Patents by Inventor Andrew B. Wells

Andrew B. Wells 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: 9733164
    Abstract: A system for creating a substantially planar face in a substrate, the system including directing one or more beams at a first surface of a substrate to remove material from a first location, the beam being offset from a normal to the first surface by a curtaining angle; sweeping the one or more beams in a plane that is perpendicular to the first surface to mill one or more initial cuts, the initial cuts exposing a second surface that is substantially perpendicular to the first surface; rotating the substrate about an axis other than an axis normal to the first beam or parallel to the first beam; directing the first beam at the second surface to remove additional material from the substrate without changing the curtaining angle; and scanning the one or more beams in across the second surface to mill one or more finishing cuts.
    Type: Grant
    Filed: June 11, 2012
    Date of Patent: August 15, 2017
    Assignee: FEI Company
    Inventors: Andrew B. Wells, N. William Parker, Clive D. Chandler, Mark W. Utlaut
  • Patent number: 9591735
    Abstract: An inductively-coupled plasma source for a focused charged particle beam system includes a plasma chamber and a fluid that is not actively pumped surrounding the plasma chamber for providing high voltage isolation between the plasma chamber and nearby parts which are at ground potential, such as a conductive shield. One or more cooling devices cool the plasma chamber by using evaporative cooling and heat pipes to dissipate the heat from the plasma chamber into a surrounding environment.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: March 7, 2017
    Assignee: FEI COMPANY
    Inventors: Sean Kellogg, Andrew B. Wells, James B. McGinn, N. William Parker, Mark W. Utlaut
  • Patent number: 9530625
    Abstract: An inductively coupled plasma charged particle source for focused ion beam systems includes a plasma reaction chamber with a removably attached source electrode. A fastening mechanism connects the source electrode with the plasma reaction chamber and allows for a heat-conductive, vacuum seal to form. With a removable source electrode, improved serviceability and reuse of the plasma source tube are now possible.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: December 27, 2016
    Assignee: FEI COMPANY
    Inventors: Sean Kellogg, Anthony Graupera, William N. Parker, Andrew B. Wells, Mark W. Utlaut, Walter Skoczylas, Gregory A. Schwind, Noel Smith, Shouyin Zhang
  • Publication number: 20150357166
    Abstract: An inductively coupled plasma charged particle source for focused ion beam systems includes a plasma reaction chamber with a removably attached source electrode. A fastening mechanism connects the source electrode with the plasma reaction chamber and allows for a heat-conductive, vacuum seal to form. With a removable source electrode, improved serviceability and reuse of the plasma source tube are now possible.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 10, 2015
    Applicant: FEI Company
    Inventors: Sean Kellogg, Anthony Graupera, William N. Parker, Andrew B. Wells, Mark W. Utlaut, Walter Skoczylas, Gregory A. Schwind, Noel Smith, Shouyin Zhang
  • Patent number: 9053895
    Abstract: An inductively coupled plasma charged particle source for focused ion beam systems includes a plasma reaction chamber with a removably attached source electrode. A fastening mechanism connects the source electrode with the plasma reaction chamber and allows for a heat-conductive, vacuum seal to form. With a removable source electrode, improved serviceability and reuse of the plasma source tube are now possible.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: June 9, 2015
    Assignee: FEI COMPANY
    Inventors: Sean Kellogg, Anthony Graupera, N. William Parker, Andrew B. Wells, Mark W. Utlaut, Walter Skoczylas, Gregory A. Schwind, Shouyin Zhang, Noel Smith
  • Publication number: 20150102230
    Abstract: An inductively-coupled plasma source for a focused charged particle beam system includes a plasma chamber and a fluid that is not actively pumped surrounding the plasma chamber for providing high voltage isolation between the plasma chamber and nearby parts which are at ground potential, such as a conductive shield. One or more cooling devices cool the plasma chamber by using evaporative cooling and heat pipes to dissipate the heat from the plasma chamber into a surrounding environment.
