Patents by Inventor Andrew Norman Erickson

Andrew Norman Erickson 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: 20200363450
    Abstract: This specification discloses a method and implementations improving the field of holding or mounting Scanning Probe Microscopy probe tips for use and alignment. Specifically, the invention allows probes to be mounted replaceably to a very small SPM actuator and aligned in 5 axis permitting alignment of cantilever to beam and reflected beam to detector. The invention allows for great simplification of SPM design while allowing reduction in sizes and masses of tip mounting apparatus thereby improving performance.
    Type: Application
    Filed: May 14, 2019
    Publication date: November 19, 2020
    Inventors: Andrew Norman Erickson, Kyle Alfred Hofstatter
  • Patent number: 10816571
    Abstract: This specification discloses a method and implementations improving the field of holding or mounting Scanning Probe Microscopy probe tips for use and alignment. Specifically, the invention allows probes to be mounted replaceably to a very small SPM actuator and aligned in 5 axis permitting alignment of cantilever to beam and reflected beam to detector. The invention allows for great simplification of SPM design while allowing reduction in sizes and masses of tip mounting apparatus thereby improving performance.
    Type: Grant
    Filed: May 14, 2019
    Date of Patent: October 27, 2020
    Assignee: Angstrom Science, Inc.
    Inventors: Andrew Norman Erickson, Kyle Alfred Hofstatter
  • Publication number: 20200240576
    Abstract: A positioning stage employs a constraining plate having three contact elements fixed therein, each contact element protruding from the constraining plate providing a lower engagement surface and an upper engagement surface. A first plate has at least two slots aligned for a first axis of translation. The slots are engaged by the lower engagement surfaces the contact elements. A second plate has at least two slots aligned for a second axis of translation. The slots are engaged by the upper engagement surface of two of the contact elements, thereby providing two axes of motion for positioning.
    Type: Application
    Filed: January 30, 2020
    Publication date: July 30, 2020
    Inventor: Andrew Norman Erickson
  • Patent number: 10260914
    Abstract: A displacement sensor has a graded index multi-mode fiber with a length that is an odd multiple of a quarter pitch length of the graded index multi-mode fiber and a single-mode optical fiber fusion spliced to the first end of said graded index multi-mode fiber. A reflective mirror coating is applied to a planar facet on the second end of said graded index multi-mode fiber. A plurality of mechanical attachments are spaced along the graded index multi-mode fiber and single-mode optical fiber that mechanically deform said graded index multi-mode fiber, when any one of said plurality of mechanical attachments is displaced relative to any other one of said plurality of mechanical attachments.
    Type: Grant
    Filed: January 29, 2018
    Date of Patent: April 16, 2019
    Assignee: Angstrom Science, Inc.
    Inventors: Stephen Bradley Ippolito, Andrew Norman Erickson, Kyle Alfred Hofstatter
  • Patent number: 9869696
    Abstract: Using a local-potential-driving probe drives a conductor to a known potential while adjacent lines are grounded through the sample body reduces electrostatic scanning microscope signal from adjacent lines, allows imaging of metal lines deeper in the sample. Providing different potentials locally on different conductive lines using multiple local-potential-driving probes allows different conductors to be highlighted in the same image, for example, by changing the phase of the signal being applied to the different local-potential-driving probes.
    Type: Grant
    Filed: February 3, 2016
    Date of Patent: January 16, 2018
    Assignee: FEI EFA, INC.
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Sean Zumwalt
  • Patent number: 9797922
    Abstract: A SPM head incorporates a probe and a cantilever on which the probe is mounted. The cantilever has a planar reflecting surface proximate a free end of the cantilever. The cantilever extends from a mechanical mount and a single-mode optical fiber is supported by the mechanical mount to provide a beam. A micromirror is mounted to reflect the beam substantially 90° to the planar reflecting surface.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: October 24, 2017
    Assignee: Angstrom Science, Inc.
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito
  • Publication number: 20170003336
    Abstract: Milling using a scanning probe microscope with a diamond tip removes a layer of material and produces a surface that is sufficiently smooth that it can be probed using a nanoprober to provide site-specific sample preparation and delayering. Diamond milling provides in situ, localized, precision delayering inside of a nanoprobing tool, thereby decreasing the turnaround time for integrated circuit analysis. Furthermore, unlike focused ion beam delayering, the diamond tip should not alter the electrical characteristics of the integrated circuit.
    Type: Application
    Filed: June 14, 2016
    Publication date: January 5, 2017
    Applicant: DCG Systems, Inc.
    Inventors: Stephen Ippolito, Sean Zumwalt, Andrew Norman Erickson
  • Publication number: 20160231353
    Abstract: Using a local-potential-driving probe drives a conductor to a known potential while adjacent lines are grounded through the sample body reduces electrostatic scanning microscope signal from adjacent lines, allows imaging of metal lines deeper in the sample. Providing different potentials locally on different conductive lines using multiple local-potential-driving probes allows different conductors to be highlighted in the same image, for example, by changing the phase of the signal being applied to the different local-potential-driving probes.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 11, 2016
    Applicant: DCG Systems, Inc.
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Sean Zumwalt
  • Publication number: 20160202288
    Abstract: A SPM head incorporates a probe and a cantilever on which the probe is mounted. The cantilever has a planar reflecting surface proximate a free end of the cantilever. The cantilever extends from a mechanical mount and a single-mode optical fiber is supported by the mechanical mount to provide a beam. A micromirror is mounted to reflect the beam substantially 90° to the planar reflecting surface.
