Patents by Inventor Benjamin J. Meadows

Benjamin J. Meadows 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: 6390889
    Abstract: A holding strip is used to hold a semiconductor ingot during semiconductor wafer fabrication. The holding strip is formed from a semiconductor material, typically the same material used to form the ingot itself. The holding strip has a holding surface shaped to receive the ingot and at least one surface other than the holding surface, into which at least one notch is formed. The holding strip has a characteristic breaking strength that changes when a cut is formed through the holding surface and into the notch. In some embodiments, the notch has sides that are substantially parallel to each other, and in other embodiments, the notch has tapered sides. In alternative embodiments, the shape of the notch causes an abrupt change or a gradual change in the breaking strength of the holding strip as the cut penetrates into the notch. In either case, the notch can be shaped to cause a gradual change in breaking strength as the cut moves deeper into the notch.
    Type: Grant
    Filed: September 29, 1999
    Date of Patent: May 21, 2002
    Assignee: Virginia Semiconductor
    Inventors: A. Dempsey McGregor, Marshall P. Toombs, James E. Brooks, Benjamin J. Meadows
  • Patent number: 6367467
    Abstract: A holding unit is provided to support an ingot in a semiconductor wafer sawing machine, which minimizes the instability of a blade during a sawing process. The holding unit is formed from substantially the same material as an ingot resting thereon. The holding unit includes a top surface for receiving an ingot, a bottom surface, a pair of side walls, and a cavity formed in the holding unit. The cavity forms a plurality of break points in the holding unit. When contacted by the blade, the holding unit fractures at the break points to minimize the chipping of the wafer.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: April 9, 2002
    Assignee: Virginia Semiconductor
    Inventors: A. Dempsey McGregor, Marshall P. Toombs, James E. Brooks, Benjamin J. Meadows
  • Publication number: 20020033171
    Abstract: A holding unit is provided to support an ingot in a semiconductor wafer sawing machine, which minimizes the instability of a blade during a sawing process. The holding unit is formed from substantially the same material as an ingot resting thereon. The holding unit includes a top surface for receiving an ingot, a bottom surface, a pair of side walls, and a cavity formed in the holding unit. The cavity forms a plurality of break points in the holding unit. When contacted by the blade, the holding unit fractures at the break points to minimize the chipping of the wafer.
    Type: Application
    Filed: October 23, 2001
    Publication date: March 21, 2002
    Inventors: A. Dempsey McGregor, Marshall P. Toombs, James E. Brooks, Benjamin J. Meadows