 13, 2006
    Inventors: Chi Cheng, Hoi Tang, Tim Mak, Chi Leung