Patents by Inventor Wattanapong Viriya

Wattanapong Viriya 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: 6485991
    Abstract: Systems and methods are disclosed for testing semiconductor devices, using a tester providing tested semiconductor devices to a device output track, which feeds the semiconductor devices into a storage tube. The tester selectively removes the storage tube from the output track when the tube is filled and when no device is in the output track proximate the semiconductor storage tube. In addition, the tester refrains from removing the storage tube from the output track when a semiconductor device is in the device output track proximate the storage tube, so as to prevent or reduce damage to semiconductor devices during removal of the storage tube from the output track.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: November 26, 2002
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Naramitr Jitramas, Wattanapong Viriya, Watcharin Namkang
  • Patent number: 6475826
    Abstract: Aspects for detecting integrated circuit package orientation in carrier tape packing are described. In accordance with these aspects, a digital circuit is provided over a carrier rail of a tape and reel system. The digital circuit detects package orientation based on a chamfer side of packages within a tape on the carrier rail. The digital circuit further includes at least two optical sensors, where the optical sensors emit a light beam and sense reflection of the light beam for each package within the tape for use in determining package orientation in an automated manner.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: November 5, 2002
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Somboon Sritulanont, Wattanapong Viriya, Amorn Hongmala