    Type: Application
    Filed: February 18, 2016
    Publication date: July 14, 2016
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito
  • Patent number: 9366695
    Abstract: A SPM head incorporates a probe and a cantilever on which the probe is mounted. The cantilever has a planar reflecting surface proximate a free end of the cantilever. The cantilever extends from a mechanical mount and a single-mode optical fiber is supported by the mechanical mount to provide a beam axis at an angle away from normal relative to the reflecting surface.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: June 14, 2016
    Assignee: Angstrom Science, Inc.
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Kyle Alfred Hofstatter
  • Publication number: 20160025771
    Abstract: A SPM head incorporates a probe and a cantilever on which the probe is mounted. The cantilever has a planar reflecting surface proximate a free end of the cantilever. The cantilever extends from a mechanical mount and a single-mode optical fiber is supported by the mechanical mount to provide a beam axis at an angle away from normal relative to the reflecting surface.
    Type: Application
    Filed: July 22, 2015
    Publication date: January 28, 2016
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Kyle Alfred Hofstatter
  • Publication number: 20150338627
    Abstract: A near-field optic has a high refractive index waveguide with a planar far field facet more than half of a wavelength across for coupling propagating light and a near field facet with the near field zone of the waveguide supporting only the fundamental optical mode in each polarization. A tapered waveguide section extends from the near field facet to transform the fundamental optical mode. A cantilever supports the tapered waveguide section.
    Type: Application
    Filed: May 21, 2015
    Publication date: November 26, 2015
    Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Anton Lewis Riley
  • Patent number: 7444857
    Abstract: A method and apparatus for scanning multiple scanning probe microscopes in close proximity, to scan overlapping scan areas at the same time while avoiding collision employs a control system providing drive signals to a first Atomic Force Microscope (AFM) and calculated drive signals to additional AFMs based on the first drive signals and the relative position of the additional AFMs to the first AFM for consistent spaced motion. Scanning and Failure Analysis (FA) probing of multiple feature of interest using multiple APMs allows for reduced time for locating FA features to set up measurements.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: November 4, 2008
    Assignee: Multiprobe, Inc.
    Inventors: Casey Patrick Hare, Andrew Norman Erickson
  • Patent number: 7415868
    Abstract: The present invention comprises an apparatus and a method for using multiple scanning probes to deconvolve tip artifacts in scanning probe microscopes and other scanning probe systems. The invention uses multiple scanning probe tips of different geometries or orientations to scan a feature, such as a semiconductor line or trench, and to display the scan data such that tip artifacts from each tip can be omitted from the measurement by data from the other tips.
    Type: Grant
    Filed: March 20, 2006
    Date of Patent: August 26, 2008
    Assignee: Multiprobe, Inc.
    Inventors: Casey Patrick Hare, Andrew Norman Erickson
  • Patent number: 6951130
    Abstract: A method and apparatus for scanning multiple scanning probe microscopes in close proximity, to scan overlapping scan areas at the same time while avoiding collision employs a control system providing drive signals to a first Atomic Force Microscope (AFM) and calculated drive signals to additional AFMs based on the first drive signals and the relative position of the additional AFMs to the first AFM for consistent spaced motion. Scanning and Failure Analysis (FA) probing of multiple feature of interest using multiple APMs allows for reduced time for locating FA features to set up measurements.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: October 4, 2005
    Assignee: Multiprobe, Inc.
    Inventors: Casey Patrick Hare, Andrew Norman Erickson
  • Patent number: 6880389
    Abstract: A method and apparatus for scanning multiple scanning probe microscopes in close proximity, to scan overlapping scan areas at the same time while avoiding collision employs a control system providing drive signals to a first Atomic Force Microscope (AFM) and calculated drive signals to additional AFMs based on the first drive signals and the relative position of the additional AFMs to the first AFM for consistent spaced motion. Scanning and Failure Analysis (FA) probing of multiple feature of interest using multiple APMs allows for reduced time for locating FA features to set up measurements.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: April 19, 2005
    Assignee: Multiprobe, Inc.
    Inventors: Casey Patrick Hare, Andrew Norman Erickson
  • Publication number: 20040025578
    Abstract: A method and apparatus for scanning multiple scanning probe microscopes in close proximity, to scan overlapping scan areas at the same time while avoiding collision employs a control system providing drive signals to a first Atomic Force Microscope (AFM) and calculated drive signals to additional AFMs based on the first drive signals and the relative position of the additional AFMs to the first AFM for consistent spaced motion. Scanning and Failure Analysis (FA) probing of multiple feature of interest using multiple APMs allows for reduced time for locating FA features to set up measurements.
    Type: Application
    Filed: July 7, 2003
    Publication date: February 12, 2004
    Inventors: Casey Patrick Hare, Andrew Norman Erickson
  • Patent number: 6287880
    Abstract: A method for determining the characteristics of a doped semiconductor substrate is disclosed, wherein a scanning probe microscope, preferably an atomic force microscope, is used to move a probe across a sample surface gathering electrical measurements at many locations. The probe tip is conductive and is connected to a control circuit that applies a voltage to the probe and to an electrode fixed to the semiconductor substrate. Preferably, the current that flows through the sample is measured and saved, together with the position of the probe on the surface of the sample. In this manner, the characteristics of the doped sample can be determined at many different locations with many different degrees of doping. The sample is prepared by doping its top surface, then machining off the top surface to provide access to the sample at different doping depths.
    Type: Grant
    Filed: December 29, 2000
    Date of Patent: September 11, 2001
    Assignee: Veeco Instruments Inc.
    Inventors: Andrew Norman Erickson, Peter De Wolf