Patents by Inventor Leland F. Gotcher, Jr.

Leland F. Gotcher, Jr. 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).

  • Polishing chucks, semiconductor wafer polishing chucks, abrading methods, polishing methods, semiconductor wafer polishing methods, and methods of forming polishing chucks
    Patent number: 6174221
    Abstract: Polishing chucks, semiconductor wafer polishing chucks, abrading methods, polishing methods, semiconductor wafer polishing methods, and methods of forming polishing chucks are described. In one embodiment, a polishing chuck includes a body dimensioned to hold a work piece, and a multi-positionable, force-bearing engagement surface is positioned on the body to engage at least a portion of a work piece held thereby. The surface has an undeflected position, and is bi-directionally deflectable away from the undeflected position. In another embodiment, a yieldable engagement surface is provided on the body and has a central area and a peripheral area outward of the central area. One of the central and peripheral areas is movable, relative to the other of the areas to provide both inwardly and outwardly flexed surface configurations. In yet another embodiment, a generally planar surface is provided on the body and positioned to receive the work piece thereagainst.
    Type: Grant
    Filed: September 1, 1998
    Date of Patent: January 16, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Leland F. Gotcher, Jr.
  • Polishing chucks, semiconductor wafer polishing chucks, abrading methods, polishing methods, semiconductor wafer polishing methods, and methods of forming polishing chucks
    Patent number: 6168504
    Abstract: Polishing chucks, semiconductor wafer polishing chucks, abrading methods, polishing methods, semiconductor wafer polishing methods, and methods of forming polishing chucks are described. In one embodiment, a polishing chuck includes a body dimensioned to hold a work piece, and a multi-positionable, force-bearing engagement surface is positioned on the body to engage at least a portion of a work piece held thereby. The surface has an undeflected position, and is bi-directionally deflectable away from the undeflected position. In another embodiment, a yieldable engagement surface is provided on the body and has a central area and a peripheral area outward of the central area. One of the central and peripheral areas is movable, relative to the other of the areas to provide both inwardly and outwardly flexed surface configurations. In yet another embodiment, a generally planar surface is provided on the body and positioned to receive the work piece thereagainst.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: January 2, 2001
    Assignee: Micron Technology, Inc.
    Inventor: Leland F. Gotcher, Jr.