Patents by Inventor Luisarita Atzei

Luisarita Atzei 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: 6309979
    Abstract: A method in a high density plasma chamber for protecting a semiconductor substrate from charging damage from plasma-induced current through the substrate while etching through a selected portion of a conductive layer above the substrate. The method includes performing a bulk etch at least partially through the selected portion of the conductive layer using a first power setting for a plasma generating source of the high density plasma chamber. The method further includes performing a clearing etch through the selected portion of the conductive layer using a second power setting for the plasma generating source. In accordance with this embodiment, the second power setting is substantially minimized to reduce the charging damage.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: October 30, 2001
    Assignee: Lam Research Corporation
    Inventors: Roger Patrick, Stanley C. Siu, Luisarita Atzei