Patents Represented by Attorney Joseph Van Leeuwen
  • Patent number: 5890269
    Abstract: A semiconductor wafer comprising a single crystalline lattice suitable for use in the manufacture of integrated circuits, namely computer chips and dies, wherein a diameter of the wafer is greater than approximately 150 millimeters and wherein the wafer includes a first hole extending through the wafer. The hole is adapted to facilitate handling of the wafer without directly contacting a surface of the wafer. The wafer preferably includes a primary flat and the first hole includes a flat side having a predetermined and known orientation with respect to the primary flat of the wafer. In one embodiment, the wafer further includes a guide hole formed near the first hole such that the center-points of the first hole and the guide hole are oriented with a predetermined and known orientation with respect to the primary flat of the wafer.
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: April 6, 1999
    Assignee: Advanced Micro Devices
    Inventors: Mark I. Gardner, Mark C. Gilmer