    Type: Application
    Filed: June 21, 2012
    Publication date: April 16, 2015
    Applicant: FEI Company
    Inventors: Sean Kellogg, Andrew B. Wells, James B. Mcginn, N. William Parker, Mark W. Utlaut
  • Patent number: 8928210
    Abstract: An inductively coupled plasma charged particle source for focused ion beam systems includes a plasma reaction chamber with a removably attached source electrode. A fastening mechanism connects the source electrode with the plasma reaction chamber and allows for a heat-conductive, vacuum seal to form. With a removable source electrode, improved serviceability and reuse of the plasma source tube are now possible.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: January 6, 2015
    Assignee: FEI Comapny
    Inventors: Sean Kellogg, Anthony Graupera, N. William Parker, Andrew B. Wells, Mark W. Utlaut, Walter Skoczylas, Gregory A. Schwind, Shouyin Zhang, Noel Smith
  • Patent number: 8642974
    Abstract: An inductively-coupled plasma source for a focused charged particle beam system includes a conductive shield that provides improved electrical isolation and reduced capacitive RF coupling and a dielectric fluid that insulates and cools the plasma chamber. The conductive shield may be enclosed in a solid dielectric media. The dielectric fluid may be circulated by a pump or not circulated by a pump. A heat tube can be used to cool the dielectric fluid.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: February 4, 2014
    Assignee: FEI Company
    Inventors: Sean Kellogg, Andrew B. Wells, James B. McGinn, N. William Parker, Mark W. Utlaut, Anthony Graupera
  • Publication number: 20130328246
    Abstract: A system for creating a substantially planar face in a substrate, the system including directing one or more beams at a first surface of a substrate to remove material from a first location, the beam being offset from a normal to the first surface by a curtaining angle; sweeping the one or more beams in a plane that is perpendicular to the first surface to mill one or more initial cuts, the initial cuts exposing a second surface that is substantially perpendicular to the first surface; rotating the substrate about an axis other than an axis normal to the first beam or parallel to the first beam; directing the first beam at the second surface to remove additional material from the substrate without changing the curtaining angle; and scanning the one or more beams in across the second surface to mill one or more finishing cuts.
    Type: Application
    Filed: June 11, 2012
    Publication date: December 12, 2013
    Applicant: FEI Company
    Inventors: Andrew B. Wells, N. William Parker, Clive D. Chandler, Mark W. Utlaut
  • Publication number: 20130134855
    Abstract: An inductively coupled plasma charged particle source for focused ion beam systems includes a plasma reaction chamber with a removably attached source electrode. A fastening mechanism connects the source electrode with the plasma reaction chamber and allows for a heat-conductive, vacuum seal to form. With a removable source electrode, improved serviceability and reuse of the plasma source tube are now possible.
    Type: Application
    Filed: November 30, 2011
    Publication date: May 30, 2013
    Applicant: FEI Company
    Inventors: Sean Kellogg, Anthony Graupera, N. William Parker, Andrew B. Wells, Mark W. Utlaut, Walter Skoczylas, Gregory A. Schwind, Shouyin Zhang, Noel Smith
  • Publication number: 20110272592
    Abstract: An inductively-coupled plasma source for a focused charged particle beam system includes a conductive shield that provides improved electrical isolation and reduced capacitive RF coupling and a dielectric fluid that insulates and cools the plasma chamber. The conductive shield may be enclosed in a solid dielectric media. The dielectric fluid may be circulated by a pump or not circulated by a pump. A heat tube can be used to cool the dielectric fluid.
    Type: Application
    Filed: June 21, 2011
    Publication date: November 10, 2011
    Applicant: FEI Company
    Inventors: Sean Kellogg, Andrew B. Wells, James B. McGinn, N. William Parker, Mark W. Utlaut, Anthony Graupera
  • Patent number: 7880151
    Abstract: An improved method and apparatus of beam processing corrects for beam drift while a beam is processing a sample. The beam position is aligned using a fiducial that is sufficiently near the working area so that the fiducial can be imaged and the sample processed without a stage moving. During processing, the beam positioning is corrected for drift using a model that predicts the drift.
    Type: Grant
    Filed: February 28, 2008
    Date of Patent: February 1, 2011
    Assignee: FEI Company
    Inventor: Andrew B. Wells
  • Publication number: 20090218488
    Abstract: An improved method and apparatus of beam processing corrects for beam drift while a beam is processing a sample. The beam position is aligned using a fiducial that is sufficiently near the working area so that the fiducial can be imaged and the sample processed without a stage moving. During processing, the beam positioning is corrected for drift using a model that predicts the drift.
    Type: Application
    Filed: February 28, 2008
    Publication date: September 3, 2009
    Applicant: FEI COMPANY
    Inventor: ANDREW B. WELLS