Patents by Inventor Dennis Moffat MacDonald

Dennis Moffat MacDonald 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).

  • Method and apparatus for stacking semiconductor wafers
    Patent number: 7114908
    Abstract: An apparatus for stacking semiconductor wafers comprises a housing configured to releasably maintain a plurality of semiconductor wafers in fixed positions relative to the housing. The apparatus also includes a transfer guide proximate to the housing, the transfer guide configured to facilitate the transfer of the plurality of semiconductor wafers into the housing. Also included is a member configured to detach the semiconductor wafers from the housing so as to collect the semiconductor wafers into a stack.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: October 3, 2006
    Assignee: National Semiconductor Corporation
    Inventors: Roger Sarver, Dennis Moffat MacDonald