Patents by Inventor David S. McStay

David S. McStay 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: 6149368
    Abstract: A wafer disk pad is presented having one or more wafer loading points to facilitate wafer loading and unloading using a vacuum wand. The wafer loading points comprise grooves in a base plate. Each groove begins at a frontside surface of the base plate, extends under a portion of an upper surface of the base plate reserved for wafer placement, and is dimensioned to receive a tip of a vacuum wand. In one embodiment, the base plate includes a pair of grooves. A first groove is located on a left side of the wafer disk pad, and is conveniently located and oriented for left-handed operators. A second groove is located on a right side of the wafer disk pad, and is conveniently located and oriented for right-handed operators facing the frontside surface. Each groove is preferably sloped to facilitate separation of the semiconductor wafer from the pad. The depth of each groove is greatest at the frontside surface and decreases with increasing lateral distance into the base plate from the frontside surface.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: November 21, 2000
    Assignee: Advanced Micro Devices, Inc.
    Inventors: J. Carlos Reyes, Jr., David S. McStay, Donald L. Friede