Patents by Inventor Steve Egbert

Steve Egbert 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: 5863170
    Abstract: A modular semiconductor wafer processing system comprises a plurality of detachable process reactors and other types of generators that can be quick-clamped to any of several ports on the lid of a circular wafer handling chamber. A multiple-spoke single-axis rigid-arm transfer carousel centrally located within the circular wafer handling chamber has access to the respective process areas beneath each port in the lid. A set of independent cylindrical rings are provided to rise up from the floor of the circular wafer handling chamber to contact and seal against the lid to isolate each of the process stations. The multiple-spoke single-axis rigid-arm transfer carousel is automatically positioned out of the way before the cylindrical rings are raised and sealed.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: January 26, 1999
    Assignee: GaSonics International
    Inventors: Charles A. Boitnott, James W. Caughran, Steve Egbert
  • Patent number: 5855465
    Abstract: A semiconductor wafer processing carousel comprises an elevator chamber that accepts cassettes loaded with semiconductor wafers through a removable vacuum lock door, an elevator platform on which the cassettes ride up and down, an elevator drive to automatically position the elevator platform, a lid and a circular wafer handling chamber with an anteroom chamber connection to the elevator chamber. A double-axis wafer transfer arm provides for linear transfer through the anteroom chamber of selected wafers between the cassettes and a first pre-heating and cool-down process station within the circular wafer handling chamber. A multiple-spoke single-axis rigid-arm transfer carousel is centrally located within the circular wafer handling chamber and has access to multiple process stations. A set of independent cylindrical rings are positioned to rise up from the handling chamber bottom of the circular wafer handling chamber to contact and seal against the lid to isolate each of the process stations.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: January 5, 1999
    Assignee: GaSonics International
    Inventors: Charles A. Boitnott, James W. Caughran, Steve Egbert
  • Patent number: 5667592
    Abstract: A modular semiconductor wafer processing system comprises a plurality of detachable process reactors and other types of generators that can be attached to any of several ports on the lid of a circular wafer handling chamber. A multiple-spoke single-axis rigid-arm transfer carousel centrally located within the circular wafer handling chamber has access to the respective process areas beneath each port in the lid. A set of independent cylindrical sleeves with sealing rings are provided to rise up from the floor of the circular wafer handling chamber to contact and seal against the lid to isolate each of the process stations. The multiple-spoke single-axis rigid-arm transfer carousel is automatically positioned out of the way before the cylindrical rings are raised and sealed.
    Type: Grant
    Filed: April 16, 1996
    Date of Patent: September 16, 1997
    Assignee: Gasonics International
    Inventors: Charles A. Boitnott, James W. Caughran, Steve Egbert