Patents by Inventor Dale Egbert

Dale Egbert 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: 10126326
    Abstract: Apparatus and associated method that contemplates performing a first atomic force microscope (AFM) scan of a first region of a sample centered at a first position at a first angle to produce a first scan image, the first AFM scan including a first component scan at a first speed and a second component scan at a second speed; performing a second AFM scan of the first region of the sample at a second angle to produce a second scan image, the second AFM scan including performing a third component scan at the first speed and a fourth component scan at the second speed; and correcting a first error in the first scan image based on the second scan image to produce a corrected image output.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: November 13, 2018
    Assignee: SEAGATE TECHNOLOGY LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan A. Nelson, Jianxin Zhu
  • Publication number: 20160025772
    Abstract: Apparatus and associated method that contemplates performing a first atomic force microscope (AFM) scan of a first region of a sample centered at a first position at a first angle to produce a first scan image, the first AFM scan including a first component scan at a first speed and a second component scan at a second speed; performing a second AFM scan of the first region of the sample at a second angle to produce a second scan image, the second AFM scan including performing a third component scan at the first speed and a fourth component scan at the second speed; and correcting a first error in the first scan image based on the second scan image to produce a corrected image output.
    Type: Application
    Filed: October 2, 2015
    Publication date: January 28, 2016
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan A. Nelson, Jianxin Zhu
  • Patent number: 9150415
    Abstract: A topographic profile of a structure is generated using atomic force microscopy. The structure is scanned such that an area of interest of the structure is scanned at a higher resolution than portions of the structure outside of the area of interest. An profile of the structure is then generated based on the scan. To correct skew and tilt of the profile, a first feature of the profile is aligned with a first axis of a coordinate system. The profile is then manipulated to align a second feature of the profile with a second axis of the coordinate system.
    Type: Grant
    Filed: July 25, 2008
    Date of Patent: October 6, 2015
    Assignee: Seagate Technology LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan A. Nelson, Jianxin Zhu
  • Patent number: 8525112
    Abstract: A method and associated apparatus for topographically characterizing a workpiece. The workpiece is scanned with a scanning probe along a first directional grid, thereby scanning a reference surface and an area of interest subportion of the reference surface, at a variable pixel density including a first pixel density outside the area of interest and a second pixel density inside the area of interest to derive a first digital file characterizing topography of the workpiece. The workpiece is further scanned along the reference surface and the area of interest with the scanning probe along a second directional grid that is substantially orthogonal to the first directional grid and at a constant pixel density to derive a second digital file characterizing topography of the workpiece. A processor executes computer-readable instructions stored in memory that generate a topographical profile of the workpiece in relation to the first and second digital files.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: September 3, 2013
    Assignee: Seagate Technology LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Peter Gunderson, John Ibele
  • Patent number: 8371155
    Abstract: An apparatus and associated method for topographically characterizing a workpiece. A scanning probe obtains topographical data from the workpiece. A processor controls the scanning probe to scan a reference surface of the workpiece to derive a first digital file and to scan a surface of interest that includes at least a portion of the reference surface to derive a second digital file. Correlation pattern recognition logic integrates the first and second digital files together to align the reference surface with the surface of interest.
    Type: Grant
    Filed: August 10, 2010
    Date of Patent: February 12, 2013
    Assignee: Seagate Technology LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Peter Gunderson, John Ibele, Cing Siong Ling
  • Patent number: 8296860
    Abstract: An atomic force microscopy (AFM) method includes a scanning probe that scans a surface of a structure to produce a first structure image. The structure is then rotated by 90° with respect to the scanning probe. The scanning probe scans the surface of the structure again to produce a second structure image. The first and second structure images are combined to produce best fit image of the surface area of the structure. The same method is used to produce the best fit image of a flat standard. The best fit image of the flat standard is subtracted from the best fit image of the structure to obtain a true topographical image in which Z direction run out error is substantially reduced or eliminated.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: October 23, 2012
    Assignee: Seagate Technology LLC
    Inventors: Huiwen Liu, Lin Zhou, Dale Egbert, Jonathan Arland Nelson, Peter Gunderson
  • Publication number: 20120042422
    Abstract: A method and associated apparatus for topographically characterizing a workpiece. The workpiece is scanned with a scanning probe along a first directional grid, thereby scanning a reference surface and an area of interest subportion of the reference surface, at a variable pixel density including a first pixel density outside the area of interest and a second pixel density inside the area of interest to derive a first digital file characterizing topography of the workpiece. The workpiece is further scanned along the reference surface and the area of interest with the scanning probe along a second directional grid that is substantially orthogonal to the first directional grid and at a constant pixel density to derive a second digital file characterizing topography of the workpiece. A processor executes computer-readable instructions stored in memory that generate a topographical profile of the workpiece in relation to the first and second digital files.
