Patents by Inventor Connie Fassett Littell

Connie Fassett Littell 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).

  • Flex tab thick film metal mask to deposit coating material
    Patent number: 5807610
    Abstract: A mask for printing a pattern on a substrate comprises a sheet preferably of metal having a printing pattern thereon comprising through mask openings in the sheet. The through mask openings are interconnected by tabs or bridges which have a structure which provides a bending moment in a portion of the tab when a force is applied to the mask to force material to be deposited on the substrate through the mask openings. A preferred tab structure has a step shape and at least one through opening in the tab. The step shape and through mask opening both provide bending moments in the tab and the through opening also provides enhanced patterning definition because the deposition material flows both under the tab and through the through tab opening. The masks have a longer operating life than conventional masks and enhanced operating characteristics.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: September 15, 1998
    Assignee: International Business Machines Corporation
    Inventors: Harry David Cox, Connie Fassett Littell, Richard Michael Shroedl, John Amodio Trumpetto, Michael Stephen Vanca
  • Flex tab thick film metal mask
    Patent number: 5669972
    Abstract: A mask for printing a pattern on a substrate comprises a sheet preferably of metal having a printing pattern thereon comprising through mask openings in the sheet. The through mask openings are interconnected by tabs or bridges which have a structure which provides a bending moment in a portion of the tab when a force is applied to the mask to force material to be deposited on the substrate through the mask openings. A preferred tab structure has a step shape and at least one through opening in the tab. The step shape and through mask opening both provide bending moments in the tab and the through opening also provides enhanced patterning definition because the deposition material flows both under the tab and through the through tab opening. The masks have a longer operating life than conventional masks and enhanced operating characteristics.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: September 23, 1997
    Assignee: International Business Machines Corporation
    Inventors: Harry David Cox, Connie Fassett Littell, Richard Michael Shroedl, John Amodio Trumpetto, Michael Stephen Vanca