Patents by Inventor Senia L. Derbinski

Senia L. Derbinski 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: 5820329
    Abstract: A wafer is clamped to a wafer holder for processing with a front plane clamping ring and backplane clips without sliding or rolling contact with the wafer that would tend to increase particulate contamination. A load arm moves a semiconductor wafer, device side first, forwardly into a loading chamber, for example a loadlock, and through an opening in a wafer holder within the chamber, where the wafer contacts the underside of an annular clamping ring, which is attached to the holder body by springs, to displace the ring away in a forwardly direction from the holder. The ring is displaced, for example, sufficiently from the holder, preferably 30 to 40 thousandths of an inch or more for standard thickness semiconductor wafers, to clear a plane at the back of the holder in which lie a plurality of clips. Latch actuators on the load arm engage and rotate the clips into the opening behind the wafer when the wafer is displaced in a forward direction out of the plane.
    Type: Grant
    Filed: April 10, 1997
    Date of Patent: October 13, 1998
    Assignee: Tokyo Electron Limited
    Inventors: Senia L. Derbinski, Richard Fred Parker