    Type: Application
    Filed: August 10, 2010
    Publication date: February 16, 2012
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Peter Gunderson, John Ibele
  • Publication number: 20110138505
    Abstract: An apparatus and associated method for topographically characterizing a workpiece. A scanning probe obtains topographical data from the workpiece. A processor controls the scanning probe to scan a reference surface of the workpiece to derive a first digital file and to scan a surface of interest that includes at least a portion of the reference surface to derive a second digital file. Correlation pattern recognition logic integrates the first and second digital files together to align the reference surface with the surface of interest.
    Type: Application
    Filed: August 10, 2010
    Publication date: June 9, 2011
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Peter Gunderson, John Ibele, Kah Choong Loo, Cing Siong Ling
  • Publication number: 20100235956
    Abstract: An atomic force microscopy (AFM) method includes a scanning probe that scans a surface of a structure to produce a first structure image. The structure is then rotated by 90° with respect to the scanning probe. The scanning probe scans the surface of the structure again to produce a second structure image. The first and second structure images are combined to produce best fit image of the surface area of the structure. The same method is used to produce the best fit image of a flat standard. The best fit image of the flat standard is subtracted from the best fit image of the structure to obtain a true topographical image in which Z direction run out error is substantially reduced or eliminated.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 16, 2010
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Huiwen Liu, Lin Zhou, Dale Egbert, Jonathan Arland Nelson, Peter Gunderson
  • Publication number: 20080276696
    Abstract: A topographic profile of a structure is generated using atomic force microscopy. The structure is scanned such that an area of interest of the structure is scanned at a higher resolution than portions of the structure outside of the area of interest. An profile of the structure is then generated based on the scan. To correct skew and tilt of the profile, a first feature of the profile is aligned with a first axis of a coordinate system. The profile is then manipulated to align a second feature of the profile with a second axis of the coordinate system.
    Type: Application
    Filed: July 25, 2008
    Publication date: November 13, 2008
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan A. Nelson, Jianxin Zhu
  • Patent number: 7406860
    Abstract: A topographic profile of a structure is generated using atomic force microscopy. The structure is scanned such that an area of interest of the structure is scanned at a higher resolution than portions of the structure outside of the area of interest. An profile of the structure is then generated based on the scan. To correct skew and tilt of the profile, a first feature of the profile is aligned with a first axis of a coordinate system. The profile is then manipulated to align a second feature of the profile with a second axis of the coordinate system.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: August 5, 2008
    Assignee: Seagate Technology LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan A. Nelson, Jianxin Zhu
  • Publication number: 20070251306
    Abstract: A topographic profile of a structure is generated using atomic force microscopy. The structure is scanned such that an area of interest of the structure is scanned at a higher resolution than portions of the structure outside of the area of interest. An profile of the structure is then generated based on the scan. To correct skew and tilt of the profile, a first feature of the profile is aligned with a first axis of a coordinate system. The profile is then manipulated to align a second feature of the profile with a second axis of the coordinate system.
    Type: Application
    Filed: April 28, 2006
    Publication date: November 1, 2007
    Applicant: Seagate Technology LLC
    Inventors: Lin Zhou, Huiwen Liu, Dale Egbert, Jonathan Nelson, Jianxin Zhu
  • Publication number: 20070151094
    Abstract: A method and apparatus are provided for adjusting recession of an element, such as a pole tip, in a transducer structure formed in a plurality of thin film layers on an edge of a slider. A pre-stressed structure is formed as part of the plurality of thin film layers on the edge of the slider. The pre-stressed structure has a level of material stress. The recession is measured relative to a bearing surface of the slider, and then the level of material stress is adjusted as a function of the measured to effect a corresponding change in the recession.
    Type: Application
    Filed: March 13, 2007
    Publication date: July 5, 2007
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Youping Mei, Jun Mou, Dale Egbert, Ling Ma
  • Publication number: 20060061910
    Abstract: A sensor comprises a transducer portion including a semi-permanently deformable portion. A deformation of the semi-permanently deformable portion in response to an activation energy deforms the transducer portion. The deformation is retained after the activation energy is removed. In another embodiment of the invention, a transducer comprises a body having an active element, a magnetostrictive element and a magnet having a magnetic field. The magnetic field causes a deformation of the magnetostrictive portion thereby adjusting the position of the active element.
    Type: Application
    Filed: November 2, 2005
    Publication date: March 23, 2006
    Applicant: Seagate Technology LLC
    Inventors: Jeremy Thurn, Declan Macken, Dale Egbert
  • Publication number: 20050047017
    Abstract: A method and apparatus are provided for adjusting recession of an element, such as a pole tip, in a transducer structure formed in a plurality of thin film layers on an edge of a slider. A pre-stressed structure is formed as part of the plurality of thin film layers on the edge of the slider. The pre-stressed structure has a level of material stress. The recession is measured relative to a bearing surface of the slider, and then the level of material stress is adjusted as a function of the measured to effect a corresponding change in the recession.
    Type: Application
    Filed: August 14, 2003
    Publication date: March 3, 2005
    Applicant: Seagate Technology LLC
    Inventors: Youping Mei, Jun Mou, Dale Egbert, Ling Ma