Patents by Inventor David Foord

David Foord 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: 10325754
    Abstract: Implanting a material in a pattern hardens the material in the pattern for subsequent etching. When the region is etched, by ion beam sputtering, chemically enhanced charged particle beam etching, or chemical etching, a thicker structure remains because of the reduced etch rate of the hardened pattern. The invention is particularly useful for the preparation of thin lamella for viewing on a transmission electron microscope.
    Type: Grant
    Filed: January 10, 2014
    Date of Patent: June 18, 2019
    Assignee: FEI COMPANY
    Inventors: David Foord, Chad Rue
  • Patent number: 9618460
    Abstract: The invention relates to a method of performing tomographic imaging involving repeatedly directing a charged particle beam through a sample for a series of sample tilts to acquire a corresponding set of images and mathematically combining the images to construct a composite image. The latter of which consists of, at each of a second series of sample tilts, using a spectral detector to accrue a spectral map of said sample, thus acquiring a collection of spectral maps; analyzing said spectral maps to derive compositional data of the sample; and employing said compositional data in constructing said composite image.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 11, 2017
    Assignee: FEI Company
    Inventors: Remco Schoenmakers, David Foord
  • Patent number: 9514913
    Abstract: A system and method for transmission electron microscopy is provided. The sample can be examined from multiple directions using an electron beam in a transmission electron microscope. The sample has at least three observation faces that are not parallel to each other with the thickness of the sample orthogonal to each of the observation faces being less than 200 nm. The sample is mounted on a needle that is needle rotatable about more than one axis so the needle can orient at least three of the observation faces to be normal to the electron beam of the electron microscope for observation.
    Type: Grant
    Filed: July 17, 2015
    Date of Patent: December 6, 2016
    Assignee: FEI COMPANY
    Inventor: David Foord
  • Publication number: 20160020065
    Abstract: A system and method for transmission electron microscopy is provided. The sample can be examined from multiple directions using an electron beam in a transmission electron microscope. The sample has at least three observation faces that are not parallel to each other with the thickness of the sample orthogonal to each of the observation faces being less than 200 nm. The sample is mounted on a needle that is needle rotatable about more than one axis so the needle can orient at least three of the observation faces to be normal to the electron beam of the electron microscope for observation.
    Type: Application
    Filed: July 17, 2015
    Publication date: January 21, 2016
    Applicant: FEI Company
    Inventor: David Foord
  • Publication number: 20150348752
    Abstract: Implanting a material in a pattern hardens the material in the pattern for subsequent etching. When the region is etched, by ion beam sputtering, chemically enhanced charged particle beam etching, or chemical etching, a thicker structure remains because of the reduced etch rate of the hardened pattern. The invention is particularly useful for the preparation of thin lamella for viewing on a transmission electron microscope.
    Type: Application
    Filed: January 10, 2014
    Publication date: December 3, 2015
    Applicant: FEI COMPANY
    Inventors: David Foord, Chad Rue
  • Patent number: 8766214
    Abstract: The invention relates to a method of preparing and imaging a sample using a particle-optical apparatus, equipped with an electron column and an ion beam column, a camera system, a manipulator. The method comprises the steps of deriving a first ptychographic image of the sample from a first electron image, thinning the sample, and forming a second ptychographic image of the sample. In an embodiment of the invention the seed image used for the second image is the first ptychographic image. In another embodiment the second ptychographic image is the image of the layer removed during the thinning. In another embodiment the inner potential of the sample is determined and dopant concentrations are determined.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: July 1, 2014
    Assignee: FEI Company
    Inventors: Brian Roberts Routh, Jr., Peter Christiaan Tiemeijer, Bart Jozef Janssen, Thomas G. Miller, David Foord, Ivan Lazić
  • Publication number: 20140070095
    Abstract: The invention relates to a method of performing tomographic imaging involving repeatedly directing a charged particle beam through a sample for a series of sample tilts to acquire a corresponding set of images and mathematically combining the images to construct a composite image. The latter of which consists of, at each of a second series of sample tilts, using a spectral detector to accrue a spectral map of said sample, thus acquiring a collection of spectral maps; analyzing said spectral maps to derive compositional data of the sample; and employing said compositional data in constructing said composite image.
    Type: Application
    Filed: September 9, 2013
    Publication date: March 13, 2014
    Applicant: FEI Company
    Inventors: Remco Schoenmakers, David Foord
  • Publication number: 20140007307
    Abstract: The invention relates to a method of preparing and imaging a sample using a particle-optical apparatus, equipped with an electron column and an ion beam column, a camera system, a manipulator. The method comprising comprises the steps of deriving a first ptychographic image of the sample from a first electron image, thinning the sample, and forming a second ptychographic image of the sample. In an embodiment of the invention the seed image used for the second image is the first ptychografic image. In another embodiment the second ptychographic image is the image of the layer removed during the thinning. In another embodiment the inner potential of the sample is determined and dopant concentrations are determined.
    Type: Application
    Filed: June 17, 2013
    Publication date: January 2, 2014
    Inventors: Brian Roberts Routh, JR., Peter Christiaan Tiemeijer, Bart Jozef Janssen, Thomas G. Miller, David Foord, Ivan Lazic