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: 20200363450Abstract: 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: ApplicationFiled: May 14, 2019Publication date: November 19, 2020Inventors: Andrew Norman Erickson, Kyle Alfred Hofstatter
-
Patent number: 10816571Abstract: 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: GrantFiled: May 14, 2019Date of Patent: October 27, 2020Assignee: Angstrom Science, Inc.Inventors: Andrew Norman Erickson, Kyle Alfred Hofstatter
-
Publication number: 20200240576Abstract: 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: ApplicationFiled: January 30, 2020Publication date: July 30, 2020Inventor: Andrew Norman Erickson
-
Patent number: 10260914Abstract: 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: GrantFiled: January 29, 2018Date of Patent: April 16, 2019Assignee: Angstrom Science, Inc.Inventors: Stephen Bradley Ippolito, Andrew Norman Erickson, Kyle Alfred Hofstatter
-
Patent number: 9869696Abstract: 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: GrantFiled: February 3, 2016Date of Patent: January 16, 2018Assignee: FEI EFA, INC.Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Sean Zumwalt
-
Patent number: 9797922Abstract: 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: GrantFiled: February 18, 2016Date of Patent: October 24, 2017Assignee: Angstrom Science, Inc.Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito
-
Publication number: 20170003336Abstract: 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: ApplicationFiled: June 14, 2016Publication date: January 5, 2017Applicant: DCG Systems, Inc.Inventors: Stephen Ippolito, Sean Zumwalt, Andrew Norman Erickson
-
Publication number: 20160231353Abstract: 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: ApplicationFiled: February 3, 2016Publication date: August 11, 2016Applicant: DCG Systems, Inc.Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Sean Zumwalt
-
Publication number: 20160202288Abstract: 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: ApplicationFiled: February 18, 2016Publication date: July 14, 2016Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito
-
Patent number: 9366695Abstract: 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: GrantFiled: July 22, 2015Date of Patent: June 14, 2016Assignee: Angstrom Science, Inc.Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Kyle Alfred Hofstatter
-
Publication number: 20160025771Abstract: 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: ApplicationFiled: July 22, 2015Publication date: January 28, 2016Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Kyle Alfred Hofstatter
-
Publication number: 20150338627Abstract: 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: ApplicationFiled: May 21, 2015Publication date: November 26, 2015Inventors: Andrew Norman Erickson, Stephen Bradley Ippolito, Anton Lewis Riley
-
Patent number: 7444857Abstract: 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: GrantFiled: September 29, 2005Date of Patent: November 4, 2008Assignee: Multiprobe, Inc.Inventors: Casey Patrick Hare, Andrew Norman Erickson
-
Patent number: 7415868Abstract: 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: GrantFiled: March 20, 2006Date of Patent: August 26, 2008Assignee: Multiprobe, Inc.Inventors: Casey Patrick Hare, Andrew Norman Erickson
-
Patent number: 6951130Abstract: 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: GrantFiled: December 17, 2004Date of Patent: October 4, 2005Assignee: Multiprobe, Inc.Inventors: Casey Patrick Hare, Andrew Norman Erickson
-
Patent number: 6880389Abstract: 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: GrantFiled: July 7, 2003Date of Patent: April 19, 2005Assignee: Multiprobe, Inc.Inventors: Casey Patrick Hare, Andrew Norman Erickson
-
Publication number: 20040025578Abstract: 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: ApplicationFiled: July 7, 2003Publication date: February 12, 2004Inventors: Casey Patrick Hare, Andrew Norman Erickson
-
Patent number: 6287880Abstract: 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: GrantFiled: December 29, 2000Date of Patent: September 11, 2001Assignee: Veeco Instruments Inc.Inventors: Andrew Norman Erickson, Peter De Wolf