Patents by Inventor Ashok S. Prabhu

Ashok S. Prabhu 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).

  • Multi-station rotary die handling device
    Patent number: 6364089
    Abstract: The invention relates to apparatus and methods for semiconductor device handling. In one aspect, the invention relates to a rotary flipper including a wheel having a plurality of stations. A semiconductor device is placed within a first station in a first orientation. While the semiconductor device is held, the wheel portion of the rotary flipper rotates and the next station receives another semiconductor device. When the first station is in an unloading position, the semiconductor device is released. At this point, the semiconductor device is oriented in a second position. In one aspect, the semiconductor device is released into a cavity of a tape and reel. In another aspect, vacuum pressure is applied to hold the die. In one embodiment, the invention relates to a semiconductor device handling apparatus and apparatus that includes of a rotary semiconductor device flipper.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: April 2, 2002
    Assignee: National Semiconductor Corporation
    Inventors: Inderjit Singh, Jaime A. Bayan, Hem Takiar, Ashok S. Prabhu