Patents by Inventor Lawrence Ficarra

Lawrence Ficarra 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).

  • Publication number: 20070081880
    Abstract: The invention provides a wafer-handling method, system, and apparatus. In one embodiment, the invention provides a wafer-handling apparatus comprising: a clamping surface for securing a wafer; and a load lock sealing surface for forming an airtight seal with a load lock wall.
    Type: Application
    Filed: September 29, 2005
    Publication date: April 12, 2007
    Inventors: Benjamin Riordon, Lawrence Ficarra, James Buonodono
  • Publication number: 20060258128
    Abstract: Substrate masking apparatus includes a platen assembly to support a substrate for processing, a mask having an aperture, a retaining mechanism to retain the mask in a masking position, and a positioning mechanism to change the relative positions of the mask and the substrate so that different areas of the substrate are exposed through the aperture in the mask. The apparatus may further include a mask loading mechanism to transfer the mask to and between the masking position and a non-masking position. The processing may include ion implantation of the substrate with different implant parameter values in different areas. In other embodiments, an area of the substrate to be processed is selectable by a mask, a shutter or a beam modifier in front of the substrate.
    Type: Application
    Filed: January 11, 2006
    Publication date: November 16, 2006
    Inventors: Peter Nunan, Anthony Renau, Alan Sheng, Paul Murphy, Kyu-Ha Shim, Charles Teodorczyk, Steven Anella, Samuel Barsky, Lawrence Ficarra, Richard Hertel
  • Publication number: 20060124155
    Abstract: A technique for reducing backside particles is disclosed. In one particular exemplary embodiment, the technique may be realized as an apparatus for reducing backside particles. The apparatus may comprise a delivery mechanism configured to supply a cleaning substance to a platen, wherein the platen is housed in a process chamber. The apparatus may also comprise a control unit configured to cause the process chamber to reach a first pressure level, cause the cleaning substance to be supplied to a surface of the platen, and cause the process chamber to reach a second pressure level, thereby removing contaminant particles, together with the cleaning substance, from the surface of the platen.
    Type: Application
    Filed: September 30, 2005
    Publication date: June 15, 2006
    Inventors: David Suuronen, Arthur Riaf, Paul Buccos, Kevin Daniels, Paul Murphy, Lawrence Ficarra, Kenneth Starks
  • Publication number: 20050121626
    Abstract: Methods and systems are provided for increasing the efficiency of the ion beam during scanning workpieces in ion implanting such that multiple wafers are arranged on a platen or support so that a greater portion of the beam scans the workpiece surface. Specifically, an apparatus is provided for ion implanting a plurality of workpieces. The apparatus includes an ion source for generating an ion beam having a scan width and a scan distance which defines a predetermined scan area, a holder for receiving the workpieces that are arranged so as to maximize the surface area of the workpieces present within the predetermined scan area. Thereby, a scanner may scan the ion beam over the predetermined scan area so that the utilization efficiency of said ion beam on the workpieces is increased.
    Type: Application
    Filed: December 8, 2003
    Publication date: June 9, 2005
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Alan Sheng, Beniamin Riordon, Lawrence Ficarra
  • Publication number: 20050121627
    Abstract: An ion implantation apparatus is provided for workpiece handling. The apparatus includes a plurality of scan systems for scanning workpieces in an ion implanting beam, a plurality of exchangers for moving the workpieces to and from the scan systems, and a system controller for positioning one of the workpieces for scanning in the ion implanting beam by one of the scan systems, sensing completion of the ion beam scanning for the one workpiece and simultaneously positioning another of the workpieces for scanning in the ion implanting beam by another of the scan systems so that the workpieces are continuously presented to the ion implanting beam. The apparatus provides continuous implantation relative to the beam, thus enabling wafer exchange to occur in parallel with the implantation process. As a result, significant system productivity improvement and wafer throughput will be realized.
    Type: Application
    Filed: December 8, 2004
    Publication date: June 9, 2005
    Applicant: Varian Semiconductor Equipment Associates, Inc.
    Inventors: Alan Sheng, Benjamin Riordon, Lawrence Ficarra